Showing posts with label Messier Objects. Show all posts
Showing posts with label Messier Objects. Show all posts

Tuesday, November 17, 2015

M45 The Pleiades Cluster

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. 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.
Equipment Details 
Camera: Canon EOS T3i/600D (Un-Modified) 
Lens: Canon EF 75-300mm set at 150mm F5.0
Exposure: 2 Minutes (120 Seconds) Each 
ISO: 3200
Number of Stacked Images: 79 
Number of Dark Frames: 20
Number of Bias Frames: 20
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 11/11/2015 11:33:11 PM
Image is from Tom Pickett

M101 The Pinwheel Galaxy

This beautiful image is captured by my friend Tom Pickett.
"Hi Everyone.. I hope you are having a good day... 
smile emoticon

Here is a old image of M101, The Pinwheel Galaxy, I shot back in 3/24/2015, this one is without the star spikes and I have cropped it a little so it looks larger in the frame, I hope you like it.. smile emoticon 
I plan to revisit this target as soon as it up in the shy.. to add more data. I started learning my camera at this time and now I have a few better techniques of capturing this image so im going to try it.
Have a good day and clear skies.

Details
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away in the constellation Ursa Major, first discovered by Pierre Méchain on March 27, 1781, and communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.

Equipment Details
Camera: Canon EOS T3i/600D (Un-Modified)
Lens: Canon 75-300mm set at 300mm F5.6
Exposure: 3 Minutes each
ISO: 1600
Number of Stacked Images: 28
Number of Dark Frames: 28
Number of Bias Frames: 28
Mount: Celestron CG4 with Clock Drive
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CS6, Camera Raw
Shooting Date/Time 3/24/2015 12:32:23 AM"