Hemisphere:  Northern  ·  Contains:  NGC 7789  ·  The star ρCas
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NGC 7789: Caroline's Rose, 


NGC 7789: Caroline's Rose
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NGC 7789: Caroline's Rose

Technical card

Imaging telescopes or lenses: TS Photoline 72mm F/6 APO

Imaging cameras: Canon EOS 60D Ha-mod

Mounts: SkyWatcher HEQ5 SynScan

Guiding telescopes or lenses: Orion Mini 50mm Guidescope

Guiding cameras: Lacerta MGEN

Software: Adobe Lighroom  ·  Pleiades PixInsight

Filters: Hutech IDAS LPS-D1 EOS CLIP

Accessory: TS Optics PHOTOLINE APO Flattener Corrector (TSFLAT72)

Dates:April 6, 2019

Frames: 26x120" ISO800

Integration: 0.9 hours

Darks: ~10

Flats: ~10

Bias: ~200

Avg. Moon age: 1.06 days

Avg. Moon phase: 1.28%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details

Astrometry.net job: 3259853

RA center: 23h 54' 47"

DEC center: +56° 46' 1"

Pixel scale: 1.998 arcsec/pixel

Orientation: 359.561 degrees

Field radius: 1.635 degrees

Resolution: 4902x3265

Locations: Balkon, Dresden, Sachsen, Germany

Data source: Backyard


The open cluster NGC 7789 was discovered by Caroline Herschel in 1783 and is also known as Caroline's Rose Cluster. The distance to earth is 8000 light years and the age is estimated with 1,5 billion years, much older than other clusters.

This is the first light of my new HEQ-5 and the TS Photoline 72 f/6.



License: None (All rights reserved)

Sky plot

Sky plot


NGC 7789: Caroline's Rose, 



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