Sh2 276 Barnard's Loop Area (Jerry Yesavage)

Sh2 276 Barnard's Loop Area

An alternative of the prior image from the collection:

Sh2 276 or Barnard's Loop and M78 from SRO

From GalaxyMap:

Barnard's Loop is a ring of ionised gas that appears to surround the Flame (Sh 2-277) and Orion (Sh 2-281) nebulae and is the brightest portion of the much larger Orion-Eridanus superbubble. Many researchers assume that Barnard's Loop is physically associated with these nebulae and the Orion molecular clouds. However, a 2005 study argues that Barnard's Loop is considerably closer than the gas that makes up the main portion of the Orion molecular clouds.

This image shows only a small portion of the nebula. You can see the full Loop 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...

Original
Final
E

E

Description: Same area done with reducer increases FOV.

Uploaded: ...

Sharpless2 Objects
Cloudy Nights

Sharpless2 Objects

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	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

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5255674
PixInsight job	F6O4I5VNJ0TUIHE862I75GZO6W7W0ZVE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h27m35s.63
RA (top/left)	05h31m16s.81
RA (top/right)	05h23m35s.11
RA (bottom/right)	05h23m53s.90
RA (bottom/left)	05h31m37s.57

Dec (center)	-03°57′54″.5
Dec (top/left)	-02°27′19″.2
Dec (top/right)	-02°30′34″.7
Dec (bottom/right)	-05°28′24″.8
Dec (bottom/left)	-05°25′25″.7

Image Index:

Contribution Index (beta):