Here is a zoom-in on the M31 image with a little more processing added.
Managed to get out imaging with the 200mm lenses until 1 a.m. even with an intrusive Moon. Decided I would go for M31 to get the whole thing in the frame. Managed 4-hours of 20-minute subs in the end and this is the result.
I found some Hyperstar 4/M31 data from 2021-10-11 comprising 33 x 3-minute subs – so I added this to the 52 x 3-minute subs taken on 22-08-25 to get the result above. So now a total of 85 x 3-minute subs (getting close to the magic 100 
) and that’s probably the best I am going to get from this rig without going to slightly longer subs. Hyperstar 4 on a C11 on an alt-az mount on a wedge with an ASI 2600MC Pro CMOS camera.
I made a composite image out of 2 lots of data of the Markarian Chain region taken using the Hyperstar 4 on a C11 with an ASI 2600MC Pro CMOS camera. This composite gives a total imaging time of 4.7 hours on the Hyperstar 4 rig. When I zoomed into the image to check there weren’t any nasties lurking in the background – I came across what I thought was a lens flare. Look in the 2 o’clock position from “The Eyes” in the zoomed in image. Glad I didn’t clone out the flare as it is actually IC3355. In all the images I’ve taken of this region I have never noticed that one before.
How many galaxies here? This is a 2-frame mosaic of the whole Virgo/Coma galaxy cluster region taken using the Canon 200mm prime lenses and the Trius M26C OSC CCDs. Each frame is approximately 4-hours of 15-minute subs
The central bright star is Sulafat – move to the right hand edge at the 2 o’clock position from Sulufat and that is Sheliak – these are the two bottom stars in central Lyra. Move 3/4 of the way from Sulufat towards Sheliak and that is M57 – the Ring Nebula. This is a composite single framer using the Canon 200mm prime lenses and the Trius M26C OSC CCDs. A total of 6-hours and 20-minutes using 10-minute sub-exposures.
Here is another 2-frame mosaic from the Canon 200mm prime lenses and the Trius M26C OSC CCDs. It is centred on the Crescent nebula in Cygnus. And it needs more data!
I found some more old 200mm data of this region from 2015-08-08 which had 8 x 30-minute subs. I added this to the previous 10.42-hour
I dug out some very old (but very nice) data from a LONG time ago. This is an image of the Cygnus Wall taken with the original Hyperstar (no collimation or camera rotation adjusters) and a tiny little H9C OSC CCD. The field of view was so small that this is a 2-frame mosaic! Each frame approximately 1-hour of 2-minute subs.
