File:Perseus_constellation_map.svg · Wikimedia Commons · See Wikimedia Commons
Algol is a bright star in the constellation Perseus, also known as the "Demon Star," that consists of multiple stars orbiting together. It is historically significant because it was one of the earliest variable stars discovered—stars whose brightness visibly changes over time—making it important in the development of astronomy.
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Wikidata facts
- Constellation
- Perseus
- Distance from Earth
- 93
- Diameter
- 5750000
- Variable-star type
- eclipsing binary star
- Image
- Algol AB movie imaged with the CHARA interferometer - labeled.gif
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- Commons category
- Algol
- catalog code
- UBV M 9337
- spectral class
- B8
- parallax
- 36.27
- absolute magnitude
- -0.15
- color index
- -0.37
- radial velocity
- 4.0
- Commons gallery
- Algol
- described by source
- Encyclopædia Britannica 11th edition
- apparent magnitude
- 2.08
- stellar rotational velocity
- 67
- right ascension
- 47.04221855625
- declination
- 40.95564667028
- effective temperature
- 12445
- epoch
- J2000.0
- right ascension component of proper motion
- 11
- declination component of proper motion
- -28
- age estimated by a dating method
- 570
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
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Article · Nederlands
Algol (beta Persei) is een heldere drievoudige ster in het sterrenbeeld Perseus. Omdat de sterren elkaar regelmatig bedekken varieert de helderheid met een periode van ongeveer 3 dagen. Het is een van de bekendste veranderlijke sterren en draagt daarom onheilspellende namen zoals Gorgona, Gorgonea Prima, Duivelsster en El Ghoul.
Abstract from DBpedia / Wikipedia · CC BY-SA
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