Nebulosity
41Astronomy — (from the Greek words astron (ἄστρον), star , and nomos (νόμος), law ) is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth s atmosphere (such as the cosmic… …
42Variable star — A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star s actual luminosity, or to variations in the amount of the star s light that is blocked from… …
43Giuseppe Piazzi — Infobox Scientist name = PAGENAME box width = image width =150px caption = PAGENAME birth date = July 7 1746 birth place = Ponte in Valtellina death date = July 22 1826 death place = Naples residence = citizenship = nationality = Sicilian… …
44Triangulum Galaxy — Messier 33 Observation data (J2000 epoch) Pronunciation /traɪˈæŋɡjʉləm/ …
45Helix Nebula — For the different but similarly named nebula, see Double Helix Nebula. Eye of God redirects here. For other uses, see Eye of God (disambiguation). Helix Nebula Infrared image of the Helix Nebula, taken by the Spitzer space telescope, 2007 …
46H II region — An H II region (also known as emission nebula) is a cloud of glowing gas and plasma, sometimes several hundred light years across, in which star formation is taking place. Young, hot, blue stars which have formed from the gas emit copious amounts …
47Auriga (constellation) — Infobox Constellation name = Auriga abbreviation = Aur genitive = Aurigae symbology = the Charioteer RA = 6 dec= +40 areatotal = 657 arearank = 21st numbermainstars = 5, 8 numberbfstars = 65 numberstarsplanets = 6 numberbrightstars = 4… …
48Rosette Nebula — The Rosette Nebula (H Alpha) Observation data: J2000.0 epoch Type Emission …
49Pinwheel Galaxy — For other uses, see Pinwheel Galaxy (disambiguation). Pinwheel Galaxy Observation data (J2000 epoch) Constellation …
50Eskimo Nebula — NGC 2392, the Eskimo Nebula by HST. Credit: NASA/ESA/STScI Observation data (Epoch J2000) …
