All names: GALEX J103955.0+380037, WIRED J103955.08+380037.0, TIC 450327435, NLTT 24978, WDJ103955.15+380036.76, USNO-B1.0 1280-00228894, SDSS J103955.08+380037.0, LSPM J1039+3800, LP 263-8, 2MASS J10395514+3800358, Gaia EDR3 752057981939651584, PSO J159.9787+38.0105, SDSS J103955.08+380037.1, Gaia DR3 752057981939651584, Gaia DR2 752057981939651584, J1039+3800
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 39 54.87 (0.09) | 10 39 55.08 | 10 39 54.88 (0.1) | 10 39 54.87 | 10 39 55.15 (0.09) | 10 39 54.88 | 10 39 55.08 | ||||||||
| Declination | 38 00 38.05 (0.08) | 38 00 37.00 | 38 00 38.01 (0.1) | 38 00 38.05 | 38 00 36.76 (0.08) | 38 00 38.01 | 38 00 37.06 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | |||||||||
| Effective temperature | [K] | 7149.0 (47) | 7025.0 (70) | 7034.0 | 6775.0 | 7233.0 (105) | 7004.0 (38) | ||||||||
| log(g) | [cgs] | 8.00 (0.02) | 7.97 (0.03) | 7.96 | 7.84 | 8.06 (0.03) | 7.83 (0.07) | ||||||||
| Mass | [M☉] | 0.595 (0.01) | 0.572 (0.02) | 0.569 | 0.484 | 0.632 (0.02) | 0.504 (0.04) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 1.4900 | 1.4360 (0.07) | 1.4220 | 1.3870 | ||||||||||
| 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] | 13.08 (0.1) | 12.88 (0.1) | 12.88 (0.1) | 12.88 (0.1) | 13.08 | 13.08 (0.1) | 12.88 (0.1) | |||||||
| Distance | [pc] | 76.48 (0.7) | 77.64 (0.8) | 77.65 (0.9) | 77.65 (0.9) | 76.48 | 76.48 (0.7) | 77.65 (0.9) | |||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -204.4062956 (0.1) | -204.4658003 (0.2) | -204.406 (0.1) | -204.4658003 | ||||||||||
| Proper motion (declination) | [mas/yr] | 80.35484127 (0.1) | 80.52192 (0.2) | 80.355 (0.1) | 80.52192 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 18.50 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 18.20 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 17.20 (0.03) | 16.92 (0.1) | 16.92 (0.1) | ||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.53 (0.02) | 18.52 (0.02) | 18.53 (0.01) | 18.53 (0.01) | 18.53 (0.03) | ||||||||||
| g magnitude | 17.99 (0.006) | 17.99 (0.009) | 17.99 (0.006) | 18.01 (0.02) | |||||||||||
| r magnitude | 17.85 (0.006) | 17.83 (0.005) | 17.85 (0.006) | 17.83 (0.02) | |||||||||||
| i magnitude | 17.80 (0.007) | 17.81 (0.004) | 17.80 (0.007) | 17.80 (0.02) | |||||||||||
| z magnitude | 17.84 (0.02) | 17.86 (0.006) | 17.84 (0.02) | 17.84 (0.02) | |||||||||||
| G magnitude | 17.81 (0.01) | 17.84 | 17.81 | 17.81 (0.003) | 17.84 | ||||||||||
| BP magnitude | 18.01 (0.01) | 18.00 | 18.00 | ||||||||||||
| RP magnitude | 17.50 (0.01) | 17.50 | 17.50 | ||||||||||||
| Pan g magnitude | 17.99 (0.008) | 17.99 (0.009) | 17.99 (0.009) | ||||||||||||
| Pan r magnitude | 17.83 (0.006) | 17.83 (0.005) | 17.83 (0.005) | ||||||||||||
| Pan i magnitude | 17.81 (0.005) | 17.81 (0.004) | 17.81 (0.004) | ||||||||||||
| Pan z magnitude | 17.86 (0.007) | 17.86 (0.006) | 17.86 (0.006) | ||||||||||||
| Pan y magnitude | 17.88 (0.01) | 17.88 (0.02) | 17.88 (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.