Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  4 Cas  ·  Bubble nebula  ·  M 52  ·  NGC 7538  ·  NGC 7635  ·  NGC 7654  ·  PK112-00.1  ·  Sh2-158  ·  Sh2-161  ·  Sh2-162  ·  Sh2-163  ·  The star 4Cas
Getting plate-solving status, please wait...
M52 and the Bubble, 



    
        

            tommy_nawratil
Powered byPixInsight

M52 and the Bubble

Getting plate-solving status, please wait...
M52 and the Bubble, 



    
        

            tommy_nawratil
Powered byPixInsight

M52 and the Bubble

Imaging telescopes or lenses: TS Imaging Star 71

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Skywatcher AZ-EQ6

Guiding telescopes or lenses: Skywatcher 9x50 finder

Guiding cameras: MGEN

Software: Photoshop  ·  Pleiades Astrophoto, S.L. Pix Insight  ·  APT - Astro Photography Tool APT 3.13


Dates:July 20, 2016

Frames: 35x480" (4h 40')

Integration: 4h 40'

Avg. Moon age: 15.30 days

Avg. Moon phase: 99.67%


Astrometry.net job: 1170961

RA center: 23h 24' 12"

DEC center: +61° 36' 50"

Pixel scale: 2.247 arcsec/pixel

Orientation: -127.368 degrees

Field radius: 1.784 degrees


Resolution: 4542x3459

Locations: my lovely garden, near Vienna, Austria

Data source: Traveller

Description

first light for ZWO's ASI1600MMC camera! Here a LRGBHa shot with a 70/350 Apo under almost full moon. Ivo's APT was used to control the camera, and it worked like a charm. The cam is easy to handle, the calibration frames can be taken fast. Thanks to global shutter the flats can be taken with 0,05sec exposures using a LED Flatfield box. The ASCOM driver scales up the raw files to 16bit by just multiplying them by 16, which was a little annoying at first. i do not like raw files being touches by some automatism. But I compared by dividing them back, and the resulting master frames were quite the same.

By choosing low gain you can get best fullwell capacity, which I did here: Gain Zero. By choosing Gain maximum you get lowest readout noise, so you can use very short exposure time and try lucky imaging. A versatile camera!

LRGBHa 11/4/4/4/12x8min at -20°C

Comments

Sky plot

Sky plot

Histogram

M52 and the Bubble, 



    
        

            tommy_nawratil