Showing posts with label M100. Show all posts
Showing posts with label M100. Show all posts

Sunday, 2 April 2023

A galaxy and an asteroid.

I don't think I have attempted to capture Ceres before but here we have it by chance as I put the new scope through it's paces on galaxy season. I was going to continue with my M95 project previously posted when I scrolled around Stellarium to see Ceres placed in the frame with M100. After a few lunar captures earlier I set an autorun for a few hours of data. Having a few calibration frame issues with the Flats not working properly, had a similar issue last year but a new set of flats with a higher ADU value solved the problem.

So here we have a massive crop of the original frame to show the beautiful M100 in all it's spiral glory. 





A few details on Ceres.

The largest of the catalogued asteroids at just under a 1000km in diameter, Ceres roams the solar system at an average distance of 400 million Km's. Ceres was discovered in 1801 after the prediction of another body between Mars & Jupiter.

Tuesday, 2 April 2013

M99, M100

Saturday night was a moonless clear night and at that point I was unaware of a new supernova in the galaxy M65. My scope was trained a few degrees away into Coma and caught a wide field image of M99(below) & M100(right) Both on average 55 Million light years away. I was testing the setup on 5 minute subs. Unfortunatly I have no stock of 300 second dark frames so the final wide field wasn't upto my usual standards. So rather than waste it I have cropped them and here they are. Please note M100 was very close to the edge of the frame. Stars are not perfect.

Comet Tsuchinshan-ATLAS, C/2023 A3 , Comet A3,

  A cosmic wanderer, Comet Tsuchinshan-Atlas or more commonly known as Comet A3 has traced its elliptical path through the solar system, a j...