B343 is a dark nebula in the constellation of Cygnus, near Sadr. It consists in clouds of dust and gas in line of sight over the more known IC1318, obscuring its light.
It belongs to the Barnard Catalogue of Dark Markings in the Sky, or the Barnard Catalogue for short. A 1919 version of the catalogue listed 182 nebulae; by the time of the 1927 version, it listed 369. [Wiki] |
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| Optic |
SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector |
| Camera |
Atik 383L+ |
| Filters |
Baader L, R, G, B 36mm |
| Mount |
NEQ6 with EQASCOM
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Guide
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SW 70/500 with AlCCD5
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Frame center
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RA 20:13:21 DEC 40:16:31 J2000
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Date
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11th July 2016
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Site
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Pian dell Armà, Italian Alps
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| Exposures
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R - 4x300s bin 2x2 @ -10°C
G - 4x300s bin 2x2
B - 4x300s bin 2x2
Ha - 9x600s bin 1x1
Integration time - 2h 30m
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