Chart example from the "Observing List of Bright Quasars"

Mrk 180

VII Zw 412 = S5 1133+70 = 1ES 133+704 = Q 1133+704 = ZWG 334.43 = PGC 35899 = KHQ 88

A 18

Variable BL Lacertae object in Draco; found 1965 by Zwicky ("red fuzzy spherical compact, in connection with star or very compact spiral"), identified 1978 as BL Lac object. At maximum visible with 10", with larger aperture a diffuse structure can be seen.

Object

(2000): 11 36 26.5 +70 09 28 Dra

Type: variable BL Lac

Redshift: 0.046

Distance: 180 Mpc

Magnitude: 14.5m - 15.5m

Absolute Magnitude: -22.1m

Light traveltime: 0.6 Bill. years

POSS image (5' x 5'), showing the diffuse structure of the BL Lac object (diameter 30").

Interesting nearby objects

NGC 3735 = ZWG 334.42 = MCG 12-11-36 = PGC 35869, 12.6m, 4.0 x 0.8, 131, Sb

UGC 6580 = ZWG 334.44 = PGC 35939, 15.8m, 0.9' x 0.1', 143, Sb-c

Sequence

A 13.9m, B 14.7m, C 15.0m