Celestial hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  Sh2-294
Sh2 294 RGB HA (Octopus Nebula?), Jerry Yesavage
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Sh2 294 RGB HA (Octopus Nebula?)

Sh2 294 RGB HA (Octopus Nebula?), Jerry Yesavage
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Sh2 294 RGB HA (Octopus Nebula?)

Equipment

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Acquisition details

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Description

From GalaxyMap:

According to Avedisova this HII region is ionised by an uncatalogued B0.5 V star (MFJ Sh 2-294 4). It contains the loose infrared star cluster [BDS2003] 95 which is divided into two sub-clusters, the denser one surrounding the ionising star.

Its odd shape looks like an upside down octopus - should it perhaps be called the Octopus nebula? [Not sure where they get this idea, but it is out there.... body at the bottom and tentacles at the top??]

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

I have been on a project for several years now to image all the Sharpless2 Objects that I can see from my location near San Francisco. I chose these because they are visible in light polluted areas. These objects generally represent left over Hydrogen along the edge of the Milky Way that has gotten molded into interesting shapes.

There are 313 Sh2 objects as of the date when this image was posted:

I had imaged 230 (73%).

There are 11 too diffuse/large to image with my set up.

There are 6 that are never above 14 DEG elevation at my site and are too low for my 17 DEG min due South.

This leaves me 66 potentially still do-able and most are in Expert Scheduler waiting for them to pass by.

The first one was taken on December 23, 2013.

Many were taken with my old Tak 180 ED, which had a wide field of view, but was replaced with my Stellarvue 130, which is more narrow field. I have also taken two very wide field HA images with my Nikon D800 and a 50mm lens.

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 1500 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Hope you enjoy these obscure but interesting objects...

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