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BL Boötis (abbreviated to BL Boo) is a pulsating star in the constellation Boötes. It is the prototype of a class of anomalous Cepheids which is intermediate in the H-R diagram between the type I classical Cepheids and the type II Cepheids.
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star thought stars bl boötis variable anomalous spectrum luminosity cluster rr lyrae around merger magnitude cepheid cepheids sun boötes mass
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| BL Boötis | Apparent magnitude (V) | 14.45 - 15.10 | 1.00 | infobox |
| BL Boötis | B−V color index | 0.12 - 0.25 | 1.00 | infobox |
| BL Boötis | Constellation | Boötes | 1.00 | infobox |
| BL Boötis | Declination | +28° 29′ 12.28″ | 1.00 | infobox |
| BL Boötis | Right ascension | 14h 05m 40.463s | 1.00 | infobox |
| BL Boötis | Spectral type | kA2/3hA9/F0V | 1.00 | infobox |
| BL Boötis | U−B color index | 0.16 - 0.05 | 1.00 | infobox |
| BL Boötis | Variable type | Anomalous Cepheid | 1.00 | infobox |
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