M45 – The Pleiades Cluster

M45 - The Pleiades Cluster

The Pleiades, also known as M45, the Seven Sisters or Subaru (Japan), is an open star cluster containing middle-aged stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

[Info from Wikipedia]

ZWO ASI1600MC-Pro with Baader IR/UV cut filter
Explore Scientific ED80
Celestron AVX Mount, guided
105 minutes of integration time

Shot from the L&A County Dark Sky Viewing Area in Erinsville, Ontario

Posted by Dark Arts Astrophotography on 2018-08-11 20:24:48

Tagged: , astrophotography , astronomy , space , Sky , stars , star , science , m45 , Subaru , subarudarksky , Pleiades , Cluster , Messier

M45- The Pleiades Cluster

M45- The Pleiades Cluster

The Pleiades, also known as M45, the Seven Sisters or Subaru (Japan), is an open star cluster containing middle-aged stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

[Info from Wikipedia]

Nikon D7000
Explore Scientific ED80
Celestron AVX Mount
9 x 120 second exposures @ ISO 1600

Shot from the North Frontenac Township Dark Sky Preseve near Plevna, Ontario

Posted by Dark Arts Astrophotography on 2016-08-28 16:26:41

Tagged: , astrophotography , astronomy , space , stars , Sky , star , Cluster , Pleiades , Subaru , night , Nebula , nature , natur

Blue space nebula

Blue space nebula

Blue space nebula as abstract background

Posted by Renato Gurgel on 2011-01-10 01:27:19

Tagged: , blue , purple , magenta , nebula , star , space , night , astronomy , field , way , milky , bright , galaxy , fractal , backgrounds , sky , light , outer , glowing , dark , science , dust , infinity , awe , abstract , cluster , looking , forecasting , deep , glitter , rendering , black , computer , illustration , swirl , alien , ethereal , eternity , cosmos , astral , natural , fantasy

Pléyades y cometa Panstarrs

Pléyades y cometa Panstarrs

60 exposiciones de 90 segundos con teleobjetivo 200 mm f/1.8, ISO 1.600, cámara Canon EOS 6D modificada. Centro, (AR): 03h 45m 39.227s,
(Dec.): +23° 48′ 16.552". Campo angular: 10.8º x 7.1º. Escala: 19.5 arcsec/pixel.

Pléyades, M45. Es un cúmulo estelar abierto que contiene estrellas calientes de tipo espectral B, ubicadas en la constelación Tauro. Está entre uno de los cúmulos estelares más cercanos a la Tierra, y es el cúmulo mejor visible a simple vista en el cielo nocturno. Las Pléyades albergan un prominente lugar en la mitología antigua, así como una diversidad de significados en diferentes culturas y tradiciones.
El cúmulo está dominado por estrellas calientes extremadamente azules y luminosas que se han formado en los últimos 100 millones de años. El polvo que forma una débil nebulosidad de reflexión alrededor de las estrellas más brillantes se pensó en un principio que provenía de una disgregación de la propia formación del cúmulo (de ahí el nombre alternativo para nebulosa Maia en vez de estrella Maia), pero ahora se sabe que es una nube de polvo no relacionada en el medio interestelar, a través de la cual las estrellas están pasando actualmente. Simulaciones por ordenador han mostrado que las Pléyades se formaron probablemente a partir de una configuración compacta que se asemeja a la nebulosa de Orión. Se estima que el grupo va a sobrevivir durante otros 250 millones de años, tiempo después del cual se dispersará debido a las interacciones gravitacionales con su vecindario galáctico.
El cúmulo tiene unos doce años luz de diámetro y contiene un total aproximado de 500 a 1.000 estrellas. Está dominado por estrellas azules jóvenes, de las cuales ocho pueden ser observadas a simple vista dependiendo de las condiciones atmosféricas (cielos muy limpios y ausencia de Luna): Taygeta (4,29), Pleione (5,05), Merope (4,14), Maia (3,87), Electra (3,72), Celaeno (5,45), Atlas (3,62) y Alcyone (2,85) (las números entre paréntesis indican las magnitudes aparentes).
El cúmulo está compuesto en una buena parte por enanas marrones —objetos con menos del 8 % de la masa solar—, los cuales son demasiado livianos para ser estrellas. Puede que estos objetos constituyan aproximadamente el 25 % de la población total del cúmulo, a pesar de que solo contribuyan al 2 % su masa total. También presentes en el cúmulo, están las enanas blancas, las cuales contradicen la edad estimada del cúmulo. Debido a la corta edad del cúmulo, no se espera que las estrellas normales puedan haber evolucionado para convertirse en enanas blancas. Se cree que, en vez de ser estrellas individuales de poca o mediana masa, los progenitores de estas estrellas eran masivas y orbitaban en sistemas binarios. Durante su rápida evolución, la transferencia de masa de la estrella más masiva a su acompañante, pudo haber acelerado su evolución hacia una enana blanca.
Las Pléyades se encuentra a unos 440 años luz.

TMC Nube Molecular de Tauro. Toda la imagen está ocupada por esta débil nebulosidad. Una nube molecular es una gran zona de gases y polvo en el espacio formada esencialmente por hidrógeno molecular y helio. Es un lugar de nacimiento de estrellas. La TMC se encuentra a unos 500 años luz y es una de las nubes moleculares más cercanas.

IC 354. Es una nebulosa en Taurus, remanente de una supernova.

IC 353. Es una amplia nebulosa de reflexión (unos 3º de longitud aparente) situada al noreste del cúmulo de las Pléyades, descubierta por E.E. Barnard en 1894.

NGC 1435, nebulosa de Mérope, nebulosa de Tempel. nebulosa de Tempel, es una nebulosa de reflexión difusa en el cúmulo abierto de las Pléyades, en la constelación de Tauro. Fue descubierta en 1859 por el astrónomo Wilhelm Tempel.
De magnitud aparente 13, NGC 1435 está enteramente iluminada por la estrella Merope (23 Tauri), que se halla totalmente rodeada por ella. NGC 1435 aparece en las fotografías de color azul por el fino polvo de carbono difundido por toda la nube. Aunque inicialmente se pensó que las Pléyades habían formado ésta y otras nebulosas circundantes, ahora se sabe que las Pléyades simplemente están atravesando la nebulosidad. Dista unos 440 años luz.

NGC 1432, nebulosa de Maya. Es una nebulosa de reflexión que rodea a la estrella Maya, perteneciente al grupo estelar de las Pléyades. NGC 1432 fue descubierto por los astrónomos franceses Paul-Pierre Henry y Prosper-Mathieu Henry en 1885.
El tamaño real de la nebulosa Maya es de unos 3,4 años luz.

IC 341. Es una nebulosidad en Taurus, se cree que remanente de una supernova.

IC 336. Es una nebulosa de emisión en la constelación de Taurus. Fue descubierta por Edward Emerson Barnard en 1893.

Cometa C/2015 ER61 PanSTARRS. Es un cometa, un objeto proveniente de la nube de Oort interior, asteroide cercano a la Tierra tipo Amor, y posiblemente una damocloide. Cuando se clasificó como planeta menor, tenía el cuarto afelio más grande de cualquier planeta menor conocido en el Sistema Solar, después de 2005 VX3, 2012 DR30 y 2013 BL76. Además, tenía la órbita más excéntrica de cualquier planeta menor conocido, con su distancia del Sol que variaba aproximadamente 99.9% durante el curso de su órbita, seguido por 2005 VX3 con una excentricidad de 0.9973. El 30 de enero de 2016, se clasificó como un cometa cuando estaba a 5,7 UA del Sol.
Aunque el núcleo del cometa fue probablemente levemente activo, las estimaciones iniciales de asteroides dieron una magnitud absoluta (H) de 12.3, lo que sugeriría un núcleo de 8-20 km de diámetro. Pero podría ser fácilmente la mitad de ese tamaño debido a la actividad que ilumina el núcleo.

60 exposures of 90 seconds with telephoto lens 200 mm f / 1.8, ISO 1600, modified Canon EOS 6D camera. Center, (AR): 03h 45m 39.227s,
(Dec.): + 23 ° 48 ‘16.552 "Angular field: 10.8 ° x 7.1 ° Scale: 19.5 arcsec / pixel.

Pleiades, M45. It is an open star cluster containing hot stars of spectral type B, located in the constellation Taurus. It is among one of the star clusters closest to the Earth, and is the cluster best visible to the naked eye in the night sky. The Pleiades harbor a prominent place in ancient mythology, as well as a diversity of meanings in different cultures and traditions.
The cluster is dominated by extremely blue and luminous hot stars that have formed in the last 100 million years. The dust that forms a faint nebulosity of reflection around the brightest stars was thought in a principle that came from a disintegration of the own formation of the cluster (hence the alternative name for Mayan nebula instead of Mayan star), but now knows that it is a cloud of unrelated dust in the interstellar medium, through which stars are currently passing. Computer simulations have shown that the Pleiades were probably formed from a compact configuration resembling the Orion Nebula. It is estimated that the group will survive for another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.
The cluster is about twelve light-years in diameter and contains an approximate total of 500 to 1,000 stars. It is dominated by young blue stars, of which eight can be observed with the naked eye depending on atmospheric conditions (very clear skies and Moon absence): Taygeta (4,29), Pleione (5,05), Merope (4, 14), Maia (3.87), Electra (3.72), Celaeno (5.45), Atlas (3.62) and Alcyone (2.85) (numbers in parentheses indicate apparent magnitudes).
The cluster is largely composed of brown dwarfs – objects with less than 8% of the solar mass – which are too light to be stars. These objects may constitute approximately 25% of the total population of the cluster, although only 2% contribute their total mass. Also present in the cluster are the white dwarfs, which contradict the estimated age of the cluster. Due to the short age of the cluster, normal stars are not expected to have evolved to become white dwarfs. It is believed that, instead of being single stars of small or medium mass, the progenitors of these stars were massive and orbited in binary systems. During its rapid evolution, the transfer of mass from the most massive star to its companion, may have accelerated its evolution towards a white dwarf.
The Pleiades is about 440 light-years away.

TMC Taurus Molecular Cloud. The whole image is occupied by this weak cloudiness. A molecular cloud is a large area of gases and dust in space consisting essentially of molecular hydrogen and helium. It is a birthplace of stars. TMC is about 500 light-years away and is one of the closest molecular clouds.

IC 354. It is a nebula in Taurus, remnant of a supernova.

IC 353. It is a large reflection nebula (about 3 ° apparent length) located to the northeast of the Pleiades cluster, discovered by E.E. Barnard in 1894.

NGC 1435, Mérope nebula, Tempel nebula. Tempel nebula, is a fuzzy reflection nebula in the open cluster of the Pleiades, in the constellation Taurus. It was discovered in 1859 by the astronomer Wilhelm Tempel.
Of apparent magnitude 13, NGC 1435 is entirely illuminated by the star Merope (23 Tauri), which is completely surrounded by it. NGC 1435 appears in blue photographs because of the fine carbon dust spread throughout the cloud. Although it was initially thought that the Pleiades had formed this and other surrounding nebulae, it is now known that the Pleiades are simply passing through the cloud. It is about 440 light years away.

NGC 1432, Maya nebula. It is a nebula of reflection that surrounds to the Mayan star, pertaining to the stellar group of the Pleiades. NGC 1432 was discovered by French astronomers Paul-Pierre Henry and Prosper-Mathieu Henry in 1885.
The actual size of the Maya nebula is about 3.4 light years.

IC 341. It is a nebulosity in Taurus, believed to be remnant of a supernova.

IC 336. It is a nebula of emission in the constellation of Taurus. It was discovered by Edward Emerson Barnard in 1893.

Cometa C / 2015 ER61 PanSTARRS. It is a comet, an object coming from the inner Oort cloud, near Earth-like asteroid Love, and possibly a damocloid. When it was classified as minor planet, it had the fourth largest aphelion of any known smaller planet in the Solar System, after 2005 VX3, 2012 DR30 and 2013 BL76. In addition, it had the most eccentric orbit of any known smaller planet, with its distance from the Sun varying approximately 99.9% during the course of its orbit, followed by 2005 VX3 with an eccentricity of 0.9973. On January 30, 2016, it was classified as a comet when it was at 5.7 AU from the Sun.
Although the comet nucleus was probably slightly active, initial estimates of asteroids gave an absolute magnitude (H) of 12.3, suggesting a core 8-20 km in diameter. But it could easily be half that size due to the activity that illuminates the core.

Posted by StarryEarth on 2017-10-25 22:30:19

Tagged: , Pléyades , pleiades , Toto , Taurus , cúmulo , cluster , nebula , nebulosa , star , estrella , constellation , constelación , Barnard , Merope , Maya , Maia , Cloud , Molecular

Pleiades, 50mm, No Tracking, Finger Lakes region of New York

Pleiades, 50mm, No Tracking, Finger Lakes region of New York

Now that the Milky Way is settling down for the winter, I decided to move on to other subjects on this very clear night. My last few outings have been increasingly plagued by dew forming on my lens. Actually, my entire camera has been dripping wet most nights. So I went to Walmart yesterday and grabbed a few sets of hand-warmers and taped a pair around my lens. They fit perfectly! No need to wipe every 90 seconds. I shot for hours without any dew at all, while my car made puddles around its perimeter.

Because my nifty-fifty gets nasty real quick on any stars that aren’t near dead-center, I had to re-frame the Pleiades every 5 minutes or less. That makes a pretty big difference. I also shot nearly 600 dew-free frames of Andromeda last night. Here’s that:

www.flickr.com/photos/15304966@N06/36609692994/in/photost…

I used DeepSkyStacker to stack 238 images captured with my Canon 50mm f/1.8 set to f/2.2, 5-seconds, ISO 12800 on a Canon 60D body.

I stretched the output just a bit in Photoshop — only 1-1/2 Levels adjustments — any more brought all the noise back. I was pleased to get this much dust glow without having a background that looked like a rain-soaked end-of-semester sofa sitting at the curb. I tweaked the colors a bit to get some blue back, and then cropped and re-sampled the image 200 percent.

My computer, my drives and my long lens are conspiring to get a cheap tracker for me this Christmas. They’ve had just about enough of these shenanigans.

Posted by Douglas Gray on 2017-09-25 06:19:11

Tagged: , astrophotography , Pleiades , 50mm , astronomy , stars , dust , gas , cluster , hand , warmers , DeepSkyStacker , night

Pléyades y cometa Panstarrs

Pléyades y cometa Panstarrs

60 exposiciones de 90 segundos con teleobjetivo 200 mm f/1.8, ISO 1.600, cámara Canon EOS 6D modificada. Centro, (AR): 03h 45m 39.227s,
(Dec.): +23° 48′ 16.552". Campo angular: 10.8º x 7.1º. Escala: 19.5 arcsec/pixel.

Pléyades, M45. Es un cúmulo estelar abierto que contiene estrellas calientes de tipo espectral B, ubicadas en la constelación Tauro. Está entre uno de los cúmulos estelares más cercanos a la Tierra, y es el cúmulo mejor visible a simple vista en el cielo nocturno. Las Pléyades albergan un prominente lugar en la mitología antigua, así como una diversidad de significados en diferentes culturas y tradiciones.
El cúmulo está dominado por estrellas calientes extremadamente azules y luminosas que se han formado en los últimos 100 millones de años. El polvo que forma una débil nebulosidad de reflexión alrededor de las estrellas más brillantes se pensó en un principio que provenía de una disgregación de la propia formación del cúmulo (de ahí el nombre alternativo para nebulosa Maia en vez de estrella Maia), pero ahora se sabe que es una nube de polvo no relacionada en el medio interestelar, a través de la cual las estrellas están pasando actualmente. Simulaciones por ordenador han mostrado que las Pléyades se formaron probablemente a partir de una configuración compacta que se asemeja a la nebulosa de Orión. Se estima que el grupo va a sobrevivir durante otros 250 millones de años, tiempo después del cual se dispersará debido a las interacciones gravitacionales con su vecindario galáctico.
El cúmulo tiene unos doce años luz de diámetro y contiene un total aproximado de 500 a 1.000 estrellas. Está dominado por estrellas azules jóvenes, de las cuales ocho pueden ser observadas a simple vista dependiendo de las condiciones atmosféricas (cielos muy limpios y ausencia de Luna): Taygeta (4,29), Pleione (5,05), Merope (4,14), Maia (3,87), Electra (3,72), Celaeno (5,45), Atlas (3,62) y Alcyone (2,85) (las números entre paréntesis indican las magnitudes aparentes).
El cúmulo está compuesto en una buena parte por enanas marrones —objetos con menos del 8 % de la masa solar—, los cuales son demasiado livianos para ser estrellas. Puede que estos objetos constituyan aproximadamente el 25 % de la población total del cúmulo, a pesar de que solo contribuyan al 2 % su masa total. También presentes en el cúmulo, están las enanas blancas, las cuales contradicen la edad estimada del cúmulo. Debido a la corta edad del cúmulo, no se espera que las estrellas normales puedan haber evolucionado para convertirse en enanas blancas. Se cree que, en vez de ser estrellas individuales de poca o mediana masa, los progenitores de estas estrellas eran masivas y orbitaban en sistemas binarios. Durante su rápida evolución, la transferencia de masa de la estrella más masiva a su acompañante, pudo haber acelerado su evolución hacia una enana blanca.
Las Pléyades se encuentra a unos 440 años luz.

TMC Nube Molecular de Tauro. Toda la imagen está ocupada por esta débil nebulosidad. Una nube molecular es una gran zona de gases y polvo en el espacio formada esencialmente por hidrógeno molecular y helio. Es un lugar de nacimiento de estrellas. La TMC se encuentra a unos 500 años luz y es una de las nubes moleculares más cercanas.

IC 354. Es una nebulosa en Taurus, remanente de una supernova.

IC 353. Es una amplia nebulosa de reflexión (unos 3º de longitud aparente) situada al noreste del cúmulo de las Pléyades, descubierta por E.E. Barnard en 1894.

NGC 1435, nebulosa de Mérope, nebulosa de Tempel. nebulosa de Tempel, es una nebulosa de reflexión difusa en el cúmulo abierto de las Pléyades, en la constelación de Tauro. Fue descubierta en 1859 por el astrónomo Wilhelm Tempel.
De magnitud aparente 13, NGC 1435 está enteramente iluminada por la estrella Merope (23 Tauri), que se halla totalmente rodeada por ella. NGC 1435 aparece en las fotografías de color azul por el fino polvo de carbono difundido por toda la nube. Aunque inicialmente se pensó que las Pléyades habían formado ésta y otras nebulosas circundantes, ahora se sabe que las Pléyades simplemente están atravesando la nebulosidad. Dista unos 440 años luz.

NGC 1432, nebulosa de Maya. Es una nebulosa de reflexión que rodea a la estrella Maya, perteneciente al grupo estelar de las Pléyades. NGC 1432 fue descubierto por los astrónomos franceses Paul-Pierre Henry y Prosper-Mathieu Henry en 1885.
El tamaño real de la nebulosa Maya es de unos 3,4 años luz.

IC 341. Es una nebulosidad en Taurus, se cree que remanente de una supernova.

IC 336. Es una nebulosa de emisión en la constelación de Taurus. Fue descubierta por Edward Emerson Barnard en 1893.

Cometa C/2015 ER61 PanSTARRS. Es un cometa, un objeto proveniente de la nube de Oort interior, asteroide cercano a la Tierra tipo Amor, y posiblemente una damocloide. Cuando se clasificó como planeta menor, tenía el cuarto afelio más grande de cualquier planeta menor conocido en el Sistema Solar, después de 2005 VX3, 2012 DR30 y 2013 BL76. Además, tenía la órbita más excéntrica de cualquier planeta menor conocido, con su distancia del Sol que variaba aproximadamente 99.9% durante el curso de su órbita, seguido por 2005 VX3 con una excentricidad de 0.9973. El 30 de enero de 2016, se clasificó como un cometa cuando estaba a 5,7 UA del Sol.
Aunque el núcleo del cometa fue probablemente levemente activo, las estimaciones iniciales de asteroides dieron una magnitud absoluta (H) de 12.3, lo que sugeriría un núcleo de 8-20 km de diámetro. Pero podría ser fácilmente la mitad de ese tamaño debido a la actividad que ilumina el núcleo.

60 exposures of 90 seconds with telephoto lens 200 mm f / 1.8, ISO 1600, modified Canon EOS 6D camera. Center, (AR): 03h 45m 39.227s,
(Dec.): + 23 ° 48 ‘16.552 "Angular field: 10.8 ° x 7.1 ° Scale: 19.5 arcsec / pixel.

Pleiades, M45. It is an open star cluster containing hot stars of spectral type B, located in the constellation Taurus. It is among one of the star clusters closest to the Earth, and is the cluster best visible to the naked eye in the night sky. The Pleiades harbor a prominent place in ancient mythology, as well as a diversity of meanings in different cultures and traditions.
The cluster is dominated by extremely blue and luminous hot stars that have formed in the last 100 million years. The dust that forms a faint nebulosity of reflection around the brightest stars was thought in a principle that came from a disintegration of the own formation of the cluster (hence the alternative name for Mayan nebula instead of Mayan star), but now knows that it is a cloud of unrelated dust in the interstellar medium, through which stars are currently passing. Computer simulations have shown that the Pleiades were probably formed from a compact configuration resembling the Orion Nebula. It is estimated that the group will survive for another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.
The cluster is about twelve light-years in diameter and contains an approximate total of 500 to 1,000 stars. It is dominated by young blue stars, of which eight can be observed with the naked eye depending on atmospheric conditions (very clear skies and Moon absence): Taygeta (4,29), Pleione (5,05), Merope (4, 14), Maia (3.87), Electra (3.72), Celaeno (5.45), Atlas (3.62) and Alcyone (2.85) (numbers in parentheses indicate apparent magnitudes).
The cluster is largely composed of brown dwarfs – objects with less than 8% of the solar mass – which are too light to be stars. These objects may constitute approximately 25% of the total population of the cluster, although only 2% contribute their total mass. Also present in the cluster are the white dwarfs, which contradict the estimated age of the cluster. Due to the short age of the cluster, normal stars are not expected to have evolved to become white dwarfs. It is believed that, instead of being single stars of small or medium mass, the progenitors of these stars were massive and orbited in binary systems. During its rapid evolution, the transfer of mass from the most massive star to its companion, may have accelerated its evolution towards a white dwarf.
The Pleiades is about 440 light-years away.

TMC Taurus Molecular Cloud. The whole image is occupied by this weak cloudiness. A molecular cloud is a large area of gases and dust in space consisting essentially of molecular hydrogen and helium. It is a birthplace of stars. TMC is about 500 light-years away and is one of the closest molecular clouds.

IC 354. It is a nebula in Taurus, remnant of a supernova.

IC 353. It is a large reflection nebula (about 3 ° apparent length) located to the northeast of the Pleiades cluster, discovered by E.E. Barnard in 1894.

NGC 1435, Mérope nebula, Tempel nebula. Tempel nebula, is a fuzzy reflection nebula in the open cluster of the Pleiades, in the constellation Taurus. It was discovered in 1859 by the astronomer Wilhelm Tempel.
Of apparent magnitude 13, NGC 1435 is entirely illuminated by the star Merope (23 Tauri), which is completely surrounded by it. NGC 1435 appears in blue photographs because of the fine carbon dust spread throughout the cloud. Although it was initially thought that the Pleiades had formed this and other surrounding nebulae, it is now known that the Pleiades are simply passing through the cloud. It is about 440 light years away.

NGC 1432, Maya nebula. It is a nebula of reflection that surrounds to the Mayan star, pertaining to the stellar group of the Pleiades. NGC 1432 was discovered by French astronomers Paul-Pierre Henry and Prosper-Mathieu Henry in 1885.
The actual size of the Maya nebula is about 3.4 light years.

IC 341. It is a nebulosity in Taurus, believed to be remnant of a supernova.

IC 336. It is a nebula of emission in the constellation of Taurus. It was discovered by Edward Emerson Barnard in 1893.

Cometa C / 2015 ER61 PanSTARRS. It is a comet, an object coming from the inner Oort cloud, near Earth-like asteroid Love, and possibly a damocloid. When it was classified as minor planet, it had the fourth largest aphelion of any known smaller planet in the Solar System, after 2005 VX3, 2012 DR30 and 2013 BL76. In addition, it had the most eccentric orbit of any known smaller planet, with its distance from the Sun varying approximately 99.9% during the course of its orbit, followed by 2005 VX3 with an eccentricity of 0.9973. On January 30, 2016, it was classified as a comet when it was at 5.7 AU from the Sun.
Although the comet nucleus was probably slightly active, initial estimates of asteroids gave an absolute magnitude (H) of 12.3, suggesting a core 8-20 km in diameter. But it could easily be half that size due to the activity that illuminates the core.

Posted by StarryEarth on 2017-10-25 22:30:19

Tagged: , Pléyades , pleiades , Taurus , cúmulo , cluster , nebula , nebulosa , star , estrella , constellation , constelación , Barnard , Merope , Maya , Maia , Cloud , Molecular , Toro

Telescope on the grass Under the Stars Astronomy

Telescope on the grass Under the Stars Astronomy

Telescope on the grass Under the Stars background

Astronomy (from Greek: αστρονομία) is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution. Objects of interest include planets, moons, stars, galaxies, and comets; while the phenomena include supernova explosions, gamma ray bursts, and cosmic microwave background radiation. More generally, all astronomical phenomena that originate outside Earth’s atmosphere are within the purview of astronomy. A related but distinct subject, physical cosmology, is concerned with the study of the Universe as a whole.
Astronomy is the oldest of the natural sciences. The early civilizations in recorded history, such as the Babylonians, Greeks, Indians, Egyptians, Nubians, Iranians, Chinese, and Maya performed methodical observations of the night sky. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy and the making of calendars, but professional astronomy is now often considered to be synonymous with astrophysics.
During the 20th century, the field of professional astronomy split into observational and theoretical branches. Observational astronomy is focused on acquiring data from observations of astronomical objects, which is then analyzed using basic principles of physics. Theoretical astronomy is oriented toward the development of computer or analytical models to describe astronomical objects and phenomena. The two fields complement each other, with theoretical astronomy seeking to explain the observational results and observations being used to confirm theoretical results.
Astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and observation of transient phenomena. Amateur astronomers have made and contributed to many important astronomical discoveries, such as finding new comets.

Posted by scienceandtechnologysu on 2017-07-12 00:24:17

Tagged: , abstract , astrology , astronomy , atmosphere , background , black , blue , bright , clear , clouds , cluster , color , cosmos , deep , dusk , earth , explosion , fantasy , galaxy , graphic , idyllic , illustration , light , many , moon , nebula , night , open , orbit , outer , planet , pleiades , pure , science , shine , shiny , sky , solar , space , sparkle , star , starry , stars , grass , telescope , twinkle , universe , wallpaper , way , white , Thailand , Planets , Gases , Universal , dust , Dark , matter

Angel Keys

Angel Keys

By Angel

Posted by Angel Keys on 2011-03-11 23:06:03

Tagged: , blue , purple , magenta , nebula , star , space , night , astronomy , field , way , milky , bright , galaxy , fractal , backgrounds , sky , light , outer , glowing , dark , science , dust , infinity , awe , abstract , cluster , looking , forecasting , deep , glitter , rendering , black , computer , illustration , swirl , alien , ethereal , eternity , cosmos , astral , natural , fantasy , Angel , Keys , daslu , ótica , ventura

Blue space nebula

Blue space nebula

Blue space nebula as abstract background

Posted by thangcphan on 2012-06-08 08:21:07

Tagged: , blue , purple , magenta , nebula , star , space , night , astronomy , field , way , milky , bright , galaxy , fractal , backgrounds , sky , light , outer , glowing , dark , science , dust , infinity , awe , abstract , cluster , looking , forecasting , deep , glitter , rendering , black , computer , illustration , swirl , alien , ethereal , eternity , cosmos , astral , natural , fantasy

Blue space nebula

Blue space nebula

Blue space nebula as abstract background

Posted by thevampiredr on 2011-05-19 19:11:52

Tagged: , blue , purple , magenta , nebula , star , space , night , astronomy , field , way , milky , bright , galaxy , fractal , backgrounds , sky , light , outer , glowing , dark , science , dust , infinity , awe , abstract , cluster , looking , forecasting , deep , glitter , rendering , black , computer , illustration , swirl , alien , ethereal , eternity , cosmos , astral , natural , fantasy