Dolphin Head Nebula (Sh2-308) (AstroDinsk)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · LBN 1052 · Sh2-308 · The star Udra (ο1 CMa

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Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

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Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

The Dolphin Head Nebula (Object Sh2-308) is a huge ball of gas spanning more than 60 light-years. It is a structure blown by stellar wind particles from the blue Wolf-Rayet star at the center of the nebula. It is located at a distance of 5000 light years from us in the constellation Canis Major. If it could be seen with the naked eye, it would occupy as much space in the sky as the full Moon.

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Title: Rev 2

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Objects of the South - negative declination only
ZWO ASI2600MC DUO
Suburban Astrophotography
Nebula Photos Monthly Challenge
Askar 107PHQ 107mm f/7 Quadruplet
Sharpless2 Objects
Duo-band, Tri-band, and Quad-band Imaging
The refractors!
ZWO AM5
AAA : Astronomes et Astrographes Amateurs
Cooled Color Cams

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.

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	9065237
PixInsight job	IR34LP1ZHOY2KFQI7XFOPZDRN81XG6B3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m22s.20
RA (top/left)	06h51m19s.53
RA (top/right)	06h53m03s.96
RA (bottom/right)	06h57m25s.84
RA (bottom/left)	06h55m39s.66

Dec (center)	-23°57′08″.3
Dec (top/left)	-23°38′05″.0
Dec (top/right)	-24°39′32″.0
Dec (bottom/right)	-24°15′59″.9
Dec (bottom/left)	-23°14′42″.7

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Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

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Image Index:

Contribution Index (beta):

Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

Dolphin Head Nebula (Sh2-308)

Revision title: Rev 2

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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