Helping Hand Nebula (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: LBN 643 · LDN 1353 · LDN 1355 · LDN 1357 · LDN 1358 · RZ Cas · SU Cas

Image of the day 06/12/2022

Powered byPixInsight

Helping Hand Nebula

Image of the day 06/12/2022

Powered byPixInsight

Helping Hand Nebula

This image shows a marvelous and busy area in the constellation Cassiopeia. It contains a large amount of dust, several dark nebula and several reflection nebula along with two interesting stars. In the center is the star SU Cassiopeiae which is a Cepheid variable at Mag 5.94. SU Cass is a Yellow giant with a spectral class of F5:lb-11. It's 19 times larger than our sun. SU Cass lies 1289 light years distant. Surrounding it is the blue reflection nebula VdB 9 which is lit up by SU Cass. The blue wisps extend quite a ways around this area. The other interesting star in the Upper center is the star RZ Cassiopeiae. RZ Cass is a white A3V main sequence star at mag 6.26. It's an eclipsing variable star which is 219 light years distant. The bluish nebulosity surrounding it is listed as VdB 7. However RZ Cass is apparently not the source to light up VdB 7 but another smaller 11th mag star nearby. Several dark nebula are in the Center of the image. The upper part of this nebula looks like an opened hand, hence the nickname (The helping hand). The dark area of the hand, near the top finger is designated as LDN 1357 and below it near the palm, LDN 1355. The long dark area near center right is the dark nebula LDN 1358. Throughout this entire area encompassing the field of view is lots of molecular dust of varying thickness and color.

Southern Hemisphere Astro

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
Artificial satellite

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	...
PixInsight job	7OIJP18086B4M0MQ2067518I6PIS9DAH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h52m12s.56
RA (top/left)	03h06m03s.70
RA (top/right)	02h36m44s.69
RA (bottom/right)	02h39m29s.90
RA (bottom/left)	03h06m43s.58

Dec (center)	+68°53′03″.5
Dec (top/left)	+69°47′42″.1
Dec (top/right)	+69°32′50″.1
Dec (bottom/right)	+67°54′37″.9
Dec (bottom/left)	+68°08′21″.10

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Image of the day 06/12/2022

Helping Hand Nebula

Image of the day 06/12/2022

Helping Hand Nebula

Equipment

Acquisition details

Description

Comments

Acquired at

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Image of the day 06/12/2022

Helping Hand Nebula

Image of the day 06/12/2022

Helping Hand Nebula

Equipment

Acquisition details

Description

Comments

Acquired at

Sky plot

Histogram

In these public groups

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

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information