The quasars are believed to be the oldest and most distant objects ever detected, quasars are billions of light-years from earth and moving away from us at nearly 80 percent of the speed of light.
Quasars appear to be stars, but they have large red shifts in their spectra indicating that they are receding from the earth at great speeds.
The exact nature of quasars is still unknown, but many believe they are the cores of distant galaxies, the most distant objects yet seen.
Quasars were first identified in 1963 by astronomers at the Palomar Observatory in California.
Most quasars are strong sources of radio energy.
2. An exceptionally powerful, yet very compact extragalactic object, whose exact nature is still uncertain.Observations suggest that quasars may be the hyperactive nuclei of galaxies, while theory indicates that the high luminosity which is 100 to 1,000 times that of normal galaxies, could be associated with a supermassive black hole.
2. A blend of quasi and stellar.
- Quasi: As if; as though; as it were; in a manner sense or degree; having some resemblance to.
- Stellar: Relating to, consisting of, or like a star or stars.
2. A blend of pulse and quasar.
- Pulse: A brief temporary change in a normally constant quantity, e.g. in a voltage, or a series of intermittent disturbances that are regular in form and frequency of occurrence.
- Quasar: A compact object in space, usually with a large red shift indicating extreme remoteness, that emits huge amounts of energy, sometimes equal to the energy output of an entire galaxy.