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| Open star cluster Messier 35 (M35, NGC 2168) is consisted of several hundred stars (of which Ake Wallenquist has counted 120 brighter than mag 13)
scattered over the area covered by the full Moon (30').
The fainter neighbor, NGC 2158 (at the lower right in our image); is situated just about 15 arc minutes southwest of M35.
NGC 2158, of about mag 8.6 and about 5 arc minutes angular diameter, contains many more stars, is much more compact,
over 10 times older and over five times more remote than M35
More informations are also available at the seds.org website |
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| Optics |
130 mm f/6.7 Astro-Physics EDF Refractor with Prime focus field flattner 67PF56. TMB Triplet Apo 80 mm f/6 for guiding |
| Mount |
Astro-Physics AP 900GTO |
| Camera | SBIG ST-10XME. With a Remote Guiding Head |
| Filters | SBIG CFW9. Astrodon LRGB filters. Baader-Planetarium 7 nm Ha,SII,OII, filters |
| Focuser | Robofocus focuser and Focusmax software |
| Dates | January 2008. |
| Location | Lentin Observatory |
| Exposure |
LRGB L=90(30X3)minutes.bin1; R=72,G=70,B=80 minutes bin2( Scale 1.6^s/pixel. T=-25°c |
| Acquisition | All data's were acquired unattended with ACP Observatory Control Software V5 DC3 Dreams and MaxIm DL 4, including sky flats , |
| Processing | MaxIm DL 4, PixInsight, Photoshop CS2. |
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All content are copyright
Antoine Vergara