Subdwarf
id:
subdwarf-162-6446244
title:
Subdwarf
text:
A subdwarf, sometimes denoted by "sd", is a star with luminosity class VI under the Yerkes spectral classification system. They are defined as stars with luminosity 1.5 to 2 magnitudes lower than that of main-sequence stars of the same spectral type. On a Hertzsprung–Russell diagram subdwarfs appear to lie below the main sequence. The term "subdwarf" was coined by Gerard Kuiper in 1939, to refer to a series of stars with anomalous spectra that were previously labeled as "intermediate white dwarf
brand slug:
wiki
category slug:
encyclopedia
description:
Star of luminosity class VI under the Yerkes spectral classification system
original url:
https://en.wikipedia.org/wiki/Subdwarf
date created:
2004-05-13T03:15:25Z
date modified:
2024-08-27T19:05:00Z
main entity:
{"identifier":"Q6220","url":"https://www.wikidata.org/entity/Q6220"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/6/67/HR-diag-no-text-2.svg","width":512,"height":585}
fields total:
13
integrity:
16