NGC7000 3x3 mosaic

Just a preview...
More to come later...

Protostar Jet @ NGC-2244 / Rosette Nebula

Besides taking pretty pictures, I am always excited about the science behind that.

After reading the "Jet Steam" in the Sky-and-Telescope magazine, I want to see if my previous image catch that. I went through the NGC-2244 Ha image (30min, single exposure) I took last year and can see the protostar jet there !!

From the magazine

48-Hour NGC-1499 - Ha Only

Have been a long time since the last post.
Here is the final image of this large target. Pretty happy with the result !!

https://www.astrobin.com/325875

2017 Nov - First Mosaic - NGC1499

First time try mosaic.
Not process it yet ...

6 panel, each has 6 * 30min Ha sub frames

10/27/2017 UGC 2885 / PGC 213253 - How Deep from Fremont Sky ?

Always curious about how deep I can image at the very light polluted Fremont sky...

Last night, after taking several hours of Ha data on NGC1499 (California Nebula), I point my scope to a random patch near NGC1499 and take a 600sec image with L filter. Originally I was trying to see the faintest star but found an interesting galaxy in the picture.

After plate-solving and cross referencing with SkySafari, I think that galaxy is UGC 2885. I also found a discussion at CloudyNight.

UGC 2885 is 331M light years away from us but it is not the faintest galaxy in the picture. There is a tiny PGC 213253.

 SkySafari said it is a 17.1m galaxy... I am surprised this kind of object can be easily detected in a single frame image (without stacking or processing)...

10/14/2017 Henry Coe Visual

Observer for about 2.5hr... Very windy and cold...
Here is the short report I wrote: http://observers.org/index.php/topic,869.0.html 

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 !