Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  LBN 148  ·  Sh2-94
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Sh2 94, Jerry Yesavage
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Sh2 94

Getting plate-solving status, please wait...
Sh2 94, Jerry Yesavage
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Sh2 94

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Description

Two Collections for Comparison:

I am going over the Sharpless2 Objects again with my new C11 and a few more years experience. This version is about 4h of Ha and O-III and processed with StarX and BlurX and GHS. The stars are derived with the color option in GHS.  I tried to get a cleaner version than previously.

Below is a wider angle image taken with my Stellarvue for a total of 5h, more heavily stretched, and then a CCD for 20h.  


Sh2 94 GHS Stretching



Sh2 94 H-alpha O-III RGB


Basic Information From GalaxyMap about Sh2 94:

Sh 2-91, Sh 2-94 and Sh 2-96 are all filaments of the supernova remnant SNR 065.2+05.7, which has a diameter of about 70 parsecs and an age of about 20 thousand years.

The full extent of the supernova remnant can be seen in the visual frequency images in a 2004 paper. [1]

A small radio ridge of the SNR G 65.2+5.7 coincides with the small but bright filament S94.[2]

Notes: 

1. ^ Boumis, P., Meaburn, J., López, J. A., et al. (2004). "The kinematics of the bi-lobal supernova remnant G 65.3+5.7. II..", Astronomy and Astrophysics, Vol. 424, 583-588.

2. ^ Reich, W., Berkhuijsen, E. M., & Sofue, Y. (1979). "Radio continuum observations at 1420 MHz of the new SNR G65.2+5.7 in Cygnus", Astronomy and Astrophysics, Vol. 72, 270-276.

Distance Estimates:

The supernova remnant G 65.3+5.7 is located at a distance of 900 - 1000 pc but is described separately from Sh 2-94 = LBN 064.90+06.74 .

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

There are 313 Sh2 objects.  All now imaged by yours truly.  These are basically the Hydrogen Alpha and other ionized nebulae around the edge of the Milky Way.

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 3000 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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