SH2-308 The Cosmic Bubble (Roland Schliessus)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · HD50212 · HD50304 · HD50465 · HD50492 · HD50563 · HD50591 · HD50646 · HD50679 · HD50680 · HD50740 · HD50781 · HD50804 · HD50896 · HD51013 · HD51034 · HD51036 · HD51087 · HD51112 · HD51113 · HD51176 · HD51229 · HD51407 · HD51550 · LBN 1052 · Sh2-308 · The star Udra (ο1 CMa

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SH2-308 The Cosmic Bubble

Link: http://www.roland-schliessus-astro.de/

Powered byPixInsight

SH2-308 The Cosmic Bubble

Link: http://www.roland-schliessus-astro.de/

North left up

Sh2-308, also designated as Sharpless 308, RCW 11, or LBN 1052 is an H II region located near the center of the constellation Canis Major, composed of ionised hydrogen. It is about 8 degrees south of Sirius, the brightest star in the night sky. The nebula is bubble-like, surrounding a Wolf–Rayet star named EZ Canis Majoris. This star is in the brief, pre-supernova phase of its stellar evolution. The nebula is about 4,530 light-years (1,389 parsecs) away from Earth, but some sources indicate that both the star and the nebula are up to 5,870 ly (1,800 pc) away. Yet others indicate the nebula is as close as 1,875 ly (575 pc) from Earth.

============ Data source: Wikipedia =====================

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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
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Star trails
Northern lights
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Distribution of data sources

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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.
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	6680803
PixInsight job	92HDXKD372TEW8WZGO5E8UW28LBUYO5O
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m11s.349
RA (top/left)	06h53m29s.395
RA (top/right)	06h50m51s.508
RA (bottom/right)	06h54m53s.789
RA (bottom/left)	06h57m31s.393

Dec (center)	-23°55′54″.15
Dec (top/left)	-23°11′00″.12
Dec (top/right)	-23°52′44″.62
Dec (bottom/right)	-24°40′47″.58
Dec (bottom/left)	-23°58′45″.68

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SH2-308 The Cosmic Bubble

SH2-308 The Cosmic Bubble

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SH2-308 The Cosmic Bubble

SH2-308 The Cosmic Bubble

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