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S-2 (cell Line)
S2 or S II may refer to: Science and technology * S2 (star), Milky Way galaxy * S/2007 S 2, a natural satellite of Saturn * Disulfur (S2), an allotrope of sulfur * S2: Keep out of the reach of children, a safety phrase in chemistry * S2 steel (shock resisting steel) * S2 map projection, a map projection created at Google Mathematics * S2, the two-dimensional sphere * S2, the permutation group on two elements Biology and medicine * British NVC community S2, a swamps and tall-herb fens community in the British National Vegetation Classification system * Schneider 2 cells, or S2 cells, a commonly used ''Drosophila'' cell line * Secondary somatosensory cortex, a brain area in the parietal cortex * Sacral spinal nerve 2, a spinal nerve of the sacral segment * Schedule 2, an Australian legal category assigned to drugs; See Standard for the Uniform Scheduling of Medicines and Poisons * S2, the second sacral vertebrae * S2 (heart sound), a sound in cardiac auscultation * ATC code S0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S2 (star)
S2, also known as S0–2, is a star in Sagittarius A* cluster, the star cluster close to the supermassive black hole Sagittarius A*, Sagittarius A* (Sgr A*), orbiting it with a period of 16.0518 years, a semi-major axis of about 970 astronomical unit, au, and a pericenter distance of 17 Light-hour, light hours (18 Metre#SI prefixed forms of metre, Tm or 120 astronomical unit, au) – an orbit with a period only about 30% longer than that of Jupiter around the Sun, but coming no closer than about four times the distance of Neptune from the Sun. The mass when the star first formed is estimated by the European Southern Observatory (ESO) to have been approximately . Based on its spectral type (B0V ~ B3V), it probably has a mass of 10 to 15 solar masses. Its changing apparent position has been monitored since 1995 by two groups (at UCLA and at the Max Planck Institute for Extraterrestrial Physics) as part of an effort to gather evidence f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
