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Contains:  NGC 2903, NGC2903, NGC2905
Getting plate-solving status, please wait...
NGC2903 in Leo  Version 2, 


            Arnaud Peel
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NGC2903 in Leo Version 2

Imaging telescopes or lenses: LACERTA NEWTON NEWTON 300 F4 /1200mm

Imaging cameras: ZWO 1600mm Cooled Pro

Mounts: AstroPhysics AP1100 CP3

Guiding telescopes or lenses: LACERTA NEWTON NEWTON 300 F4 /1200mm

Guiding cameras: ZWO ASI290M

Software: PixInsight PinInsight 1.8  ·  PHD Labs PHD 2 Guiding  ·  SGP Pro

Filters: Baader L  ·  Baader RVB  ·  Baader Ha 7nm 36mm Baader

Dates:March 25, 2020

Ha: 35x296" bin 1x1
Baader L: 71x180" bin 1x1
Baader RVB: 60x179" bin 1x1

Integration: 9.4 hours

Avg. Moon age: 0.98 days

Avg. Moon phase: 1.09% job: 3366547

RA center: 9h 32' 9"

DEC center: +21° 30' 4"

Pixel scale: 0.652 arcsec/pixel

Orientation: -90.360 degrees

Field radius: 0.269 degrees

Resolution: 2104x2104

Locations: au Pied du Ventoux, Ventoux, 84, France

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Version2 : enhancement of the HII modules !
My version of this great galaxy NGC2903 in classical LRGB but also with Halpha .
Halpha really adds a good balance of the colors with its HII nodules well defined , without tweaking the cursor ...

NGC 2903 is a field barred spiral galaxy about 30 million light-years away in the constellation Leo. It was discovered by William Herschel who cataloged it on November 16, 1784. NGC 2903 has a very high rate of star formation in its central region. NGC 2905 is a bright star cloud within this galaxy

3 nights : 23/24, 24/25 february and 11 march

71 Light subs @180s gain zero and -20°C and

35 Halpha subs @300s gain 139 and -20°C and
20 Blue subs @180s gain zero and -20°C
20 Green subs @180s gain zero and -20°C
20 Red subs @180s gain zero and -20°C



Arnaud Peel
License: None (All rights reserved)


  • NGC2903 in Leo  Version 2, 


            Arnaud Peel
  • Final
    NGC2903 in Leo  Version 2, 


            Arnaud Peel


Description: Zoom

Sky plot

Sky plot


NGC2903 in Leo  Version 2, 


            Arnaud Peel