APOD: Enceladus in Silhouette (2018 Feb 15)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 3571
Joined: Fri Dec 04, 2009 3:27 am

APOD: Enceladus in Silhouette (2018 Feb 15)

Post by APOD Robot » Thu Feb 15, 2018 5:05 am

Image Enceladus in Silhouette

Explanation: One of our Solar System's most tantalizing worlds, Enceladus is backlit by the Sun in this Cassini spacecraft image from November 1, 2009. The dramatic illumination reveals the plumes that continuously spew into space from the south pole of Saturn's 500 kilometer diameter moon. Discovered by Cassini in 2005, the icy plumes are likely connected to an ocean beneath the ice shell of Enceladus. They supply material directly to Saturn's outer, tenuous E ring and make the surface of Enceladus as reflective as snow. Across the scene, Saturn's icy rings scatter sunlight toward Cassini's cameras. Beyond the rings, the night side of 80 kilometer diameter moon Pandora is faintly lit by Saturnlight.

<< Previous APOD This Day in APOD Next APOD >>
[/b]

User avatar
owlice
Guardian of the Codes
Posts: 8351
Joined: Wed Aug 04, 2004 4:18 pm
Location: Washington, DC

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by owlice » Thu Feb 15, 2018 5:18 am

Stunning image!!!! What a planet!!!
A closed mouth gathers no foot.

L McNish

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by L McNish » Thu Feb 15, 2018 8:15 am

The "previous day" link on the current Enceladus page is to
https://apod.nasa.gov/apod/ap1802014html - which gives a 404 error
The period is missing before the "html"

User avatar
Chris Peterson
Abominable Snowman
Posts: 14384
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by Chris Peterson » Thu Feb 15, 2018 2:32 pm

L McNish wrote:The "previous day" link on the current Enceladus page is to
https://apod.nasa.gov/apod/ap1802014html - which gives a 404 error
The period is missing before the "html"
And there's an extra "0" in the link. It should be https://apod.nasa.gov/apod/ap180214.html .
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

heehaw

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by heehaw » Thu Feb 15, 2018 2:40 pm

owlice wrote:Stunning image!!!! What a planet!!!
Couldn't agree more!

User avatar
Ann
4725 Å
Posts: 9565
Joined: Sat May 29, 2010 5:33 am

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by Ann » Thu Feb 15, 2018 3:40 pm

I like the picture very much, too. And while Saturn is a fantastic planet, Enceladus is a pretty incredible moon.

Ann
Color Commentator

De58te
Science Officer
Posts: 253
Joined: Mon Sep 30, 2013 6:35 pm

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by De58te » Thu Feb 15, 2018 5:03 pm

You got me wondering, if Enceladus is a pretty incredible moon, what moon would be antithetic to it. The fairly lethargic moon Callisto maybe? The ugly torpid moon Umbriel? The passé Pasiphae?

Dibble Toe

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by Dibble Toe » Thu Feb 15, 2018 5:17 pm

De58te wrote:You got me wondering, if Enceladus is a pretty incredible moon, what moon would be antithetic to it. The fairly lethargic moon Callisto maybe? The ugly torpid moon Umbriel? The passé Pasiphae?
Perhaps the fully credible Luna

Boomer12k
:---[===] *
Posts: 2507
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: Enceladus in Silhouette (2018 Feb 15)

Post by Boomer12k » Thu Feb 15, 2018 10:51 pm

Must be an AWFUL LOT of water to having been doing that for SO LONG....maybe it used to be 600KM Diameter, and has shrunk???

Another great image, Cassini did a great job.
:---[===] *