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!