Search found 7 matches

by gregg07
Wed Feb 18, 2009 4:04 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Unusual Red Glow Over Minnesota (2009 Feb 17)
Replies: 201
Views: 49736

Re: Unusual Red Glow Over Minnesota (2009 February 17)

This is a bit of purged jet fuel being burned off behind the jet engines...
by gregg07
Thu Aug 23, 2007 5:58 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Discussion of APOD 15 August 2007: Mysterious Streaks
Replies: 97
Views: 81796

Streaks 2

Oops - sorry, someone else also posted this idea. I believe it most likely. There a quite a few streaks - some very dim. These may have been birds not in the brightest part of the beam.
by gregg07
Thu Aug 23, 2007 5:55 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Discussion of APOD 15 August 2007: Mysterious Streaks
Replies: 97
Views: 81796

Streaks

There is a light (spotlight?) on the crest of the hill... this is a time exposure... could these not be birds in flight?
by gregg07
Mon Apr 16, 2007 6:56 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Spiral Galaxy M83 (APOD 19 Apr 1997)
Replies: 6
Views: 2706

Re: Spiral Galaxy M83

harry wrote:Hello All


Spiral Galaxy M83

http://antwrp.gsfc.nasa.gov/apod/ap970419.html

Why has this galaxy got more supernova than any other?
Well... somebody has got to.
by gregg07
Mon Apr 16, 2007 6:51 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Red Square Nebula (APOD 16 April 2007)
Replies: 25
Views: 16273

Planets and Dust Rings

If our own star has a LOT OF stuff (say like a lot of asteroids, "THE" Main Asteroid belt, the Kuyper Belt, and the Oort Cloud) around it, like rings around Saturn, and if we had several large planets and minor planets and sub planets and (whatever they are called anymore) orbiting our sun...
by gregg07
Mon Apr 16, 2007 6:43 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Red Square Nebula (APOD 16 April 2007)
Replies: 25
Views: 16273

Sweeping up the ejecta

Beepboop, that is viewed perfectly side on. Or maybe like a variation of the Hourglass Nebula (http://antwrp.gsfc.nasa.gov/apod/ap020615.html). If a star has a thick dust ring (maybe even ones like the "Asteroid Belt", Kuyper Belt, and Oort cloud) and several large planets (perhaps even a...
by gregg07
Tue Jan 02, 2007 2:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Light from the First Stars (APOD 02 Jan 2007)
Replies: 20
Views: 2404

Interesting

I think I was able to simulate the same results via PaintShop Pro... I took the original picture, replaced all bright foreground objects with black, and then did a Histogram Equalize... the results mirrored this. But, how do we know this isn't faintly glowing warm hydrogen gas in our own galaxy vs f...