Whirlpool Galaxy

by smb_flickr | May 15, 2008 at 12:12 pm | 293 views | add comment
Whirlpool Galaxy by smb_flickr

M51 and NGC5195, two galaxies in Canes Venatici, taken with Celestron C6-N, 20mm. eyepiece, ISO200, 15" of exposure and 3x optical zoom.

ENGLISH
Third astrophotographic session. Not yet I dominate the focus, and the sky was very luminous because the artificial illumination and an almost full moon.

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The Whirlpool Galaxy (also known as Messier 51a, M51a, or NGC 5194) is an interacting grand-design spiral galaxy located at a distance of approximately 23 million light-years in the constellation Canes Venatici. It is one of the most famous spiral galaxies in the sky. The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars.[6] The Whirlpool Galaxy is also a popular target for professional astronomers, who study it to further understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions.

The Whirlpool Galaxy was discovered by Charles Messier on October 13, 1773. Its companion galaxy, NGC 5195, was discovered in 1781 by Pierre Méchain. It was not until 1845 that the Whirlpool Galaxy became the first to be recognized as a spiral. This was achieved by Lord Rosse using a 72 inch reflecting telescope he had constructed at Birr Castle, Ireland. In 2005 a supernova (SN 2005cs) was observed in the Whirlpool Galaxy, peaking at apparent magnitude 14. Sometimes M51 is used to refer to the pair of galaxies, in which case the individual galaxies may be referred to as M51A (NGC 5194) and M51B (NGC 5195).

More info: en.wikipedia.org/wiki/Whirlpool_Galaxy

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CASTELLANO
Tercera sesión astrofotográfica. Aún no domino el enfoque, y el cielo estaba demasiado luminoso por la contaminación lumínica de las farolas y por una luna casi llena.

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La Galaxia Remolino (también conocida como Objeto Messier 51, Messier 51, M51 o NGC 5194) es una clásica galaxia espiral localizada en la constelación Canes Venatici (perro cazador). Fue descubierta por Charles Messier el 13 de octubre de 1773.

La Galaxia Remolino es una de las más brillantes galaxias del firmamento, visible con unos simples binoculares. La estructura de galaxia en espiral fue observada por primera vez en esta galaxia, que es el miembro dominante del grupo de galaxias M51.

Su galaxia acompañante, NGC 5195, fue descubierta en 1781 por Pierre Méchain. Algunas veces el término M51 se usa para referirse a este par de galaxias, en cuyo caso las galaxias individuales deben ser denominadas M51A (NGC 5194) y M51B (NGC 5195). Esta galaxia se encuentra a menos de 37 millones de años luz de la Tierra, aunque algunas mediciones rebajan esta cifra a sólo 15 millones de años luz.

Más info: es.wikipedia.org/wiki/M51

Uploaded by smb_flickr | May 15, 2008 at 12:12 pm | 293 views | add comment

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Photo Properties

NP! ID: 965776
Title: Whirlpool Galaxy
Created: Thu, 05/15/2008 - 12:12pm
File Type: image (jpeg)
Modified: Thu, 05/15/2008 - 12:12pm
File Size: 2048 × 1536 – 801.05 KB

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