All names: WG 34, USNO-B1.0 0320-00978304, L 204-118, 2MASS J17302310-5755255, GEN# +6.00224866, GSC2 S211313123913, WDJ173023.09-575525.71, uvby98 600224866, WD 1726-57, GCRV 27471, BPM 24866, Gaia DR3 5913195150770419840, WD 1726-578, Gaia DR2 5913195150770419840, Gaia EDR3 5913195150770419840, L204-118, TIC 360460993
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 30 23.17 (0.02) | 17 30 23.17 (0.04) | 17 30 23.17 | 17 30 23.09 (0.02) | 17 30 23.17 | 17 30 25.32 | |||
| Declination | -57 55 24.25 (0.02) | -57 55 24.29 (0.04) | -57 55 24.25 | -57 55 25.71 (0.02) | -57 55 24.29 | -57 55 18.48 | |||
| Spectral type | DBA | DB | DB | DB4 | |||||
| Effective temperature | [K] | 14320.0 (341) | 14179.0 (98) | ||||||
| log(g) | [cgs] | 8.20 (0.08) | 8.04 (0.008) | ||||||
| Mass | [M☉] | 0.71 (0.05) | 0.611 (0.007) | ||||||
| log(Luminosity) | [L☉] | -2.33 | |||||||
| Cooling age | [Gyr] | 0.3236 | |||||||
| log(H/He) | -5.46 (0.2) | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | 17.10 (0.03) | 17.01 (0.05) | 17.10 | 17.10 (0.03) | 17.01 (0.05) | |||
| Distance | [pc] | 58.47 (0.1) | 58.78 (0.2) | 51.00 | 58.47 | 58.47 (0.1) | 58.78 (0.2) | ||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 40.50791584 (0.02) | 40.31334922 (0.06) | 40.508 (0.02) | 40.31334922 | ||||
| Proper motion (declination) | [mas/yr] | 91.75501387 (0.02) | 91.55840442 (0.07) | 91.755 (0.03) | 91.55840442 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.23 | ||||||||
| V magnitude | 15.27 | 15.27 | |||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.49 (0.07) | ||||||||
| H magnitude | 15.39 (0.1) | ||||||||
| K magnitude | 15.40 (0.2) | ||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.28 (0.001) | 15.31 | 15.28 | 15.28 (0.003) | 15.31 | ||||
| BP magnitude | 15.24 (0.001) | 15.20 | 15.20 | ||||||
| RP magnitude | 15.35 (0.001) | 15.35 | 15.35 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.006 | ||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.