All names: LAMOST J072959.90+271640.2, Gaia DR2 872009447786700672, Gaia EDR3 872009447786700672, WDJ073000.01+271641.19, SDSS J072959.99+271640.9, J0729+2716, SDSS J072959.99+271641.0, 2MASS J07300002+2716412, LSPM J0730+2716W, WDJ07300.01+271641.18, Gaia DR3 872009447786700672, PM J07300+2716W, 07300+2716W, USNO-B1.0 1172-00184642, TIC 26923195
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 29 59.84 (0.05) | 07 29 59.85 | 07 29 59.84 | 07 30 00.01 (0.05) | 07 29 59.85 | ||||||||||
| Declination | 27 16 39.72 (0.04) | 27 16 39.77 | 27 16 39.72 | 27 16 41.19 (0.04) | 27 16 39.77 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 9257.0 (38) | 9264.0 (34) | 9257.0 (38) | 9246.0 | 9131.0 | 9600.0 (161) | 9177.0 (89) | |||||||
| log(g) | [cgs] | 7.99 (0.008) | 7.98 (0.008) | 7.98 (0.008) | 7.98 | 7.91 | 8.44 (0.1) | 7.97 (0.02) | |||||||
| Mass | [M☉] | 0.592 (0.007) | 0.588 (0.007) | 0.588 (0.007) | 0.586 | 0.524 | 0.88 (0.07) | 0.584 (0.01) | |||||||
| log(Luminosity) | [L☉] | -3.17 | |||||||||||||
| Cooling age | [Gyr] | 0.7500 | 0.7189 | 0.6984 | |||||||||||
| 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] | 17.33 (0.06) | 17.24 (0.08) | 17.24 (0.08) | 17.33 | 17.33 (0.06) | 17.24 (0.08) | ||||||||
| Distance | [pc] | 57.70 (0.2) | 58.00 (0.3) | 58.01 (0.3) | 44.20 (1) | 57.70 | 57.70 (0.2) | 58.01 (0.3) | |||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -141.5225738 (0.07) | -141.3486583 (0.1) | -136.0 | -141.523 (0.07) | -141.3486583 | |||||||||
| Proper motion (declination) | [mas/yr] | -91.53226389 (0.05) | -91.59737268 (0.1) | -89.0 | -91.532 (0.05) | -91.59737268 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 16.40 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 15.90 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.07 (0.01) | 15.97 | 15.96 (0.07) | ||||||||||||
| H magnitude | 15.90 (0.03) | 15.90 | 15.89 (0.1) | ||||||||||||
| K magnitude | 15.97 (0.03) | 15.97 | 15.97 (0.2) | ||||||||||||
| u magnitude | 16.66 (0.006) | 16.71 | 16.67 (0.007) | 16.67 (0.007) | |||||||||||
| g magnitude | 16.24 | 16.28 (0.003) | 16.28 (0.003) | ||||||||||||
| r magnitude | 16.28 | 16.29 (0.005) | 16.29 (0.005) | ||||||||||||
| i magnitude | 16.37 | 16.36 (0.005) | 16.36 (0.005) | ||||||||||||
| z magnitude | 16.53 | 16.51 (0.009) | 16.51 (0.009) | ||||||||||||
| G magnitude | 16.22 (0.003) | 16.25 | 16.22 | 16.22 (0.003) | 16.25 | ||||||||||
| BP magnitude | 16.30 (0.003) | 16.30 | 16.30 | ||||||||||||
| RP magnitude | 16.09 (0.004) | 16.08 | 16.08 | ||||||||||||
| Pan g magnitude | 16.25 (0.002) | 16.25 (0.002) | |||||||||||||
| Pan r magnitude | 16.30 (0.003) | 16.30 (0.004) | |||||||||||||
| Pan i magnitude | 16.41 (0.003) | 16.41 (0.003) | |||||||||||||
| Pan z magnitude | 16.54 (0.005) | 16.54 (0.004) | |||||||||||||
| Pan y magnitude | 16.63 (0.007) | 16.63 (0.006) | |||||||||||||
| 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.