. . . . . . . . . . "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 \u221225.5 km/s."@en . . "V373 Cassiopeiae"@en . . . "15365452"^^ . . "\u4ED9\u540E\u5EA7V373\uFF0C\u53C8\u540DBD+56 3115\uFF0CHD 224151\u3001SAO 35899\u3001HR 9052\uFF0C\u662F\u4ED9\u540E\u5EA7\u7684\u4E00\u9897\u6052\u661F\uFF0C\u89C6\u661F\u7B49\u4E3A6\uFF0C\u4F4D\u4E8E\u9280\u7D93115.44\uFF0C\u9280\u7DEF-4.64\uFF0C\u5176B1900.0\u5750\u6807\u4E3A\u8D64\u7D9323h 50m 32.7s\uFF0C\u8D64\u7DEF+56\u00B0 -4.64\u2032 20\u2033\u3002"@zh . . . . "1159419.744"^^ . . . "0.0583"^^ . "B0.5II + B4III/V"@en . . . . "0.5266999999999999"^^ . . . . . . . "\u22124.098"@en . . . . . "\u4ED9\u540E\u5EA7V373"@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 \u221225.5 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 . . "7"^^ . . . "B"@en . . . . "\u4ED9\u540E\u5EA7V373\uFF0C\u53C8\u540DBD+56 3115\uFF0CHD 224151\u3001SAO 35899\u3001HR 9052\uFF0C\u662F\u4ED9\u540E\u5EA7\u7684\u4E00\u9897\u6052\u661F\uFF0C\u89C6\u661F\u7B49\u4E3A6\uFF0C\u4F4D\u4E8E\u9280\u7D93115.44\uFF0C\u9280\u7DEF-4.64\uFF0C\u5176B1900.0\u5750\u6807\u4E3A\u8D64\u7D9323h 50m 32.7s\uFF0C\u8D64\u7DEF+56\u00B0 -4.64\u2032 20\u2033\u3002"@zh . . . . . . . "7713"^^ . . . . . "V373 Cassiopeiae"@en . . . "Eclipsing?"@en . . . . . . "\u22120.101"@en . "J2000"@en . "6.03"^^ . . "A"@en . . . . . . . . . . . . . . . . . . . . . . . . . . "1079522984"^^ . . . . . . .