All names: TYC 5709-698-1, WD 1917-07, WDS J19206-0740A, LDS 678A, GJ 754.1 A, GJ 9653, PLX 4519.1, UBV M 43022, HIC 95071, 2MASS J19203492-0739597, CSI-07-19179 1, IDS 19152-0751 A, USNO 69, Gaia DR2 4201781696994073472, VVO 420, WD 1917-074, HIP 95071, Zkh 291, Gaia DR1 4201781727042370176, CCDM J19206-0740A, EGGR 131, LP 692-16, LAWD 74, L 923-21, NSV 11920, UBV 16351, LTT 7658, ** LDS 678A, WD 1917-077, NLTT 47693, UBV M 43021
| Parameter | Unit | Gaia DR2 | Tremblay et al. 2017 | Simbad |
|---|---|---|---|---|
| Right ascension | 19 20 34.86 (0.06) | 19 20 34.92 (0.06) | ||
| Declination | -07 40 02.57 (0.05) | -07 40 00.07 (0.05) | ||
| Spectral type | DBQA | DBQA5 | ||
| Effective temperature | [K] | 10400.0 (360) | ||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 95.25 (0.07) | 95.10 (0.6) | 95.25 (0.07) |
| Distance | [pc] | 10.50 (0.008) | 10.52 (0.06) | 10.50 (0.008) |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -61.279 (0.1) | -61.279 (0.1) | |
| Proper motion (declination) | [mas/yr] | -161.774 (0.1) | -161.774 (0.1) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.35 | |||
| V magnitude | 12.29 (0.01) | 12.29 | ||
| R magnitude | 12.23 | |||
| I magnitude | 12.16 | |||
| J magnitude | 12.35 (0.03) | |||
| H magnitude | 12.36 (0.03) | |||
| K magnitude | 12.42 (0.03) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.27 | 12.25 (0.001) | 12.27 (0.0004) | |
| BP magnitude | 12.23 | |||
| RP magnitude | 12.22 | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.