The Universe's oldest planet (so far)

Hey has there been any discussion about this object here before? It's
about a planet orbiting a pulsar and a white dwarf inside a globular
cluster. I know the story is a little old, but I found it fascinating. A
planet that's 12.7 billion years old! Just a billion years after the
Universe was banged out. The planet is in the pulsar system PSR B1620-26
in the globular cluster M4.

The fact that the whole solar system was captured by the pulsar which
already had a white dwarf around it, that it flung off to capture this
solar system. The solar system was so old it's not even clear if there
could've been rocky planets around it at one time, or if rocks hadn't
yet formed.

Yousuf Khan

SPACE.com -- Primeval Planet: Oldest Known World Conjures Prospect of
Ancient Life
"Astronomers have discovered the oldest known planet, a primeval world
12.7 billion years old that will force them to reconsider how and when
planets form. The discovery raises the prospect that life may have begun
far sooner than most scientists ever imagined."
http://www.space.com/scienceastronom..._030710-1.html

Dear Yousuf Khan:

On Mar 9, 2:42*pm, Yousuf Khan wrote:
Hey has there been any discussion about this object
here before? It's about a planet orbiting a pulsar and a
white dwarf inside a globular cluster. I know the story
is a little old, but I found it fascinating. A planet that'
s 12.7 billion years old! Just a billion years after the
Universe was banged out. The planet is in the pulsar
system PSR B1620-26 in the globular cluster M4.

http://en.wikipedia.org/wiki/PSR_B1620-26
.... a bit more current stuff.

The CMBR back then was really hot, so it might have done something
interesting a few billion years after formation.

David A. Smith

dlzc wrote:
http://en.wikipedia.org/wiki/PSR_B1620-26
... a bit more current stuff.

The CMBR back then was really hot, so it might have done something
interesting a few billion years after formation.

What did you have in mind?

Yousuf Khan

Dear Yousuf Khan:

"Yousuf Khan" wrote in message
...
dlzc wrote:
http://en.wikipedia.org/wiki/PSR_B1620-26
... a bit more current stuff.

The CMBR back then was really hot, so it might
have done something interesting a few billion
years after formation.

What did you have in mind?

I simply meant that the "cold sink" the planet would be able to
send heat to was very hot, so hot that life such as we know it,
even around volcanic vents, coudl not exist. A billion years
later, things could cool down.

David A. Smith

On Mar 9, 9:49*pm, "N:dlzc D:aol T:com \(dlzc\)"
wrote:
The CMBR back then was really hot, so it might
have done something interesting a few billion
years after formation.

What did you have in mind?

I simply meant that the "cold sink" the planet would be able to
send heat to was very hot, so hot that life such as we know it,
even around volcanic vents, coudl not exist. *A billion years
later, things could cool down.

According to this the approximate temperature of the CMBR 1 billion
years after BB was 10 Kelvin. Doesn't seem too hot to me.

CMB temperature calculation - Bad Astronomy and Universe Today Forum
http://www.bautforum.com/space-astro...lculation.html

Dear YKhan:

"YKhan" wrote in message
...
On Mar 9, 9:49 pm, "N:dlzc D:aol T:com \(dlzc\)"
wrote:
The CMBR back then was really hot, so it might
have done something interesting a few billion
years after formation.

What did you have in mind?

I simply meant that the "cold sink" the planet would
be able to send heat to was very hot, so hot that life
such as we know it, even around volcanic vents,
coudl not exist. A billion years later, things could
cool down.

According to this the approximate temperature of the
CMBR 1 billion years after BB was 10 Kelvin. Doesn't
seem too hot to me.

CMB temperature calculation - Bad Astronomy and
Universe Today Forum
http://www.bautforum.com/space-astro...lculation.html

Well, at 270,000 years, he doesn't get ~3000K (a data point we
know), but OK. Even 50K might not be too bad. Thanks for the
link.

David A. Smith