Bernd Brinkmann´s

images of

Comet C/2004 F4 (Bradfield)


Date: 25.04.2004
Time: 02:58:27 - 02:59:34 UT
Canon EOS 10D with Sigma EX 105/2.8 at f/2.8
10 x 4sec, centered on comet, ISO 400, automatic WB
comet 8.3 deg above horizon, sun 10.9 deg below horizon, elongation 20.3 deg
transparency was not as good as on 24.04.2004
image scaled down to 33.3% and cropped a little


Date: 24.04.2004
Time: 03:01:34 - 03:02:31 UT
Canon EOS 10D with Sigma EX 105/2.8 at f/2.8
5 x 3 sec, centered on comet, ISO 200 automatic WB
after gradient removal and excessiv contrast strech the tail can be followed for 2.7 deg now
the white lines are wires from a nearby power line
image above set to gray scale, inverted, scaled down to 50% and cropped



Date: 24.04.2004
Time: 02:48:07 UT
Canon EOS 10D with Sigma EX 105/2.8 at f/2.8
3 sec ISO 800 automatic WB
tail 1.4 deg long, bright star right of comet is 3.9 mag ETA And
image above scaled down to 30%, image below 100% (cropped)
notice the green color of the coma compared to the orange stars



Back to Comet Main Page
Back to Homepage of Sternwarte Herne


any comments to: Bernd.Brinkmann@FH-BOCHUM.DE
last update: 25.04.2004 BB