Asteropa ( born Asterope , or Steropa ) - 2 stars (21 Taurus and 22 Taurus) in the Pleiades cluster .
| Asteropa I (21 Taurus) | |||
|---|---|---|---|
| Star | |||
 Pleiades star cluster | |||
| Observational data ( Epoch J2000.0 ) | |||
| Type of | B8VC | ||
| Right ascension | 03 h 45 m 54.4 s | ||
| Declination | + 24 ° 33 ′ 16.24 ″ | ||
| Distance | 440 over the years | ||
| Visible magnitude ( V ) | +5.76 | ||
| Constellation | Taurus | ||
| Astrometry | |||
| Parallax (π) | 8.77 ± 0.54 mas | ||
| Absolute magnitude (V) | +0.11 | ||
| Specifications | |||
| Spectral class | |||
| physical characteristics | |||
| Weight | 3.5 M ☉ | ||
| Temperature | 12000 ± 500 K | ||
| Luminosity | 77.3 L ☉ | ||
| |||
| Information in databases | |||
| SIMBAD | data | ||
| Asteropa II (22 Taurus) | |||
|---|---|---|---|
| Star | |||
| Observational data ( Epoch J2000.0 ) | |||
| Type of | A0Vn | ||
| Right ascension | 03 h 46 m 02.90043 s | ||
| Declination | + 24 ° 31 ′ 40.4331 ″ | ||
| Distance | 440 sv. years old | ||
| Visible magnitude ( V ) | +6.4 | ||
| Constellation | Taurus | ||
| Astrometry | |||
| Parallax (π) | 8.58 ± 0.56 mas | ||
| Absolute magnitude (V) | +0.75 | ||
| Specifications | |||
| Spectral class | |||
| physical characteristics | |||
| Weight | 2.8 M ☉ | ||
| Temperature | 12000 ± 500 K | ||
| Luminosity | 42.86 L ☉ | ||
| |||
| Information in databases | |||
| SIMBAD | data | ||
Asteropa consists of two stars: 21 Taurus and 22 Taurus. One name for two stars appeared at a time when the technical capabilities for observations were significantly worse than they are now, and it was impossible to discern that there were 2 stars in a given region of the celestial sphere. The distance between the stars is 0.04 °.
Content
Physical characteristics
Stars are about 440 light-years away from Earth . 21 Taurus is a white and blue dwarf spectral class B with an apparent magnitude +5.76. 22 Taurus refers to the white stars of the main sequence with an apparent magnitude +6.4.
Origin of title
Steropa - in Greek mythology, one of the Pleiad . Ares' beloved, who gave birth to his son Enomai [2] (according to other sources, is Enomai's spouse, mother of Hippodamia [3] ).
Notes
- ↑ 1 2 SIMBAD Astronomical Database
- ↑ Ovid. Fasti IV 172; Hyginus. Myths 84; Hyginus. Astronomy II 21, 3
- ↑ Pseudo-Apollodor. Mythological Library III 10, 1; Pausanias. Description of Hellas V 10, 6
See also
- Pleiades in mythology
Literature
- Asteropa // Great Soviet Encyclopedia : in 66 tons (65 tons and 1 extra) / Ch. ed. O. Yu. Schmidt . - M .: Soviet Encyclopedia , 1926-1947.