HD 80606b is a transiting planet

General physics and astronomy discussions not directly related to Celestia
Topic author
ajtribick
Developer
Posts: 1855
Joined: 11.08.2003
With us: 21 years 4 months

HD 80606b is a transiting planet

Post #1by ajtribick » 28.01.2009, 21:31

HD 80606b is an exoplanet in a highly eccentric orbit, therefore was thought likely to be a planet with very interesting weather patterns.

Now there are infrared observations, and furthermore the eclipse of the planet behind its star was detected, which means the orbital inclination and hence the true mass of the planet can be determined.

UCSC: Astronomers get a sizzling weather report from a distant planet
Last edited by ajtribick on 27.02.2009, 20:55, edited 1 time in total.

Topic author
ajtribick
Developer
Posts: 1855
Joined: 11.08.2003
With us: 21 years 4 months

Re: Weather on HD 80606b

Post #2by ajtribick » 26.02.2009, 20:12

This is huge.

PRIMARY TRANSIT.

chris
Site Admin
Posts: 4211
Joined: 28.01.2002
With us: 22 years 10 months
Location: Seattle, Washington, USA

Re: Weather on HD 80606b

Post #3by chris » 26.02.2009, 20:43

ajtribick wrote:This is huge.

PRIMARY TRANSIT.

I just read the paper by Motou et al after seeing the announcement on oklo.org (where HD 80606b is a local favorite.) Very exciting stuff... And what an (iron) brick: 4 Jupiters packed into a planet with 0.86 (+/- 0.10) times Jupiter's mass, a mean density around 8g/cm^3.

--Chris

Topic author
ajtribick
Developer
Posts: 1855
Joined: 11.08.2003
With us: 21 years 4 months

Re: Weather on HD 80606b

Post #4by ajtribick » 26.02.2009, 20:51

chris wrote:And what an (iron) brick: 4 Jupiters packed into a planet with 0.86 (+/- 0.10) times Jupiter's mass, a mean density around 8g/cm^3.
That depends on whose radius estimate you believe... the Fossey et al. paper gives a radius which is pretty much equal to Jupiter's.

Give it another 111 days...

granthutchison
Developer
Posts: 1863
Joined: 21.11.2002
With us: 22 years

Re: Weather on HD 80606b

Post #5by granthutchison » 27.02.2009, 19:08

ajtribick wrote:This is huge.

PRIMARY TRANSIT.
I've just committed an update to extrasolar.ssc, so now you can watch the transit of Feb 13-14 in Celestia.

The new file is here: http://celestia.svn.sourceforge.net/viewvc/celestia/trunk/celestia/data/extrasolar.ssc?view=log

Grant


Return to “Physics and Astronomy”