Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  CP Cyg  ·  HD206167  ·  HD206280  ·  HD207431  ·  HD207487  ·  LBN 414  ·  Sh2-123
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Sh2 123 (The Tick), Jerry Yesavage
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Sh2 123 (The Tick)

Getting plate-solving status, please wait...
Sh2 123 (The Tick), Jerry Yesavage
Powered byPixInsight

Sh2 123 (The Tick)

Equipment

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Acquisition details

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Description

Yet another recast of a Sharpless2 object.  Background comes out with the GHS stretch and the CMOS camera.  2h H-alpha.  The object itself is pretty bright. 

Below is 20h H-alpha with my old CCD:


Sh2 123 HA RGB


GHS Forum Discussion

From GalaxyMap:

Examining this region in hydrogen-alpha suggests that Sh 2-123 is joined to the equally mysterious Sh 2-113, Sh 2-114 and Sh 2-118 in a long ridge of nebulosity south and south-east of Sh 2-117, the North American nebula. Sh 2-114, Sh 2-118 and Sh 2-123 have distance estimates of about 4000 parsecs. If this ridge is also at 4000 parsecs, it must be enormous.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

There are 313 Sh2 objects.  All now imaged.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 2600 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

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