Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  HD164193  ·  HD164294  ·  HD164384  ·  HD164402  ·  HD164492  ·  HD164514  ·  HD164534  ·  HD164704  ·  HD313595  ·  HD313596  ·  HD313597  ·  HD313598  ·  HD313606  ·  HD313610  ·  HD313713  ·  HD313714  ·  HD313715  ·  HD313716  ·  HD313718  ·  HD313731  ·  HD313732  ·  HD313733  ·  HD313734  ·  HD313735  ·  HD313736  ·  HD313737  ·  HD313739  ·  HD313740  ·  LBN 27  ·  And 3 more.
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M20, Trifid Nebula, Sergey Trudolyubov
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M20, Trifid Nebula

Getting plate-solving status, please wait...
M20, Trifid Nebula, Sergey Trudolyubov
Powered byPixInsight

M20, Trifid Nebula

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Description

M20, the Trifid Nebula imaged over a few nights in June 2018 with my mobile setup, Stellarvue APO SVA130T@f7/ASI183MM Pro on the Orion HDX-110 EQ-G mount. Test of the new camera: trying to see how much detail can be extracted from the core of a bright object under less than favorable seeing conditions (low altitude, unstable atmosphere).

L: 50x180s (Gain 0, bin1x1)

R: 10x360s (Gain 0, bin1x1)

G: 8x360s (Gain 0, bin1x1)

B: 10x360s (Gain 0, bin1x1)

Total exposure: 5.3 hours

Final image binning - 2x2

The Trifid Nebula (Messier 20) in Sagittarius constellation, is a star-forming region located ~5,200 light years away from us. It is a combination of an open star cluster and an emission and reflection nebulae. The lower portion of the nebula is an H II region with red emission coming from hydrogen atoms ionized by intense UV radiation from a group of young massive stars seen in the center (the most prominent star, HD164492A being roughly 20 times more massive than our Sun). The upper blue part of the nebula comes from the reflection of the starlight by interstellar dust clouds. The dark filaments dissecting the emission nebula and projected against the reflection nebula are made of dense gas and dust. Some reflection from the edges of these dust filaments can be seen as thin bluish threads surrounding the central star cluster.

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M20, Trifid Nebula, Sergey Trudolyubov

In these public groups

"Simply Stellarvue"
ZWO ASI183/QHY183