All names: PM J10228+3904, SDSS J102251.64+390414.2, WDJ102251.75+390414.73, PSO J155.7139+39.0702, USNO-B1.0 1290-00204001, Gaia DR2 755877620910173696, LP 212-60, 10228+3904, Gaia EDR3 755877620910173696, Gaia DR3 755877620910173696, TIC 8172694, 2MASS J10225178+3904149, SDSS J102251.63+390414.2, NLTT 24170, LSPM J1022+3904, J1022+3904
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 22 51.15 (0.06) | 10 22 51.17 (0.09) | 10 22 51.17 (0.09) | 10 22 51.15 | 10 22 51.75 (0.06) | 10 22 51.17 | |||||||||
| Declination | 39 04 11.71 (0.06) | 39 04 11.81 (0.1) | 39 04 11.81 (0.1) | 39 04 11.71 | 39 04 14.73 (0.06) | 39 04 11.81 | |||||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DA | ||||||
| Effective temperature | [K] | 6229.0 (62) | 5774.0 (19) | 6163.3 (55) | 5640.0 (60) | 6673.0 | 5300.0 (50) | 6249.0 (48) | |||||||
| log(g) | [cgs] | 8.30 (0.03) | 8.17 (0.009) | 8.29 (0.03) | 8.16 (0.03) | 8.49 | 8.00 (0) | 8.38 (0.01) | |||||||
| Mass | [M☉] | 0.764 (0.02) | 0.676 (0.008) | 0.673 (0.02) | 0.906 | 0.57 (0.1) | 0.818 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.95 | |||||||||||||
| Cooling age | [Gyr] | 4.5800 | 4.7800 (0.3) | 4.1480 | |||||||||||
| log(H/He) | -3.0 | ||||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | -10.28 | -10.37 | -11.05 | ||||||||||||
| log(Ca/H) | |||||||||||||||
| log(N/He) | |||||||||||||||
| log(O/He) | |||||||||||||||
| log(Na/He) | |||||||||||||||
| log(Mg/He) | |||||||||||||||
| log(Al/He) | |||||||||||||||
| log(Si/He) | |||||||||||||||
| log(P/He) | |||||||||||||||
| log(S/He) | |||||||||||||||
| log(Cl/He) | |||||||||||||||
| log(Sc/He) | |||||||||||||||
| log(Ti/He) | |||||||||||||||
| log(V/He) | |||||||||||||||
| log(Cr/He) | |||||||||||||||
| log(Mn/He) | |||||||||||||||
| log(Fe/He) | |||||||||||||||
| log(Co/He) | |||||||||||||||
| log(Ni/He) | |||||||||||||||
| log(Cu/He) | |||||||||||||||
| log(Zn/He) | |||||||||||||||
| log(Ga/He) | |||||||||||||||
| log(Ge/He) | |||||||||||||||
| log(Sr/He) | |||||||||||||||
| Parallax | [mas] | 25.56 (0.09) | 25.56 (0.09) | 25.74 (0.1) | 25.74 (0.1) | 25.74 (0.1) | 25.74 (0.1) | 25.56 | 25.56 (0.09) | 25.74 (0.1) | |||||
| Distance | [pc] | 39.12 (0.1) | 39.12 (0.1) | 38.85 (0.2) | 38.85 (0.2) | 38.85 (0.2) | 38.85 (0.2) | 37.10 (0.5) | 39.12 | 39.12 (0.1) | 38.85 (0.2) | ||||
| Composition | He | He | He | He | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -432.4095376 (0.08) | -432.370379 (0.2) | -428.0 | -432.41 (0.08) | -432.370379 | |||||||||
| Proper motion (declination) | [mas/yr] | -188.7576739 (0.08) | -188.664999 (0.2) | -180.0 | -188.758 (0.08) | -188.664999 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 17.50 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 17.50 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.60 (0.01) | 16.70 (0.1) | 16.69 | 16.70 (0.1) | |||||||||||
| H magnitude | 16.28 (0.03) | 16.28 | |||||||||||||
| K magnitude | 16.45 (0.03) | 16.45 | |||||||||||||
| u magnitude | 18.73 (0.02) | 18.81 | 18.80 (0.02) | 18.72 (0.02) | |||||||||||
| g magnitude | 17.59 | 17.60 (0.005) | 17.59 (0.005) | ||||||||||||
| r magnitude | 17.28 | 17.29 (0.005) | 17.29 (0.005) | ||||||||||||
| i magnitude | 17.22 | 17.25 (0.005) | 17.23 (0.006) | ||||||||||||
| z magnitude | 17.24 | 17.28 (0.006) | 17.25 (0.01) | ||||||||||||
| G magnitude | 17.30 (0.004) | 17.31 | 17.31 | 17.30 | 17.30 (0.003) | 17.31 | |||||||||
| BP magnitude | 17.55 (0.004) | 17.59 | 17.59 | ||||||||||||
| RP magnitude | 16.90 (0.006) | 16.91 | 16.91 | ||||||||||||
| Pan g magnitude | 17.53 (0.004) | 17.53 (0.005) | 17.53 (0.01) | ||||||||||||
| Pan r magnitude | 17.28 (0.008) | 17.28 (0.008) | 17.28 (0.01) | ||||||||||||
| Pan i magnitude | 17.23 (0.003) | 17.23 (0.003) | 17.25 (0.005) | ||||||||||||
| Pan z magnitude | 17.28 (0.007) | 17.28 (0.006) | 17.28 (0.006) | ||||||||||||
| Pan y magnitude | 17.32 (0.02) | 17.32 (0.02) | 17.32 (0.01) | ||||||||||||
| 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.