TECHNICAL DETAILS
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NGC 2903 in Leo, type Sb+

First light of my Artemis Art 4021 CCD camera

 

Discovered by William Herschel on November 16, 1784.

Right Ascension 9:32.2 (h:m)
Declination +21:30 (deg:m)
Distance 20 500 000 (ly)
Visual Brightness 8.9 (mag)
Apparent Dimension 12.6' x 6.6'

FOV with my setup was 7 x 7 arcmin , that is why not entire galaxy was captured in this frame.

 

Optic(s)

24" Zeiss Cassegrain @ f/12.5

Mount:

German Equatorial - Zeiss

Camera:

Artemis Art 4021 - monochrome cooled CCD camera – 2048 x 2048 px ; 16x16 mm; 7.4 µm x 7.4 µm (FOV with this setup 7 x 7 arcmin)

Filters:

Astronomics LRGB Set (RGB and IR cut), ATiK Filter Wheel

Dates/Times:

9.03.2008 / 22:03 - 22:23 UT

Location:

Observatory Belogradchik (BAS) - West BALKAN mountain

Exposure Details:

Luminance (IR cut): 14 x 75 sec (1x1 binning); Total ExposureTime - 17.5 min (short exposures because of not guiding)
More details:
Dark frames only calibrated. The transparency 5/7 and the seeing 5/10 in that night was not so good.
Guiding:
No

Processing:

ArtemisCapture / MaxIm DL / PhotoShop / SAOImage ds9

 

 

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All Contents copyright Velimir Popov unless otherwise noted.