Sentences with phrase «red dwarf companion»

Aldebaran has a relatively distant, red dwarf companion B that is currently separated by about 607 AUs (semi-major axis of 30.4» at 65.1 ly).

Its red dwarf companion B was first detected through astrometric perturbations of Star A's motion in 1976 by Sarah Lee Lippincott and J.J. Lanning.

In 2006, astronomers discovered a very dim («mid-range»), red dwarf companion to HD 189733 A of spectral and luminosity type M V. Observed at a separation of 216 AUs from Star A, the companion star has a clockwise orbit that is nearly perpendicular to the orbital plane of transiting planet b around Star A (HD 189733 b or Ab).

Discoveries of Sun - like stars with host exoplanets as well as red dwarf companions have been common, and many appear to be old and stable enough for life to have evolved (RAS new releases of April 16 and April 19, 2011; and University of St. Andrews press release).

Not exact matches

In all, the team found 17 candidate brown dwarf companions to red dwarf stars, one brown dwarf pair, and one brown dwarf with a planetary companion.

The star also has a small companion, a red dwarf star that lies about 1000 times as far away as Earth's distance from the sun.

This red dwarf pulls on the 55 Cancri system, and because all five planets in the system — and their host star — are such a tight - knit family, they behave like ice skaters holding hands, so that the companion star's tugs cause them all to do somersaults in space.

One is probably a red giant that is still blowing off its atmosphere; the other is most likely a white dwarf stealing gas from its giant companion and lighting up the surrounding nebula.

In the other case, the companion may be an orange dwarf, whose properties lie between those of a red dwarf and the sun.

Or it may be influenced by a tidal tug from the star's red dwarf binary companion (HR 4796B), located at least 54 billion miles from the primary star.

© Estate of John Whatmough — larger image (Artwork from Extrasolar Visions, used with permission from Whatmough) Glowing red through gravitational contraction, the candidate brown dwarf companion to Proxima Centauri is depicted with two moons (one eclipsing the flare star) with distant Alpha Centauri A and B at upper right, as imagined by Whatmough.

This much dimmer companion star is a main sequence, orange - red dwarf (K0 - 1 V).

The closest star to the sun, proxima centauri, a companion of alpha centauri, is also a red dwarf.

Discovered to be a faint companion of Stars Aab by Ragnar Furuhjelm, Capella C is a red dwarf star of spectral and luminosity type M1 V.

In our new study Kevin has used old and new observations of the system to constrain the orbit of the companion (a red dwarf star labeled B) over the past fourteen years.

The companion star is a very cool, main sequence red dwarf (M5.5 or M7 Ve).

Abstract: In a search for common proper motion companions using the VISTA Hemisphere Survey and 2MASS catalogs we have identified a very red (J - Ks = 2.47 mag) late - L dwarf companion of a previously unrecognized M dwarf VHS J125601.92 - 125723.9, located at a projected angular separation of 8.06» + / -0.03».

From low - resolution optical and near - IR spectroscopy we classified the primary and the companion as an M7.5 +... ▽ More In a search for common proper motion companions using the VISTA Hemisphere Survey and 2MASS catalogs we have identified a very red (J - Ks = 2.47 mag) late - L dwarf companion of a previously unrecognized M dwarf VHS J125601.92 - 125723.9, located at a projected angular separation of 8.06» + / -0.03».

Epsilon Indi is an orange - red dwarf star, with two methane brown dwarf companions in orbit around each other (more).

The star may have an unseen, close spectroscopic companion, which could be a very dim red dwarf star or a white dwarf stellar remnant (more below).

Further analysis by Akeson et al (2009) on a puzzling reduction in mid-range infrared excess «visibility» failed to rule out the possibility of an unseen stellar companion (as bright as M0 red dwarf) in a wide orbit with a period measured in years or a very close orbit companion with a period measured in as short as a few days.

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.

Previous observations have provided tantalizing, but weak hints of a small companion orbiting this red dwarf star, but this new campaign will make a more sensitive search for the telltale wobbles in the dwarf star's orbital motion that might reveal the presence of an Earth - like orbiting planet.