Pleiades (M45)

Pleiades (M45)

The Pleiades
In astronomy, the Pleiades, 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.

en.wikipedia.org/wiki/Pleiades

Taken in Ortigia, Sicily with 105mm lens at f2.8 – camera piggybacked on my telescope with the alt-az mount.

83 x 10 second exposures at 6400 ISO
59 x 15 second exposures at 6400 ISO
60 x dark frames
40 x flat frames
24 x bias/offset frames (subtracted from flat frames only)

Processed in Nebulosity, Maxim DL, and Photoshop.

Posted by Davide Simonetti on 2016-09-25 02:39:10

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

Mars with polar ice caps

Mars with polar ice caps

Mars with polar ice caps visible. Dark areas are dust storms while redish is planet surace. This is my first Mars shoot and the final images are a bit blurred as I was taking these as our sun was coming up (~6:30a). Better images to come.

Posted by eric_milbrandt on 2018-03-12 10:37:32

Tagged: , ~Astrophotography , computer wallpaper , Any Vision , darkness , phenomenon , atmosphere of earth , moonlight , sky , atmosphere , Labels , A , night , C , D , moon , M , O , N , daytime , S , Mars , astronomy , outer space , space , macro photography , U , universe , planet , P , midnight , astronomical object , celestial event , ~Solar System

Orion and the running man

Orion and the running man

After a few months waiting for it, I finally got to play with my new telescope and I revisited The Orion Nebula (M42). This time, I could include the Running Man Nebula as well (NGC 1977). Their light took roughly 1500 years to cross space and hit the sensor of my camera. I am very pleased as I could gather much more information this time. Considering that the moon was 97% illuminated yesterday night, I didn’t think I could be able to salvage these details. Looking forward to some clear and dark nights.
For those interested in the technical details, this is a stack of the best 50% of 78 light frames, stacked with 20 dark frames (used to reduce the heat noise from long exposures), 20 flat frames (to reduce vignetting and dust), as well as 20 bias frames (used to detect camera noise and dead pixels). The camera is an EOS 550d modified for astrophotography.
Taking the photos was the quick part (fortunately as it was just about to freeze last night). A couple of computer hours were necessary to bring all the details out.

Posted by Christian Gloor (mostly) underwater photographer on 2019-03-20 16:17:42

Tagged: , Orion , running , man , nebula , M42 , M43 , space , astrophotography , night , telescope , Celestron

M45 Pleiades

M45 Pleiades

The Pleiades also known as the Seven Sisters and Messier 45, 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. Reflection nebulae around the brightest stars were once thought to be left over material from the formation of the cluster, but are now considered likely 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.
(c) Wikipedia

NEQ6 mount, ED80 (520mm at 1/6.5), QHY8, 20 x 600s. Guilde – 50×9 finderscope with QHY5 camera. Total exposure – 3 hours.

Captured in MaxIm DL, processed in MaxIm DL, DSS, FitStacker and Pixinsight.

Posted by sergiy.vakulenko on 2019-01-17 10:33:47

Tagged: , Astronomy , Astrophotography , Astrophoto , Deepsky , DSO , Space , Sky , Stars , Cluster , M45 , Pleiades , ED80 , QHY8

Pleiades (Messier 45 or Seven Sisters)

Pleiades (Messier 45 or Seven Sisters)

Constellation: Taurus.
Session: 15 Nov 2018

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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: Takahashi FSQ-85EDX super apo (quadruplet 85/450).
• Mount: Skywatcher N-EQ6 Pro.
• Filters: Astronomik LRGB (36 mm).
• Accessories: QHYCCD QHYCFW-2-M motorized filter wheel.
• Camera: QHY163M mono.

L: 120x60s | binning 1×1 | Gain 120 | Offset 80 | cooled -20°c.

R: 10x60s | binning 1×1 | Gain 120 | Offset 80 | cooled -20°c.

G: 10x60s | binning 1×1 | Gain 120 | Offset 80 | cooled -20°c.

B: 10x60s | binning 1×1 | Gain 120 | Offset 80 | cooled -20°c.

Integration: 2,5 hours.
Correction: Darks, Flats, Bias

Notes: Mapped LRGB, maybe RGB filters not in focus as well, not polar alignment, moonlight.

Pixinsight, Adobe Photoshop.

© www.infinitalavita.comCristian Cestaro.

Posted by infinitalavita on 2018-11-15 22:00:00

Tagged: , takahashi , Astrofotografia , astrophotography , Cristian Cestaro , www.infinitalavita.com , infinita è la vita , infinite is life , messier 45 , m45 , seven sisters , sette sorelle , pleiadi

Mars | 2018-07-16 6:26 UTC | RGB

Mars | 2018-07-16 6:26 UTC | RGB

Seeing was not bad, but not as good as July 14th, and transparency was extremely variable due to clouds coming through. While processing the Mars images from this night, our hard drive started slowing down and eventually started giving I/O errors, usually a sign that a drive has failed. Fortunately, restarting my computer fixed all the problems but I decided to back up the remaining 1 terabyte of unprocessed data to another drive to be safe.

Notes:
Syrtis Major is rising.
Dust clouds appear to be escaping from Hellas Basin.
The south polar cap is mostly obscured by dust.

Telescope: Celestron C14 EdgeHD
Camera: ZWO ASI290MM
Barlow: Astro-Physics Advanced Convertible Barlow
Filters: Chroma Red, Chroma Green, Chroma Blue

Link: www.chappelastro.com/astrophotography/solar_system/mars/2…

Posted by Chappel Astro on 2018-10-23 02:52:36

Tagged: , Mars , Planet , Space , Astronomy , Astrophotography , Celestron , ZWO

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

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

Milky Way

Milky Way

The Milky Way is the galaxy that contains our Solar System. The Milky Way is a barred spiral galaxy some 100,000–120,000 light-years in diameter, which contains 100–400 billion stars. It may contain at least as many planets as well. The Solar System is located within the disk, about 27,000 light-years away from the Galactic Center, on the inner edge of one of the spiral-shaped concentrations of gas and dust called the Orion Arm. The stars in the inner ≈10,000 light-years form a bulge and one or more bars that radiate from the bulge. The very center is marked by an intense radio source named, Sagittarius A*, which is likely to be a supermassive black hole. Stars and gases at a wide range of distances from the Galactic center orbit at approximately 220 kilometers per second. The constant rotation speed contradicts the laws of Keplerian dynamics and suggests that much of the mass of the Milky Way does not emit or absorb electromagnetic radiation. This mass has been given the name “dark matter”. The rotational period is about 240 million years at the position of the Sun. The Galaxy as a whole is moving at a velocity of approximately 600 km per second with respect to extragalactic frames of reference. The oldest known star in the Galaxy is at least 13.6 billion years old and thus must have formed shortly after the Big Bang. Surrounded by several smaller satellite galaxies, the Milky Way is part of the Local Group of galaxies, which forms a subcomponent of the Virgo Supercluster.

Posted by pcbackup154 on 2014-06-17 16:27:25

Tagged: , abstract , airglow , argentina , astrophotography , canon , computer , deepsky , dream , galaxy , high , landscape , light , map , meade , mendoza , milkyway , music , nature , night , nightglow , nightphotography , nikon , photoshop , planet , process , stacker , stars , sun , time , way