NGC7023 - The Iris nebula
The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula in the constellation of Cepheus. It lies 1,300 light-years away and is six light-years across.
M: Avalon Linear Fast reverse
T: Celestron C9.25
C: QSI690 WSG with Baader filters
92x300s Lum 2x2
58x300s lum 1x1
Total of 17:16:40s
The Iris Nebula (NGC7023) is a reflection nebula approximately 1300 light years away, located in the constellation of Cepheus. On the right hand of the image is VdB 141 (The ghost nebula) so called because of it's shape. This is also a reflection nebula and is about 1500 light years away.
M: Avalon Linear fast reverse
T: Takahashi FSQ 85
C: QSI690ws-g with Lum filter and Starlight Express Trius SX25C OSC for the colour.
Luminance - 2 pane mosaic 54x600s in total
Colour - 100x600s
Totalling 25 hours and 40 minutes