Mesarthim
| Doppelstern Mesarthim (γ Arietis) | |||||||||||||||||||||||||||||
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| Beobachtungsdaten Äquinoktium: J2000.0, Epoche: J2000.0 | |||||||||||||||||||||||||||||
| AladinLite | |||||||||||||||||||||||||||||
| Sternbild | Widder | ||||||||||||||||||||||||||||
| Scheinbare Helligkeit | 4,75 mag | ||||||||||||||||||||||||||||
| Astrometrie | |||||||||||||||||||||||||||||
| Entfernung | 204 Lj | ||||||||||||||||||||||||||||
| Einzeldaten | |||||||||||||||||||||||||||||
| Namen | A; B | ||||||||||||||||||||||||||||
| Andere Bezeichnungen und Katalogeinträge | |||||||||||||||||||||||||||||
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Mesarthim („Der erste Stern des Widder“)[1] ist die Bezeichnung des Sterns γ Arietis (Gamma Arietis). Mesarthim ist ein schon in kleinen Fernrohren trennbarer Doppelstern mit einem Winkelabstand von 7,7 Bogensekunden (Positionswinkel: 0 Grad). Beide Komponenten sind vom Spektraltyp A0 V und besitzen eine scheinbare Helligkeit von +4,75 mag. Mesarthim ist ca. 204 Lichtjahre von der Erde entfernt (Hipparcos Datenbank).
Einzelnachweise
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