Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Capricornus |
Right ascension | 20h 52m 33.01679s [1] |
Declination | −16° 58′ 29.0249″ [1] |
Apparent magnitude (V) | 11.458 [2] |
Characteristics | |
Spectral type | M4 [3] |
Astrometry | |
Radial velocity (Rv) | 8.5 [4] km/s |
Proper motion (μ) | RA: -309.115 mas/yr [5] Dec.: 37.051 mas/yr [5] |
Parallax (π) | 177.9312 ± 0.0365 mas [5] |
Distance | 18.330 ± 0.004 ly (5.620 ± 0.001 pc) |
Details [6] | |
Mass | 0.224±0.022 M☉ |
Radius | 0.266±0.012 R☉ |
Surface gravity (log g) | 4.584 [7] cgs |
Temperature | 3030±27 [8] K |
Metallicity [Fe/H] | -0.11±0.07 [8] dex |
Rotation | 67.6±0.1 d. [9] |
Rotational velocity (v sin i) | 2.70±0.66 [7] km/s |
Age | 2.57+8.15 −1.95 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
Location of LP 816-60 in the constellation Capricornus |
LP 816-60 is a single [3] red dwarf star of spectral type M4, located in constellation Capricornus at 18.6 light-years from Earth. [1]
The discovery name of this star is LP 816-60, [12] which indicates that its discovery was published between 1963 and 1981 in University of Minnesota, Minneapolis. [13]
LP 816-60 is known at least from 1979, when it was included to Luyten's catalogue NLTT. [10]
No massive planets were detected around LP 816-60 as in 2013. [3] The star has a magnetic starspot cycle of 10.6±1.7 years, [9] and weak magnetic fields in chromosphere averaging 4.4 G. [14]
Groombridge 34 is a binary star system in the northern constellation of Andromeda. It was listed as entry number 34 in A Catalogue of Circumpolar Stars, published posthumously in 1838 by British astronomer Stephen Groombridge. Based upon parallax measurements taken by the Gaia spacecraft, the system is located about 11.6 light-years from the Sun. This positions the pair among the nearest stars to the Solar System.
Gliese 1 is a red dwarf in the constellation Sculptor, which is found in the southern celestial hemisphere. It is one of the closest stars to the Sun, at a distance of 14.2 light years. Because of its proximity to the Earth it is a frequent object of study and much is known about its physical properties and composition. However, with an apparent magnitude of about 8.6 it is too faint to be seen with the naked eye.
Pi Cassiopeiae, Latinized from π Cassiopeiae, is a close binary star system in the constellation Cassiopeia. It is visible to the naked eye with an apparent visual magnitude of +4.949. Based upon an annual parallax shift of 18.63 mas as seen from Earth, this system is located about 175 light years from the Sun.
Tau Centauri, Latinized from τ Centauri, is a solitary star in the southern constellation of Centaurus. It is visible to the naked eye with an apparent visual magnitude of +3.86. The distance to this star, based upon an annual parallax shift of 24.85 mas, is 131 light years. There is a 98% chance that it is a co-moving companion of Gamma Centauri; the two stars have an estimated separation of 1.7 ly (0.53 pc).
Theta Persei is a star system 37 light years away from Earth, in the constellation Perseus. It is one of the closest naked-eye stars.
Gliese 682 or GJ 682 is a red dwarf. It is listed as the 53rd-nearest known star system to the Sun, being 16.3 light years away from the Earth. Even though it is close by, it is dim with a magnitude of 10.95 and thus requires a telescope to be seen. It is located in the constellation of Scorpius, near the bright star Theta Scorpii. The star is in a crowded region of sky near the Galactic Center, and so appears to be near a number of deep-sky objects from the Solar System's perspective. The star is only 0.5 degrees from the much more distant globular cluster NGC 6388.
HD 224635 and HD 224636 is a pair of stars comprising a binary star system in the constellation Andromeda. They are located approximately 94 light years away and they orbit each other every 717 years.
Tau1 Hydrae is a triple star system in the equatorial constellation of Hydra. Based upon the annual parallax shift of the two visible components as seen from Earth, they are located about 18 parsecs (59 ly) from the Sun. The system has a combined apparent visual magnitude of +4.59, which is bright enough to be visible to the naked eye at night.
Gliese 3323 is a nearby single star located in the equatorial constellation Eridanus, about 0.4° to the northwest of the naked eye star Psi Eridani. It is invisible to the naked eye with an apparent visual magnitude 12.20. Parallax measurements give a distance estimate of 17.5 light years from the Sun. It is drifting further away with a radial velocity of +42.3 km/s. Roughly 104,000 years ago, the star is believed to have come to within 7.34 ± 0.16 light-years of the Solar System.
Gliese 205 is a nearby red dwarf star of spectral type M1.5, located in constellation Orion at 18.6 light-years from Earth.
Ross 47 is a variable star of spectral type M4 located in the constellation Orion, 19 light-years from Earth.
Gliese 588 is a nearby red dwarf star of spectral type M2.5, located in the constellation Lupus at 19.34 light-years from Earth. It emits a very stable light flux, with no detectable pulsations.
Gliese 908 is a red dwarf star, located in constellation Pisces at 19.3 light-years from Earth. It is a BY Draconis variable star with a variable star designation of BR Piscium. Its apparent magnitude varies between magnitude 8.93 and magnitude 9.03 as a result of starspots and varying chromospheric activity.
Gliese 555 is a red dwarf star of spectral type M4.0V, located in the constellation Libra at a distance of 20.4 light-years from Earth.
GJ 625 is a small red dwarf star with an exoplanetary companion in the northern constellation of Draco. The system is located at a distance of 21.1 light-years from the Sun based on parallax, but is drifting closer with a radial velocity of −13 km/s. It is too faint to be visible to the naked eye, having an apparent visual magnitude of 10.13 and an absolute magnitude of 11.06.
Gliese 880 is a small red dwarf star in the northern constellation of Pegasus that may host an exoplanetary companion. No stellar companions to Gliese 880 have been discovered as of 2020.
Ross 695, also known as Gliese 465, is a red dwarf star in the constellation Corvus. At apparent magnitude 11.27, it is much too faint to be seen with the unaided eye. A small star, it has around 23% the mass and radius of the Sun, but only 0.7% its luminosity. Investigation of its radial velocity failed to find any evidence of a planetary companion.
HD 126053 is the Henry Draper Catalogue designation for a star in the equatorial constellation of Virgo. It has an apparent magnitude of 6.25, which means it is faintly visible to the naked eye. According to the Bortle scale, it requires dark suburban or rural skies to view. Parallax measurements made by the Hipparcos spacecraft provide an estimated distance of 57 light years to this star. It is drifting closer with a heliocentric radial velocity of −19.2 km/s.
Gliese 514, also known as BD+11 2576 or HIP 65859, is a M-type main-sequence star, in the constellation Virgo 24.85 light-years away from the Sun. The proximity of Gliese 514 to the Sun was known exactly since 1988.
15 Delphini is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 5.99, allowing it to be faintly seen with the naked eye. The star is relatively close at a distance of 99 light years but is receding with a heliocentric radial velocity of 4.1 km/s.