Hemisphere:  Northern  ·  Contains:  NGC 7243
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Open Star Cluster NGC 7243, Caldwell 16, 



    
        

            Steven Bellavia
Open Star Cluster NGC 7243, Caldwell 16
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Open Star Cluster NGC 7243, Caldwell 16

Technical card

Imaging telescopes or lenses: William Optics RedCat 51 Petzval APO

Imaging cameras: ZWO ASI183MC Pro

Mounts: Sky-Watcher EQ-6R Pro SynScan

Guiding telescopes or lenses: ZWO 30mm f/4 Guide Scope

Guiding cameras: ASI224MC

Software: Pleiades Astrophoto PixInsight  ·  IDEIKI AstroPhotography Tool (APT)  ·  Stark Labs Nebulosity 4.2  ·  SharpCap Pro 3.2  ·  PHD2 Guiding

Filters: Astronomik L2 UV/IR Cut


Dates:Sept. 7, 2019

Frames:Astronomik L2 UV/IR Cut: 30x120" (gain: 100.00) -15C bin 1x1

Integration: 1.0 hours

Darks: ~30

Flats: ~30

Flat darks: ~30

Avg. Moon age: 8.70 days

Avg. Moon phase: 63.79%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 20.00

Mean FWHM: 6.00

Temperature: 15.00


Basic astrometry details

Astrometry.net job: 2921266

RA center: 22h 15' 12"

DEC center: +49° 53' 13"

Pixel scale: 1.993 arcsec/pixel

Orientation: 176.419 degrees

Field radius: 1.829 degrees


Resolution: 5494x3670

Data source: Backyard

Description

NGC 7243, Caldwell 16, is an open cluster in the constellation Lacerta. It lies approximately 2,800 light-years away, and is thought to be just over 100 million years old, consisting mainly of white and blue stars.
The first image ("original") was First Light for the William Optics 51mm f/4.9 Petzval "RedCat" Apo refractor. The next ("final") image was after tweaking the collimation and support screws around the objective cell, while viewing an artificial star. Both images are deliberately un-cropped.

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bellavia
Steven Bellavia
License: None (All rights reserved)
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            Steven Bellavia
    Original
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    Open Star Cluster NGC 7243, Caldwell 16, 



    
        

            Steven Bellavia
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Open Star Cluster NGC 7243, Caldwell 16, 



    
        

            Steven Bellavia