Orbiting Astronomical Observatory
[ar] المرصد الفلكي المداري
[de] Orbiting Astronomical Observatory
[es] Orbiting Astronomical Observatory
[fr] Orbiting Astronomical Observatory
[gl] Orbiting Astronomical Observatory
[he] מצפה כוכבים מסלולי
[hu] Orbiting Astronomical Observatory
[id] Orbiting Astronomical Observatory
[ig] Ebe Na-enyocha Ihe Ndị Dị na Ụzọ Mmiri
[it] Orbiting Astronomical Observatory