| STARPUPIL | The best astronomy student? (4,5) |
| STARPUPILS | The best astronomy students? |
| NYE | Astronomy student of Sagan's at Cornell |
| ECLIPTIC | In astronomy, the great circle on the celestial sphere representing the apparent annual path of the sun relative to the stars (8) |
| TRANSIT | In astronomy, the passage of a planet across the face of the Sun or the Moon (7) |
| HA | (astronomy) The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing. |
| ALMAGEST | A work on astronomy, compiled by Ptolemy in the 2nd century AD, containing a description of the geocentric system of the universe and a star catalogue |
| VELA | In astronomy and stargazing, the Sails constellation once forming part of Argo Navis with Carina the Hull and Puppis the Ship's Stern (4) |
| YLEM | In the Big Bang theory in astronomy, the primordial matter of the universe (4) |
| EQUINOX | In astronomy, a point on the celestial sphere at which the ecliptic intersects the celestial equator |
| URANIA | In Greek astronomy, the muse of astronomy (6) |
| NEBULA | The Crab or the Horsehead, in astronomy |
| SYZYGIES | Conjunctions, especially in astronomy; eg the moon and the sun (8) |
| GAZING | Following star for astronomy, the unknown one in the group (6) |
| NEBULAE | In astronomy and in the plural, what are dark patches in the sky consisting of interstellar gases an |
| NADIR | In astronomy, point of the heavens diametrically opposite the zenith (5) |
| ZENITH | In astronomy, the point on the celestial sphere vertically above an observer |
| NECK | Area of the body for a cravat, muffler or stock; or, one of the 28 mansions in Chinese astronomy (4) |
| ALBEDO | In astronomy, the proportion of incident light reflected by the surface of a planet or moon |
| TERMINATOR | Boundary between the illuminated and darkened part of the moon, in astronomy |
