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NGC 2903 (Leo)
Click on the image for a larger version
| Date/Site: |
19. and 20. March 2018. Remote observatory on the AAR club's site in Presberg |
Exposure/
Filter: |
RGB: all 3 x 300 seconds,
L: 6 x 300 seconds (-20°C) |
| Camera: |
QSI 632 with Astronomik Type II-Filters |
Optics/
Instrument: |
250mm f/4 Newton with Baader RCC1 on 10Micron GM1000 HPS |
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Guiding: Lodestar attached to a 61mm-finder,
focusing with Microtouch and FocusMax,
image acquisition and calibration with MaximDL 6,
processing: PixInsight 1.8 |
First remote image with the new observatory.
And here some older images of this object:
NGC 2903 (Leo)
Click on the image for a larger version
| Date/Site: |
March 8. and 9., 2010, AAR-observatory in Presberg |
Exposure/
Filter: |
L: 4 x 5 minutes, 3 x 10 minutes,
RGB each 4 x 5 minutes (-25°C) |
| Camera: |
SBIG ST10XME with CFW9 and SBIG LRGB-filters |
Optics/
Instrument: |
26cm-Newton on Gemini 41 Observatory |
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Focusing with Robofocus |
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Darks, flats, deblooming, alignment and stacking: MaximDL 5,
Levels and curves: Photoshop CS3. |
In the first night transparency was mediocre, the second night was extraordinarily clear. The strong easterly wind with gales was a bit of a nuisance at -12 - -14°C.
For comparison the same object captured one year before.
NGC 2903 (Leo)
Click on the image for a larger version
| Date/Site: |
March 18., 2009, AAR-observatory in Presberg |
Exposure/
Filter: |
L: 4 x 5 minutes (-25°C) |
| Camera: |
SBIG ST10XME |
Optics/
Instrument: |
13"-Newton on the Gemini 41 Observatory mount |
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focusing with RoboFocus and MaximDL |
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Deblooming, darks, alignment and stacking: MaximDL,
levels and curves: Photoshop CS |
Good transparency, no wind, -2°C, hoar frost.
NGC 2903 is a barred spiral, visually a bright and pretty object.
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