Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  HD163919  ·  HD163936  ·  HD164018  ·  HD164030  ·  HD164068  ·  HD164171  ·  HD164193  ·  HD164225  ·  HD164226  ·  HD164294  ·  HD164384  ·  HD164402  ·  HD164452  ·  HD164492  ·  HD164514  ·  HD164534  ·  HD164637  ·  HD164703  ·  HD164704  ·  HD164717  ·  HD164718  ·  HD164739  ·  HD164766  ·  HD164767  ·  HD164815  ·  HD164833  ·  HD164844  ·  HD164864  ·  HD164883  ·  And 104 more.
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M20: The Trifid Nebula, FlapAstro
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M20: The Trifid Nebula

Getting plate-solving status, please wait...
M20: The Trifid Nebula, FlapAstro
Powered byPixInsight

M20: The Trifid Nebula

Equipment

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Acquisition details

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Description

This image is a composite of subs acquired with Optolong L-Extreme and Optolng L-Ultimate filters.

As noted by others, the L-Extreme filter suffers from large halos around brighter stars, which can be observed in this image. This appears to be caused primarily by the OIII band, and exacerbated by bright moonlight.

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