NGC 281 | ||
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| Description: | This emission nebula is known as 'The Pacman Nebula'. It is a large, ionized hydrogen cloud that is made visible by the radiation from the young, hot stars within the central, open cluster ( IC 1590). The brightest 'star' in this cluster is responsible for most of the ionizing radiation and is actually a quadruple star. We can make out three of these stars in the above image. Also visible are some Bok Globules, which are the small, dark features composed of gas and dust. | |
| Constellation: | Cassiopeia | |
| Distance: | 10,000 light years | |
| Date: | 13, 15, 16, 21, 23 august & 6 september | |
| Equipment: | AP155 @ f/7, ST10XME, AP1200 | |
| Exposure: | SII,Ha,OIII: 8.5-4-10 hours All unbinned (Astrodons)
Mapped as follows: SII to Red, Ha to Green, OIII to Blue |
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| Note: | This is my first mapped image. | |