All names: LHS 5040, PM J01457+2918, WD 0142+290, Gaia EDR3 302388929117252736, LP 296-19, WDJ014544.58+291823.76, USNO-B1.0 1193-00022300, NLTT 5850, TIC 26835651, PSO J026.4376+29.3066, Gaia DR2 302388929117252736, SDSS J014544.96+291823.9, 2MASS J01454453+2918238, J0145+2918, LSPM J0145+2918, SDSS J014544.97+291824.0, Gaia DR3 302388929117252736, 01457+2918
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Blouin et al. 2019 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 45 45.22 (0.1) | 01 45 45.20 (0.2) | 01 45 45.22 | 01 45 44.58 (0.1) | 01 45 45.20 | 01 45 44.16 | |||||||
| Declination | 29 18 23.97 (0.1) | 29 18 23.97 (0.1) | 29 18 23.97 | 29 18 23.76 (0.1) | 29 18 23.97 | 29 18 24.12 | |||||||
| Spectral type | DC | DC | DC | DC | DA: | DC | DC | ||||||
| Effective temperature | [K] | 5191.0 (27) | 4687.0 (24) | 5125.0 (40) | 4740.0 (879) | 5179.0 (61) | |||||||
| log(g) | [cgs] | 8.16 (0.01) | 7.84 (0.02) | 8.12 (0.03) | 8.00 (0) | 8.16 (0.03) | |||||||
| Mass | [M☉] | 0.685 (0.01) | 0.473 (0.01) | 0.657 (0.02) | 0.58 (0.1) | 0.681 (0.03) | |||||||
| log(Luminosity) | [L☉] | -4.14 | |||||||||||
| Cooling age | [Gyr] | 5.2200 | 6.4220 (0.3) | ||||||||||
| 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] | 24.59 (0.1) | 24.48 (0.2) | 24.48 (0.2) | 24.48 (0.2) | 24.59 | 24.59 (0.1) | 24.48 (0.2) | |||||
| Distance | [pc] | 40.67 (0.2) | 40.85 (0.3) | 40.85 (0.3) | 40.85 (0.3) | 39.60 (14) | 40.67 | 40.67 (0.2) | 40.85 (0.3) | ||||
| Composition | H | He | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 523.6864099 (0.1) | 523.6953193 (0.3) | 523.686 (0.1) | 523.6953193 | ||||||||
| Proper motion (declination) | [mas/yr] | 13.23699722 (0.1) | 13.17380026 (0.3) | 13.237 (0.1) | 13.17380026 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 18.40 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.00 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.71 (0.02) | 16.56 (0.1) | 16.56 | 16.56 (0.1) | |||||||||
| H magnitude | 16.09 (0.2) | 16.09 (0.2) | 16.09 | 16.09 (0.2) | |||||||||
| K magnitude | 15.51 (0.03) | 15.51 | |||||||||||
| u magnitude | 19.94 (0.03) | 19.99 (0.04) | 19.94 (0.04) | ||||||||||
| g magnitude | 18.49 (0.009) | 18.56 (0.007) | |||||||||||
| r magnitude | 17.92 (0.005) | 17.90 (0.007) | |||||||||||
| i magnitude | 17.66 (0.007) | 17.63 (0.008) | |||||||||||
| z magnitude | 17.62 (0.006) | 17.52 (0.02) | |||||||||||
| G magnitude | 17.95 (0.01) | 17.97 | 17.95 | 17.95 (0.003) | 17.97 | ||||||||
| BP magnitude | 18.40 (0.01) | 18.41 | 18.41 | ||||||||||
| RP magnitude | 17.35 (0.01) | 17.39 | 17.39 | ||||||||||
| Pan g magnitude | 18.49 (0.01) | 18.49 (0.009) | 18.49 (0.009) | ||||||||||
| Pan r magnitude | 17.95 (0.02) | 17.92 (0.005) | 17.92 (0.005) | ||||||||||
| Pan i magnitude | 17.69 (0.003) | 17.70 (0.01) | 17.70 (0.01) | ||||||||||
| Pan z magnitude | 17.63 (0.01) | 17.62 (0.006) | 17.62 (0.006) | ||||||||||
| Pan y magnitude | 17.59 (0.02) | 17.60 (0.02) | 17.60 (0.02) | ||||||||||
| 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.