Apr 29, 2025
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Spiral's Cold Gas
TRIPLETE DE LEO
Esta noche nos asomamos a un trío muy distinguido en la constelación de Leo. Se trata de tres galaxias espirales situadas a 30 millones de AL de casa.
M 66 es la más brillante de las tres. Se han apreciado regiones de intensa formación estelar y a causa de la interacción gravitatoria con las galaxias vecinas se registra una tasa de formación de supernovas muy alta (3 desde 1989).
M 65 es una espiral muy similar a nuestra galaxia, ubicada a solo 200.000 AL de M 66.
NGC 3628 también es una espiral, aunque se observa de forma distinta por estar de canto.
Las tres bailan entre sí al son de la orquesta de la gravedad, en una danza de millones de años que las deforma y que acabará por fusionarlas o deshacerlas.
El triplete de Leo, a pesar de la distancia a la que se encuentra, se ve bien con telescopios modestos en cielos oscuros. Sin embargo, en la ciudad, como es este caso, hay que recurrir a la astrofotografía para poder apreciarlas bien.
Refractor TS Photoline 72 mm a f6. Cámara imx 294.
Procesado con Risingsky y Startools.
Spiral’s Ionised Gas
Wide-Field Spiral
Leo Triplet Member Close-Up
Hubble Snaps Heavyweight of the Leo Triplet by NASA Goddard Photo and Video on Flickr.
Via Flickr: Image Release April 8, 2010 Hubble has snapped a spectacular view of M 66, the largest "player" of the Leo Triplet, and a galaxy with an unusual anatomy: it displays asymmetric spiral arms and an apparently displaced core. The peculiar anatomy is most likely caused by the gravitational pull of the other two members of the trio. The unusual spiral galaxy, Messier 66, is located at a distance of about 35 million light-years in the constellation of Leo. Together with Messier 65 and NGC 3628, Messier 66 is the member of the Leo Triplet, a trio of interacting spiral galaxies, part of the larger Messier 66 group. Messier 66 wins in size over its fellow triplets — it is about 100 000 light-years across. This is a composite of images obtained through the following filters: 814W (near infrared), 555W (green) and H-alpha (showing the glowing of the hydrogen gas). They have been combined so to represent the real colours of the galaxy. Credit: NASA, ESA and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration. Acknowledgement: Davide De Martin and Robert Gendler