The star Sirius with surrounding star fields (Miran Brezočnik)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 9 CMa) · 9 alf CMa · Aschere (α CMa · Canicula · HD48625 · HD48870 · HD48900 · HD48915 · HD48999 · HD49166 · Sirius · The star Sirius

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The star Sirius with surrounding star fields

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The star Sirius with surrounding star fields

Sirius, the brightest star in the sky and one of the closest, is situated only about eight light-years away. Even with the fastest spaceship humans have ever made, it would still take 40,000 years to reach Sirius. This star shines in a stunning white-blue hue, boasting a surface temperature of around 10,000 °C.

I captured the image using a refracting telescope Sky Watcher Esprit 100ED and a standard IR/UV filter. The total exposure time for the QHY268C astronomical camera sensor was 32 minutes (64 x 30 s). The sensor cooling was set to -10°C, while the camera operated in Photographic DSO Mode-2CMS, with a gain of 27 and an offset of 20. The ambient temperature was -2°C. The image was processed using PixInsight software. Sky quality was rated as Bortle 4 (SQM 21.62 mag/arcsec2).

Fine Art Astrophotography

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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.
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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	9245690
PixInsight job	WP5X87HHCE0LQ5QM1OZ035GSMMGHN3BS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h45m08s.390
RA (top/left)	06h46m52s.704
RA (top/right)	06h46m55s.545
RA (bottom/right)	06h43m24s.929
RA (bottom/left)	06h43m20s.501

Dec (center)	-16°43′33″.51
Dec (top/left)	-17°27′43″.67
Dec (top/right)	-15°59′41″.22
Dec (bottom/right)	-15°59′12″.96
Dec (bottom/left)	-17°27′18″.37

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The star Sirius with surrounding star fields

The star Sirius with surrounding star fields

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The star Sirius with surrounding star fields

The star Sirius with surrounding star fields

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