GRE group: Astronomy

1. Astronomy (n): the scientific study of the sun, moon, stars, planets
   Astronomical (adj): relating to astronomy
                                 :  (of an amount) extremely large
   Analogy: ASTROLOGY: ASTRONOMY:: alchemy: chemistry (Old to new)
2. Astral (adj): relating to the stars
3. Aureole (n): sun’s corona; halo
4. Auroral (adj): pertaining to aurora borealis
5. Nova (n): Astronomy: a star showing a sudden large increase in brightness and then slowly returning to normal
6. Constellation (n): a group of stars forming a recognized pattern and typically named after a mythological or other figure
                             : a group of associated people or things
   Analogy: CONSTELLATION: STARS:: mosaic: tile (made up of )