M33 Triangulum Galaxy (photonjunkie)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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M33 Triangulum Galaxy

Acquisition type: Lucky imaging

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M33 Triangulum Galaxy

Acquisition type: Lucky imaging

M33 - The Triangulum Galaxy - The “smallest” of its kind in our local galaxy group.

The Triangulum Galaxy (M33) is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum. Although this galaxy is the smallest within our local group, it’s still a massive 60k light-year diameter, which is roughly 3 times smaller than our Milky Way (100k light-year diameter).

This image was taken over 3 successive clear nights in September 2021. It has a total exposure time of 9.1 hours and was shot from the center of the light-polluted area in Zurich City, Switzerland. Using a technique that incorporates high gain, short exposures, and very large image stacks (1710 times 10 second exposures), I was able to reduce noise by a factor of roughly 40x. Using this technique, acceptable results are also possible from very light-polluted areas.

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	4988884
PixInsight job	6TZ62VZD7AWSNFI4B5GTWAX2KNJD5H5T
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h33m54s.45
RA (top/left)	01h33m44s.64
RA (top/right)	01h37m16s.52
RA (bottom/right)	01h34m04s.37
RA (bottom/left)	01h30m32s.75

Dec (center)	+30°39′51″.7
Dec (top/left)	+29°55′45″.9
Dec (top/right)	+30°47′33″.3
Dec (bottom/right)	+31°23′56″.6
Dec (bottom/left)	+30°31′50″.6

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M33 Triangulum Galaxy

M33 Triangulum Galaxy

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Image Index:

Contribution Index (beta):

M33 Triangulum Galaxy

M33 Triangulum Galaxy

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