microarcsecond
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microarcsecond — (µas) a unit of angle measurement sometimes used in astronomy. The microarcsecond equals 10 6 arcsecond or about 4.8481 picoradian … Dictionary of units of measurement
MAXIM — Microarcsecond X ray Imaging Mission Contributor: GSFC … NASA Acronyms
Minute of arc — This article is about geometry. For firearms terminology, see Minute of Angle. A minute of arc, arcminute, or minute of angle (MOA), is a unit of angular measurement equal to one sixtieth (1⁄60) of one degree. In turn, a second of arc or… … Wikipedia
SI prefix — SI prefixes in everyday use Text Symbol Factor tera T 1000000000000 giga G 1000000 … Wikipedia
Metrology — This article is about the science of measurement. For the study of weather see Meteorology. A scientist stands in front of a microarcsecond (1 millionth of 1 arcsecond or 1 millionth of 1/3600 degree) testbed. Metrology is the science of… … Wikipedia
Very Large Telescope — VLT redirects here. For other uses, see VLT (disambiguation). Very Large Telescope The four Unit Telescopes that form the VLT together with th … Wikipedia
James Webb Space Telescope — General information Organization NASA[1], with significant contributions from ESA and CSA … Wikipedia
Space Interferometry Mission — Infobox Space telescope name = Space Interferometry Mission (SIM) caption = Artist s concept of the SIM telescope in space organization = NASA / JPL major contractors = Northrop Grumman alt names = SIM PlanetQuest nssdc id = location = orbit type … Wikipedia
Gaia mission — Gaia is a European Space Agency (ESA) astrometry space mission, and a successor to the ESA Hipparcos mission. It was included within the context of the ESA Horizon 2000 Plus long term scientific programme in 2000. It is expected to be launched by … Wikipedia
Quasar J1819+3845 — Quasar name = QSO J1819+3845 epoch = J2000 ra = RA|18|19|26.55 dec = DEC|+38|45|01.8 [http://simbad.u strasbg.fr/simbad/sim id?protocol=html Ident=QSO+J1819%2B3845+ NbIdent=1 Radius=2 Radius.unit=arcmin submit=submit+id Simbad] ] constellation… … Wikipedia
