Astronomical Terms Used in : All Categories
| Nutation, Monthly + | The Wobble in the Stars: Understanding … | Galactic Astronomy |
| Nutation, Solar + | Nutation: The Wobble in the Stars The … | Galactic Astronomy |
| Oberon + | Oberon: A Distant Moon of Uranus Obero… | Solar System Astr… |
| Object Glass + | The Eye of the Telescope: Understanding… | Galactic Astronomy |
| Objects, Test + | The Stellar Gauntlet: How Objects Test … | Galactic Astronomy |
| Oblate Spheroid + | The Earth's Bulge: Understanding the Ob… | Galactic Astronomy |
| Obliquity of the Ecliptic + | The Obliquity of the Ecliptic: A Tilt T… | Galactic Astronomy |
| Observatory + | Peering into the Cosmos: A Look at Obse… | Astronomical Inst… |
| Occultation + | Unveiling the Cosmic Dance: Understandi… | Galactic Astronomy |
| Octans (the Octant) + | The Octans: A Celestial Lighthouse Guid… | Constellations |
| Offing + | The "Offing" in Stellar Astronomy: Beyo… | Galactic Astronomy |
| Okda + | Okda: A Name Lost to Time, But Not to t… | Stellar Astronomy |
| Olbers, Heinrich Wilhelm Matthias + | Heinrich Wilhelm Olbers: The Doctor Who… | Astronomers |
| Oort, Jan Hendrick + | Jan Hendrik Oort: A Stellar Trailblazer… | Astronomers |
| Opaque + | The Mysterious Veil: Opaque Matter in S… | Galactic Astronomy |
| Opera Glass + | Opera Glasses: A Surprise Weapon for St… | Galactic Astronomy |
| Ophiuchus (the Serpent-Bearer) + | Unveiling the Serpent-Bearer: Ophiuchus… | Constellations |
| Opposition + | Opposing Forces in the Celestial Dance:… | Galactic Astronomy |
| Orbit + | The Dance of the Stars: Understanding O… | Galactic Astronomy |
| Orientation, The direction of a map + | Charting the Cosmos: Orientation in Ste… | Galactic Astronomy |
Most Viewed
- Alpha Centauri The closest star sy… Stellar Astronomy
- Astronomical Light Curves Graphs showing the… Galactic Astronomy
- Andromeda Galaxy A spiral galaxy loc… Galactic Astronomy
- Altair A name applied to t… Stellar Astronomy
- Alshain A name sometimes ap… Stellar Astronomy
