Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02 (Dan Bartlett)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Solar system body or event

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Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

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Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

Five nights of data watching, 11th magnitude, comet C/2021 S3 Pan-STARRS travel through the dust and gas rich background of Cygnus. Here is night 4 of this travelog from a "close-in" perspective. The comet's tail seem to travel through the propeller nebula during this 3.5 hour stacking. However the two bladed "propeller" of gas is highly obscured due to the richness of the surrounding Cygnus Milky Way. This comet image was actually a joy to process owing to the abundance of data, usually not afforded when capturing comets.

Observational details:
Backyard setup
scope: C14 HyperStar fl728mm D356mm
exposure: 106 x 120 sec
Seeing: 4/5
Transparency 9/10
Observer: DEBartlett
Place: June Lake_California USA

Image Info (Processed images):
Projection ............... Gnomonic
Projection origin ........ [2963.583206 1926.081984] px -> [RA: 20 16 58.926 Dec: +43 45 25.33]
Resolution ............... 1.064 arcsec/px
Rotation ................. -4.151 deg
Reference system ......... ICRS
Observation start time ... 2024-05-02 07:03:24 UTC
Observation end time ..... 2024-05-02 10:58:54 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 51 N 2360 m
Focal distance ........... 729.11 mm
Pixel size ............... 3.76 um
Field of view ............ 1d 45' 4.6" x 1d 8' 17.4"
Image center ............. RA: 20 16 58.926 Dec: +43 45 25.33 ex: -0.048946 px ey: +0.518988 px
Image bounds:
top-left .............. RA: 20 21 37.894 Dec: +44 22 50.87 ex: -0.946881 px ey: -0.652703 px
top-right ............. RA: 20 11 52.961 Dec: +44 15 11.59 ex: +1.941060 px ey: -1.177687 px
bottom-left ........... RA: 20 21 59.661 Dec: +43 14 48.48 ex: -1.078908 px ey: +0.145086 px
bottom-right .......... RA: 20 12 25.735 Dec: +43 07 17.18 ex: +0.859122 px ey: +0.352825 px

Original
B
Final
C

Comets Imaging

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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.

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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.
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Status	Advanced success
Started	...
Astrometry.net job	9802182
PixInsight job	WR9C0UMJLQYOY4PKS42LC7K0455Q5XE7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h16m58s.98
RA (top/left)	20h21m38s.15
RA (top/right)	20h11m52s.88
RA (bottom/right)	20h12m25s.46
RA (bottom/left)	20h21m59s.99

Dec (center)	+43°45′23″.4
Dec (top/left)	+44°22′52″.2
Dec (top/right)	+44°15′13″.0
Dec (bottom/right)	+43°07′16″.7
Dec (bottom/left)	+43°14′47″.4

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Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

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Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

Comet C/2021 S3 Pan-STARRS Bisects the Propeller Nebula, 2024-05-02

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