Sh2 224 (Jerry Yesavage)

Sh2 224

An new ZWO ASI 6200MM Pro view. H-alpha and O-III.

from GalaxyMap.

This is the supernova remnant SNR 166.0 +4.3, which is visible at both hydrogen-alpha and radio frequencies.

SIMBAD maintains separate entries for SNR 166.0 +4.3 and Sh 2-224, but this seems incorrect according to the scientific literature.

One study estimates the age as 81 thousand years.

A much better image of this object can be found here.

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

There are 313 Sh2 objects and I have imaged all one way or another.

The first one was taken on December 23, 2013 and the series completed October 17, 2019.

Some of the challenges with this series are FOV size and low declination:

FOV: There are 11 too diffuse/large to image well with my set up (Sh2 111, 117, 122, 131, 132, 145, 178, 218, 230, 268 and 310). I have imaged the first 6 of these mostly in the Nikon Wide angle shot referenced below and 178 and 230 as part of other images.

DEC: There are 5 that are never above 14 DEG (Sh2 2-6) but as of 7/12/21 I can get these now with pier upgrades and the images are completed as best as I can.

EQUIPMENT: 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. I transitioned from my CCD SBIG 8300M to a CMOS ZWO ASI6200M Pro in September 2021.

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

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

Members of Deep Sky West
Suburban Astrophotography
Astrophotographes (France)
Narrowband imaging
Fine Art Astrophotography
PixInsight Addicts
"Simply Stellarvue"
Sharpless2 Objects
Light Polluted skies
ASI 6200 MM Pro
The refractors!
Cloudy Nights
SF Bay Area Imagers

Sharpless2 Objects

	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Star trails
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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Status	Advanced success
Started	...
Astrometry.net job	5312968
PixInsight job	83TE9AS9W1893Z5LIAG20F25KOJ5GMQM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h26m45s.378
RA (top/left)	05h29m55s.801
RA (top/right)	05h29m57s.184
RA (bottom/right)	05h23m29s.187
RA (bottom/left)	05h23m40s.800

Dec (center)	+42°50′10″.93
Dec (top/left)	+41°56′23″.98
Dec (top/right)	+43°44′28″.53
Dec (bottom/right)	+43°43′50″.33
Dec (bottom/left)	+41°55′58″.97

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Sh2 224

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