Search found 8 matches

by Steve Randall
Tue Apr 23, 2024 7:03 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Contrail Shadow X (2024 Apr 23)
Replies: 20
Views: 563

Re: APOD: Contrail Shadow X (2024 Apr 23)

I suspect that the clouds at the bottom of the picture are very high - higher than the contrails. I suspect that the clouds with the shadow are lower than the contrails.

Nice picture though.
by Steve Randall
Sun Aug 08, 2021 7:51 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Perseid Below (2021 Aug 08)
Replies: 12
Views: 2789

Re: APOD: A Perseid Below (2021 Aug 08)

If a similar grain of dust hit the ISS, what would the consequence be? Has the ISS ever been punctured/damaged by a meteor?
by Steve Randall
Sat Jul 17, 2021 6:28 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Alphonsus and Arzachel (2021 Jul 17)
Replies: 23
Views: 8257

Re: APOD: Alphonsus and Arzachel (2021 Jul 17)

Both of these craters seem to have grooves near the northern rim. Alphonsus has several other lesser grooves too. How do we explain the grooves?
by Steve Randall
Thu Feb 21, 2013 11:29 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Asteroid 2012 DA14 Passes the Earth (2013 Feb 17)
Replies: 52
Views: 8644

Re: APOD: Asteroid 2012 DA14 Passes the Earth (2013 Feb 17)

Does the asteroid seem to be spinning? Maybe 2 or 3 revs/second? Did anyone do an FFT on luminosity or something?
by Steve Randall
Sun Nov 06, 2011 5:32 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Ghost of the Cepheus Flare (2011 Oct 31)
Replies: 21
Views: 3275

Re: APOD: Ghost of the Cepheus Flare (2011 Oct 31)

Interesting how the two spooks on the left seem to have been formed under the same conditions, like two branches of a snowflake. They each have a left arm extended upward, a large horn on the right side of their head and a horn bud on the left side. Wierd!! To me, the whole thing looks fractal. The...
by Steve Randall
Fri Nov 05, 2010 8:30 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Comet Hartley 2 Flyby (2010 Nov 05)
Replies: 18
Views: 4469

Re: APOD: Comet Hartley 2 Flyby (2010 Nov 05)

Very similar to the asteroid Itokawa, visited by the Japanese Hayabusa spacecraft.
by Steve Randall
Sat Oct 02, 2010 11:26 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Hubble s Lagoon (2010 Oct 02)
Replies: 24
Views: 4264

Re: APOD: Hubble s Lagoon (2010 Oct 02)

Beautiful. Are the blue stars closer than the swirling nebula, or are they shining through it? They should be seen if front of it. Likely the nebula is thick enough to be mostly opaque in many places, and the stars that are seen through rather thick dust should be highly reddened. I found a picture...
by Steve Randall
Sat Oct 02, 2010 8:10 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Hubble s Lagoon (2010 Oct 02)
Replies: 24
Views: 4264

Re: APOD: Hubble s Lagoon (2010 Oct 02)

Beautiful. Are the blue stars closer than the swirling nebula, or are they shining through it?