January 28, 2023

M38 and NGC 1907 (Jan. 2023)

 


This is 19x600" with the Atik 460EXC and LPS-P2 through the SW ED80.  Which is better, the more stretched shot or the less stretched one?  The less stretched one is closer to what the area looks like through a large telescope.  The more stretched one shows stars as deep as 17th magnitude.

December 21, 2022

IC 410 (Dec. 21. 2022, reprocess of Nov. 2020)

This image is 63x15" (15.75 hours) with the 203mm f/4.95 Synta-ONTC Newtonian, an Astronomik CLS filter, and Atik 460 EXC camera.  The prior version appears here: https://polarisb.blogspot.com/2020/12/ngc-1893-and-sim-129-130-nov-2020.html.

December 10, 2022

M20, early 2022 (re-process of May 8, 2022)


This image is constructed from data gathered by Insight Observatory's remote telescope AFIL-2, a Skyrover 130 APO located at Yunling Observatory, China.  Data for this image includes 3.75 hours of exposures: 1.5 hours (18x300") through a red filter and roughly equal exposures taken through green and blue filters.

December 8, 2022

Mars & Luna Video (Dec. 8, 2022, around 3 a.m. UT)

I posted a video of what the conjunction looked like through my wonderful 6" f/8 Newtonian, just before closest approach.  This little video link stays very small, though.  To reach the actual posted video, click here: https://youtu.be/EoYgxrQj_YI.  That will take you to the actual video posted on Youtube, which is much more like what I saw in the eyepiece.

Mars & Luna (Dec. 8, 2022, around 3 a.m. UT)

 

These are best 50% of a couple of 300-frame SER videos made with the QHY 5iii485c camera through my wonderful 6" f/8 Newtonian with Spooner-finished mirror.  The light from Mars took 4.57 minutes to go from Mars to Earth and the light from the Moon took 1.32 seconds. Moon, 395300 km; Mars, 82.2 million km.  So by the time I took this picture, Mars had moved.

Below is a single frame, perhaps the best of the night.



November 9, 2022

October 29, 2022

Bubble Nebula and M59 (Oct. 2022)

 


This is 26x1200" with the Atik 460EXC through a SW 80ED at f/6.375, with the SW 80ED reducer/flattener.  I have always been impressed with the optics on this scope.  On this image, I had to balance the stars over the nebula against the stars in the cluster.  I wanted to show the cluster well but not overwhelm the nebula.