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Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage
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Sh2 213 (Faint Stromgren Sphere) and 214

Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage
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Sh2 213 (Faint Stromgren Sphere) and 214

Equipment

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Acquisition details

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Description

Another couple of Sharpless2 objects 213 done in a close-up.  It is apparently a mini version of the Rosette... see below.  I did not see anything with my prior attempt at 214 and again here.  I left the plate solve version as the primary image in case anyone wants to see the area in detail.  The 10x shows 213 best.

Other versions:


Sh2 213 HA RGB



Sh2 214 HA [Nothing There]


From GalaxyMap:

Berkeley 11 lies at a distance of 2100 parsecs.[[url=http://galaxymap.org/cat/view/sharpless/213#note_1]1]

Sh 2-213 may be a very faint Stromgren sphere around a B4 class star in the cluster Berkeley 11.[[url=http://galaxymap.org/cat/view/sharpless/213#note_2]2]

Stromgren Sphere From Wikipedia:  In theoretical astrophysics, there can be a sphere of ionized hydrogen (H II) around a young star of the [url=mw-redirect=https://en.wikipedia.org/wiki/Spectral_class]spectral classes[/url] O or B. The theory was derived by Bengt Strömgren in 1937 and later named Strömgren sphere after him. The Rosette Nebula is the most prominent example of this type of emission nebula from the H II-regions. 1. ^ Yadav, R. K. S. & Sagar, Ram (2002). "A deep UBVRI CCD photometric study of the open clusters Tr1 and Be 11", Monthly Notices of the Royal Astronomical Society, Vol. 337, 133-146. [[url=http://adsabs.harvard.edu/abs/2002MNRAS.337..133Y]2002MNRAS.337..133Y]  2. ^ Jackson, P. D., Fitzgerald, M. P., & Moffat, A. F. J. (1980). "Photoelectric UBV observations of the open cluster Berkeley 11", Astronomy and Astrophysics Supplement Series, Vol. 41, 211-214. [[url=http://adsabs.harvard.edu/abs/1980A%26AS...41..211J]1980A&AS...41..211J]

Sh 2-214 Beyond a short string of red pixels (which could be an artifact of the photographic plate) there is no visible nebulosity in this image. Avedisova places this object in star formation region SFR 157.59-3.91 along with the young T Tauri star IRAS 04172+4411. Beyond this association, there is essentially nothing in the scientific literature on this region.
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 2700 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...

Comments

Revisions

  • Final
    Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage
    Original
  • Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage
    B
  • Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage
    C

B

Title: 5X Crop Destarred H-alpha Sh 2-213

Uploaded: ...

C

Title: 10x Crop H-alpha destarred

Uploaded: ...

Sky plot

Sky plot

Histogram

Sh2 213 (Faint Stromgren Sphere) and 214, Jerry Yesavage

In these collections

Sharpless2 Objects