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I can't find any significant body of literature that uses "planetshine" in the sense of this article: "Earthshine" dominates, and is even used when the Earth isn't the reflecting body (see http://www.astronomy.com/asy/default.aspx?c=a&id=3115 as one random example). mdf 13:04, 10 April 2007 (UTC)
George Albert Lee ( talk) 15:21, 6 October 2021 (UTC)
mdf's above comment is correct. Earthshine is the preferred terminology for this astronomical occurrence, and the article's title should reflect such.
Additionally, the image of Earthshine linked here, uploaded by a previous user, is not public domain, nor is NASA the source of the astrophoto. The actual author is a prominent astrophotographer named Russell Croman, and the image is copyrighted. See the original photo here on his website (and, please note that the image's metadata also lists Croman as being the source). Now, NASA may have used Croman's photo somewhere with his permission, but that in no way implies that the image is public domain.
Either the image should be removed, or someone should seek Mr. Croman's permission for use of the photo (and include proper citation). I would undertake this myself but I've never participated here and am unfamiliar with the protocols; I signed up to post this comment after recognizing the source of the image noted above and desired to bring it to someone's attention.
Cheers. Am astronomer 05:09, 20 April 2007 (UTC)
This term is often seen capitalized as in this article, but logically shouldn't it be lower-case just like "sunshine"? —Preceding unsigned comment added by 85.82.179.226 ( talk) 04:59, 29 October 2008 (UTC)
Reference [1] points to an article on Sky and Telescope that doesn't appear to exist. More likely, the reference is in the wrong format. S&T news articles are not referenced as "article number xxx." —Preceding unsigned comment added by 74.193.10.56 ( talk) 17:32, 22 December 2009 (UTC)
I think this image is a clearer illustration of ringshine than the one currently on the page.
Saprophage ( talk) 01:10, 7 May 2010 (UTC)
The final section of the article does not appear to be relevant as it refers to a search for starlight directly reflected from planets, not planetary light reflected from their satellites or rings. — Preceding unsigned comment added by Ringbinder ( talk • contribs) 17:53, 9 March 2011 (UTC)
The final section is also out of date. The missions mentioned (TFI and Darwin) have all been cancelled but there are similar missions with different names being planned, namely Finesse (NASA), Tess (NASA) and Echo (ESA). Athosfolk ( talk) 14:53, 19 November 2013 (UTC)
Re: Earthshine is used to help determine the current albedo of the Earth. The data are used to analyze global cloud cover, a climate factor. Oceans reflect the least amount of light, roughly 10%. Land reflects anywhere from 10–25% of the Sun's light, and clouds reflect around 50%. So, the part of the Earth where it is daytime and from which the Moon is visible determines how bright the Moon's earthshine appears at any given time.
I do not recall where I heard, or saw this, but I do remember an old tradition, that when you see the Old Moon in the New Moon's arms, beware to sailors of coming storms. I pick these words, as they might form a couplet mnemonic.
I found this:
(dark part visible)
Late, late yestreen I saw the new moon
With the old moon in her arms,
And I fear, I fear, my master dear,
We shall have a deadly storm.
Ballad of Sir Patrick Spenser.
To see the old moon in the arms of the new one is a sign of bad weather to come.
Note: this is only valid in the sense of Western Europe with respect to the Atlantic ocean, as the brightness of the Earthshine there is indicative of cloud cover over that ocean.
Dave at 168 10:00, 13 January 2015 (UTC) — Preceding unsigned comment added by Daveat168 ( talk • contribs)
References
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I can't find any significant body of literature that uses "planetshine" in the sense of this article: "Earthshine" dominates, and is even used when the Earth isn't the reflecting body (see http://www.astronomy.com/asy/default.aspx?c=a&id=3115 as one random example). mdf 13:04, 10 April 2007 (UTC)
George Albert Lee ( talk) 15:21, 6 October 2021 (UTC)
mdf's above comment is correct. Earthshine is the preferred terminology for this astronomical occurrence, and the article's title should reflect such.
Additionally, the image of Earthshine linked here, uploaded by a previous user, is not public domain, nor is NASA the source of the astrophoto. The actual author is a prominent astrophotographer named Russell Croman, and the image is copyrighted. See the original photo here on his website (and, please note that the image's metadata also lists Croman as being the source). Now, NASA may have used Croman's photo somewhere with his permission, but that in no way implies that the image is public domain.
Either the image should be removed, or someone should seek Mr. Croman's permission for use of the photo (and include proper citation). I would undertake this myself but I've never participated here and am unfamiliar with the protocols; I signed up to post this comment after recognizing the source of the image noted above and desired to bring it to someone's attention.
Cheers. Am astronomer 05:09, 20 April 2007 (UTC)
This term is often seen capitalized as in this article, but logically shouldn't it be lower-case just like "sunshine"? —Preceding unsigned comment added by 85.82.179.226 ( talk) 04:59, 29 October 2008 (UTC)
Reference [1] points to an article on Sky and Telescope that doesn't appear to exist. More likely, the reference is in the wrong format. S&T news articles are not referenced as "article number xxx." —Preceding unsigned comment added by 74.193.10.56 ( talk) 17:32, 22 December 2009 (UTC)
I think this image is a clearer illustration of ringshine than the one currently on the page.
Saprophage ( talk) 01:10, 7 May 2010 (UTC)
The final section of the article does not appear to be relevant as it refers to a search for starlight directly reflected from planets, not planetary light reflected from their satellites or rings. — Preceding unsigned comment added by Ringbinder ( talk • contribs) 17:53, 9 March 2011 (UTC)
The final section is also out of date. The missions mentioned (TFI and Darwin) have all been cancelled but there are similar missions with different names being planned, namely Finesse (NASA), Tess (NASA) and Echo (ESA). Athosfolk ( talk) 14:53, 19 November 2013 (UTC)
Re: Earthshine is used to help determine the current albedo of the Earth. The data are used to analyze global cloud cover, a climate factor. Oceans reflect the least amount of light, roughly 10%. Land reflects anywhere from 10–25% of the Sun's light, and clouds reflect around 50%. So, the part of the Earth where it is daytime and from which the Moon is visible determines how bright the Moon's earthshine appears at any given time.
I do not recall where I heard, or saw this, but I do remember an old tradition, that when you see the Old Moon in the New Moon's arms, beware to sailors of coming storms. I pick these words, as they might form a couplet mnemonic.
I found this:
(dark part visible)
Late, late yestreen I saw the new moon
With the old moon in her arms,
And I fear, I fear, my master dear,
We shall have a deadly storm.
Ballad of Sir Patrick Spenser.
To see the old moon in the arms of the new one is a sign of bad weather to come.
Note: this is only valid in the sense of Western Europe with respect to the Atlantic ocean, as the brightness of the Earthshine there is indicative of cloud cover over that ocean.
Dave at 168 10:00, 13 January 2015 (UTC) — Preceding unsigned comment added by Daveat168 ( talk • contribs)
References
Hello fellow Wikipedians,
I have just modified one external link on Planetshine. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 17:25, 21 January 2018 (UTC)