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.
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
Posted by Chappel Astro on 2018-10-23 02:52:36
Tagged: , Mars , Planet , Space , Astronomy , Astrophotography , Celestron , ZWO
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.
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