Comments and questions about the
APOD on the main view screen.
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APOD Robot
- Otto Posterman
- Posts: 4737
- Joined: Fri Dec 04, 2009 3:27 am
Post
by APOD Robot » Sun Dec 13, 2015 5:14 am
When Gemini Sends Stars to Paranal
Explanation: From a radiant point in the constellation of the Twins, the
annual Geminid meteor shower rain down on planet Earth.
Tonight, the Geminds reach their peak and could be quite spectacular. The
featured blended image, however, captured
the shower's impressive peak in the year 2012.
The beautiful skyscape collected Gemini's lovely shooting stars in a careful composite of 30 exposures, each 20 seconds long, from the dark of the Chilean
Atacama Desert over
ESO's
Paranal Observatory. In the foreground Paranal's four
Very Large Telescopes, four
Auxillary Telescopes, and the
VLT Survey telescope are all open and observing. The skies above are shared with bright Jupiter (left), Orion, (top left), and the faint light of the
Milky Way. Dust swept up from the orbit of
active asteroid 3200 Phaethon, Gemini's meteors enter
Earth's atmosphere traveling at about 22 kilometers per second.
[/b]
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Boomer12k
- :---[===] *
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by Boomer12k » Sun Dec 13, 2015 10:06 am
A Lady at my bank is named...Gemini....what are the odds????
Could not see them....the weather is dreadful...and more on the way...
Good image.
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heehaw
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by heehaw » Sun Dec 13, 2015 12:27 pm
Boomer12k wrote:A Lady at my bank is named...Gemini....what are the odds????
Could not see them....the weather is dreadful...
:---[===] *
What are the odds? Well, I googled on Mrs. Gemini. Lots of ladies!! Then, I googled on Ms. Gemini....
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heehaw
Post
by heehaw » Sun Dec 13, 2015 12:32 pm
Today's ESPOD is Comet Catalina, but it is an image that is much inferior to yesterday's APOD!
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Eric
- Ensign
- Posts: 10
- Joined: Wed Feb 20, 2013 12:33 pm
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by Eric » Sun Dec 13, 2015 2:20 pm
Nice pic, thanks!
Description typo note: the shower rains down, not rain.
--Eric
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Case
- Commander
- Posts: 609
- Joined: Sat Jun 09, 2007 10:08 pm
- Location: (52°N, 06°E)
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by Case » Sun Dec 13, 2015 9:00 pm
Does an observatory complex like Paranal experience any hindrance from meteor showers? Or perhaps is it only a small chance the a single extra exposure gets discarded?
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neufer
- Vacationer at Tralfamadore
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- Location: Alexandria, Virginia
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by neufer » Sun Dec 13, 2015 10:42 pm
Case wrote:
Does an observatory complex like Paranal experience any hindrance from meteor showers? Or perhaps is it only a small chance the a single extra exposure gets discarded?
Planes and satellites are probably a bigger problem but a lot less so now with digital recording (e.g., digitally remove that 3 am red eye flight) than with photography.
Art Neuendorffer
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Chris Peterson
- Abominable Snowman
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- Location: Guffey, Colorado, USA
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by Chris Peterson » Sun Dec 13, 2015 10:56 pm
Case wrote:Does an observatory complex like Paranal experience any hindrance from meteor showers? Or perhaps is it only a small chance the a single extra exposure gets discarded?
Meteors in images are fairly rare. When they occur, they are usually ignored, and occasionally have scientific value in their own right. No hindrance at all.
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Chris Peterson
- Abominable Snowman
- Posts: 16832
- Joined: Wed Jan 31, 2007 11:13 pm
- Location: Guffey, Colorado, USA
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by Chris Peterson » Sun Dec 13, 2015 10:58 pm
neufer wrote:Case wrote:
Does an observatory complex like Paranal experience any hindrance from meteor showers? Or perhaps is it only a small chance the a single extra exposure gets discarded?
Planes and satellites are probably a bigger problem but a lot less so now with digital recording (e.g., digitally remove that 3 am red eye flight) than with photography.
It's worth keeping in mind that the vast majority of images have no aesthetic intent, and therefore there's no reason to remove artifacts (and doing so will cause more problems than it will solve). If a plane happens to pass through the part of the frame that matters to the project, the frame is probably ruined, not repaired the way an aesthetic image would be.
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Boomer12k
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by Boomer12k » Mon Dec 14, 2015 12:14 am
heehaw wrote:Boomer12k wrote:A Lady at my bank is named...Gemini....what are the odds????
Could not see them....the weather is dreadful...
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What are the odds? Well, I googled on Mrs. Gemini. Lots of ladies!! Then, I googled on Ms. Gemini....
This was her FIRST name....
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Animal of Stone
Post
by Animal of Stone » Mon Dec 14, 2015 12:26 pm
Typically Geminian, all over the place.
