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jshuder | all galleries >> Astrophotography >> Planetary Nebulae > NGC 7139
PN G104.1+07.9
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NGC 7139
PN G104.1+07.9

NGC 7139 (PK 104+07.1, PN G104.1+07.9) Planetary Nebula in Cepheus. Taken over several nights from
Sept. 26 through Oct. 20, 2016. Imaged with CCD Labís Q285M camera and a Celestron EdgeHD 9.25 at
f10, on a Losmandy G11/Gemini mount. The H alpha and OIII subframes were 15 minutes binned 1x1 while
the RGB subframes were 4 minutes binned 2x2, resulting in the following total exposures (Ha+OIII):
(R+Ha):(G+OIII):(B+OIII) (min) = (285+315):(64+285):(64+315):(64+315). This image is displayed at 0.57
arcsec/pixel. Captured with Nebulosity, calibrated, sigma combined in Iris with other processing using
PixInsight LE and Photoshop CS. North is up.


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Sakib 30-Sep-2018 22:48
This is quite possibly the best image I have seen of this PN.