3C 273 lies at the center of a giant elliptical galaxy with an apparent magnitude of 16 and an apparent size of 29 arcseconds. The morphological classification of the host galaxy is E4, [17] indicating a moderately flattened elliptical shape. The galaxy has an estimated mass of ~ …

3C 273类星体距离地球大约有20亿光年，实现类星体的距离的直接测量，为解决“哈勃常数危机”提供了新的方法，未来也将在精确测量宇宙几何，研究宇宙膨胀速度和历史方面提供帮助。 [2] 3C 273是位于室女座的一个类星体。 它在可见光波段上是最明亮的一个类星体，在天空中的视星等大约是12.9等，是最靠近地球的类星体之一，红移z只有0.158。 它的光度距离，DL = 24.4亿光年（749 Mpc）是经由z值换算的。 它也是最明亮的类星体之一，绝对星等为-26.3等。 通过对它 …

Quasar 3C 273 is the first quasar redshift spectrum to be identified by Dr. Maarten Schmidt in 1963 with the Hale 200 inch (5.08 m) reflector at the Palomar Observatory. 3C_273 light travel-time is 1.98 Gyr based on H o = 73.00 km/sec/Mpc, Omega matter = …

2021年2月19日 · Roughly 885 million times the mass of the Sun. Diameter roughly equal to the size of our solar system. Seen through a decent backyard telescope, 3c273 is a puny sight. It looks like a faint star in the constellation Virgo.

2024年1月1日 · On images taken through large telescopes, its angular size is 23″. Observing 3C 273 is a lot like observing Pluto. In both cases, you’ll only see a faint point of light, but the …

More detailed studies revealed that the mass of 3C273 is nearly 109M . Given the large mass and small size, the quasar 3C273 must be a black hole and the strong radiation is powered by accretion. To estimate the energy release when matter falls into a black hole, we first estimate the Schwarzschild radius.

The maximum size of the varying region is defined as the amount of time it takes for light to travel during the course of the variation -- in this case, a few light months at most. This shows that the central engine of 3C 273 (and indeed all quasars) is small, much less than one parsec in …

2024年12月5日 · Dimensions The physical size of the object or the apparent angle it subtends on the sky. Image is 0.7 arcmin across (about 500,000 light-years) About the Data. Data Description. Data Description Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.

Spectra of the star were taken with the prime-focus spectrograph at the 200-in. telescope with dispersions of 400 and 190 A per mm. They show a number of broad omission features on a rather blue...

The bright quasar 3C 273 is one of the best studied active galactic nuclei (AGN) in all spectral bands. The aim of this site is to provide a consistent and as complete as possible database of observations to study the long-term variability of the source across the electromagnetic spectrum.