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Sh2-28 (Emission Nebula)


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Sh2-28
Emission Nebula (散光星雲)
Nb EN


別名 (Other names)

Sharpless 28, Sh 2-28, RCW 145, Gum 74a, NGC 6526

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

座標 (Coordinates)
(6.6°, 0.1°)

距離 (Distance)

Sh2-28 (RCW 145) is an emission nebula in the constellation Sagittarius.

Sh2-28 (Emission Nebula) : Picture

Sh2-28 (Emission Nebula)
Sh2-28 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
This nice size nebula is usually imaged with the lagoon and trifid nebulae along with a few others. This nebula responds to the hydrogen-alpha very well but very weak with standard RGB color filters. So if you do an RGB color you will need a long exposure time. I blended the H-Alpha channel with the red and blue image to create this HA-RGB image. The sulfur II filter does well here but lacks with the oxygen III.

Sh2-28 (Emission Nebula)
Sh2-28 (Emission Nebula)
(C) http://galaxymap.org/
This large faint HII region next to the Trifid nebula is ionised by the O9Ib supergiant LS 4551 and the O-class LS 4538, It lies in the direction of the supernova remnant SNR G006.4-00.1 (W 28).

Sh2-28 (Emission Nebula)
Sh2-28 (Emission Nebula)
(C) Image by Dean Salman - http://www.sharplesscatalog.com
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Sh2-28 (Emission Nebula) : Movie

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