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By Astro Dave
I recently decided to give the SynScan app a try on my new Orion XT10g.
Now using the hand controller I was familiar with the "Brightest Star" and "Two-Star" alignments methods, indeed I always use the Two-Star method.
With the app however I see that the Two-Star has been replaced with the level north two star. What is that? And since there's no manual for the app, what precisely does level north mean? I'm guessing that you level the OTA and point north but with what precision? Any idea why that replaces the Two-Star method from the hand controller?
OK, so fine. I did the Level North alignment. I noticed that as it goes to each of the two stars and stops, while waiting for you to center the star, a couple of the directional buttons are flashing. What's interesting is that the ones flashing are not the ones for the direction that the scope needs to move to center the star. Again, what's up with this?
Finally, after aligning and doing a Goto (reasonably accurate), once it arrives at the target again, one of the directional buttons is flashing and there's a message above the object name that says that I'm to center it. Huh?
Can someone help me make sense of all this. And, is there a manual for this app ??
Hi all, as a complete beginner, who is gradually getting some kit together, the question of which Polar Alignment App I should get for my Android phone is exercising my mind. Looking at the android play store there seems to be a myriad to choose from, which do members recommend & why?
Very pleased with my first ever attempt at imaging M31. Photo taken with my Orion ED80 Refractor, and Canon 450D DSLR at ISO 1600.
Only scraping the surface "exposure wise", I know, with 48 Lights (composed of mainly 60 sec subs, with some 30 sec subs thrown in as well).
7 Darks, 20 Flats ,20 Bias
Image processed from start to finish with Astro Pixel Processor (APP), of which I have just started a 30 day free trial.
I am VERY impressed with APP, after experiencing lots of frustration with DSS and GIMP.
Excited of what may be possible , when I begin to expose for longer periods of time., which I intend to do as a gain more experience.
Regards to all
So then, just as i thought the DSO season was well and truly over for me until late August/early September, as it turned out last Saturday night (May 5th) was mostly clear, so i set about trying to finish the NAN image i had captured in Ha a while back (see thread below):
So all i needed was some OIII. It's obviously not the ideal time of year to capture this i know, as it's so low on the horizon, but beggar's can't be choosers so i tried my best to make the most of the small amount of astro dark time available and just make the best of it.
In the end i managed 9 subs, two of which were sub-standard due to passing clouds, but as is my want these days i still asked APP to stack them (using the Quality setting) and it didn't seem to affect things. So in total this is:
Ha: 7 x 480s, 6 x 1200, 13 x 1200 (a little over 7 Hrs)
OIII: 9 x 1200s (3 Hrs)
RGB (with IDAS-D1 filter): 20 x 60s
The usual Flats & Bias, stacked in APP and processed in PS.
Gear used: Nikon D5300 (modded); SW 80ED (510mm FL); HEQ5-Pro; SGPro and PHD2.
The RGB subs were used solely for the stars. I still need to get better at merging them with the NB channels, i'm not as good as i'd like to be at controlling them. Although in this instance, i did mask the stretching of them, and it definitely helped, but i need to practice this to get better at it. I think the fact that the RGB stack (even at just 20 mins) contained some nebulosity didn't help things. When it's just stars and nothing else, it's so much simpler to combine them.
So this is just a Version 1 for now (i'll try an sSHO next). I used Ha for Red, OIII for Blue, and used one of Carboni's Actions to synthesize the Green channel. Then went round and round in circles trying to find a colour balance to my liking (on my rubbish monitor!) so i'd love to hear what you guys think. Too dark? Too much saturation? (i tend to do that, lol). I also couldn't decide on orientation, so have included two different ones. Which do you guys prefer?
All C&C welcome. Don't hold back! I'm always looking for ways to improve.
Hello fellow astronomers!
I'm an amateur astrophotographer and a student and I made a Polar Alignment app for Android for German equatorial mounts. I kept the UI very simple and easy to use. If you would like to share some feedback, that would be very helpful.
Cheers and clear skies!