Good candidate for follow-up?

• by biggsjrex moderator

  TYC 4024-1836-1 -- Be Star. Spectal type shown in SIMBAD is B1IV-V:ep, but another (most?) recent spectral type listed in VizieR is wG8III. Any interest in follow-up?

  Posted June 12, 2014 2:00 AM

• by voyager1682002 moderator

  B1IV-V - Catalogue of Stellar Spectral Classifications (Skiff, 2009-2014)
  http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ539919f4710a&-out.add=.&-source=B/mk/mktypes&recno=29468
  Most catalogues indicate it's a Be star

  Posted June 12, 2014 4:17 AM

• by Pini2013 translator, moderator

  If it's a Be, is not good.The G8III spectral is from Tycho2, maybe a yellow supergiant after leaving the main sequence, see this: Supergiant stars often swing between O or B (blue) and K or M (red). While they do this, they do not stay for long in the yellow supergiant G classification as this is an extremely unstable place for a supergiant to be.

  Posted June 12, 2014 8:32 PM