Whirlpool Galaxy (Bruce)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 51 · NGC 5194 · NGC 5195 · Whirlpool galaxy

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Whirlpool Galaxy

Link: http://www.meadowlarkridgeobservatory.com/whirlpool-galaxy/

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Whirlpool Galaxy

Link: http://www.meadowlarkridgeobservatory.com/whirlpool-galaxy/

Located between the constellations of Ursa Major and Canes Venatici lies the Whirlpool Galaxy. What you are looking at however is actually two galaxies. The “upper” part – is actually a companion galaxy (NGC 5195). Although they appear to be connected they are not. NGC 5195 is actually floating behind M51 and has been for hundreds of millions of years. This smaller galaxy has a profound effect on M51 using its gravitational muscle to create waves of gaseous material which eventually turns into star forming regions evident by the colorful magenta areas between the two galaxies.

The Whirlpool galaxy is 60 thousand light years across. Distance estimates vary between 15 and 35 million light years from earth. It was discovered in 1773 by Charles Messier while its companion galaxy was discovered in 1781 by Pierre Mechain.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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.

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Astrometry.net job	572342
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Whirlpool Galaxy

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Whirlpool Galaxy

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