Gliese 752

Gliese 752

Diagram showing the relative sizes and internal dynamic processes of the two Gliese 752 stars
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Gliese 752 A
Right ascension 19h 16m 55.25657s[1]
Declination +05° 10′ 08.0406″[1]
Apparent magnitude (V) ~9.12[2]
Gliese 752 B
Right ascension 19h 16m 57.61096s[3]
Declination +05° 09′ 01.6009″[3]
Apparent magnitude (V) ~17.30[4]
Characteristics
Gliese 752 A
Spectral type M2.5V[2]
Apparent magnitude (B) ~10.63[5]
Apparent magnitude (V) ~9.13[5]
Apparent magnitude (R) ~8.3[5]
Apparent magnitude (J) ~5.58[5]
Apparent magnitude (H) ~4.93[5]
Apparent magnitude (K) ~4.67[5]
Variable type BY[6]
Gliese 752 B
Spectral type M8V[4]
Apparent magnitude (B) ~19.42[4]
Apparent magnitude (V) ~17.30[4]
Apparent magnitude (R) ~15.6[4]
Apparent magnitude (J) 9.908 ± 0.025[4]
Apparent magnitude (H) 9.226 ± 0.026[4]
Apparent magnitude (K) 8.765 ± 0.022[4]
Variable type UV[7]
Astrometry
A
Radial velocity (Rv)35.33±0.13[1] km/s
Proper motion (μ) RA: −579.081 mas/yr[1]
Dec.: −1,332.868 mas/yr[1]
Parallax (π)169.0615 ± 0.0239 mas[1]
Distance19.292 ± 0.003 ly
(5.9150 ± 0.0008 pc)
Absolute magnitude (MV)10.26±0.005[2]
B
Proper motion (μ) RA: −598.761 mas/yr[3]
Dec.: −1,366.063 mas/yr[3]
Parallax (π)168.9537 ± 0.0668 mas[3]
Distance19.304 ± 0.008 ly
(5.919 ± 0.002 pc)
Absolute magnitude (MV)18.7[8]
Details
Gliese 752 A
Mass0.484±0.019[2] M☉
Radius0.481±0.014[2] R☉
Luminosity (bolometric)0.0326 ± 0.0004[9] L☉
Surface gravity (log g)4.90±0.07[2] cgs
Temperature3,534±51[2] K
Metallicity−0.04±0.16[2]
Rotation50.60±0.41 d[2]
Rotational velocity (v sin i)<2[2] km/s
Gliese 752 B
Mass0.0881+0.0026
−0.0024[10] M☉
Radius0.1183+0.0059
−0.0057[10] R☉
Luminosity (bolometric)0.000499±0.000004[10] L☉
Temperature2,508+63
−60[10] K
Age~1[11] Gyr
Other designations
BD+04°4048, GJ 752, CCDM J19169+0510, WDS J19169+0510
Gliese 752 A: V1428 Aql, HD 180617, HIP 94761, Ross 652, Wolf 1055, TYC 472-1252-1, GSC 00472-01252, 2MASS J19165526+0510086[5]
Gliese 752 B: VB 10, Van Biesbroeck's Star, V1298 Aql, 2MASS J19165762+0509021[4]
Database references
SIMBADA
VB 10 (B)
Exoplanet Archivedata
Gliese 752 is located in the constellation Aquila
Gliese 752 is located in the constellation Aquila
Gliese 752
Location of Gliese 752 in the constellation Aquila

Gliese 752 is a binary star system in the Aquila constellation. This system is relatively nearby, at a distance of 19.3 light-years (5.9 parsecs).

The Gliese 752 system consists of two M-type stars. The primary star is the magnitude 9 Gliese (GJ) 752 A. The secondary star is the dim magnitude 17 Gliese (GJ) 752 B, more commonly referred to as VB 10. This stellar pair form a binary star system separated by about 74 arc seconds (~434 AU).[8] This system is also known for its high proper motion of about 1 arc second a year. Component A has one known exoplanet.

The name and number are from the Catalogue of Nearby Stars, published by German astronomer Wilhelm Gliese in 1969.[12]

  1. ^ a b c d e Cite error: The named reference GaiaDR3a was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i j Cite error: The named reference Burt2020 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference GaiaDR3b was invoked but never defined (see the help page).
  4. ^ a b c d e f g h i Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference SIMBAD-2 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference flare-2 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference flare-1 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Biesbroeck was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Kaminski2018 was invoked but never defined (see the help page).
  10. ^ a b c d Cite error: The named reference Pineda2021 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference disc was invoked but never defined (see the help page).
  12. ^ Gliese, W. (1969). "Catalogue of Nearby Stars. Edition 1969". Veröffentlichungen des Astronomischen Rechen-Instituts Heidelberg. 22. 22. Karlsruhe: G. Braun: 117. Bibcode:1969VeARI..22....1G. Archived from the original on 2012-02-18. Retrieved 2011-05-11.