All names: PSO J021.0928+40.3990, WDJ012421.57+402358.09, 2MASS J01242148+4023583, SDSS J012421.93+402357.3, G 133-8, TIC 186529371, Gaia EDR3 372111985092019840, SDSS J012421.92+402357.2, EGGR 517, J0124+4023, Gaia DR3 372111985092019840, USNO 402, PLX 284.01, USNO-B1.0 1303-00023497, NLTT 4654, Gaia DR2 372111985092019840, G133-8, 01243+4023, PM J01243+4023, GEN# +9.80133008, LHS 1244, WD 0121+401, LSPM J0124+4023
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Stilism | Limoges et al. 2015 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 24 22.54 (0.05) | 01 24 22.51 (0.07) | 01 24 22.51 (0.07) | 01 24 22.54 | 01 24 21.57 (0.05) | 01 24 22.51 | 01 24 18.77 | ||||||||||
| Declination | 40 23 56.04 (0.05) | 40 23 56.11 (0.07) | 40 23 56.11 (0.07) | 40 23 56.04 | 40 23 58.10 (0.05) | 40 23 56.11 | 40 23 55.32 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DC: | DA | DA | ||||||
| Effective temperature | [K] | 5212.0 (16) | 5256.0 (42) | 5237.0 (16) | 5227.0 (17) | 5230.4 (32) | 5255.0 (25) | 5300.0 (112) | 5340.0 (120) | 5323.0 (29) | |||||||
| log(g) | [cgs] | 8.07 (0.007) | 8.09 (0.03) | 8.09 (0.007) | 8.09 (0.007) | 8.08 (0.02) | 8.10 (0.02) | 7.91 (0.3) | 7.90 (0.3) | 8.13 (0.01) | |||||||
| Mass | [M☉] | 0.623 (0.007) | 0.635 (0.02) | 0.638 (0.007) | 0.635 (0.006) | 0.641 (0.01) | 0.53 (0.2) | 0.52 (0.2) | 0.663 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.90 | -3.88 (0.1) | ||||||||||||||
| Cooling age | [Gyr] | 5.5900 | 5.4980 (0.2) | 2.9300 (2) | |||||||||||||
| 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] | 36.97 (0.07) | 36.97 (0.07) | 36.97 (0.08) | 36.97 (0.08) | 36.97 (0.08) | 36.97 (0.08) | 32.10 (6) | 32.10 (6) | 36.97 | 36.97 (0.07) | 36.97 (0.08) | 32.10 (6) | ||||
| Distance | [pc] | 27.05 (0.05) | 27.05 (0.05) | 27.05 (0.06) | 27.05 (0.06) | 27.05 (0.06) | 27.05 (0.06) | 31.20 (6) | 31.15 (5) | 27.05 | 27.05 (0.05) | 27.05 (0.06) | 31.15 (6) | ||||
| Composition | H | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 691.7541175 (0.07) | 691.9341551 (0.1) | 691.754 (0.07) | 691.9341551 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -128.5195612 (0.06) | -128.1346188 (0.2) | -128.52 (0.06) | -128.1346188 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 17.91 | 17.92 | |||||||||||||||
| V magnitude | 17.12 | ||||||||||||||||
| R magnitude | 16.67 | 16.20 | |||||||||||||||
| I magnitude | 16.22 | ||||||||||||||||
| J magnitude | 15.74 (0.01) | 15.86 (0.08) | 15.64 | 15.86 (0.08) | |||||||||||||
| H magnitude | 15.51 (0.2) | 15.51 (0.2) | 15.43 | 15.51 (0.2) | |||||||||||||
| K magnitude | 15.28 (0.2) | 15.28 (0.2) | 15.41 | 15.28 (0.2) | |||||||||||||
| u magnitude | 18.93 (0.03) | 18.93 (0.02) | 18.93 (0.02) | ||||||||||||||
| g magnitude | 17.41 (0.006) | 17.49 (0.005) | |||||||||||||||
| r magnitude | 16.88 (0.003) | 16.86 (0.005) | |||||||||||||||
| i magnitude | 16.67 (0.003) | 16.64 (0.006) | |||||||||||||||
| z magnitude | 16.61 (0.004) | 16.55 (0.01) | |||||||||||||||
| G magnitude | 16.91 (0.007) | 16.92 | 16.92 | 16.91 | 16.91 (0.003) | 16.92 | |||||||||||
| BP magnitude | 17.33 (0.007) | 17.34 | 17.34 | ||||||||||||||
| RP magnitude | 16.32 (0.004) | 16.33 | 16.33 | ||||||||||||||
| Pan g magnitude | 17.41 (0.006) | 17.41 (0.006) | 17.41 (0.006) | ||||||||||||||
| Pan r magnitude | 16.88 (0.003) | 16.88 (0.003) | 16.88 (0.003) | ||||||||||||||
| Pan i magnitude | 16.67 (0.003) | 16.67 (0.003) | 16.67 (0.003) | ||||||||||||||
| Pan z magnitude | 16.61 (0.004) | 16.61 (0.004) | 16.61 (0.004) | ||||||||||||||
| Pan y magnitude | 16.57 (0.008) | 16.57 (0.008) | 16.57 (0.008) | ||||||||||||||
| E(B-V) | 0.000 | ||||||||||||||||
* 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.