All names: GEN# +9.80035011, SDSS J014519.53+231753.4, EGGR 12, USNO-B1.0 1132-00029407, Gaia DR3 290678477446232960, LTT 10614, SDSS J014519.69+231752.7, SDSS J014519.69+231752.69, CCDM J01453+2318B, SDSS J014519.69+231752.6, SDSS J014519.62+231753.0, UBV 1776, TIC 456907324, Gaia EDR3 290678477446232960, NLTT 5829, G 34-49, J0145+2317, CSI+23-01425 1, G 35-11, Gaia DR2 290678477446232960, G 39-49, ** GIC 25B, 2MASS J01451946+2317538, LSPM J0145+2317E, G 72-33, IDS 01397+2247 B, WDJ014519.42+231753.94, G 94-7, WDS J01452+2317B, WD 0142+230, SDSS J014519.62+231753.1, WD 0142+23, GALEX J014519.5+231752, UCAC4 567-003393
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Coutu et al. 2019 | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 45 19.78 (0.08) | 01 45 19.62 | 01 45 19.62 | 01 45 19.50 | 01 45 19.77 (0.1) | 01 45 19.78 | 01 45 19.42 (0.08) | 01 45 19.77 | 01 45 18.29 | |||||||
| Declination | 23 17 52.22 (0.06) | 23 17 53.08 | 23 17 53.08 | 23 17 53.71 | 23 17 52.28 (0.09) | 23 17 52.22 | 23 17 53.95 (0.06) | 23 17 52.28 | 23 17 54.96 | |||||||
| Spectral type | DQ | DQ | DQ | DQ | DQ | DC4 | DC4 | DQ | ||||||||
| Effective temperature | [K] | 7468.0 (38) | 7627.0 (29) | 7731.0 (188) | 7500.0 (12) | 7608.0 (88) | ||||||||||
| log(g) | [cgs] | 7.92 (0.01) | 7.99 (0.01) | 8.02 | 8.00 (0) | 7.98 (0.02) | ||||||||||
| Mass | [M☉] | 0.53 (0.009) | 0.568 (0.009) | 0.5849 | 0.564 (0.02) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 1.2900 | 1.2400 | |||||||||||||
| log(H/He) | ||||||||||||||||
| log(C/He) | -5.74 | -5.65 | -5.546 (0.02) | -5.778 (0.02) | ||||||||||||
| 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] | 16.34 (0.09) | 16.41 (0.1) | 16.41 | 16.41 (0.1) | 16.34 | 16.34 (0.09) | 16.41 (0.1) | ||||||||
| Distance | [pc] | 61.19 (0.3) | 60.94 (0.4) | 60.95 (0.4) | 60.95 (0.4) | 61.19 | 61.19 (0.3) | 60.95 (0.4) | ||||||||
| Composition | He | He | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 308.0615388 (0.1) | 308.169741 (0.2) | 308.062 (0.1) | 308.169741 | |||||||||||
| Proper motion (declination) | [mas/yr] | -107.6950604 (0.08) | -107.589919 (0.2) | -107.695 (0.08) | -107.589919 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | yes | |||||||||||||||
| B magnitude | 17.30 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 16.60 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.85 (0.02) | 16.85 (0.1) | ||||||||||||||
| H magnitude | ||||||||||||||||
| K magnitude | ||||||||||||||||
| u magnitude | 17.49 (0.01) | 17.49 (0.01) | 17.50 (0.009) | 17.46 (0.03) | 17.49 (0.01) | 17.49 (0.01) | ||||||||||
| g magnitude | 17.23 (0.004) | 17.21 (0.004) | 17.25 (0.02) | 17.23 (0.004) | 17.23 (0.004) | |||||||||||
| r magnitude | 17.17 (0.005) | 17.16 (0.005) | 17.20 (0.01) | 17.17 (0.005) | 17.17 (0.005) | |||||||||||
| i magnitude | 17.20 (0.006) | 17.20 (0.006) | 17.20 (0.02) | 17.20 (0.006) | 17.20 (0.006) | |||||||||||
| z magnitude | 17.31 (0.01) | 17.31 (0.01) | 17.34 (0.02) | 17.31 (0.01) | 17.31 (0.01) | |||||||||||
| G magnitude | 17.11 (0.008) | 17.14 | 17.11 | 17.11 (0.003) | 17.14 | |||||||||||
| BP magnitude | 17.24 (0.008) | 17.24 | 17.24 | |||||||||||||
| RP magnitude | 16.92 (0.01) | 16.90 | 16.90 | |||||||||||||
| Pan g magnitude | 17.21 (0.005) | 17.24 (0.003) | ||||||||||||||
| Pan r magnitude | 17.16 (0.006) | 17.17 (0.006) | ||||||||||||||
| Pan i magnitude | 17.23 (0.005) | 17.23 (0.003) | ||||||||||||||
| Pan z magnitude | 17.33 (0.004) | 17.33 (0.006) | ||||||||||||||
| Pan y magnitude | 17.36 (0.01) | 17.40 (0.02) | ||||||||||||||
| E(B-V) | 0.003 | |||||||||||||||
* 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.