Astronomy Questions

3 posts ยท Aug 13 2001 to Aug 13 2001

From: Rick Rutherford <rickr@s...>

Date: Mon, 13 Aug 2001 12:04:47 -0400

Subject: Astronomy Questions

Hi all,

I've been going through the star list I downloaded from Nyrath's web site, and
there are some odd notations for the spectra of some of the stars on the list.
Would some kind soul please explain the following:

k (specifically lowercase, as opposed to "K" stars, which seem to have much
higher luminosity), and k-m (also lowercase)?

dK5, dK6, dK8, dM4 -- could these be orange dwarfs and red dwarfs?

DA, DA3, DA4, DA5, DA6, DA9, DAP9, DAV4, DAwk, DXP5, DXP8, DXP9 -- all
of these are white dwarfs of some kind (because they all begin with "D"), but
what are the distinctions between them? Do some of them refer to pulsars,
neutron stars, and/or black holes?

Thank you very much!

From: Jerry Acord <acord@i...>

Date: Mon, 13 Aug 2001 14:29:04 -0400

Subject: Re: Astronomy Questions

> I've been going through the star list I downloaded from Nyrath's web

Which list?

From: Rick Rutherford <rickr@s...>

Date: Mon, 13 Aug 2001 14:40:14 -0400

Subject: RE: Astronomy Questions

Hello,

I'm using the Gliese Near Star Catalog version 3.0. I downloaded it from
http://www.projectrho.com/smap06.html