All names: 0145-174, Gaia DR3 5142197118950177280, LHS 147, EGGR 467, PLX 376.01, USNO 688, [SRH2004] 5, LP 768-500, NLTT 6028, Gaia EDR3 5142197118950177280, J0148-1712, SDSS J014809.10-171222.0, WD 0145-174, Gaia DR2 5142197118950177280, WDJ014809.15-171214.41, USNO-B1.0 0727-00028754
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | Leggett et al. 2018 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Bergeron et al. 2005 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 48 09.04 (0.06) | 01 48 09.04 (0.1) | 01 48 09.04 | 01 48 09.16 (0.06) | 01 48 09.04 | 01 48 09.38 | ||||||||||
| Declination | -17 12 32.11 (0.06) | -17 12 31.55 (0.1) | -17 12 32.11 | -17 12 14.41 (0.06) | -17 12 31.55 | -17 11 22.92 | ||||||||||
| Spectral type | DA | DA | DA | DA6.8 | DA | DA | DA6.9 | DC7 | ||||||||
| Effective temperature | [K] | 7186.0 (50) | 7614.0 (72) | 7263.0 (68) | 7403.0 (169) | 7270.0 (127) | 7640.0 (180) | 7720.0 (200) | 7328.0 (73) | |||||||
| log(g) | [cgs] | 7.84 (0.01) | 8.00 (0.02) | 7.86 (0.02) | 7.93 (0.06) | 7.91 (0.1) | 8.07 | 7.50 (0) | 7.89 (0.02) | |||||||
| Mass | [M☉] | 0.503 (0.01) | 0.591 (0.02) | 0.511 (0.02) | 0.552 (0.05) | 0.54 (0.08) | 0.64 | 0.35 | 0.531 (0.02) | |||||||
| log(Luminosity) | [L☉] | -3.01 | ||||||||||||||
| Cooling age | [Gyr] | 1.2600 | 1.1920 (0.1) | 1.3400 | 0.7100 | |||||||||||
| log(H/He) | ||||||||||||||||
| log(C/He) | ||||||||||||||||
| log(Ca/He) | ||||||||||||||||
| log(Ca/H) | ||||||||||||||||
| log(C/H) | ||||||||||||||||
| log(N/H) | ||||||||||||||||
| log(O/H) | ||||||||||||||||
| log(Na/H) | ||||||||||||||||
| log(Mg/H) | ||||||||||||||||
| log(Al/H) | ||||||||||||||||
| log(Si/H) | ||||||||||||||||
| log(P/H) | ||||||||||||||||
| log(S/H) | ||||||||||||||||
| log(Sc/H) | ||||||||||||||||
| log(Ti/H) | ||||||||||||||||
| log(Cr/H) | ||||||||||||||||
| log(Mn/H) | ||||||||||||||||
| log(Fe/H) | ||||||||||||||||
| log(Ni/H) | ||||||||||||||||
| Parallax | [mas] | 13.04 (0.1) | 12.95 (0.1) | 13.12 (0.6) | 12.95 (0.1) | 14.00 (9) | 13.04 | 13.04 (0.1) | 12.95 (0.1) | 15.70 (10) | ||||||
| Distance | [pc] | 76.71 (0.6) | 77.22 (0.9) | 76.22 (3) | 77.19 (0.9) | 72.00 | 71.00 | 71.43 (47) | 76.71 | 76.71 (0.6) | 77.19 (0.9) | 63.69 (41) | ||||
| Composition | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -106.5107496 (0.09) | -105.9668902 (0.3) | -106.511 (0.09) | -105.9668902 | |||||||||||
| Proper motion (declination) | [mas/yr] | -1106.194285 (0.07) | -1105.825359 (0.2) | -1106.194 (0.07) | -1105.825359 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 17.97 | 17.97 | 17.40 | |||||||||||||
| V magnitude | 17.62 | 17.62 | 17.66 | |||||||||||||
| R magnitude | 17.38 | 17.38 | 17.30 | |||||||||||||
| I magnitude | 17.16 | 17.16 | ||||||||||||||
| J magnitude | 17.00 (0.03) | 17.00 (0.05) | 17.00 | |||||||||||||
| H magnitude | 16.94 (0.03) | 16.85 (0.05) | 16.94 | |||||||||||||
| K magnitude | 16.95 (0.03) | 16.86 (0.05) | 16.95 | |||||||||||||
| u magnitude | 18.23 (0.03) | 18.22 (0.02) | 18.22 (0.02) | |||||||||||||
| g magnitude | 17.72 (0.005) | 17.72 (0.005) | ||||||||||||||
| r magnitude | 17.57 (0.006) | 17.57 (0.006) | ||||||||||||||
| i magnitude | 17.54 (0.007) | 17.54 (0.007) | ||||||||||||||
| z magnitude | 17.57 (0.02) | 17.57 (0.02) | ||||||||||||||
| G magnitude | 17.54 (0.009) | 17.56 | 17.54 | 17.54 (0.003) | 17.56 | |||||||||||
| BP magnitude | 17.72 (0.009) | 17.71 | 17.71 | |||||||||||||
| RP magnitude | 17.24 (0.008) | 17.24 | 17.24 | |||||||||||||
| Pan g magnitude | 17.75 (0.01) | 17.71 (0.009) | ||||||||||||||
| Pan r magnitude | 17.57 (0.006) | 17.57 (0.01) | ||||||||||||||
| Pan i magnitude | 17.55 (0.001) | 17.56 (0.006) | ||||||||||||||
| Pan z magnitude | 17.60 (0.009) | 17.62 (0.01) | ||||||||||||||
| Pan y magnitude | 17.64 (0.03) | 17.65 (0.03) | ||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||
* 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.