Comet 21P/ Giacobini-Zinner (G400)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: Sh2-225

Powered byPixInsight

Comet 21P/ Giacobini-Zinner

Powered byPixInsight

Comet 21P/ Giacobini-Zinner

After finishing the Double Cluster in Perseus I wanted to take my chance and shoot Giacobin-Zinner travelling through Auriga that night. This is my first attempt on a comet. Processing here was new terraine with first aligning the comet and the starfield separately and then merging it together with PixelMath in PI. Not quiete happy with the background but with the shape of the stars. The bigger stars are kind of blurry in the final integration and this could be explained with the fact that I did not set the same reference frame in creating the comet-only and star-only integrations.

Original
B
C
D
Final
E

B

Description: The Star Trail Version.

Uploaded: ...

C

Description: Did a complete reprocess. Setting the same reference file for comet_only and stars_only integration helped a lot :-) This version (#7) has a smoother and darker background compared to the very first comet processing version.

Uploaded: ...

D

Description: Darkened the background to remove startrail remnants.

Improved the colors of the starfield.

Sorry for the new version but I could let the matter rest.

Uploaded: ...

E

Description: Darkended the background to again remove some startrail remnants

Uploaded: ...

Comets Imaging

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	2438502
PixInsight job	DO9C5Z3JDA4QZSTSO3E6PHQIBHUU38EO
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h31m21s.70
RA (top/left)	05h38m48s.20
RA (top/right)	05h27m19s.49
RA (bottom/right)	05h23m58s.50
RA (bottom/left)	05h35m15s.34

Dec (center)	+40°26′53″.0
Dec (top/left)	+40°39′49″.10
Dec (top/right)	+41°39′29″.4
Dec (bottom/right)	+40°12′10″.0
Dec (bottom/left)	+39°13′46″.8

Image Index:

Contribution Index (beta):

Comet 21P/ Giacobini-Zinner

Comet 21P/ Giacobini-Zinner

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

Comet 21P/ Giacobini-Zinner

Comet 21P/ Giacobini-Zinner

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

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?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

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