Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day -- The Flare and the Galaxy
NASA ^ | September 02, 2015 | (see photo credit)

Posted on 09/02/2015 4:20:50 AM PDT by SunkenCiv

Explanation: Is this person throwing a lightning bolt? No. Despite appearances, this person is actually pointing in the direction of a bright Iridium flare, a momentary reflection of sunlight off of a communications satellite in orbit around the Earth. As the Iridium satellite orbits, reflective antennas became aligned between the observer and the Sun to create a flash brighter than any star in the night sky. Iridium flares typically last several seconds, longer than most meteors. Also unlike meteors, the flares are symmetric and predictable. The featured flare involved Iridium satellite 15 and occurred over southern Estonia last week. In this well-planned image, a spectacular night sky appears in the background, complete with the central band of our Milky Way Galaxy running vertically up the image center.

September 02, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; iridiumflare; science
[Credit and Copyright: Martin Mark]

1 posted on 09/02/2015 4:20:50 AM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 09/02/2015 4:21:46 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

fortunately, there is no Iridium flare on Uranus..or mine


3 posted on 09/02/2015 4:57:27 AM PDT by Revelation 911
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Cool pic!
I wonder if they got it on the first try.


4 posted on 09/02/2015 5:01:47 AM PDT by citizen (America is-or was-The Great Melting Pot. JEB won't even speak American in his own home. NO Bush!!)
[ Post Reply | Private Reply | To 2 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson