Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  The star ο1CMa
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Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
Sh2 308 Narrowband Dolphin Nebula
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Sh2 308 Narrowband Dolphin Nebula

Getting plate-solving status, please wait...
Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
Sh2 308 Narrowband Dolphin Nebula
Powered byPixInsight

Sh2 308 Narrowband Dolphin Nebula

Equipment

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Acquisition details

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Description

From GalaxyMap:

This ring nebula, also called RCW 11, is associated with WR 6. [1]

WR 6 may also ionise Sh 2-303 and Sh 2-304. [2]

Notes

1. Arnal, E. Marcelo & Cappa, Cristina E. (1996). "The HI distribution in the environment of the WR star HD 50896", Monthly Notices of the Royal Astronomical Society, Vol. 279, 788-798. [1996MNRAS.279..788A]

2. Chu, Y.-H., Troland, T. H., Gull, T. R., et al. (1982). "Galactic ring nebulae associated with Wolf-Rayet stars. IV - The ring nebula S308 and its interstellar environment", The Astrophysical Journal, Vol. 254, 562-568. [1982ApJ...254..562C]

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 234 (75%).

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 62 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...

Comments

Revisions

  • Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
    Original
  • Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
    C
  • Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
    D
  • Final
    Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage
    E

C

Description: A little 3d LUT

Uploaded: ...

D

Description: Topaz AI HDR "Structured" preset

Uploaded: ...

E

Description: Topaz AI HDR "Bright Detailed" preset

Uploaded: ...

Sky plot

Sky plot

Histogram

Sh2 308 Narrowband Dolphin Nebula, Jerry Yesavage

In these collections

Sharpless2 Objects