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Unmanned Spaceflight.com _ Cassini's ongoing mission and raw images _ Rev 203

Posted by: Val Klavans Apr 16 2014, 12:26 AM

Another pale blue dot: On April 11, 2014 ISS observed Uranus as it appeared near Saturn's F ring!

Right after the raw images came in, Ian R and I put together this RGB color composite (we chose the set of raws with longer exposures to make Uranus more visible):


Posted by: Ian R Apr 16 2014, 12:32 AM

I have to say that Val did a great job of employing this composite for outreach purposes, disseminating it via the likes of Facebook and Twitter to a very positive reaction. cool.gif

Posted by: nprev Apr 16 2014, 01:00 AM

Just out of curiosity, does anybody know what the apparent magnitude of Uranus was from Cassini in this shot? I can't see it ever getting brighter than, say, 4.5 or so even during the most favorable possible opposition.

Posted by: djellison Apr 16 2014, 03:44 AM

QUOTE (nprev @ Apr 15 2014, 05:00 PM) *
Just out of curiosity, does anybody know what the apparent magnitude of Uranus was from Cassini in this shot? I can't see it ever getting brighter than, say, 4.5 or so even during the most favorable possible opposition.


Dimmer than Uranus as seen from the earth - approx 6.7 according to Horizons ( http://ssd.jpl.nasa.gov/ ) - because right now Saturn and Uranus are on opposite sides of the solar system



 

Posted by: wildespace Feb 21 2017, 09:14 AM

Taken by Cassini's wide-angle camera on April 4th 2014, this great view of Saturn in infrared:



I used two images (W00088137 and W00088136) for the red and blue channels, creating a fake green channel by averaging the two images. I then used http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA18280 from a JPL article to superimpose my colour image over.

Credit: NASA/JPL-Caltech/Space Science Institute/Maksim Kakitsev

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