Comet 21P/Giacobini-Zinner brightening and tail developing

Tail starting to develop and definitely getting brighter

Object ID 21P/Giacobini-Zinner
Details 2018-08-16 22:09:30 – 22:23:23 UT
Telescope 200mm Newtonian f5
Camera ZWO ASI290MC
Exposure(s) 20 x 15s, 30s delay between exposures
Capture SharpCap
Processing Nebulosity, Photoshop
17 August 2018|Comets, News|

Comet 21P/Giacobin-Zinner animation

Moving through the constellation of Cassiopeia

Object ID 21P/Giacobini-Zinner
Details 2018-08-03 22:12 – 22:25 UT
Approx. mag. 9
Telescope 200mm Newtonian f5
Camera ZWO ASI 290MC
Exposure(s) 20 x 10s exposures, 30seconds apart
Capture SharpCap
Processing Photoshop
21P gif animation
4 August 2018|Comets, News|


2010-09-07 21:00 UT
200mm f5 Newtonian SW LPR MPCC
Canon EOS 350D Guided
5x60s 5x90s 3x120s subs darks ISO 800
Processed in Nebulosity, PhotoShop CS5
Also 1 frame to show comet against star field without trailing.

From Wikipedia: Comet Hartley 2, officially designated 103P/Hartley, is a small periodic comet with an orbital period of 6.46 years. It was discovered by Malcolm Hartley in 1986 at the Schmidt Telescope Unit in Siding Spring, Australia. Its diameter is estimated to be 1.2 to 1.6 km. It will be the subject of a flyby by the Deep Impact spacecraft on November 4, 2010, with a closest approach of 700 kilometers. This is part of the EPOXI mission.

And here’s NASA’s view of it from the EPOXI mission.

8 October 2010|Comets, News|


Some time in 1997?

A blast from the past. Found this scan of a picture I took of Hale-Bopp from the Isle of Arran. Don’t have much info about it but it was taken with a 35mm Praktica and a 135mm lens.

Trees and light pollution are obviously an issue but not too bad. An impressive comet!

30 August 2009|Comets|