M1 Crab Nebula (Steve Spring)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Crab nebula · LBN 833 · M 1 · NGC 1952 · Sh2-244

Powered byPixInsight

M1 Crab Nebula

Powered byPixInsight

M1 Crab Nebula

For three weeks in 1054, appeared a second star to our sun, visible during the day. Recorded by Chinese astronomers as a 'guest star' with evidence that it was also witnessed in Japan, Korea and Baghdad.

700 years later in 1758, Charles Messier was anticpating the return of Halleys Comet. Whilst seaching the sky for the comet, Messier happened across an object of a cloudy nature which he at first mistook for the comet. Realising that the object he was observing was fixed in the sky, he embarked upon creating the 'Messier Catalogue', documenting objects that could be mistaken for comets. This first object of 110, he categorised as M1.

In the early twentieth century, the analysis of early photographs of the M1 'cloud' taken several years apart revealed that it was expanding. Tracing the expansion backwards, it was calculated to have become visible from earth some 900 years previous. In 1928, amongst others, Edwin Hubble proposed associating M1 with the star of 1054, an idea that remained controversial until the nature of supernovae was understood.

The 'guest star' that was witnessed in 1054 is almost certainly the light emitted from the progenitor star exploding 6500 light years from Earth an event now known as SN1054. The object we see now is the remnant of this exploded star which now spans 6 light years across.

In 1968, the collaped star at the heart of M1 was found to be emitting radiation in rapid pulses, becoming one of the first pulsars to be discovered. In the case of M1, the neutron star at the centre has the mass of 1.4 times our own sun, is only the size of a city, and rotates every 30 seconds.

M1 has provided astronomy with a multidude of firsts and is magnificent.

Final
Original
B

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	5316075
PixInsight job	9HHLD4UN1DXT16318UQKVWU89RKR8U7D
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m32s.871
RA (top/left)	05h33m35s.520
RA (top/right)	05h33m33s.287
RA (bottom/right)	05h35m30s.560
RA (bottom/left)	05h35m32s.721

Dec (center)	+22°00′59″.99
Dec (top/left)	+22°15′35″.20
Dec (top/right)	+21°46′55″.49
Dec (bottom/right)	+21°46′22″.95
Dec (bottom/left)	+22°15′03″.30

Image Index:

Contribution Index (beta):

M1 Crab Nebula

M1 Crab Nebula

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M1 Crab Nebula

M1 Crab Nebula

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

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?

Delete this revision?

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