MESSIER M51 & M51B (antoniox65)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4277 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

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MESSIER M51 & M51B

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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MESSIER M51 & M51B

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Situata a una distanza di circa 23 milioni di anni luce dalla Terra, la Galassia Vortice è una delle galassie più luminose del cielo, in virtù non solo delle sue dimensioni apparenti (il diametro angolare è di circa 11,2 minuti d’arco), ma soprattutto dei brillantissimi ammassi di giovani stelle blu, disseminati lungo tutto il percorso dei suoi bracci a spirale.

Nota anche come Messier 51 (M51) o NGC 5194, fu scoperta da Charles Messier il 13 ottobre 1773.

Quella macchia color beige, parzialmente coperta dal lungo braccio di spirale di M51 (con il quale interagisce) è un’altra galassia. Si chiama NGC 5195 (o M51b), più piccola e meno luminosa. Fu individuata solo otto anni dopo, nel 1781, da Pierre Méchain. La struttura a spirale di M51 fu invece osservata per la prima volta molto più tardi, nel 1845, da Lord Rosse (William Parsons, terzo conte di Rosse), che ne disegnò un inequivocabile schizzo.

Located at a distance of about 23 million light years from Earth, the Vortex Galaxy is one of the brightest galaxies in the sky, not only by virtue of its apparent size (the angular diameter is about 11.2 arc minutes), but above all of the very bright clusters of young blue stars, scattered along the entire path of its spiral arms.

Also known as Messier 51 (M51) or NGC 5194, it was discovered by Charles Messier on 13 October 1773.

That beige spot, partially covered by the long spiral arm of M51 (with which it interacts) is another galaxy. It is called NGC 5195 (or M51b), smaller and less bright. It was identified only eight years later, in 1781, by Pierre Méchain. The spiral structure of M51 was instead observed for the first time much later, in 1845, by Lord Rosse (William Parsons, third Earl of Rosse), who drew an unequivocal sketch of it.

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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.
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Status	Advanced failed
Started	...
Astrometry.net job	5822201
PixInsight job	3ZF547JQMK5ZO84PLEEKUM6LZV4OVMXQ
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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MESSIER M51 & M51B

MESSIER M51 & M51B

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MESSIER M51 & M51B

MESSIER M51 & M51B

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