gingadan.com

3C 273 (Quasar)


Home > Black Hole > 3C273
Down
Movie

3C 273
Quasar (クエーサー)

星座 (Constellation)
おとめ座 (Vir) (Virgo)

距離 (Distance)
25億光年 (2.5 billion light-years)

3C 273 is a quasar located 2.5 billion light years from the Earth in the constellation Virgo.

3C 273 (Quasar) : Picture

3C 273 (Quasar)
3C 273 (Quasar)
(C) NASA

Bright Quasar 3C 273
NASA's Hubble Gets the Best Image of Bright Quasar 3C 273
(C) NASA/ESA
This image from Hubble’s Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation of Virgo. Its light has taken some 2.5 billion years to reach us. Despite this great distance, it is still one of the closest quasars to our home. It was the first quasar ever to be identified, and was discovered in the early 1960s by astronomer Allan Sandage.

The term quasar is an abbreviation of the phrase "quasi-stellar radio source," as they appear to be star-like on the sky. In fact, quasars are the intensely powerful centers of distant, active galaxies, powered by a huge disc of particles surrounding a supermassive black hole. As material from this disk falls inwards, some quasars, including 3C 273, have been observed to fire off super-fast jets into the surrounding space. In this picture, one of these jets appears as a cloudy streak, measuring some 200,000 light-years in length.

Quasars are capable of emitting hundreds or even thousands of times the entire energy output of our galaxy, making them some of the most luminous and energetic objects in the entire Universe. Of these very bright objects, 3C 273 is the brightest in our skies. If it was located 30 light-years from our own planet — roughly seven times the distance between Earth and Proxima Centauri, the nearest star to us after the sun — it would still appear as bright as the sun in the sky.
Up
Up

3C 273 (Quasar) : Movie

3C273
Up
Home > Black Hole > 3C273
Up

gingadan.com ブログパーツ