| Sh2-155 (also designated Caldwell 9) is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth. [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, Ha 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 22:57:05 DEC 62:34:50 J2000
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Date
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12, 13, 17 September
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Site
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Astrobioparco di Felizzano, AL, Italy
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| Exposures
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Ha - 24x900 @-10C bin 1x1
L - 36x600 bin 1x1
R - 12x600 bin 2x2
G - 8x600 bin 2x2
B - 12x600 bin 2x2
Integration time - 17h 20m
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