The nearest Quasar to Earth is Markarian 231 in the constellation of Ursa Major.

The Milky Way was believed to have been a Quasar once but is currently quiet.

The difference between a Quasar and a Blazar is how it is angled towards us.

A Quasar is an Active Galactic Nuclei, it is the centre of a galaxy that is shooting out a stream of particles from the centre.

Quasar and Blazars are not stars, they are a type of galaxy.

A Quasar will have a stream of particles being ejected out of the galaxy, if it didn't, it'd be a normal galaxy Some Quasars that have been studied were formed not long after the big bang and are many years older than 3C273. One of the nearest Quasar is 3C273, it is 2.5 billion light-years away in the constellation of Virgo. If we were to travel to those galaxies and see how they look today, they would probably be calm, and like any other galaxy, their streams would not be active. Quasars tend to be at the centres of galaxies far far away.Īll the Quasars we can see, albeit with the aid of a telescope, are billions of light-years away, leading scientists to believe that they are young galaxies. Once the accretion disk is used up, they become passive. Quasars tend to have accretion discs of gas and dust when material from the disc falls into the quasar, they are ejected as electromagnetic radiation. Quasars are large supermassive black holes at the centre of a galaxy that is so active, that it tends to outshine the stars in the galaxy. Both are starlike in appearance, and both are outside our galaxy. An object may or may not have a radio source. On the other hand, Radio Sources will also have a strong radio source.

There are also Quasi-Stellar Objects (QSO) which are like Radio (QSR) sources except that Objects have a large redshift in their optical spectrum. It is now thought that at one time, the centre of the Milky Way was a Quasar before it became inactive like it is today.

The centre of the Milky Way is reputed to be just a supermassive black hole and not a quasar. Quasars full name is QUASi-StAllar Radio object. A Quasar is just one of a number of different Active Galactic Nuclei which also include Blazars, Radio Galaxies and Seyfert Galaxy.

Quasar vs pulsar game 4x