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HY Velorum is a binary star system in the … HY Velorum is a binary star system in the southern constellation of Vela. It is a dim star but visible to the naked eye with an apparent visual magnitude of 4.83. The distance to this system, as estimated from its annual parallax shift of 7.1 mas, is 460 light years. HY Vel most likely forms a gravitationally bound pair with the magnitude 5.45 binary system (HD 74535); both are members of the IC 2391 open cluster. As of 1998, HY Vel and KT Vel had an angular separation of 76.1″ along a position angle of 311°. This is a single-lined spectroscopic binary system with an orbital period of 8.4 days and an eccentricity of 0.24. The visible component has an a sin i value of 0.006 AU, where a is the semimajor axis and i is the (unknown) orbital inclination to the line of sight. The primary is a slowly pulsating B-type star having at least three pulsational modes, with the dominant mode showing a frequency of 0.64472 cycles per day, corresponding to the catalogued period of 1.55106 days. It has a stellar classification of B3 IV, matching a B-type subgiant star.of B3 IV, matching a B-type subgiant star.
, HD74560 — хімічно пекулярна зоря спектрального класу B3, що має видиму зоряну величину в смузі V приблизно 4,8.Вона розташована на відстані близько 479,6 світлових років від Сонця.
, 船帆座HY，又名CP-52 1607，HD 74560、SAO 236205、HR 3467，是船帆座的一颗恒星，视星等为4.86，位于銀經270.6，銀緯-6.66，其B1900.0坐标为赤經8h 39m 33.3s，赤緯-52° -6.66′ 17″。
, HD 74560 è una stella bianco-azzurra nella sequenza principale di magnitudine 4,82 situata nella costellazione delle Vele. Dista 480 anni luce dal sistema solare e si trova sul lato orientale dell'ammasso aperto IC 2391.
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| rdfs:comment |
HY Velorum is a binary star system in the … HY Velorum is a binary star system in the southern constellation of Vela. It is a dim star but visible to the naked eye with an apparent visual magnitude of 4.83. The distance to this system, as estimated from its annual parallax shift of 7.1 mas, is 460 light years. HY Vel most likely forms a gravitationally bound pair with the magnitude 5.45 binary system (HD 74535); both are members of the IC 2391 open cluster. As of 1998, HY Vel and KT Vel had an angular separation of 76.1″ along a position angle of 311°.n of 76.1″ along a position angle of 311°.
, HD 74560 è una stella bianco-azzurra nella sequenza principale di magnitudine 4,82 situata nella costellazione delle Vele. Dista 480 anni luce dal sistema solare e si trova sul lato orientale dell'ammasso aperto IC 2391.
, HD74560 — хімічно пекулярна зоря спектрального класу B3, що має видиму зоряну величину в смузі V приблизно 4,8.Вона розташована на відстані близько 479,6 світлових років від Сонця.
, 船帆座HY，又名CP-52 1607，HD 74560、SAO 236205、HR 3467，是船帆座的一颗恒星，视星等为4.86，位于銀經270.6，銀緯-6.66，其B1900.0坐标为赤經8h 39m 33.3s，赤緯-52° -6.66′ 17″。
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船帆座HY
, HY Velorum
, HD74560
, HD 74560
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