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Astronomy Picture of the Day - Video of a Green Flash
APOD.NASA.gov ^
| 10 Nov, 2021
| Video Credit & Copyright: Paolo Lazzarotti
Posted on 11/10/2021 3:46:47 PM PST by MtnClimber
Explanation: Many think it is just a myth. Others think it is true but its cause isn't known. Adventurers pride themselves on having seen it. It's a green flash from the Sun. The truth is the green flash does exist and its cause is well understood. Just as the setting Sun disappears completely from view, a last glimmer appears startlingly green. The effect is typically visible only from locations with a low, distant horizon, and lasts just a few seconds. A green flash is also visible for a rising Sun, but takes better timing to spot. A dramatic green flash was caught on video last month as the Sun set beyond the Ligurian Sea from Tuscany, Italy. The second sequence in the featured video shows the green flash in real time, while the first is sped up and the last is in slow motion. The Sun itself does not turn partly green -- the effect is caused by layers of the Earth's atmosphere acting like a prism.
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; America_Right; AZ .44 MAG; BBB333; ...
Today's image is a video at the link Pinging the APOD list.
šŖ š š š
2
posted on
11/10/2021 3:47:19 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
To: minnesota_bound
Someone should look, quick to find the Lantern ring in the immediate vicinity.
4
posted on
11/10/2021 3:53:18 PM PST
by
epluribus_2
(He, had the best mom - ever.)
To: MtnClimber
Saw one in 1981 when I was stationed at the U. S. Coast Guard LORAN station (LORSTA) Kure Atoll. There is really nothing west of Kure until you get to Japan. I was running on the coral sand beach just as the sun dipped over the western horizon. It happened really fast and I wish I had been ready to see it. Never got to see another one.
5
posted on
11/10/2021 3:55:42 PM PST
by
dblshot
To: MtnClimber
Both nickel and oxygen have green emission lines.
6
posted on
11/10/2021 3:57:28 PM PST
by
seowulf
(Civilization begins with order, grows with liberty, and dies with chaos...Will Durant)
To: MtnClimber
seen it quite a few times... always a surprise
7
posted on
11/10/2021 4:11:09 PM PST
by
Chode
(there is no fall back position, there's no rally point, there is no LZ... we're on our own. #FJB)
To: MtnClimber
The world is so full of a number of things, I ām sure we should all be as happy as kings. (Robt Louis Stevenson)
8
posted on
11/10/2021 4:32:51 PM PST
by
Scarlett156
(I would rather be judged by 12 than carried by 6)
To: Chode
9
posted on
11/10/2021 4:53:29 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
I saw it once, Le rayon vert.
10
posted on
11/10/2021 4:57:02 PM PST
by
PUGACHEV
To: MtnClimber
living on ST Croix and at sea, incredibly fast
11
posted on
11/10/2021 5:00:03 PM PST
by
Chode
(there is no fall back position, there's no rally point, there is no LZ... we're on our own. #FJB)
To: MtnClimber
A student of mine in a meteorology course spent a winter living as a beach bum in Costa Rica. She and her friends would go down the beach every evening and wait for the green flash. They were often rewarded, or so she claimed.
In the tropics the sun sets perpendicular to the horizon.
Not so at high latitudes. 19th century arctic explorers regularly reported seeing a green flash, because of the oblique angle of the sun setting, lasting for as long as 45 minutes.
12
posted on
11/10/2021 5:08:17 PM PST
by
billorites
(freepo ergo sum)
To: MtnClimber
That is so cool. I have friends who have seen it. I never have.
13
posted on
11/10/2021 5:20:21 PM PST
by
telescope115
(Proud member of the ANTIFAuci movement. )
To: MtnClimber
Seen the little green “hat” on the sun many times, did not think of it as a “flash”
14
posted on
11/10/2021 5:20:51 PM PST
by
doorgunner69
("Those who vote decide nothing. Those who count the vote decide everything.." -Joseph Stalin)
To: MtnClimber
Used to imbibe umbrella drinks on Maui watching the green flash.
To: MtnClimber
I’m told The Green Hornet came from there.
16
posted on
11/10/2021 5:52:38 PM PST
by
Fester Chugabrew
(No nation that sanctions the wholesale slaughter of its unborn citizens is fit to endure.)
To: MtnClimber
XT-3? That’s something no human would eat unless starving.
Little Fuzzies can’t get enough of it though...
17
posted on
11/10/2021 6:11:48 PM PST
by
null and void
(The Washington DC Swamp, Where Bottom Feeders Are Apex Predators!)
To: null and void
18
posted on
11/10/2021 10:20:51 PM PST
by
BiteYourSelf
( Earth first we'll strip mine the other planets later.)
To: MtnClimber
19
posted on
11/11/2021 5:17:45 AM PST
by
Red Badger
(Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
To: MtnClimber
Verro! Seen it Iām the Med myself.
20
posted on
11/11/2021 6:58:36 AM PST
by
Srednik
(Polyglot. Overeducated. Redeemed by Christ. Anticommunist from the womb.)
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