| actinoid |
having a radial or star-shaped form, as certain sea creatures. |
| Aldebaran |
an orange binary star in the constellation Taurus, having a combined magnitude of 0.9. |
| Algol |
an eclipsing binary star in the constellation Perseus, having a magnitude that varies between 2.3 and 3.4. |
| all-star |
a player on an all-star team. [1/2 definitions] |
| Alpha Centauri |
a double star in the constellation Centaurus, the closest star to the solar system, having a combined magnitude of -0.3. |
| Alpheratz |
a bright star in the constellations Pegasus and Andromeda, having a magnitude of 2.0. |
| Altair |
the brightest star in the constellation Aquila, having a magnitude of 0.8. |
| Andromeda |
an autumn constellation in the northern sky, located between Perseus and Pegasus, with which it shares the bright triple star Alpheratz, and containing a spiral galaxy. [1/2 definitions] |
| Antares |
a red binary star in the constellation Scorpius, having a combined magnitude of 1.0. |
| Aquila |
a summer constellation in the northern sky, located between Lyra and Capricornus and the bright star Altair; Eagle. |
| Arcturus |
an orange star in the constellation Boötes, having a magnitude of zero. |
| astro- |
star. |
| Auriga |
a winter constellation in the northern sky, located between Perseus and Gemini and containing the bright triple star Capella and several star clusters; Charioteer. |
| Betelgeuse |
a red variable star in the constellation Orion, having a magnitude of 0.7. |
| binary star |
two stars orbiting around a common center of gravity and often appearing as one to the unaided sight or through a telescope; double star. |
| black hole |
a hypothetical region or body in space, possibly the remnants of a collapsed star, with such a strong gravitational pull that neither light nor matter can escape. |
| Boötes |
a spring constellation in the northern sky, located between Corona Borealis and Virgo and containing the bright, orange star Arcturus; Herdsman. |
| borage |
a plant with bright blue, star-shaped flowers and hairy leaves and stems that are sometimes used as seasoning. |
| caltrop |
any of various plants that have spiky or star-shaped flowers or other parts. [1/2 definitions] |
| Canis Minor |
a winter constellation in the northern sky, located between Monoceros and Gemini and containing the bright star Procyon; Little Dog. |
| Capella |
a yellow triple star in the constellation Auriga, having a magnitude of 0.1. |