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Markarian 421

Markarian 421 (Mrk 421, Mkn 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 (redshift: z=0.0308 eq. 122Mpc) to 434 million light-years (133Mpc) from the Earth. It is one of the closest blazars to Earth, making it…

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Apparent magnitude (V)
12.9 (SIMBAD) 13.3 (NED) 11.6-16 (B Band)
Constellation
Ursa Major
Declination
+38° 12′ 31.80″
Distance
397-434 million light-years (122-133 Mpc)
Redshift
0.030021
Right ascension
11h 04m 27.314s

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Markarian 421

Nodes17
Edges16
Triples26
Avg. degree1.88
Density0.117647
Components1

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Markarian 421

Top relations

related to External links · 19
Markarian 421 → Andrea, Articles, Astrophoto, DSS2, GALEX, Hydrogen, ICRC2021, International Cosmic Ray Conference, IRAS, Markarian, MRK, Multi-wavelength, PoS, Proceedings, SDSS, Sky Map, TeV, WikiSky, X-Ray
Apparent magnitude (V) · 1
Markarian 421 → 12.9 (SIMBAD) 13.3 (NED) 11.6-16 (B Band)
Constellation · 1
Markarian 421 → Ursa Major
Declination · 1
Markarian 421 → +38° 12′ 31.80″
Distance · 1
Markarian 421 → 397-434 million light-years (122-133 Mpc)
Redshift · 1
Markarian 421 → 0.030021
Right ascension · 1
Markarian 421 → 11h 04m 27.314s
Type · 1
Markarian 421 → BL LAC

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Important terminology

421 markarian earth light-years gamma million also blazar mrk sky located object active galaxy rays due high whipple observatory outburst

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Markarian 421Apparent magnitude (V)12.9 (SIMBAD) 13.3 (NED) 11.6-16 (B Band)1.00infobox
Markarian 421ConstellationUrsa Major1.00infobox
Markarian 421Declination+38° 12′ 31.80″1.00infobox
Markarian 421Distance397-434 million light-years (122-133 Mpc)1.00infobox
Markarian 421Redshift0.0300211.00infobox
Markarian 421Right ascension11h 04m 27.314s1.00infobox
Markarian 421TypeBL LAC1.00infobox
Markarian 421related to External linksMarkarian0.60section
Markarian 421related to External linksWikiSky0.60section
Markarian 421related to External linksDSS20.60section
Markarian 421related to External linksSDSS0.60section
Markarian 421related to External linksGALEX0.60section

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