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Contains:  12 Mon, NGC 2237, NGC 2238, NGC 2239, NGC 2246, NGC 2252, NGC2237, NGC2238, NGC2239, NGC2244, NGC2246, NGC2252, Rosette A, Rosette B, Rosette Nebula, Rosette nebula, Sh2-275, The star 12Mon
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NGC 2244 *HSO, 


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NGC 2244 *HSO

Imaging telescopes or lenses: Celestron RASA

Imaging cameras: ZWO ASI 1600MM-Cooled ASI1600MM Cooled

Mounts: Celestron CGX

Guiding telescopes or lenses: Orion 80mm GuideScope Guide scope

Guiding cameras: Orion SSAG

Software: SGP  ·  StarTools 1.6  ·  PhD 2  ·  RegiStax 6.0 REGISTAX 6  ·  ATIK Dusk  ·  DeepSky Stacker (DSS) DSS DeepSkyStacker  ·  ATIK INFINITY

Filters: Baader Planetarium F/2 Highspeed filter set

Accessory: Celestron Focus Motor  ·  Adapter M42 T2/T2 M42T2  ·  Baader Ufc 2" #2459112  ·  Baader Ufc S70 RASA 8 #2459136  ·  Baader Ufc filter base#2459110  ·  Baader Ufc T2 adapter #2459115  ·  Baader Universal Filter Changer (UFC)  ·  Bahtinov mask  ·  Baader Planetarium Rasa 8 UFC  ·  Orion SSAG 80mm

Dates:March 16, 2020

Frames: 94x120"

Integration: 3.1 hours

Avg. Moon age: 22.23 days

Avg. Moon phase: 49.12% job: 3324409

RA center: 6h 31' 52"

DEC center: +4° 55' 41"

Pixel scale: 1.969 arcsec/pixel

Orientation: -83.297 degrees

Field radius: 1.459 degrees

Resolution: 4390x3029

Locations: UGG-419 Observatory, Canada, Canada

Data source: Backyard


16-03-2020: additional 2 hours of O-III data with Baader highspeed filter processed with 1-28-2020 S-II and Ha data.

Focus: 10290, HFR: 1.6, Q=98% (recalibrated after CGX handcontrol failure, reloaded firmware for CGX mount, handcontroler and focuser. Remounted focuser, hex screw loose on focus shaft)
Nexstar Cgem Handcontroler error 16/17 RA Dec motor. Replaced HC on 14-03-2020. Called Celestron will replace CGX HC (3yr CGX warranty).

Mean O-III ADU: 3,100 (high...)
Stars: 500
HFR: 2.1 - 2.2
(High clouds - poor to average) -> just can't get one good observation night.

Red channel: Ha-50% + S-II 50%
Green channel: Ha-50% + O-III 50%
Blue channel: 100% O-III



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License: None (All rights reserved)


  • Final
    NGC 2244 *HSO, 


            Rich Sky
  • NGC 2244 *HSO, 


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Sky plot

Sky plot


NGC 2244 *HSO, 


            Rich Sky