The Pleiades (M45)

The Pleiades (M45)

The Pleiades (also known as the Seven Sisters and Messier 45). This is one of my favourite autumn targets and one I feel compelled to image every year in order to try and improve on previous attempts. Their rising heralds the arrival of the constellation of Orion which pursues them. I love the mythology associated with the Pleiades and Orion and different cultures have their own stories to explain them. M45 always seems like it should be a fairly easy object to image and it is, however processing it is another matter. This image was made over two nights (24/09/18 and 03/10/18). The original idea was to capture all the data in one night but the first night, although being very clear, was a full Moon and many of the subs were washed out making processing a nightmare. The second night the Moon wasn’t an issue but conditions were still less than ideal and we were shooting into a murky sky with high cloud. Ultimately I combined the best shots from both nights and this is the result…by no means perfect but as good as I can get it, not too noisy and a reasonable amount of nebulosity coming through.

The Pleiades are an open star cluster containing middle-aged, hot B-type 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 luminous stars that have formed within the last 100 million years. A faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now likely an unrelated foreground dust cloud in the interstellar medium, through which the stars are currently passing.

Computer simulations have shown that the Pleiades were 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.

Information courtesy of Wikipedia:
en.wikipedia.org/wiki/Pleiades
en.wikipedia.org/wiki/Pleiades_(Greek_mythology)

060 x 300 second exposures at Unity Gain (139) cooled to -20°C
030 x dark frames
063 x flat frames
100 x bias/offset frames
Binning 1×1

Total integration time = 5 hours

Captured with APT
Guided with PHD2
Polar Alignment with SharpCap Pro
Processed in Nebulosity, Fitsworks, Microsoft ICE and Photoshop

Equipment
Telescope: Sky-Watcher Explorer-150PDS
Mount: Skywatcher EQ5
Guide Scope: Orion 50mm Mini
Guiding Camera: ZWO ASI120MC
Imaging Camera: ZWO ASI1600MC Pro
Baader Mark-III MPCC Coma Corrector
Light pollution filter

Posted by Davide Simonetti on 2018-10-07 11:51:56

Tagged: , Pleiades , Seven Sisters , Messier 45 , Star Clusters , Stars , M45 , Maia , Electra , Taygete , Alcyone , Celaeno , Sterope , Merope , Pleione , Atlas , Astrophotography , Astronomy , Space

Pleiades M45 (HaLRGB)

Pleiades M45 (HaLRGB)

Constellation: Taurus.
Session: 06 Dec 2016.

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In astronomy, the Pleiades (/ˈplaɪədiːz/ or /ˈpliːədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged, hot B-type 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 celestial entity has several meanings in different cultures and traditions.

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 (hence the alternative name Maia Nebula after the star Maia), but 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.

Source: Wikipedia
—————————————————————————————————

• Optics: Primalucelab 80/500 APO (doublet).
• Mount: Skywatcher N-EQ6 Pro.
• Filters:Astronomik Ha (12nm), LRGB (31.8 mm).
• Accessories: Filter wheel (1.25"), Primalucelab focal reducer (0.8x)
• Camera: Atik 414 ex mono.

Ha (12nm) : 9x300s | binning 1×1 | cooled -4°c.
Ha (12nm) : 3x600s | binning 1×1 | cooled -4°c.

L: 10x300s | binning 1×1 | cooled -4°c.

R: 5x120s | binning 1×1 | cooled -4°c.
G: 5x120s | binning 1×1 | cooled -4°c.
B: 5x120s | binning 1×1 | cooled -4°c.

Integration: 2 hour and 41 mins.
Correction: Darks, Flats, Bias

Notes: HaLRGB mode, fog, waxing crescent moon light.

DeepSkyStacker, Adobe Photoshop CS6.

© www.infinitalavita.com • Cristian Cestaro

Posted by infinitalavita on 2016-12-08 16:01:37

Tagged: , Cristian Cestaro , www.infinitalavita.com , pleiades , pleiadi , m45 , messier 45 , halrgb , open cluster , ammasso aperto , Astrometrydotnet:id=nova1854733 , Astrometrydotnet:status=solved

Pleiades (Messier 45)

Pleiades (Messier 45)

Constellation: Taurus.
Session: 17 Jan 2018

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Instagram | www.infinitalavita.com

Some on sale on microstocks here:
Shutterstock | Fotolia.

In astronomy, the Pleiades (/ˈplaɪədiːz/ or /ˈpliːədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged, hot B-type 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 celestial entity has several meanings in different cultures and traditions.

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 (hence the alternative name Maia Nebula after the star Maia), but 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.

Source: Wikipedia
—————————————————————————————————

• Optics: Primalucelab 80/500 APO (doublet).
• Mount: Skywatcher N-EQ6 Pro.
• Filters: Astronomik luminance, IDAS LPS D1.
• Accessories: QHYCCD QHYCFW-2-M motorized filter wheel, Primalucelab focal reducer (0.8x)
• Camera: QHY163M mono.

L (IDAS LPS D1): 12x300s | binning 1×1 | Gain 60 | Offset 15 |
cooled – 20°c.

Integration: 1 hour.
Correction: Darks, Flats, Bias

Notes: Only luminance, used medium dither.

Pixinsight.

© www.infinitalavita.com • Cristian Cestaro

Posted by infinitalavita on 2018-01-17 22:00:00

Tagged: , pleiades , pleiadi , m45 , messier 45 , qhy163m , qhy , www.infinitalavita.com , Cristian Cestaro , infinita è la vita , infinite is life , Astrofotografia , astrophotography , astrophotographer , astrofotografo

Pleaiades (Seven Sisters – M45)

Pleaiades (Seven Sisters - M45)

Constellation: Taurus.
Session: 29 Nov 2016.

In astronomy, the Pleiades (/ˈplaɪədiːz/ or /ˈpliːədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged, hot B-type 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 celestial entity has several meanings in different cultures and traditions.

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 (hence the alternative name Maia Nebula after the star Maia), but 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.

Source: en.wikipedia.org/wiki/Pleiades
—————————————————————————————————

SETUP:

Primaluce Lab Airy, APO ED doublet, 80/500 (f6.5) | Newton – EQ6 Pro | Refractor 80/400mm (f/5) | CCD (Orion StarShoot AutoGuider) | Primaluce Lab: focal reducer 0.85x .

DATA:

Canon EOS 550D (not modded). 40 min of integration.

Lights: 60x30s | ISO 800.
Lights: 2x300s | ISO 400.

Darks | Flats | Dark Flats | Bias: 21 | 59 | 57 | 57.

Notes: little crop.

DeepSkyStacker | Adobe Photoshop CS6.

Some on sale here:
Shutterstock | Fotolia | Istockphoto | Redbubble | Society6.

Credits: Cristian Cestaro.

Twitter | Google+ | Facebook | Instagram | www.infinitalavita.com

Posted by infinitalavita on 2016-11-30 20:36:28

Tagged: , m45 , Cristian Cestaro , www.infinitalavita.com , pleiades , pleaidi , messier , messier 45 , sette sorelle , Astrometrydotnet:id=nova1846039 , Astrometrydotnet:status=solved

Pleiades

Pleiades

The Pleiades (M45). This is a shot I’ve been wanting to do for a long time. Previous attempts were unsatisfactory because my 127 Mak has too much focal length for this object and looked straight through it and using a camera lens made unattractive spokes around the stars caused by the iris of the lens. With the 150mm Newtonian scope the framing is pretty much perfect and plenty of nebulosity can be captured. Also the spikes caused by the secondary mirror spider add to the image. Not perfect perhaps but definitely the best attempt so far. This image has been edited sine originally being posted with extra data added and flat files replaced.

[Wikipedia] In astronomy, the Pleiades, or Seven Sisters (Messier 45 or M45), are an open star cluster containing middle-aged, hot B-type 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 (hence the alternative name Maia Nebula after the star Maia), but 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 were 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.[en.wikipedia.org/wiki/Pleiades]

68 x 75 second exposures at 400 ISO (one hour and 15 minutes integration time).
68 x dark frames
24 x flat frames
21 x bias/offset frames (subtracted from flat frames only)

Captured with APT
Guided with PHD2
Processed in Nebulosity and Photoshop

Equipment:
Sky-Watcher Explorer-150PDS
Skywatcher EQ5 Mount
Orion 50mm Mini Guide Scope
ZWO ASI120 MC imaging and guiding camera
Canon 700D DSLR

Posted by Davide Simonetti on 2017-09-17 20:28:52

Tagged: , Pleiades , Messier 45 , M45 , Seven Sisters , Stars , Space , Astronomy , Astrophotography

The Pleiades

The Pleiades

In astronomy, the Pleiades (/ˈplaɪ.ədiːz/ or /ˈpliː.ədiːz/), or Seven Sisters (Messier 45 or M45), is an open star cluster containing middle-aged hot B-type 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 celestial entity has several meanings in different cultures and traditions.

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 (hence the alternative name Maia Nebula after the star Maia), but 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.[7] 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.[8]

EX INFO: 10 light frames taken at ISO 1600 for 150 seconds | 10 light frames taken at ISO 1600 for 120s coupled with respective dark frames of 3 in no. for each light frame set.

Posted by Rural Laul on 2016-01-18 01:42:36

Tagged: , constellation , pleiades , stars , astronomy , astrophotography , messier 45 , celestron , canon

The Pleiades (M45)

The Pleiades (M45)

The Pleiades, or Seven Sisters (Messier 45 or M45), is an open star cluster approximately 444 light years away from Earth containing middle-aged hot B-type 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 (hence the alternative name Maia Nebula after the star Maia), but 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.

The name of the Pleiades comes from Ancient Greek. It probably derives from plein because of the cluster’s importance in delimiting the sailing season in the Mediterranean Sea: ‘the season of navigation began with their heliacal rising’. However, the name was later mythologised as the name of seven divine sisters, whose name was imagined to derive from that of their mother Pleione, effectively meaning ‘daughters of Pleione’. However, in reality the name of the star-cluster almost certainly came first, and Pleione was invented to explain it. [Wikipedia]

8 x 2 minute exposures at 800 ISO
11 x dark frames
11 x flat frames
24 x bias/offset frames

Equipment
Celestron NexStar 127 SLT
GoTo AltAz mount with homemade wedge
Orion 50mm Mini Guide Scope
ZWO ASI120 MC imagaing and guiding camera
Canon 700D DSLR (piggybacked on scope)
Tamron 70-30mm lens at 300mm

Guided with PHD
Stacked and calibrated in Maxim DL
Post processed in Maxim DL, Nebulosity, and Photoshop

Posted by Davide Simonetti on 2015-08-22 09:23:34

Tagged: , Pleiades , Seven Sisters , Messier 45 , M45 , Star Clusters , Stars , Astrophotography , Astronomy

Pleiades – M 45

Pleiades - M 45

Las Pléyades (que significa «palomas» en griego), también conocidas como Objeto Messier 45, Messier 45, M45, Las Siete Hermanas o Cabrillas, Los Siete Cabritos, es un objeto visible a simple vista en el cielo nocturno con un prominente lugar en la mitología antigua, situado a un costado de la constelación Tauro. Las Pléyades son un grupo de estrellas muy jóvenes las cuales se sitúan a una distancia aproximada de 450 años luz de la Tierra y están contenidas en un espacio de treinta años luz. Se formaron hace apenas unos 100 millones de años aproximadamente, durante la era Mesozoica en la Tierra, a partir del colapso de una nube de gas interestelar. Las estrellas más grandes y brillantes del cúmulo son de color blanco-azulado y cerca de cinco veces más grandes que el Sol.

es.wikipedia.org/wiki/Pl%C3%A9yades_%28astronom%C3%ADa%29

In astronomy, the Pleiades (/ˈplaɪ.ədiːz/ or /ˈpliː.ədiːz/), or Seven Sisters (Messier object 45 or M45), is an open star cluster containing middle-aged hot B-type 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 celestial entity has several meanings in different cultures and traditions.

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 (hence the alternate name Maia Nebula after the star Maia), but 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.[7] 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.[8]

en.wikipedia.org/wiki/Pleiades

Posted by Sebapol on 2013-12-02 02:58:08

Tagged: , pléyades , pleyades , pleiades , M45 , messier 45 , cabritos , hermanas , cabrillas , mitología , griega , taurus , estrella , star , espacio , space , galaxia , galactic , Astrotrac

Pleiades M45

Pleiades M45

In astronomy, the Pleiades (/ˈplaɪ.ədiːz/ or /ˈpliː.ədiːz/), or Seven Sisters (Messier object 45 or M45), is an open star cluster containing middle-aged hot B-type 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 name Pleiades comes from the Book of Job, Chapter 9:6; the celestial entity has several meanings in different cultures and traditions.
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 (hence the alternate name Maia Nebula after the star Maia), but 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.[7] 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.
en.wikipedia.org/wiki/Pleiades

Posted by Pixel Universe Photography on 2013-10-11 10:19:05

Tagged: , Astrometrydotnet:id=supernova10257 , Astrometrydotnet:status=solved , m45 , messier , messier 45 , pleiades , stars , blue , nebula , night , astrophotography , astro , astronomy , sky , taurus , space , cluster , universe , Seven , sisters , ciel , espace , star