NGC 40 Planetary Nebula (Jerry Macon)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Bow-Tie nebula · NGC 40 · PK120+09.1

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NGC 40 Planetary Nebula

Acquisition type: Lucky imaging

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NGC 40 Planetary Nebula

Acquisition type: Lucky imaging

The Planetary Nebula NGC 40 has about the most intense Ha emission of any target I know of. This image is pure RGB. I did take Ha which I did not use because the Ha stacked image looked identical to the R stacked image. The B is also very strong, and the G good but less intense. As we see, 6 second exposures are plenty for this target to bring out the details of this nebula. Even so, it looks over exposed. I actually had to tone it down some from the initial stacked results, as opposed to most PN that require some boosting.

NGC 40 (also known as the Bow-Tie Nebula and Caldwell 2) is a planetary nebula discovered by William Herschel on November 25, 1788, and is composed of hot gas around a dying star. The star has ejected its outer layer which has left behind a smaller, hot star with a temperature on the surface of about 50,000 degrees Celsius. Radiation from the star causes the shed outer layer to heat to about 10,000 degrees Celsius, and is about one light-year across.[3] About 30,000 years from now, scientists theorize that NGC 40 will fade away, leaving only a white dwarf star approximately the size of Earth. (Wikipedia)

Planetary Nebulae

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Status	Advanced success
Started	...
PixInsight job	PVU6EESBSSR7J4YA0AKQBVQHM218A7OJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h12m51s.394
RA (top/left)	00h11m05s.968
RA (top/right)	00h11m12s.755
RA (bottom/right)	00h14m34s.598
RA (bottom/left)	00h14m32s.201

Dec (center)	+72°31′08″.99
Dec (top/left)	+72°42′24″.66
Dec (top/right)	+72°19′36″.27
Dec (bottom/right)	+72°19′50″.12
Dec (bottom/left)	+72°42′38″.76

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NGC 40 Planetary Nebula

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