M63 The Sunflower and surroundings - LRGB & Halpha (Mathieu Guinot)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 63 · NGC 5055 · Sunflower Galaxy

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M63 The Sunflower and surroundings - LRGB & Halpha

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M63 The Sunflower and surroundings - LRGB & Halpha

The famous Sunflower Galaxy, Messier 63 (or NGC 5055), is a spiral galaxy located about 29 millions light-years away in the northern constellation of Canes Venatici.
The shape or morphology of this galaxy has a classification of SAbc, indicating a spiral form with no central bar (SA) and moderate to loosely wound arms (bc).
As there is a general lack of large-scale continuous spiral structure in visible light, it is considered a flocculent galaxy. However, when observed in the near infrared, a symmetric two-arm structure is seen with each arm wrapping 150° around the galaxy and extending out to 13,000 light-years from the nucleus.

The halo feature around M63 is consistent with a giant stellar stream that originated from the accretion of a dwarf satellite sometime within the last 5 billion years.

There is quite a lot of galaxies and galaxy clusters in the area!

Backyard

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	5756986
PixInsight job	1RFEFRZDSDLQV2MU9MYW05NIM3MY26WM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h15m48s.687
RA (top/left)	13h19m29s.577
RA (top/right)	13h12m13s.322
RA (bottom/right)	13h12m10s.737
RA (bottom/left)	13h19m21s.970

Dec (center)	+42°01′47″.62
Dec (top/left)	+42°27′01″.50
Dec (top/right)	+42°28′35″.39
Dec (bottom/right)	+41°36′07″.20
Dec (bottom/left)	+41°34′34″.30

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Contribution Index (beta):

M63 The Sunflower and surroundings - LRGB & Halpha

M63 The Sunflower and surroundings - LRGB & Halpha

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Image Index:

Contribution Index (beta):

M63 The Sunflower and surroundings - LRGB & Halpha

M63 The Sunflower and surroundings - LRGB & Halpha

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these collections

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