self-luminous nebula

См. также в других словарях:

• Nebula — Neb u*la (n[e^]b [ u]*l[.a]), n.; pl. {Nebul[ae]} (n[e^]b [ u]*l[=e]). [L., mist, cloud; akin to Gr. nefe lh, ne fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. {Nebule}.] 1. (Astron.) A faint, cloudlike, self… …   The Collaborative International Dictionary of English

• diffuse nebula — Nebula Neb u*la (n[e^]b [ u]*l[.a]), n.; pl. {Nebul[ae]} (n[e^]b [ u]*l[=e]). [L., mist, cloud; akin to Gr. nefe lh, ne fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. {Nebule}.] 1. (Astron.) A faint, cloudlike …   The Collaborative International Dictionary of English

• spiral nebula — Nebula Neb u*la (n[e^]b [ u]*l[.a]), n.; pl. {Nebul[ae]} (n[e^]b [ u]*l[=e]). [L., mist, cloud; akin to Gr. nefe lh, ne fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. {Nebule}.] 1. (Astron.) A faint, cloudlike …   The Collaborative International Dictionary of English

• Nebulae — Nebula Neb u*la (n[e^]b [ u]*l[.a]), n.; pl. {Nebul[ae]} (n[e^]b [ u]*l[=e]). [L., mist, cloud; akin to Gr. nefe lh, ne fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. {Nebule}.] 1. (Astron.) A faint, cloudlike …   The Collaborative International Dictionary of English

• star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

• Cygnus X-1 — For other uses, see Cygnus X 1 (disambiguation). HDE 226868 HDE 226868 (not shown) is located next to the star η (lower center) in this map of constellation Cygnus …   Wikipedia

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium

• Star — For other uses, see Star (disambiguation) …   Wikipedia

• List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …   Wikipedia

• Milky Way Galaxy — Large spiral galaxy (roughly 150,000 light years in diameter) that contains Earth s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky defining the plane of… …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium