Region of the BLAZAR 3C 66A (north of NGC 891) (gigiastro)

Celestial hemisphere: Northern · Constellation: Andromeda (And)

Region of the BLAZAR 3C 66A (north of NGC 891)

BLAZAR 3C 66A; UGC 1832 - UGC 1837 - UGC 1841

"...Blazars are (...) galaxies with active galactic nuclei (AGNs)

powered by actively feeding black holes. As heated material spirals

down the accretion disk surrounding an AGN, an intense magnetic field

helps produce high-energy, relativistic plasma jets (...).

What makes a blazar special is that one of its beams happens to point

directly toward us. From our head-on perspective looking down the throat

of its jet, a blazar appears much brighter than it normally would.

Changes in the jet result in variability in radio, infrared, optical, X-ray,

and gamma-ray wavelengths. In some cases, short-term outbursts of several

magnitudes have been recorded over just a few days."

(SKY & TELESCOPE • April 2010, page 71)

"In 1974 Texas astronomers Beverley and Derek Wills identified the radio source

3C 66A as a high-redshift quasar (z = 0.44, distance 4.6 billion light-years).

This blazar shows rapid fluctuations as well as long-term changes from magnitude

13.5 to 15.6. (....) Coincidentally, 3C 66A lies behind the rich galaxy cluster

AGC 347 in Andromeda and shares a field with three foreground cluster galaxies (...)."

(SKY & TELESCOPE • April 2010, page 74)

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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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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
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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	Basic success
Started	...
Astrometry.net job	3055864
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Region of the BLAZAR 3C 66A (north of NGC 891)

Region of the BLAZAR 3C 66A (north of NGC 891)

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Image Index:

Contribution Index (beta):

Region of the BLAZAR 3C 66A (north of NGC 891)

Region of the BLAZAR 3C 66A (north of NGC 891)

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Comments

Revisions

B

Sky plot

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