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jshuder | all galleries >> Astrophotography >> Planetary Nebulae > Abell 7
PN G215.5-30.8
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Abell 7<br>PN G215.5-30.8

Abell 7
PN G215.5-30.8

Abell 7 (PK 215-30.1, PN G215.5-30.8), planetary nebula in Lepus. The bluish star in the center is the
associated white dwarf (WD0500-156). This image took many nights to complete (due to poor winter
weather conditions) starting in Dec 22, 2009 and finishing up on Nov. 29, 2010. Imaged with CCD Labís
Q285M Camera and a C8N at f5 on a Losmandy G11/Gemini mount. The H-alpha and OIII subframes were
10 minutes binned 2x2, while the RGB frames were 1.5 minutes binned 2x2. The final total exposures
were (Ha+OIII) : (R+Ha) : (G+OIII) : (B+OIII) (min) = 440+440 : 45+440 : 45+440 : 45+440. Captured
with Nebulosity, calibrated and sigma combined in Iris with other processing using PixInsight
LE and Photoshop CS. North is up.


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