Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th (Dan Bartlett)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: Solar system body or event

Powered byPixInsight

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Powered byPixInsight

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Closest approach to globular star cluster M9 is seen through a C14 Hyperstar and an APS-C sensor. One day prior to perihelion, comet C/2021 S3 PanSTARRS is hovering at the 10th magnitude mark. A very crowded Milky Way field can be viewed with to moderately bright Globular clusters also visible.

Observational details:
Backyard setup
scope: C14 HyperStar = 356mm; fl =729mm;
exposure: 30 x 90 sec
Seeing: 4/5
Transparency 6/10
Observer: DEBartlett
Place: June Lake_California USA

Projection ............... Gnomonic
Projection origin ........ [1526.466482 1006.793800] px -> [RA: 17 21 03.192 Dec: -18 13 25.54]
Resolution ............... 2.128 arcsec/px
Rotation ................. -5.875 deg
Reference system ......... ICRS
Observation start time ... 2024-02-13 13:44:09 UTC
Observation end time ..... 2024-02-13 13:45:39 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 728.97 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 48' 14.0" x 1d 11' 23.3"
Image center ............. RA: 17 21 03.192 Dec: -18 13 25.54 ex: +0.008700 px ey: -0.002844 px
Image bounds:
top-left .............. RA: 17 24 33.198 Dec: -17 32 24.07 ex: -1.156195 px ey: -1.142034 px
top-right ............. RA: 17 17 02.169 Dec: -17 43 19.99 ex: +0.108765 px ey: -1.080099 px
bottom-left ........... RA: 17 25 05.350 Dec: -18 43 15.78 ex: -1.243006 px ey: +0.101639 px
bottom-right .......... RA: 17 17 31.314 Dec: -18 54 15.87 ex: +0.124159 px ey: +0.236592 px

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	9242095
PixInsight job	QRBDY2B7PNJ16HYCCH48WSW5EUIM206N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h21m03s.12
RA (top/left)	17h24m33s.40
RA (top/right)	17h17m02s.46
RA (bottom/right)	17h17m31s.25
RA (bottom/left)	17h25m05s.61

Dec (center)	-18°13′26″.6
Dec (top/left)	-17°32′20″.2
Dec (top/right)	-17°43′05″.5
Dec (bottom/right)	-18°54′16″.6
Dec (bottom/left)	-18°43′15″.7

Image Index:

Contribution Index (beta):

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Large Scope Image, Closest Approach of Comet C/2021 S3 PanSTARRS to Globular Cluster M9 Feb 13th

Equipment

Acquisition details

Description

Comments

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

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information