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NO Apodis
NO Apodis is a solitary, red hued variable star located in the southern circumpolar constellation Apus. It has an average apparent magnitude of 5.86, allowing it to be faintly seen with the naked eye. The object is relatively far at a distance of 790 light years but is drifting closer with a heliocentric radial velocity . NO Apodis has a stellar classification of M3 III, indicating that it is a red giant. It is currently on the asymptotic giant branch, fusing hydrogen and helium shells around an inert carbon stellar core, core. At present it has 1.63 times the mass of the Sun and an enlarged radius of . It shines with a bolometric luminosity 1,408 times that of the Sun from its photosphere at an effective temperature of . NO Apodis is classified as a semiregular variable of unknown subtype. Observations from Tabur et. al. (2009) reveal it to have two periods, both lasting 26-7 days. During this timeframe, the star flucates between 5.71 and 5.95 in the apparent magnitude, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Star Designation
In astronomy, a variable star designation is a unique identifier given to variable stars. It uses a variation on the Bayer designation format, with an identifying label (as described below) preceding the Latin genitive of the name of the constellation in which the star lies. See List of constellations for a list of constellations and the genitive forms of their names. The identifying label can be one or two Latin letters or a ''V'' plus a number (e.g. V399). Examples are R Coronae Borealis, YZ Ceti, V603 Aquilae. Naming The current naming system is: *Stars with existing Greek letter Bayer designations are not given new designations. *Otherwise, start with the letter R and go through Z. *Continue with RR...RZ, then use SS...SZ, TT...TZ and so on until ZZ. *Use AA...AZ, BB...BZ, CC...CZ and so on until reaching QZ, omitting J in both the first and second positions.Most of this system was invented in Germany, which was still on Fraktur at the time, in which the majuscules "I" and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
