Taylor
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"I am wiser than this man; it is likely that neither of us knows anything worthwhile, but he thinks he knows something when he does not, whereas when I do not know, neither do I think I know; so I am likely to be wiser than he to this small extent, that I do not think I know what I do not know." - Socrates (25d of Apology).



NGC 660Distance: 20 Million Light YearsConstellation: Pisces
"NGC 660 is a Polar Ring Galaxy, an unusual type of galaxy which has an outer population of stars, gas, and dust orbiting nearly perpendicular to the main disk of the galaxy. Essentially polar ring galaxies have two distinct systems, the host galaxy and the polar ring. It has been known for some time that the polar ring contains more gas than the host galaxy so it has been assumed to be a structure younger than the host galaxy. The current theory is that polar rings form when two galaxies interact but do not collide. The ring is acquired in a tidal gas accretion event as gas and stars are stripped from one of the interacting galaxies, ultimately forming an orbiting ring structure around the host galaxy. It has been shown that star formation can occur independently within the polar ring giving rise to generations of younger stars and their nebulae. In the Hubble image HII clouds can be seen within the ring which is nearly perpendicular to the host galaxy’s disk."
Astrophotography by Robert Gendler.

NGC 660
Distance: 20 Million Light Years
Constellation: Pisces

"NGC 660 is a Polar Ring Galaxy, an unusual type of galaxy which has an outer population of stars, gas, and dust orbiting nearly perpendicular to the main disk of the galaxy. Essentially polar ring galaxies have two distinct systems, the host galaxy and the polar ring. It has been known for some time that the polar ring contains more gas than the host galaxy so it has been assumed to be a structure younger than the host galaxy. The current theory is that polar rings form when two galaxies interact but do not collide. The ring is acquired in a tidal gas accretion event as gas and stars are stripped from one of the interacting galaxies, ultimately forming an orbiting ring structure around the host galaxy. It has been shown that star formation can occur independently within the polar ring giving rise to generations of younger stars and their nebulae. In the Hubble image HII clouds can be seen within the ring which is nearly perpendicular to the host galaxy’s disk."

Astrophotography by Robert Gendler.

11 notes
Friday Mar 3 @ 12:00pm
tagged as: astrophotography. astronomy. NGC 660. Pisces.

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