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- V373 Cas is a binary star system in the northern constellation Cassiopeia. It is a suspected eclipsing binary with an apparent visual magnitude that decreases from a baseline of 6.03 down to 6.13. The system is located at a distance of approximately 6,200 light years from the Sun, but is drifting closer with a radial velocity of around −25.5 km/s. The binary nature of this system was announced in 1912 by Walter S. Adams. It is a double-lined spectroscopic binary with an orbital period of 13.4 days and an eccentricity of 0.13. The system was found to be variable in 1958 by , and the variability cycle was shown to be related to the orbital period. It has been described as a heartbeat star rather than an eclipsing system. This is a type of pulsating star where the pulsations are induced by the tidal attraction of a close companion. V373 Cas is composed of two hot blue-white giant stars that have exhausted their core hydrogen and expanded off the main sequence. Lyubimkov and colleagues analysed spectral and radial velocity to calculate that the stars were ~19 and ~15 times as massive as the Sun and the age of the system is around 7-8 million years old. The primary component is the more evolved and now comes close to filling its Roche lobe when it is at periastron. (en)
- 仙后座V373，又名BD+56 3115，HD 224151、SAO 35899、HR 9052，是仙后座的一颗恒星，视星等为6，位于銀經115.44，銀緯-4.64，其B1900.0坐标为赤經23h 50m 32.7s，赤緯+56° -4.64′ 20″。 (zh)
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- 仙后座V373，又名BD+56 3115，HD 224151、SAO 35899、HR 9052，是仙后座的一颗恒星，视星等为6，位于銀經115.44，銀緯-4.64，其B1900.0坐标为赤經23h 50m 32.7s，赤緯+56° -4.64′ 20″。 (zh)
- V373 Cas is a binary star system in the northern constellation Cassiopeia. It is a suspected eclipsing binary with an apparent visual magnitude that decreases from a baseline of 6.03 down to 6.13. The system is located at a distance of approximately 6,200 light years from the Sun, but is drifting closer with a radial velocity of around −25.5 km/s. (en)
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- V373 Cassiopeiae (en)
- 仙后座V373 (zh)
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