Search found 2 matches

by ian
Thu Oct 04, 2007 10:50 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Comet Encke's Tail Ripped Off (APOD 03 Oct 2007)
Replies: 10
Views: 3478

iamlucky13
Thanks! I hadn't considered the direction of the tail at all...
by ian
Wed Oct 03, 2007 10:28 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Comet Encke's Tail Ripped Off (APOD 03 Oct 2007)
Replies: 10
Views: 3478

This is spectacular. A friend just posed the question: if each frame in the movie spans 45 minutes then how come there is not more parallax 'drift' between the comet and the background stars? Is it just a fortunate configuration of the comet's orbit, the spacecraft's orbit and the rotation of the sp...