Search found 2 matches
- Thu Jun 01, 2017 3:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Shadowrise and Sunset (2017 Jun 01)
- Replies: 24
- Views: 10536
- Wed Jan 02, 2013 5:22 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Einstein Cross Gravitational Lens (2013 Jan 02)
- Replies: 41
- Views: 5977
Re: APOD: The Einstein Cross Gravitational Lens (2013 Jan 02
I was wondering how long is this going to be visible? from our point of view.