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According to, [3] the greatest change in UV irradiance occurs in a planet orbiting an F0 star with >1.5 M ☉︎, as opposed to an F8 or F9 star with ≤1.2 M ☉︎. The most dangerous phase in a star's life for potentially habitable planets orbiting it would be the earliest, between the star's formation and its 500 Mya -milestone, especially ...
Disc of debris around an F-type star, HD 181327. [1] An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. These stars have from 1.0 to 1.4 times the mass of the Sun and surface temperatures between 6,000 and 7,600 K. [2] Tables VII and VIII.
TOI-1338 is a single-lined spectroscopic binary system, consisting of an F8 star and a red dwarf of spectral type M. The system has an age of 4.4 billion years. The two stars with masses of 1.13 and 0.313 M ☉ revolve around each other every 14.6 days.
Target Selection for SETI: 1. A Catalog of Nearby Habitable Stellar Systems, Turnbull, Tarter, submitted 31 Oct 2002 (last accessed 19 Jan 2010); Target selection for SETI. II. Tycho-2 dwarfs, old open clusters, and the nearest 100 stars Archived 2008-08-21 at the Wayback Machine, by Turnbull and Tarter, (last accessed 19 Jan 2010)
A simple chart for classifying the main star types using Harvard classification In astronomy , stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors ...
The Alpha Centauri star system is the closest star system to the Sun. List of nearest M-type stars. This is a list of M-type stars ... F8.5:V [76] 1.02 ...
In astrobiology and planetary astrophysics, the galactic habitable zone is the region of a galaxy in which life is most likely to develop. The concept of a galactic habitable zone analyzes various factors, such as metallicity (the presence of elements heavier than hydrogen and helium) and the rate and density of major catastrophes such as supernovae, and uses these to calculate which regions ...
The stars with the most confirmed planets are the Sun (the Solar System's star) and Kepler-90, with 8 confirmed planets each, followed by TRAPPIST-1 with 7 planets. The 1,033 multiplanetary systems are listed below according to the star's distance from Earth. Proxima Centauri, the closest star to the Solar System, has three planets (b, c and d).