2006-09-23 08:01:07 · 5 answers · asked by bjmarchini 2 in Science & Mathematics ➔ Astronomy & Space
Hi. I think that it's way too close to the central star to be anything but! Must be pretty massive to hold together with that much radiation shining on it.
2006-09-23 08:05:23 · answer #1 · answered by Cirric 7 · 0⤊ 0⤋
If we are talking about HAT-P-1b, the planet found on 14th September, its mass is way below the threshold at which deuterium fusion can start, which is 12 times the mass of Jupiter.
Mass (m) 0.59 ± 0.04 x Mass of Jupiter
Radius (r) 1.36+0.11â0.09 x Radius of Jupiter
HAT-P-1b is an extrasolar planet orbiting the Sunlike star ADS 16402 B. It is located 450 light years away from Earth in the constellation Lacerta. As of 2006, HAT-P-1b has the largest radius and lowest density of any known extrasolar planet.
It might possibly acquire more mass by accretion, as its star has a companion and companion stars sometimes shed mass because of gravity, but it has a long way to go, yet to reach the 12-Jupiter-masses threshold.
2006-09-23 15:50:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
No.a brown dwarf it currently defined as being more than 12 Jupiter masses.this planet(which is called HAT-P-1)is much lighter than Jupiter.
2006-09-23 16:23:48 · answer #3 · answered by That one guy 6 · 0⤊ 0⤋
It's possible. We really haven't been watching it long enough to tell whether it is contracting from its own gravity (prior to stellar ignition) or whether the radiation from the primary is vaporizing it away (if the mass is insufficient to form a small star.)
2006-09-23 15:18:46 · answer #4 · answered by cdf-rom 7 · 0⤊ 0⤋
No.
2006-09-23 15:04:42 · answer #5 · answered by anonymous_20003 3 · 0⤊ 0⤋