Table of Contents
What is a Gliese?
Gliese 1214 b is a type of planet we call a Super-Earth — a bit bigger than Earth, a bit smaller than Neptune. It’s not dense enough to be rocky so it’s probably like a warm mini-Neptune.
How many Gliese stars are there?
Gliese published the Third Catalogue of Nearby Stars (CNS3) in 1991, again in collaboration with Hartmut Jahreiß; the list now containing information on more than 3,800 stars. Although this catalogue is designated as preliminary it is still the one in current use. This catalogue lists a total of 3,803 stars.
What is a M3V star?
The star is a red dwarf with spectral type M3V, located 20.4 light-years away from Earth. It is located about two degrees north of Beta Librae, the brightest star in the Libra constellation. Its mass is estimated to be approximately a third that of the Sun, and it is the 89th closest known star system to the Sun.
How are stars Catalogued?
A star catalogue (Commonwealth English) or star catalog (American English) is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. The largest is being compiled from the spacecraft Gaia and thus far has over a billion stars.
What is Gliese named after?
Wilhelm Gliese
Honors. The asteroid 1823 Gliese, discovered by astronomer Karl Reinmuth in 1951, was named after Wilhelm Gliese.
Why are stars named HD?
The HD catalogue is named after Henry Draper, an amateur astronomer, and covers the entire sky almost completely down to an apparent photographic magnitude of about 9; the extensions added fainter stars in certain areas of the sky.
How many galaxies have been Catalogued?
About 44 million stars and galaxies, among them hundreds of thousands that are unexpectedly fading or brightening, have been catalogued by astronomers from Australia and UK.
How many stars are named?
Background. Of the roughly 10,000 stars visible to the naked eye, only a few hundred have been given proper names in the history of astronomy. Traditional astronomy tends to group stars into constellations or asterisms and give proper names to those, not to individual stars.
Who discovered Gliese 581?
Steven S. Vogt
R. Paul Butler
Gliese 581g/Discoverers