Markarian 421
id:
markarian-421-257-10197709
title:
Markarian 421
text:
Markarian 421 is a blazar located in the constellation Ursa Major. The object is an active galaxy and a BL Lacertae object, and is a strong source of gamma rays. It is about 397 million light-years to 434 million light-years (133Mpc) from the Earth. It is one of the closest blazars to Earth, making it one of the brightest quasars in the night sky. It is suspected to have a supermassive black hole (SMBH) at its center due to its active nature. An early-type high inclination spiral galaxy is locat
brand slug:
wiki
category slug:
encyclopedia
description:
Blazar located in the constellation Ursa Major
original url:
https://en.wikipedia.org/wiki/Markarian_421
date created:
date modified:
2023-05-14T11:55:27Z
main entity:
{"identifier":"Q201968","url":"https://www.wikidata.org/entity/Q201968"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/1/1f/SDSS_Mrk_421.jpg","width":512,"height":512}
fields total:
13
integrity:
15