Quasar
A quasar is an extremely luminous active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto a supermassive black hole with a mass ranging from millions to tens of billions of solar masses, surrounded by a gaseous accretion disc. Gas in the disc falling towards the black hole heats up and releases energy in the form of electromagnetic radiation. The radiant energy of quasars is enormous; the most powerful quasars have luminosities thousands of times greater than that of a galaxy such as the Milky Way. Quasars are usually categorized as a subclass of the more general category of AGN. The redshifts of quasars are of cosmological origin.
Quick facts
- Type
- Parks
- Location
- Harlow
- Coordinates
- 51.76899, 0.09482
Nearby
Within 500m: 26 cafes, 0 restaurants, 68 businesses, 2 other places , 1 hotels
Within 1000m: 27 cafes, 0 restaurants, 86 businesses, 4 other places , 1 hotels
Within 2000m: 50 cafes, 0 restaurants, 205 businesses, 10 other places , 3 hotels
Sources
Map data © OpenStreetMap contributors
More places nearby
- Church Langley (Samian Ware Discovery Site) · Historic
- Gibberd Gallery · Culture
- Harlow · Historic
- Harlow (Samian Ware Discovery Site) · Historic
- Harlow Marsh · Parks
- Harlow Mill · Historic
Where to eat nearby
Food businesses within approximately 1 km.