Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 7789
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NGC 7789, 



    
        

            Roberto Marinoni
NGC 7789
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Getting plate-solving status, please wait...
NGC 7789, 



    
        

            Roberto Marinoni
NGC 7789
Powered byPixInsight

Equipment

Imaging Telescopes Or Lenses
Tecnosky APO 130 F7 Lanthanum Triplet
Imaging Cameras
Atik 4000
Mounts
EQ8
Filters
Baader Blue 2" · Baader Green 2" · Baader Red 2"
Accessories
Starlight Xpress SX USB Filter Wheel 5x2" · Riccardi-Reducer Riccardi 0.75x
Software
PHD guiding · Voyager · Pixinsight 1.8 · Adobe Photoshop CS 5
Guiding Telescopes Or Lenses
70mm UltraGuide Artesky
Guiding Cameras
Lodestar

Acquisition details

Dates:
Oct. 10, 2021 ·  Oct. 13, 2021 ·  Oct. 14, 2021
Frames:
Baader Blue 2": 19x300" (1h 35') -20°C bin 1x1
Baader Green 2": 19x300" (1h 35') -20°C bin 1x1
Baader Red 2" : 19x300" (1h 35') -20°C bin 1x1
Integration:
4h 45'
Darks:
15
Flats:
15
Flat darks:
15
Avg. Moon age:
7.03 days
Avg. Moon phase:
46.77%
Mean SQM:
18.50

Basic astrometry details

Astrometry.net job: 5236554

RA center: 23h57m22s.3

DEC center: +56°4210

Pixel scale: 2.203 arcsec/pixel

Orientation: 2.002 degrees

Field radius: 0.886 degrees

Resolution: 2047x2047

Locations: Home observatory, Rescaldina, Milano, Italy

Data source: Backyard

Description

NGC 7789 is an open cluster in Cassiopea constellation.
It is a very rich and concentrated cluster, formed by several hundred components and with an apparent diameter of 25’; its distance is estimated to be around 7620 light years.
Its age is quite advanced, estimated at 1.7 billion years or slightly less.

Comments

Sky plot

Sky plot

Histogram

NGC 7789, 



    
        

            Roberto Marinoni