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Universe / Variable stars / Observational astronomy / Star types / SS Cygni / Apparent magnitude / Star / Magnitude / American Association of Variable Star Observers / Astronomy / Cygnus constellation / Space


Chandra X-Ray Observatory Variable Stars Stars appear to shine with a constant light; however, thousands of stars vary in brightness. The brightness that a star appears to have (apparent magnitude) from our perspective
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Document Date: 2009-04-07 11:06:46

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City

Cambridge / /

Company

Cepheid / /

Facility

Chandra X-Ray Observatory / /

IndustryTerm

http /

Movie

A.D. / /

OperatingSystem

Cygnus / /

Organization

American Association of Variable Star Observers / /

Person

Joseph Justus Scaliger / Julian Day / /

Position

photographer / astronomer / /

ProvinceOrState

British Columbia / Massachusetts / /

Technology

X-Ray / html / /

URL

http /

SocialTag