Final Process - NGC7000 3x3 Mosaic (Ha Only)

This is the largest mosaic I ever done - the size of the final image is 8489 × 6123.

NGC7000 is a large target and took me 15 nights (48hr) to collect enough data from my Fremont backyard. Required 3x3 mosaic to cover this...

Detail and large image at https://www.astrobin.com/364311

Single 30min O3 (@ 2017 CalStar Star Party) sub for Squid Nebula

I can barely see a shape here...

Very tough target. I will target on this next year !

Bubble Nebula & M52 - Image at 2017 CalStar Star Party

Finally a quick process of the image we took (Adrian and me).

This is the final HaRGB

Detail:  http://www.astrobin.com/315327/

30min x 14 Ha

10min x 12 RGB

2017 New Year Project -- "Portable Observatory"

Want to do something like this for a long long time. Having two young kids really limits my go-out-to-do-imaging time. People said having a semi-permanent setup is the next best thing to an observatory. So I pull the trigger... !!

I really should do this earlier !!!

Take me 5 min to setup and 5 min to tear down.

Although I have very limited sky in my backyard, I think I am going get a lot of subs this year.

365 cover ...

Very limited sky ...

First light -- Thor's Helmet Nebula - Ha 30min x 3 and the target is blocked by the tree...

 Second light -- Rosette Nebula -- Ha 30min x 7 ...

First Narrow Band CCD Experience

Acquired my CCD (SBIG STT-8300) used for a long time but didn't get chance to use it.
This is actually a new unit from AstroMart.

Setup at the evening after watching StarWar with wife...

The OAG of STT-8300 is really stupid. It shares the same USB port with the main CCD so there are a lot of problems. I hate those workaround. Some problems shows here:

I only get one 30min Ha sub and it is getting really cold (0-C).
I decided to back inside and do some adjustment on the gears.

Here is the quick process of the single-frame with 30 dark subs...
I think I like NB !! ;-)