Observation data Epoch J2000.0 Equinox J2000.0( ICRS) | |
---|---|
Constellation | Telescopium |
Right ascension | 20h 09m 40.19s [2] |
Declination | −52° 25′ 15.86″ [2] |
Apparent magnitude (V) | 15.03 [3] |
Characteristics | |
Evolutionary stage | white dwarf |
Spectral type | DB2 [4] |
U−B color index | −0.71 [5] |
B−V color index | −0.04 [5] |
Variable type | V777 Herculis [6] |
Astrometry | |
Proper motion (μ) |
RA: +12.024
mas/
yr
[2] Dec.: -76.714 mas/ yr [2] |
Parallax (π) | 8.4145 ± 0.0650 mas [2] |
Distance | 388 ± 3
ly (118.8 ± 0.9 pc) |
Details | |
Mass | 0.569 ± 0.022 [7] M☉ |
Surface gravity (log g) | 7.91 ± 0.05 [8] cgs |
Temperature | 24,843 ± 1,363 [7] K |
Other designations | |
QU Telescopii,
Gaia DR2 6665910709364014336 | |
Database references | |
SIMBAD | data |
EC 20058-5234 (QU Telescopii), is a star in the constellation Telescopium. With an apparent magnitude of 15.03, [3] it's impossible to detect with the naked eye and requires a powerful telescope to be seen; this degenerate object is located 388 light years from the Solar System based on parallax. [2]
QU Telescopii has a classification of DB2, which states it's a white dwarf with He I lines present in its atmosphere. At the moment, it has 56.9% the mass of the Sun, [7] but a high surface gravity suggests QU Telescopii has a low radius. [8] It has an effective temperature of 24,843 K, [7] which gives it a blue hue as opposed to a white hue. QU Telescopii belongs to a class of stars known as V777 Herculis variables or DBV stars. [6] First noticed in the Edinburgh-Cape Blue Object Survey published in 1992, it was found to be variable in 1995. [1]
Observation data Epoch J2000.0 Equinox J2000.0( ICRS) | |
---|---|
Constellation | Telescopium |
Right ascension | 20h 09m 40.19s [2] |
Declination | −52° 25′ 15.86″ [2] |
Apparent magnitude (V) | 15.03 [3] |
Characteristics | |
Evolutionary stage | white dwarf |
Spectral type | DB2 [4] |
U−B color index | −0.71 [5] |
B−V color index | −0.04 [5] |
Variable type | V777 Herculis [6] |
Astrometry | |
Proper motion (μ) |
RA: +12.024
mas/
yr
[2] Dec.: -76.714 mas/ yr [2] |
Parallax (π) | 8.4145 ± 0.0650 mas [2] |
Distance | 388 ± 3
ly (118.8 ± 0.9 pc) |
Details | |
Mass | 0.569 ± 0.022 [7] M☉ |
Surface gravity (log g) | 7.91 ± 0.05 [8] cgs |
Temperature | 24,843 ± 1,363 [7] K |
Other designations | |
QU Telescopii,
Gaia DR2 6665910709364014336 | |
Database references | |
SIMBAD | data |
EC 20058-5234 (QU Telescopii), is a star in the constellation Telescopium. With an apparent magnitude of 15.03, [3] it's impossible to detect with the naked eye and requires a powerful telescope to be seen; this degenerate object is located 388 light years from the Solar System based on parallax. [2]
QU Telescopii has a classification of DB2, which states it's a white dwarf with He I lines present in its atmosphere. At the moment, it has 56.9% the mass of the Sun, [7] but a high surface gravity suggests QU Telescopii has a low radius. [8] It has an effective temperature of 24,843 K, [7] which gives it a blue hue as opposed to a white hue. QU Telescopii belongs to a class of stars known as V777 Herculis variables or DBV stars. [6] First noticed in the Edinburgh-Cape Blue Object Survey published in 1992, it was found to be variable in 1995. [1]