Aegir, new moon |
Aegir, new moon |
Apr 14 2017, 02:47 PM
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#1
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Member Group: Members Posts: 238 Joined: 15-January 13 Member No.: 6842 |
Are there any Cassini images of the moon Aegir? (There's got to be, to make its discovery possible)
http://en.wikipedia.org/wiki/Aegir_(moon) Nothing come up from the search at the raw images archive. I hadn't had a look at the PDS archive yet. Any help would be welcome. The issue is, some online sources use an image of Hyperion to illustrate Aegir. So, to restore justice, as it were, I'd like to see some images of Aegir itself. -------------------- Curiosity rover panoramas: http://www.facebook.com/CuriosityRoverPanoramas
My Photosynth panoramas: http://photosynth.net/userprofilepage.aspx...;content=Synths |
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Apr 14 2017, 03:09 PM
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#2
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
It's going to be pixels and phase curves. When you look at the list of the moons of Saturn at the bottom of that Wikipedia article, it's not like any of the Inuit, Gallic, and Norse groups have any features to see in images, with the notable exception of Phoebe.
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Apr 14 2017, 04:01 PM
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#3
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
the moonlet was discovered by Earth-based telescopes, like most of the irregular sats.
I don't know if Cassini ever oberved it. even if it did, expect it to be a handful of pixels at best |
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Apr 14 2017, 06:26 PM
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#4
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
The list of tagets on this site:
https://saturn.jpl.nasa.gov/galleries/raw-images/ does not include Aegir, so it looks like there are no targeted images of it. For many other small outer moons they did take repeated images for light curves, phase functions and so on, but not Aegir apparently. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jan 1 2019, 02:49 PM
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#5
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Newbie Group: Members Posts: 9 Joined: 5-August 06 From: Berlin (Milky Way) Member No.: 1014 |
The list of tagets on this site: https://saturn.jpl.nasa.gov/galleries/raw-images/ does not include Aegir, so it looks like there are no targeted images of it. For many other small outer moons they did take repeated images for light curves, phase functions and so on, but not Aegir apparently. Phil Aegir was never targeted by Cassini. I considered it for June 2015, but due to the uncertain ephemeris and competition with other targets, this did not happen. From the 38 irregular moons of Saturn known to date, 25 were successfully observed: Phoebe All Inuits: Kiviuq, Ijiraq, Paaliaq, Siarnaq, Tarqeq. All Gallic: Albiorix, Bebhionn, Erriapus, Tarvos. 15 Nordic: Bergelmir, Bestla, Fornjot, Greip, Hati, Hyrrokkin, Kari, Loge, Mundilfari, Narvi, Skathi, Skoll, Suttungr, Thrymr, Ymir. Attempted, but not successful due to mis-pointing were observations of Surtur, Jarnsaxa, and S/2004_S12. ~~ Tilmann PS: I started to compile all available information of Cassini observations of irregular moons on my website, including individual sites for each moon. By coincidence, the Aegir page is already near completion. It can be found here: https://tilmanndenk.de/outersaturnianmoons/aegir/ |
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Jan 10 2019, 12:48 PM
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#6
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
... PS: I started to compile all available information of Cassini observations of irregular moons on my website, including individual sites for each moon. By coincidence, the Aegir page is already near completion. It can be found here: https://tilmanndenk.de/outersaturnianmoons/aegir/ Wow, that's a fantastic source for info about irregular satellites! Thank you! -------------------- |
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