where can I get informations about Polaris?

On Sun, 28 Sep 2003 06:32:15 +0100, Bob Weber wrote:

"Carl" wrote in message
. ..
Hi, I have been trying to get informations about Polaris, such as how
far it is, what the surface temperature is, what material it is made
from, and the close up pictures of how Polaris looks like. I tried to
find it on the net, but could not find any websites for it.

Proper Names
Polaris

Spectral Class
F7 Bright Yellow Supergiant


Polaris is also a Cepheid variable with a pulse period of 3.95 days. The
pulse magnitude has dropped from 0.12 mag to 0.03 mag over a 50 year
period. It is suggested that it may stop pulsating and change from a
Cepheid to an ordinary non-variable star.

Sky & Telescope (April) 1995; 89 (4): 10

--

Gautam Majumdar

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Odysseus wrote in alt.astronomy:


(BTW, it's "Hipparcos" for the satellite, with only one H.)


You're RIGT!

--
CHeeBHee


Uxbridge: "By God, sir, I've lost my leg!"
Wellington: "By God, sir, so you have!"


Google CeeBee @ www.geocities.com/ceebee_2

Odysseus wrote in alt.astronomy:


(BTW, it's "Hipparcos" for the satellite, with only one H.)


You're RIGT!

--
CHeeBHee


Uxbridge: "By God, sir, I've lost my leg!"
Wellington: "By God, sir, so you have!"


Google CeeBee @ www.geocities.com/ceebee_2

CeeBee wrote:

You're RIGT!

That's better: your Hs should now be back in equilibrium with the
rest of the universe.

--
Odysseus

CeeBee wrote:

You're RIGT!

That's better: your Hs should now be back in equilibrium with the
rest of the universe.

--
Odysseus