(in visual photometry)
111Extrasolar planet — Planet Fomalhaut b (inset against Fomalhaut s interplanetary dust cloud) imaged by the Hubble Space Telescope s coronagraph (NASA photo) …
112Sunspot — A sunspot is a region on the Sun s surface (photosphere) that is marked by intense magnetic activity, which inhibits convection, forming areas of reduced surface temperature. They can be visible from Earth without the aid of a telescope. Although …
113Brown dwarf — Brown dwarfs are sub stellar objects which are too low in mass to sustain hydrogen 1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no… …
114Pluto — This article is about the dwarf planet. For other uses, see Pluto (disambiguation). Pluto   …
115Variable 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… …
116Orion Nebula — The entire Orion Nebula in visible light. Credit: NASA/ESA Observation data: J2000 epoch …
117Triangulum Galaxy — Messier 33 Observation data (J2000 epoch) Pronunciation /traɪˈæŋɡjʉləm/ …
118Wolf 359 — Starbox begin name=Wolf 359 Starbox image caption= Wolf 359 is shown near the ecliptic in the southern region of Leo. It is invisible to the naked eye.Starbox observe epoch=J2000 constell=Leo ra=RA|10|56|28.99cite web url=http://simbad.u… …
119Hipparcos — Infobox Space telescope name = Hipparcos caption = Artist s conception of Hipparcos in space organization = European Space Agency major contractors = alt names = nssdc id = location = orbit type = Geostationary transfer orbit height = 507 to… …
120Astronomical spectroscopy — is the technique of spectroscopy used in astronomy. The object of study is the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other celestial objects. Spectroscopy can be used to derive many… …
