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APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 4:07 am
by APOD Robot
Reflections of Venus and Moon
Explanation: Posing near the western horizon, a brilliant
evening star and slender young crescent shared reflections in a calm sea last Thursday after sunset. Recorded in this snapshot from the Atlantic beach at Santa Marinella near Rome, Italy, the lovely celestial conjunction of the two brightest beacons in the night sky could be
enjoyed around the world. Seaside, light reflected by briefly horizontal surfaces of the gentle waves forms the shimmering columns across the water. Similar reflections by fluttering atmospheric ice crystals can create sometimes
mysterious pillars of light. Of course, earthlight itself visibly illuminates the faint
lunar night side.
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 7:06 am
by xmetman
Shouldn't that be a Mediterranean beach rather than Atlantic?
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 7:24 am
by Ann
It's interesting that the reflection of the Moon is distinctly yellow, while the reflection of Venus looks white. Presumably, the surface of the Moon is more reddish the the cloud tops of Venus.
That's interesting, though. The cloud tops of Saturn are yellowish, and Saturn also looks distinctly yellow in the night sky. Fascinatingly, Jupiter normally doesn't look particularly yellow to me, although it does look "warm white". But its banded cloud tops are alternatively white and reddish.
Interesting! Why are the cloud tops of Venus, Jupiter and Saturn distinctly different in color?
Ann
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 7:26 am
by Joemc001
Technically it should be the Tyrrhenian Sea. But Mediterranean would have been a lot better than the Atlantic. Surprised by the error on APOD. Never seen a big miss like this before.
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 8:21 am
by Boomer12k
Gee... I could have traveled to a far away land to see that... STUPID ME... I just took one here at the Mobile Home Park....Moon looks a bit chopped because there is a tree right there, and it was covering a bit...
Nice view though...good pic...
:---[===] *
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 10:22 am
by De58te
"Seaside, light reflected by briefly horizontal surfaces of the gentle waves forms the shimmering columns across the water. Similar reflections by fluttering atmospheric ice crystals can create sometimes mysterious pillars of light."
What is the name of the author? I ask because I bet that that writer has probably published a couple of books of poetry.
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 12:21 pm
by orin stepanek
I just had to use this APOD as future wallpaper! Just trimmed it to fit my screen!
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 1:44 pm
by neufer
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 2:04 pm
by bystander
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 2:25 pm
by geckzilla
xmetman wrote: ↑Sat May 19, 2018 7:06 am
Shouldn't that be a Mediterranean beach rather than Atlantic?
Joemc001 wrote: ↑Sat May 19, 2018 7:26 am
Technically it should be the Tyrrhenian Sea. But Mediterranean would have been a lot better than the Atlantic. Surprised by the error on APOD. Never seen a big miss like this before.
Is the Mediterranean not part of the Atlantic?
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 2:43 pm
by Chris Peterson
geckzilla wrote: ↑Sat May 19, 2018 2:25 pm
xmetman wrote: ↑Sat May 19, 2018 7:06 am
Shouldn't that be a Mediterranean beach rather than Atlantic?
Joemc001 wrote: ↑Sat May 19, 2018 7:26 am
Technically it should be the Tyrrhenian Sea. But Mediterranean would have been a lot better than the Atlantic. Surprised by the error on APOD. Never seen a big miss like this before.
Is the Mediterranean not part of the Atlantic?
There's no right or wrong answer to that. Some people treat it as an arm of the Atlantic, some don't. It's not like there's some standards body that defines these things.
(I believe there is just one public beach in Santa Marinella, and I don't think this image could have been made from there. That made me wonder if there was some other point farther around the town on the west side of the peninsula that people identify as "Atlantic". No idea if this is the case; I don't know through what channel this image was submitted or where the location information came from.)
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 2:55 pm
by Sa Ji Tario
The waves must be weaker or null so that the reflection of the lunar light extends from the beginning of the water mirror to the observer clearly, which is what many photographers, poets and I personally call the "path of light" that in a large percentage, when we are bucolic and contemplative in relaxation, it gives rise to waves of subtle emotions that allow us to play with memories. And if someone unexpectedly asks for the thoughts we can begin to say "... there was once, far in time ..."
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sat May 19, 2018 10:40 pm
by Wha
Chris Peterson wrote: ↑Sat May 19, 2018 2:43 pm
geckzilla wrote: ↑Sat May 19, 2018 2:25 pm
Is the Mediterranean not part of the Atlantic?
There's no right or wrong answer to that. Some people treat it as an arm of the Atlantic, some don't. It's not like there's some standards body that defines these things.
First time I've ever heard anything east of Gibraltar referred to as Atlantic.
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sun May 20, 2018 5:19 pm
by rstevenson
geckzilla wrote: ↑Sat May 19, 2018 2:25 pm
xmetman wrote: ↑Sat May 19, 2018 7:06 am
Shouldn't that be a Mediterranean beach rather than Atlantic?
Joemc001 wrote: ↑Sat May 19, 2018 7:26 am
Technically it should be the Tyrrhenian Sea. But Mediterranean would have been a lot better than the Atlantic. Surprised by the error on APOD. Never seen a big miss like this before.
Is the Mediterranean not part of the Atlantic?
Whatever oceanographers may think, expressed clearly within their discipline, most people would see the Med as a separate body of water, connected through a narrow channel to a larger body of water. I don't understand the intention of the author of this APOD description. Perhaps they can chime in to tell us why they put it that way.
Rob
Re: APOD: Reflections of Venus and Moon (2018 May 19)
Posted: Sun May 20, 2018 6:48 pm
by neufer
https://en.wikipedia.org/wiki/Atlantic_Ocean wrote:
<<The International Hydrographic Organization (IHO) defined the limits of the oceans and seas in 1953, but some of these definitions have been revised since then and some are not used by various authorities, institutions, and countries, see for example the CIA World Factbook. Correspondingly, the extent and number of oceans and seas varies.
The Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait, Greenland Sea, Norwegian Sea and Barents Sea. To the east, the boundaries of the ocean proper are Europe: the Strait of Gibraltar (where it connects with the Mediterranean Sea–one of its marginal seas–and, in turn, the Black Sea, both of which also touch upon Asia) and Africa.
In the southeast, the Atlantic merges into the Indian Ocean. The 20° East meridian, running south from Cape Agulhas to Antarctica defines its border. In the 1953 definition it extends south to Antarctica, while in later maps it is bounded at the 60° parallel by the Southern Ocean.
The Atlantic has irregular coasts indented by numerous bays, gulfs, and seas. These include the Baltic Sea, Black Sea, Caribbean Sea, Davis Strait, Denmark Strait, part of the Drake Passage, Gulf of Mexico, Labrador Sea, Mediterranean Sea, North Sea, Norwegian Sea, almost all of the Scotia Sea, and other tributary water bodies. Including these marginal seas the coast line of the Atlantic measures 111,866 km compared to 135,663 km for the Pacific.
Including its marginal seas, the Atlantic covers an area of 106,460,000 km
2 or 23.5% of the global ocean and has a volume of 310,410,900 km
3 or 23.3% of the total volume of the earth's oceans. Excluding its marginal seas, the Atlantic covers 81,760,000 km
2 and has a volume of 305,811,900 km
3.>>