The Cygnus Sharpless Trifecta (Sh2-115, 116, 112) (Brent Cooley)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: LBN 337 · LBN 351 · LBN 352 · LBN 357 · LBN 358 · LBN 362 · LBN 367 · LBN 368 · LBN 372 · LBN 375 · LBN 376 · LDN 920 · LDN 925 · LDN 926 · LDN 929 · LDN 930 · PK085+04.1 · Sh2-112 · Sh2-115 · Sh2-116

Image of the day 12/07/2021

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The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

Image of the day 12/07/2021

Powered byPixInsight

The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

On the edge of a molecular cloud in the Milky Way's outer reaches lies this swath of several emission nebula. The first, identified as the large, bright core in the top-center, is cataloged as Sh2-115. This area is characterized by the ionized oxygen emitted, seen here in blue and turquoise. Ionized hydrogen and sulfur make up much of the neighboring nebulosity, shown in shades of red and orange in this narrowband composite image.

The second nebula is the small, round blue structure, right of center. This object is cataloged as Sh2-116 and was once thought to be a planetary nebula but has more recently been reclassified as an emission nebula as well.

The third distinct nebula falls in the upper-left of this image and appears flower-like, with a prominent band of dark, bisecting dust. This object is cataloged as Sh2-112. Like the others in this image, it is an emission nebula. However, it differs from its visually-nearby neighbors by being nearly 2,000 light years closer to Earth.

This entire region of sky lies only about 1 degree from the brightest star in the constellation Cygnus, Deneb, a star easily recognizable to many as part of the “Summer Triangle” asterism.

Due to the wide field, low resolution sampling of this image, it was processed using 2x drizzle integration in PixInsight. After processing, it was scaled down 50% for display.

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ZWO ASI1600MM/QHY163M
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Sharpless2 Objects

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Status	Advanced success
Started	...
Astrometry.net job	5258421
PixInsight job	ZTNHWSWQQKSS3TRYCQ9ZMW1A24VH4VVP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h31m23s.10
RA (top/left)	20h37m35s.46
RA (top/right)	20h38m12s.16
RA (bottom/right)	20h24m51s.64
RA (bottom/left)	20h24m54s.72

Dec (center)	+46°43′36″.4
Dec (top/left)	+45°18′15″.1
Dec (top/right)	+48°05′12″.6
Dec (bottom/right)	+48°07′35″.0
Dec (bottom/left)	+45°20′31″.9

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Image of the day 12/07/2021

The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

Image of the day 12/07/2021

The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

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Image of the day 12/07/2021

The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

Image of the day 12/07/2021

The Cygnus Sharpless Trifecta (Sh2-115, 116, 112)

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