Finally got my auto-guider working today and here is the result. 40 minutes of tracked beauty. Though it does seem a bit fuzzy to me, perhaps I need more data?
#M13 - Hercules Globular Cluster
elfin junco
elfin junco
It probably didn't really track the beauty u said
Compared to my last glob^ which was not guided, its a significant improvement. I think I might play with the settings in my camera a bit more.
drifting ginkgo
Yepppp, it's a good achievement then
You use a guidescope too?
If soo try to use multi star tracking
elfin junco
If soo try to use multi star tracking
Im pretty sure PHD2 comes with multi-star tracking enabled automatically but Ill double check that next imaging session. I think my issue with the picture is poor calibration frames, I took only 10 darks and a couple bias frames but no flats.
drifting ginkgo
It's tracking
U wanna see a poor calibration frames image?
That's it
As u see, stars arent as traily as yours so it's def not calibration issue
Whatchu use as rig btw
I can try give u some tips If i know hehe
elfin junco
the rig I used to make that image is my Orion Spaceprobe 130st OTA, the OTA is f/5, the mount is some kind of skywatcher mount. I think its something like Skywatcher HE5. Camera was a ZWO ASI 662 MC, guide scope and guide cam are the ioptron iguider system. 120mm focal length. The picture was made while the object was high in the sky, average seeing, pc connected to my mount controlling it that way.
elfin junco
As u see, stars arent as traily as yours so it's def not calibration issue
I dont know what you mean as traily because my stars are literally dots bro LMAO
I know I was perfect focus because I used a focusing mask
drifting ginkgo
I dont know what you mean as traily because my stars are literally dots bro LMAO
Alr lemme explain
Look at your cluster
Can you distinguish the shape of every star?
elfin junco
Alr lemme explain
Reprocessed it, its a little bit better, I also identified that I was shooting with the wrong gain setting for my camera. I also did not have a dew heater running, so slight accumulation was likely occuring.
drifting ginkgo
Hah happens
It's a bit noisier but tbh at first sight seems sharper
Yeah tho once it happened to me too, i did all good until i decided to shoot flats at 1000 iso instead of 800 lol
elfin junco
For reference, I was shooting with a gain of 0, like a ding dong.
elfin junco
It's a bit noisier but tbh at first sight seems sharper
It also looks like there might be slight coma on the edges of the image.
drifting ginkgo
I told u it was coma