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Sh2-100 (Emission Nebula)


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Sh2-100
Emission Nebula (散光星雲)
Nb EN


別名 (Other names)

NGC 6857, Sharpless 100, Sh 2-100, LBN 161, PK 70+1.2

星座 (Constellation)
はくちょう座 (Cyg) (Cygnus)

座標 (Coordinates)
(70.3°, 1.6°)

距離 (Distance)

Sh2-100 (NGC 6857) is an emission nebula in the constellation Cygnus.

Sh2-100 (Emission Nebula) : Picture

Sh2-100 (Emission Nebula)
Sh2-100 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
This sharpless object is quite small but fairly bright. SH2-100 is seen in the middle of this image and as you can see there is a lot of nebulosity around it. Using a large telescope, you should pick up some nice detail in the brightest area. This part of the object may do well with the Sulfur II and Oxygen III filters but I picked up very little in my test. There is another area close to SH2-100 that may be of interest as well, this area and SH2-100 almost looks like a small Lagoon and Trifid nebula pair. With a wider field of view, you will pick up a lot of nebula some with very interesting structure. This entire area picks up very well with the hydrogen-alpha filter and brings out the best contrast, but the outer part of the nebula area is faint so you will need a long exposure. The bright area of SH2-100 picks up well with standard RGB filters so a large telescope should be able to create a nice color image with standard LRGB filters.

Sh2-100 (Emission Nebula)
Sh2-100 (Emission Nebula)
(C) http://galaxymap.org/
This star formation complex is embedded in the massive W58 radio source and molecular cloud, and is catalogued by Avedisova as SFR 70.29+1.60. The region also includes Sh 2-99, 5 masers, and numerous additional radio and infrared sources including 7 HII regions.

Sh2-100 (Emission Nebula)
Sh2-100 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
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Sh2-100 (Emission Nebula) : Movie

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