SH2-84 - Ha Region in Sagitta (Kurt Zeppetello)

Celestial hemisphere: Northern · Constellation: Sagitta (Sge) · Contains: 7 del Sge · 9 Sge · Sh2-84 · The star δSge

Powered byPixInsight

SH2-84 - Ha Region in Sagitta

Link: http://astroquest1.blogspot.com/

Powered byPixInsight

SH2-84 - Ha Region in Sagitta

Link: http://astroquest1.blogspot.com/

SH2-84 is a faint emission nebula located approximately 16,300 light years from Earth in the constellation of Sagitta, the Arrow. It is a member of the Sharpless catalogue of emission nebulae which contains 313 entries representing H-II emission nebulae with a declination of -27 degrees or above, compiled by American astronomer Stewart Sharpless in 1959.

The nebula is thought to be produced by the bluish star just above the dense red portion in the left center in this image. It is a Wolf-Rayet star designated as WR128 (HD 187282). The very difficult to process bright yellow star that dominates the left side of the image is δ-Sge. SH2-84 lies close to much more impressive object like M27 and M71 which may be why it is not imaged much, in fact there is only one other entry in Astrobin at this time.

There are several blue, white, yellow, and red stars in this image, however, I suspect many of the stars appear reddish because of the gas and dust in this region.

Video made during the capture and processing!

Link to SH2-84 Video

Video made during the capture and processing!

Link to E-Nebula Video

N.I.N.A. Users
Imaged with APT
Sharpless2 Objects
Northeast Imagers

All - Most Recent First
Emission Nebula

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	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

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	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

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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	2920071
PixInsight job	IO9SNX688TDQYBA2N4QVANW3ELQ28UK5
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h50m03s.85
RA (top/left)	19h46m36s.26
RA (top/right)	19h52m55s.81
RA (bottom/right)	19h53m32s.65
RA (bottom/left)	19h47m10s.87

Dec (center)	+18°28′34″.5
Dec (top/left)	+18°00′33″.3
Dec (top/right)	+17°49′10″.8
Dec (bottom/right)	+18°56′21″.2
Dec (bottom/left)	+19°07′49″.1

Image Index:

Contribution Index (beta):

SH2-84 - Ha Region in Sagitta

SH2-84 - Ha Region in Sagitta

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

SH2-84 - Ha Region in Sagitta

SH2-84 - Ha Region in Sagitta

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information