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Sh2-78 (Planetary Nebula)


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Sh2-78
Planetary Nebula (惑星状星雲)
Nb PN


別名 (Other names)

Sharpless 78, Sh 2-78, PN CTSS 3, PK 046+03.1

星座 (Constellation)
わし座 (Aql) (Aquila)

座標 (Coordinates)
(46.84°, 3.84°)

距離 (Distance)
14,000光年 (14,000 light-years)

Sh2-78 is a planetary nebula located 14,000 light years from the Earth in the constellation Aquila.

Sh2-78 (Planetary Nebula) : Picture

Sh2-78 (Planetary Nebula)
Sh2-78 (Planetary Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
This planetary nebula is quite faint and not an easy object to image. The nebula does respond to the hydrogen-alpha very well and the oxygen III about half as much. However, the sulfur II is so weak that a narrowband color image with all three filters is almost impossible to do. The standard color RGB filters also are very weak so using the H-Alpha channel to colorize the image may be the best way to go. Wide field systems do not have much to image here, so I would suggest larger telescopes for this one. Being as faint as it is, a fast optical system will work best unless you have all the time in the world.

Sh2-78 (Planetary Nebula)
Sh2-78 (Planetary Nebula)
(C) http://galaxymap.org/
This is the old planetary nebula CTSS 3 and lies at a distance of 700 parsecs.

Sh2-78 (Planetary Nebula)
Sh2-78 (Planetary Nebula)
(C) Palomar Observatory

Sh2-78 (Planetary Nebula)
Sh2-78 (Planetary Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
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