Active Galaxy Markarian 421 (photograph)

Date: 22nd Dec 1987
Time: 03:06 UT
Exposure: 30 min @ f4.5
Equipment: 300mm FL f4.5 telephoto lens (Zenith)
Film: Kodak Tec Pan 2415
Developer: D19 for 8 min
Site: Light polluted Prestwich, Manchester, England
Ref: A31-2

Notes:

RA. 11h 04m 27.3s  Dec +38 12 32 (2000)
BL Lacertae object
Optically variable between mag 13.1 & 13.5
Redshift 0.031
Photo orientated with North to top.

This is the most remote and faintest object I have photographed.
The camera (Zenith) was mounted on a home-made equatorial
drive. Guiding was undertaken with a 50mm refractor.


Michael Oates.