M77 and NGC 1055 (Peter Hannah)

Celestial hemisphere: Northern · Constellation: Cetus (Cet) · Contains: M 77 · NGC 1055 · NGC 1068 · NGC 1072

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M77 and NGC 1055

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M77 and NGC 1055

M77 (NGC1068) is the face-on spiral at upper left, while NGC1055 is at lower right. The galaxies are found in the constellation Cetus. North is to the right in this image.

M77 is a Seyfert galaxy, whose extremely bright central region is due to an accretion disk of matter falling towards a supermassive black hole at its centre. The energy source is the same as that of quasars, the difference being that, unlike with a quasar, we can see the host galaxy’s surrounding structure in Seyferts. M77 was the first Seyfert galaxy to be so categorized.

NGC1055 is an edge-on spiral with a prominent dust lane. It is a member of the same group that includes M77. They lie about 50 million light years away.

The small galaxy near the top of the image is NGC1072, another spiral galaxy at mag 14.27, an estimated 370 million ly away.

There are a few other small distant galaxies visible: to upper left of NGC1055 is PGC 1164535 at mag 16.56, 310 million ly away; and at bottom centre is PGC 135658, another spiral at mag 17.26, 370 million ly distant.

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	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
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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
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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.

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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.
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M77 and NGC 1055

M77 and NGC 1055

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M77 and NGC 1055

M77 and NGC 1055

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