planets and satellites: individual: alpha CentauriWe investigate the possibility of constraining the sin i degeneracy of alpha Cen B b -- with orbital period P=3.24 d; a = 0.042 AU; msini = 1.1 M_earth -- to estimate the true mass of the newly reported terrestrial exoplanet in the ...
of the smallest minimum mass planet detected so far around a solar-type star. This planet, orbiting our neighbour star Alpha Centauri B, is also the closest one to the solar system found to date. This result represents a major step towards the detection of Earth twins in the immediate ...
Proxima Centauri (Alpha Centauri C) is a red main sequence star in the constellation of Centaurus. It is too faint to be seen in the southern hemisphere night sky without a telescope. Proxima Centauri distance from Earth is 4.23 light years away.
IUE far-UV and Einstein Observatory soft X-ray observations for the red giant Arcturus and the nearby yellow dwarf Alpha-Centauri A, which are archetypes of solar mass stars in different stages of evolution, are compared. Evidence is found for neither coronal soft X-ray emission from the red...
Alpha Centauri: A Triple Star System about 4 Light Years from Earth [https://www.nasa.gov/mission_pages/chandra/images/alpha-centauri-a-triple-star-system-about-4-light-years-from-earth.html] Sun fact sheet, NASA, [Accessed 04/13/23], [https://nssdc.gsfc.nasa.gov/planetary/factsheet/...
Planet-hunting teams have focused on the three stars belonging to Alpha Centauri B due to their close proximity to Earth. Observers used the HARPS spectograph from the European Southern Observatory telescope to ...
A Campaign for the Detection of Earth-Mass Planets in the Habitable Zone of Alpha Centauridoi:10.1017/S1743921313012532Rob WittenmyerMichael EndlChristoph BergmannDuncan J Wright