.. Under Construction .. please be patient ..

Markarian 421

Active Galaxy Markarian 421 (UGC 6132), type S?, blazar, in Ursa Major

[Mrk 421, NOT]
Right Ascension 11 : 01.7 (h:m)
Declination +38 : 29 (deg:m)
Distance (kly)
Visual brightness 13.3 (mag)
Apparent Dimension 0.8 x 0.6 (arc min)

This galaxy is probably the nearest BL Lacertae objects (blazars), and thus one of the brightest quasars.

The image in this page was obtained by Aimo Sillanpaa with the Nordic Optical Telescope (NOT).

  • NED data for Markarian 421
  • Markarian 421, the Brightest Known TeV Gamma-Ray Blazar, by John Mattox (WEBT project)
  • Markarian 421 across the spectrum, by Bill Keel
  • Whipple Observations of Mrk 421 (from High Energy Astrophysics at FLWO)
  • Active Galaxy Markarian 421 by Michael Oates (Manchester Astronomical Society)

    .. more to come soon ..

    [Constellations] | [SEDS] | [MAA]

    Hartmut Frommert
    Christine Kronberg