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Hemisphere:  Northern  ·  Contains:  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2246  ·  NGC 2252  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  The star 12Mon
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Rosette Nebula (Caldwell 49), 


            Henning Schmidt
Rosette Nebula (Caldwell 49)
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Rosette Nebula (Caldwell 49)

Technical card

Imaging telescopes or lenses: SkyWatcher Esprit 80ED

Imaging cameras: QHYCCD QHY 183M  ·  QHYCCD QHY 183C

Mounts: SkyWatcher EQ8 Pro

Software: Adobe PS CS2  ·  PixInsight

Filters: Baader Planetarium H 1.25", Ha 7nm  ·  Hutech IDAS 1.25" LPS P2

Accessory: Lacerta Mgen

Dates:Feb. 14, 2018Feb. 7, 2019

Baader Planetarium H 1.25", Ha 7nm: 12x600" (gain: 20.00) -30C
RGB: 17x300" (gain: 20.00) -30C

Integration: 3.4 hours

Darks: ~100

Bias: ~200

Avg. Moon age: 15.30 days

Avg. Moon phase: 3.94%

Basic astrometry details job: 3968244

RA center: 6h 31' 58"

DEC center: +4° 57' 7"

Pixel scale: 1.209 arcsec/pixel

Orientation: 180.091 degrees

Field radius: 1.033 degrees

Resolution: 4948x3656

Locations: Home observatory, Rostock, Mecklenburg-Vorpommern, Germany

Data source: Backyard


Rosette Nebula (Caldwell 49), Composite with Halpha (QHY 183M, 12x 600 sec) from 07.02.2019 and RGB (QHY 183C, 17x 300 sec) from 14.02.2018; Gain 20 and Offset 30, cooled: -30°C, new version.



Henning Schmidt
License: None (All rights reserved)

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Rosette Nebula (Caldwell 49), 


            Henning Schmidt