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Sh2-29 (Emission Nebula)


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Sh2-29
Emission Nebula (散光星雲)
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別名 (Other names)

Sharpless 29, Sh 2-29, NGC 6559, IC 4685, IC 1275, IC 1274, RCW 146c, Gum 75

星座 (Constellation)
いて座 (Sgr) (Sagittarius)

座標 (Coordinates)
(7.0°, -2.16°)

距離 (Distance)

Sh2-29 (RCW 146) is an emission nebula in the constellation Sagittarius.

Sh2-29 (Emission Nebula) : Picture

Sh2-29 (Emission Nebula)
Sh2-29 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
Sh2-29 is full of other catalog objects and also seen in this image is SH2-31 (in the upper right area) and SH2-32 (just to the right of SH2-31). NGC 6559 is the brighter nebula on the upper left side of the image with IC 4685 just below that in the center. This nebula complex is seen often with SH2-25 also known as Messier 8 – the Lagoon Nebula. The nebula does well with standard RGB color filters but the hydrogen alpha filter helps bring out the fainter areas. You can also use the oxygen III and sulfur II filters to create a nice narrowband color image. Sh2-29 offers much for any size telescope. The tiny bright area is a small planetary known as Minkowski 1-41.

Sh2-29 (Emission Nebula)
Sh2-29 (Emission Nebula)
(C) http://galaxymap.org/
Sh 2-29, Sh 2-31, and Sh 2-32 are a group of three nebulae next to the much larger Lagoon nebula. Sh 2-29 is the largest of the three. This group is combined together in the RCW (RCW 146c) and Gum (Gum 75) catalogs.

Avedisova concludes that Sh 2-29 is ionised by the O9 IV subgiant HD 165921.

NGC 6559
Stars, Dust and Nebula in NGC 6559
(C) Adam Block, Mt. Lemmon SkyCenter, U. Arizona
When stars form, pandemonium reigns. A textbook case is the star forming region NGC 6559. Visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. The first massive stars formed from the dense gas will emit energetic light and winds that erode, fragment, and sculpt their birthplace. And then they explode. The resulting morass can be as beautiful as it is complex. After tens of millions of years, the dust boils away, the gas gets swept away, and all that is left is a naked open cluster of stars.

Sh2-29 (Emission Nebula) NGC 6559
Sh2-29 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
Stars, Dust and Nebula in NGC 6559
(C) Adam Block, Mt. Lemmon SkyCenter, U. Arizona
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Sh2-29 (Emission Nebula) : Movie

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