Abstract: The HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey searches for dust near the habitable zones (HZs) around nearby,
bright main sequence stars.
Our overall detection rate is 18 %, including four new detections, among which are... ▽ More The HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey searches for dust near the habitable zones (HZs) around nearby,
bright main sequence stars.
Not exact matches
A
main sequence star gradually brightens as it ages, and Beta Pictoris would have to be about half a billion years old for it to have become as
bright as it is.
Iota Persei is a yellow - orange
main sequence dwarf
star of spectral and luminosity type G0 V. Bigger and
brighter than Sol, the
star may have as much as 1.3 times Sol's mass, around 1.08 times its diameter (Pasinetti - Fracassini et al, 2001; Blackwell and Lynas - Gray, 1994; and Johnson and Wright, 1983, page 653), and 2.2 times its luminosity.
Altair has the New Suspected Variable designation NSV 24910 and is unusually
bright for its spectral type and so may be becoming a subgiant
star that is beginning to evolve off the
main sequence, as it begins to fuse the increasing amounts of helium «ash» mixed with hydrogen at its core.
Although we do not detect the predicted 2 - 5 minute transit timing... ▽ More K2 - 138 is a moderately
bright (V = 12.2, K = 10.3)
main sequence K -
star observed in Campaign 12 of the NASA K2 mission.
«The TESS legacy will be a catalog of the nearest and
brightest main -
sequence stars hosting transiting exoplanets, which will forever be the most favorable targets for detailed investigations,» added Ricker.
«The TESS legacy will be a catalog of the nearest and
brightest main -
sequence stars hosting transiting exoplanets, which will forever be the most favorable targets for detailed investigations,» Ricker said.
Six hundred and twenty light - years from Earth, in the constellation Cygnus, a
bright, young, Type - A, blue,
main -
sequence star designated KELT - 9 burns brightly.
According to Professor Jim Kaler at the University of Illinois» Department of Astronomy, Rana started life as a
main sequence F8 dwarf (somewhat hotter and
brighter than Sol with slightly greater mass) around 7.5 billion years ago, but core hydrogen fusion has ceased causing the
star to expand and cool as an active subgiant before becoming much
brighter and larger «as a true giant
star» through core helium fusion.
Achernar is a blue - white
main sequence star of spectral and luminosity type B3 Vpe (Hiltner et al, 1969), that previously had been classed as
bright as a subgiant.
Hence, Sirius B was once
brighter than Regulus A, currently a B7
main -
sequence star.
[7] Like the other
stars in the group, it is a
main sequence star not unlike the Sun, although somewhat hotter,
brighter and larger.
Luminosity class 0 or Ia + is used for hypergiants, class I for supergiants, class II for
bright giants, class III for regular giants, class IV for sub-giants, class V for
main -
sequence stars, class sd (or VI) for sub-dwarfs, and class D (or VII) for white dwarfs.
Marginal cases are allowed; for example, a
star may be either a supergiant or a
bright giant, or may be in between the subgiant and
main -
sequence classifications.
On April 25, 2008, EV Lacertae emitted the
brightest flare by a
main -
sequence star observed in the Solar neighborhood up to that date (more).