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Last night was a clear night and i tried something new for me, the NGC281. I didn't know if my unmodded dslr was able to capture it, but it apparently was. So for now only +/- 60min of data (60x 60sec, iso800), but for sure i'll make a lot more next time. Not too happy with the result yet, but maybe you guys can help me solve the following:
What i couldn't solve last night was, how come the stars look slightly strechted and squared. I redid a polar alignment which didn't solve anything, i redid the balancing and that didn't solve anything either. I zoomed in fully on the Liveview and focussed, which looked ok.... before i was able to shoot anywhere from 60-90 sec subs, but now it looks like i can't reach more than 60sec anymore.... Any ideas? I am using an NEQ6Pro with BackyardNikon and EQMOD with Stellarium. And APP offcourse but that is afterwards 😉
Cheers,
Michel
Hi Michel,
Nice image again for only 60minutes of exposure, very colorfull 😉
Regarding the star shapes, I see what you mean, do you see this in single images or only after stacking? From your explanation I guess it's shown in the single images? If so, you probably need to have a look at collimation of your telescope. Its a 6"newton right?
Mabula
It is in the single frames as well.... i am using a Skywatcher Explorer 150PDS (so 150mm, don't know the inches).
Can you also tell me what i circled in the attached picture? It is in the partially uncropped version.... I couldn't find it in Stellarium either.
thanks,
Michel
Hi Michel,
Yes, the 150mm is 6 inches.
So I guess, the problem has to do with collimation of your scope then.
I can't directly say what's visible in the circle I am afraid, do you have any idea?
Maybe you can share it on facebook in the astroforum or on astroforum.nl? Maybe they have an idea?
Cheers,
Mabula
Hi Mabula,
I did collimate again, so now i have to wait till next pictures until i can check it.
i did ask on the Astroforum.nl and the answer for this object is: LDN1299. Aparently i needed to highlight more databases in stellarium to make this visible.
thanks for your response!
Excellent, coolio, it didn't look like an artefact, very nice then !
Mabula
