All names: Gaia DR3 4960499042889705344, MCT 0138-4014, EC 01380-4014, Gaia EDR3 4960499042889705344, UCAC4 251-001645, 2MASS J01401099-3959248, USNO-B1.0 0500-00015490, WD 0138-402, HE0138-4014, GALEX J014011.0-395924, HE 0138-4014, TIC 42073120, Gaia DR2 4960499042889705344
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Koester et al. 2009 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 40 10.99 (0.02) | 01 40 10.99 (0.03) | 01 40 11.00 | 01 40 10.99 | 01 40 11.00 (0.02) | 01 40 10.18 | ||||
| Declination | -39 59 25.66 (0.03) | -39 59 25.63 (0.04) | -39 59 25.00 | -39 59 25.66 | -39 59 24.58 (0.03) | -39 59 19.68 | ||||
| Spectral type | DA | DA | DA | DA2 | DA2 | |||||
| Effective temperature | [K] | 23541.0 (530) | 21698.0 (44) | 21634.0 (90) | 21604.0 (271) | |||||
| log(g) | [cgs] | 8.05 (0.07) | 7.90 (0.007) | 7.82 (0.01) | 7.97 (0.01) | |||||
| Mass | [M☉] | 0.659 (0.04) | 0.54 | 0.612 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0319 | ||||||||
| 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] | 7.24 (0.04) | 7.28 (0.06) | 7.24 | 7.24 (0.04) | |||||
| Distance | [pc] | 138.17 (0.8) | 138.00 | 137.32 (1) | 138.17 | 138.17 (0.8) | ||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -5.686626242 (0.03) | -5.670667258 (0.06) | -5.687 (0.03) | ||||||
| Proper motion (declination) | [mas/yr] | -67.79481099 (0.04) | -67.86131209 (0.07) | -67.795 (0.04) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.37 | 16.27 (0.1) | ||||||||
| V magnitude | 16.50 | 16.27 (0.05) | ||||||||
| R magnitude | 25.30 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.62 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | 16.16 (0.05) | |||||||||
| r magnitude | 16.30 (0.1) | |||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.30 (0.002) | 16.32 | 16.30 | 16.30 (0.003) | ||||||
| BP magnitude | 16.21 (0.002) | 16.17 | ||||||||
| RP magnitude | 16.51 (0.004) | 16.51 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.002 | |||||||||
* 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.