Talk:CoRoT-7b: Difference between revisions

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Astronomy: Astronomical objects Start‑class Mid‑importance

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A news item involving CoRoT-7b was featured on Wikipedia's Main Page in the In the news section on 4 February 2009.

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Measured?

The article needs to indicate how the diameter was measured/estimated. --- RockMFR 23:04, 4 February 2009 (UTC)[reply]

Mass, density?

Is there any information about a mass of this object, which would allow to calculate the density of that body? That's important because it gives us some information about composition and nature of this planet( what it consists of). Amakthea computer (talk) —Preceding undated comment was added at 12:36, 13 February 2009 (UTC).[reply]

Actually diameter of the planet wouldn't be more than 1.4 that of the Earth,

Earth - 12.756km Corot 7B - 18000km *(max)

Unless it is a gaseous planet,

2 Masses of earth - 1.2 diameter of earth 3 Masses of earth - 1.27 diameter of earth 4 Masses of earth - 1.335 diameter of earth 5 Masses of earth - 1.425 diameter of earth (depending on internal composition) 7 Masses of earth - 1.5 diameter of earth 8 Masses of earth - 1.55 diameter of earth 10 Masses of earth - 1.6 diameter of earth (absolute max)

Gas Giants start to form around 12 masses of earth or diameter of 2 earths.

Uranus having 14.5 masses of earth is a fine example. —Preceding unsigned comment added by 188.220.53.72 (talk) 04:41, 16 December 2009 (UTC)[reply]

Chthonian planet?

Perhaps this planet is the first case of a "Chthonian" planet detection. See http://en.wikipedia.org/wiki/Chthonian_planet —Preceding unsigned comment added by Maaf (talk • contribs) 03:56, 12 June 2009 (UTC)[reply]

'Official Website'

I think this should be removed, as it's about 'UFO News'. Hawkania (talk) 19:42, 26 November 2009 (UTC)[reply]

Done. Thanks for noticing! --Cyclopia ^talk 21:14, 26 November 2009 (UTC)[reply]

Density confusion?

I just changed the density figures to be 5600 +/- 1300 as the previous numbers were 5.6 +/- 1.3 which would correspond to gm per cubic cm, but the info box gives the figure as kg per cubic metre. If the planet has a surface gravity of nearly 3G then there's no way its real density is only 5.6 kilograms per cubic metre.

@@ Line 35: / Line 35: @@
 I think this should be removed, as it's about 'UFO News'.  [[User:Hawkania|Hawkania]] ([[User talk:Hawkania|talk]]) 19:42, 26 November 2009 (UTC)
 *Done. Thanks for noticing! --[[User:Cyclopia|<font color="green">Cycl</font><big>o</big><font color="green">pia</font>]][[User talk:Cyclopia|<font color="red"><sup>talk</sup></font>]] 21:14, 26 November 2009 (UTC)
+== Density confusion? ==
+I just changed the density figures to be 5600 +/- 1300 as the previous numbers were 5.6 +/- 1.3 which would correspond to gm per cubic cm, but the info box gives the figure as kg per cubic metre.  If the planet has a surface gravity of nearly 3G then there's no way its real density is only 5.6 kilograms per cubic metre.