Lewis & Short

sīdĕrĕus, a, um, adj. [sidus].

  1. I. Of or belonging to the constellations or to the stars, starry (poet.; esp. freq. in Ov.): caelum, Ov. M. 10, 140; for which: arx mundi, id. Am. 3, 10, 21: sedes, id. A. A. 2, 39; Verg. A. 10, 3: caput (Noctis), Ov. M. 15, 31: dea, i. e. the moon, Prop. 3 (4), 20, 18: aethra, Verg. A. 3, 586: ignes, i. e. the stars, Ov. M. 15, 665; cf. Canis, id. F. 4, 941: conjux, i. e. Ceyx (as the son of Lucifer), id. M. 11, 445: Pedo, who discoursed of the stars, id. P. 4, 16, 6: artes, Stat. S. 2, 2, 112: sidereā qui temperat omnia luce (sol), id. ib. 4, 169; so, κατ’ ἐξοχήν, of the sun: ignes, id. ib. 1, 779: aestus, id. ib. 6, 341: deus, i. e. the sun, Mart. 12, 60, 2: colossus, dedicated to the sun, id. Spect. 2, 1: polus, Val. Fl. 4, 643.
  2. II. Transf.
    1. A. Heavenly, divine: arcus, Col. 10, 292: sanguis, of gods, Val. Fl. 7, 166.
    2. B. In gen., bright, glittering, shining, excellent, etc. (freq.): Venus sidereos diffusa sinus, Val. Fl. 2, 104: artus (Veneris), Stat. S. 1, 2, 141: ore (Pollux), Val. Fl. 4, 490: vultus (Bacchi), Sen. Oedip. 409 et saep.: (Aeneas) Sidereo dagrans clipeo et caelestibus armis, Verg. A. 12, 167: jubae (cassidis), Claud. in Eutrop. 1, 351: ministri, Mart. 10, 66, 7; cf. mares, id. 9, 37, 10: vates Maro, brilliant, divine, Col. 10, 434.