103P/Hartley 2

Celestial visitors from the edge of the Solar System.
Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 103P/Hartley 2

Post by Christopher K. » November 4th, 2010, 10:11 am

Live images of Hartley 2, courtesy the EPOXI mission, are now pouring into the mission scientists' control room. There is a lot a cheering and a lot of smiling faces.

The spacecraft began downlinking imagery through its high-gain antenna at about 7:30am--that's probably EDT.

One of the closest pictures...it really is awesome:
http://epoxi.umd.edu/3gallery/ENCOUNTER ... 01_001.jpg

Live coverage is on NASA TV:
http://www.nasa.gov/multimedia/nasatv/index.html

fred8615
Posts: 185
Joined: October 12th, 2009, 12:29 pm
Location: Sorrento, LA

Re: 103P/Hartley 2

Post by fred8615 » November 5th, 2010, 8:02 am

CNN has a slideshow of the flyby here:

http://www.cnn.com/2010/WORLD/americas/ ... tml?hpt=C2
Frederick J. Barnett
"Someone's got to take the responsibility if the job's going to get done!! Do you think that's easy?!" Gregory Peck - The Guns Of Navarone

btoman
Posts: 208
Joined: October 12th, 2009, 10:35 pm
Location: Baton Rouge

Re: 103P/Hartley 2

Post by btoman » December 16th, 2010, 12:26 am

Hey All,

I took some images of Hartley 2 back in September and submitted them to the Amateur Observers Program that is doing work with the EPOXI mission, as well. I'm happy to say that my images were posted on their site! Most of you have probably already seen them, but it's still cool to me :)

If you want to check them out there or see other images of the comet, follow this link then click on CCD (Digital). My images are down in September on the 27th and 28th. They asked for more if I get some and also to try for Vesta when I get a chance.

http://aop.astro.umd.edu/gallery/hartley.shtml

Ben

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 103P/Hartley 2

Post by Christopher K. » May 17th, 2011, 11:12 pm

Researchers using EPOXI data have revealed to the public that Hartley 2 is a first of its kind. The comet contains copious amounts of both water and carbon dioxide. What they find particularly compelling is the correlation between the release of water molecules and the release of other gas molecules. The Goddard Space Flight Center's Michael Mumma says "This is the first time anyone has seen an entire suite of these gases change in the same way at the same time."

The complete report was released yesterday in an issue of Astrophysical Journal Letters.

Press release at:
http://www.nasa.gov/mission_pages/epoxi/hartley-2.html

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 103P/Hartley 2

Post by Christopher K. » July 30th, 2011, 5:46 pm

NEOWISE has found that Hartley 2 is leaving a lot of itself behind in its orbit; some of the pieces of debris are as big as golf balls. Although EPOXI saw the debris crumbling off the nucleus back in November of last year, NEOWISE is seeing that the large pieces are staying in the comet's orbit, as they are less likely to be pushed off orbit by the Sun's radiation pressure.

Hartley 2 is now 2.3 AU from the Sun.

More information:
http://www.nasa.gov/mission_pages/WISE/ ... 10714.html

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 103P/Hartley 2

Post by Christopher K. » January 16th, 2015, 10:40 pm

12 January was the tenth anniversary of the launch of the Deep Impact/EPOXI mission. May we always remember the great science and imagery it gave us.

The last "Latest News" entry at its website:
http://www.nasa.gov/mission_pages/epoxi ... 10616.html

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