Pi4 Orionis
{{{Planeten}}}
| Doppelstern π4 Orionis | ||||||||||||||||||||||||||||||||
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| Beobachtungsdaten Äquinoktium: J2000.0, Epoche: J2000.0 | ||||||||||||||||||||||||||||||||
| AladinLite | ||||||||||||||||||||||||||||||||
| Sternbild | Orion | |||||||||||||||||||||||||||||||
| Scheinbare Helligkeit [1] | 3,68 mag | |||||||||||||||||||||||||||||||
| Astrometrie | ||||||||||||||||||||||||||||||||
| Radialgeschwindigkeit | (+23 ± 4) km/s[2] | |||||||||||||||||||||||||||||||
| Parallaxe | (4,03 ± 0,38) mas | |||||||||||||||||||||||||||||||
| Entfernung | (809 ± 76) Lj ((248 ± 23) pc) | |||||||||||||||||||||||||||||||
| Eigenbewegung | ||||||||||||||||||||||||||||||||
| Rektaszensionsanteil: | (−2,21 ± 0,22) mas/a | |||||||||||||||||||||||||||||||
| Deklinationsanteil: | (+0,85 ± 0,12) mas/a | |||||||||||||||||||||||||||||||
| Orbit | ||||||||||||||||||||||||||||||||
| Periode | 9,52 d | |||||||||||||||||||||||||||||||
| Exzentrizität | 0,033 ± 0,023 | |||||||||||||||||||||||||||||||
| Epoche des Periastrons | ca. JD 2418276 | |||||||||||||||||||||||||||||||
| Argument der Periapsis | 165° ± 40° | |||||||||||||||||||||||||||||||
| Einzeldaten | ||||||||||||||||||||||||||||||||
| Namen | A; B | |||||||||||||||||||||||||||||||
| Andere Bezeichnungen und Katalogeinträge | ||||||||||||||||||||||||||||||||
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π4 Orionis (Pi4 Orionis / π4 Ori, auch 3 Orionis) ist ein spektroskopischer Doppelstern im Sternbild Orion. Er ist rund 800 Lichtjahre von der Erde entfernt. Die Umlaufperiode des Systems beträgt 9,5 Tage.
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