Sentences with phrase «13th magnitude star»
Follow - up radial velocity measurements with th... ▽ More We present 44 days of high duty cycle, ultra precise photometry of the 13th magnitude star Kepler - 5 (KIC 8191672, Teff = 6300 K, logg = 4.1), which exhibits periodic transits with a depth of 0.7 %.
https://arxiv.org/ Not exact matches
The star appears to have a dim optical stellar companion, possibly a red dwarf of 13th magnitude that is seen in telescopes but is probably not actually bound by gravity to Tau Ceti itself.
The cluster is 15 ′; in diameter and contains 120 stars, but in an 8 - inch telescope you can only see about 10 to 12 stars of the 12th and 13th magnitude.