DT Vir, BD+13° 2618, GJ 494, HIP 63510, LHS 2665, LTT 13752, Ross 458, Wolf 462[10]
Database references
SIMBAD
data
ARICNS
data
DT Virginis, also known as Ross 458, is a binary star system in the constellation of Virgo. It has an apparent visual magnitude of 9.79[2] and is located at a distance of 37.6 light-years from the Sun. Both of the stars are low-mass red dwarfs with at least one of them being a flare star. This binary system has a circumbinary sub-stellar companion.
This star was mentioned as a suspected variable by M. Petit in 1957.[13] In 1960, O. J. Eggen classified it as a member of the Hyades moving group based on the system's space motion;[14] it is now considered a likely member of the Carina Near Moving Group.[5] Two flares were reported from this star in 1969 by N. I. Shakhovskaya, confirming it as a flare star.[11] It was identified as an astrometric binary in 1994 by W. D. Heintz, who found a period of 14.5 years.[4] The pair were resolved using adaptive optics in 1999.[4] Early mass estimates placed the companion near the substellar limit, and it was initially proposed as a brown dwarf[15] but is now considered late-type red dwarf.[3]
The primary member, component A, is an M-type main-sequence star with a stellar classification of M0.5.[3] It is young, magnetically very active star with a high rate of rotation[15] and strong Hα emission.[3] The star experiences star spots that cover 10–15% of the surface[2] It is smaller and less massive than the Sun. The star is radiating just 4.4%[6] of the luminosity of the Sun from its photosphere at an effective temperature of 3,484 K.[5]
^ abcdeCite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
^ abcdeCite error: The named reference Alekseev_Bondar was invoked but never defined (see the help page).
^ abcdeCite error: The named reference Manjavacas_et_al_2019 was invoked but never defined (see the help page).
^ abcdeCite error: The named reference Laugier_et_al_2019 was invoked but never defined (see the help page).
^ abcdCite error: The named reference Houdebine2010 was invoked but never defined (see the help page).
^ abcdCite error: The named reference Khata_et_al_2020 was invoked but never defined (see the help page).
^Cite error: The named reference Küker_et_al_2018 was invoked but never defined (see the help page).
^Cite error: The named reference Fouqué_et_al_2018 was invoked but never defined (see the help page).
^Feng, Fabo; Butler, R. Paul; et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series. 262 (21): 21. arXiv:2208.12720. Bibcode:2022ApJS..262...21F. doi:10.3847/1538-4365/ac7e57. S2CID 251864022.
^Cite error: The named reference Simbad was invoked but never defined (see the help page).
^ abCite error: The named reference Shakhovskaya1969 was invoked but never defined (see the help page).
^Cite error: The named reference Kiraga was invoked but never defined (see the help page).
^Cite error: The named reference Petit1957 was invoked but never defined (see the help page).
^Cite error: The named reference Eggen1960 was invoked but never defined (see the help page).
^ abCite error: The named reference Beuzit_et_al_2004 was invoked but never defined (see the help page).
DTVirginis, also known as Ross 458, is a binary star system in the constellation of Virgo. It has an apparent visual magnitude of 9.79 and is located...
mass at 9.0+6 −3 MJ, however also in projected separation of ≈150 AU. DTVirginis c, also known as Ross 458 (AB) c, at a projected separation of ≈1200...
news outlets comparing it to the so-called hypothetical Planet Nine. DTVirginis, a planetary mass object which orbits a binary star, it has the farthest...
properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Virginis)". Astronomy and Astrophysics. 471 (2): 605–615. arXiv:0706.3363. Bibcode:2007A&A...
ν Virginis, Latinized as Nu Virginis, is a single star in the zodiac constellation of Virgo, located at the western tip of the classic constellation and...
Pi Virginis (π Vir, π Virginis) is a binary star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude...
Phi Virginis (φ Virginis, abbreviated Phi Vir, φ Vir) is a binary star in the zodiac constellation of Virgo. It can be seen with the naked eye, having...
Omicron Virginis (ο Vir, ο Virginis) is a star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude...
Xi Virginis (ξ Vir, ξ Virginis) is a solitary star in the zodiac constellation of Virgo. It is bright enough to be seen with the naked eye, having an...
Psi Virginis (ψ Vir, ψ Virginis) is a suspected binary star system in the zodiac constellation of Virgo. It can be seen with the naked eye and has an...
Omega Virginis (ω Vir, ω Virginis) is a solitary star in the zodiac constellation Virgo. It has an apparent visual magnitude of +5.2, which is bright...
Tau Virginis (τ Vir, τ Virginis) is a single star in the zodiac constellation Virgo. With an apparent visual magnitude of 4.28, it is faintly visible...
Theta Virginis (θ Vir, θ Virginis) is a multiple star system in the zodiac constellation of Virgo. Based upon parallax measurements, it is about 320 light...
Upsilon Virginis (υ Vir, υ Virginis) is a single star in the zodiac constellation of Virgo. It has an apparent visual magnitude of 5.25, making it faintly...
Lambda Virginis (λ Virginis, abbreviated Lambda Vir, λ Vir) is a binary star system in the zodiac constellation of Virgo. With an apparent visual magnitude...
Sigma Virginis (σ Vir, σ Virginis) is a star in the zodiac constellation of Virgo. It can be faintly seen with the naked eye with a baseline apparent...
38 Virginis is an F-type main sequence star in the constellation of Virgo. It is around 108 light years distant from the Earth. The name 38 Virginis derives...
Kappa Virginis (κ Virginis, abbreviated Kappa Vir, κ Vir), officially named Kang /ˈkæŋ/, is a solitary star in the zodiac constellation of Virgo. It has...
vessel crewed by 25 men and 25 women aiming to reach the nearby star Beta Virginis. The ship is powered by a Bussard ramjet, which was proposed 10 years before...
Maidbronn Abbey (German: Kloster Maidbronn; Latin: Fons Virginis Sanctae Mariae) was a Cistercian nunnery in Maidbronn in the present municipality of Rimpar...
to the near absence of repetitiveness in the irregular variables. The W Virginis variables are at the interface; the short period ones are regular and the...
vero Anno, quo aeternus Dei Filius humanam naturam in Utero benedictae Virginis Mariae assumpsit (1614) Eclogae Chronicae (1615, published with Dissertatio...
between 1 and 4 days are of the BL Her subclass, 10–20 days belong to the W Virginis subclass, and stars with periods greater than 20 days belong to the RV...