Published online by Cambridge University Press: 28 October 2009
AAVSO: American Association of Variable Star Observers
AGB: asymptotic giant branch (in the Hertzsprung–Russell diagram)
AGN: active galactic nucleus
ASAS: All-sky Automated Survey
AU: astronomical unit
BAA: British Astronomical Association
BC: bolometric correction
BV: Bamberg variable
CCD: charge-coupled device
CGRO: Compton Gamma-Ray Observatory (satellite)
CDS: Centre de Données astronomiques de Strasbourg
COROT: COnvection, ROtation, and planetary Transits (satellite)
CSV: Catalog of Suspected Variable Stars
CTTS: classical T Tauri stars
CV: cataclysmic variable
EUVE: Extreme Ultraviolet Explorer (satellite)
GAIA: Global Astrometric Interferometer for Astrophysics (satellite)
GALEX: GALaxy evolution EXplorer (satellite)
GCVS: General Catalogue of Variable Stars
GPB: Gravity Probe B (satellite)
GRB: gamma-ray burst
HC: heliocentric correction
HD: Henry Draper (catalogue);: HDE: HD Extension
H-R: Hertzsprung-Russell; H-R diagram;
HST: Hubble Space Telescope (satellite)
IAU: International Astronomical Union
IBVS: IAU Information Bulletin on Variable Stars
IR: infrared
IUE: International Ultraviolet Explorer (satellite)
JD: Julian Date
LMC: Large Magellanic Cloud (galaxy)
L∩: solar luminosity - 3.85 x 1026 Watts
MACHO: MAssive Compact Halo Object (also project of this name)
MOST: Microvariability and Oscillations of STars (satellite)
M∩: solar mass - 1.9891 x 1030 kg
NASA: National Aeronautics and Space Administration (US)
NSF: National Science Foundation (US)
NSV: New Catalog of Suspected Variable Stars
O - C: observed - computed (method)
OGLE: Optical Gravitational Lensing Experiment
PL: period–luminosity (relation)
PMS: pre-main sequence
RA: right ascension; Dec.: declination
RASNZ: Royal Astronomical Society of New Zealand ROSAT: Röntgen Satellite
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