All names: Ton 519, GALEX J102907.2+254007, Gaia EDR3 727462181704654336, Gaia DR3 727462181704654336, USNO-B1.0 1156-00174115, SDSS J102907.32+254008.3, PG 1026+259, SDSS J102907.31+254008.3, SDSS J102907.31+254008.4, Gaia DR2 727462181704654336
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 29 07.33 (0.07) | 10 29 07.31 | 10 29 07.33 (0.09) | 10 29 07.33 | 10 29 07.31 (0.07) | 10 29 07.31 | |||||
| Declination | 25 40 08.28 (0.06) | 25 40 08.38 | 25 40 08.29 (0.08) | 25 40 08.28 | 25 40 08.45 (0.06) | 25 40 08.40 | |||||
| Spectral type | DOZ | DO | DA | DO: | DO | ||||||
| Effective temperature | [K] | 63924.0 (1372) | 124174.0 (97082) | 58333.0 (2363) | |||||||
| log(g) | [cgs] | 7.47 (0.1) | 8.14 | 8.76 (0.1) | |||||||
| Mass | [M☉] | 0.46 (0.05) | 0.816 (2) | ||||||||
| log(Luminosity) | [L☉] | 0.80 (0.1) | |||||||||
| Cooling age | [Gyr] | 0.0001 | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| 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] | 1.74 (0.08) | 1.78 (0.1) | 1.74 | 1.74 (0.08) | ||||||
| Distance | [pc] | 574.18 (28) | 560.84 (40) | 574.18 | 574.18 (28) | ||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 16.60183886 (0.08) | 16.6977187 (0.2) | 16.602 (0.08) | |||||||
| Proper motion (declination) | [mas/yr] | -10.60137533 (0.07) | -10.68279244 (0.2) | -10.601 (0.07) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.30 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 17.20 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 16.28 (0.006) | 16.28 (0.006) | 16.28 (0.01) | ||||||||
| g magnitude | 16.78 (0.004) | 16.78 (0.004) | 16.79 (0.03) | ||||||||
| r magnitude | 17.35 (0.005) | 17.35 (0.005) | 17.35 (0.02) | ||||||||
| i magnitude | 17.74 (0.007) | 17.73 (0.007) | 17.74 (0.02) | ||||||||
| z magnitude | 18.09 (0.02) | 18.09 (0.02) | 18.10 (0.03) | ||||||||
| G magnitude | 17.05 (0.007) | 17.09 | 17.05 | 17.05 (0.003) | |||||||
| BP magnitude | 16.86 (0.007) | 16.75 | |||||||||
| RP magnitude | 17.43 (0.01) | 17.43 | |||||||||
| Pan g magnitude | 16.84 (0.003) | ||||||||||
| Pan r magnitude | 17.34 (0.003) | ||||||||||
| Pan i magnitude | 17.77 (0.005) | ||||||||||
| Pan z magnitude | 18.06 (0.008) | ||||||||||
| Pan y magnitude | 18.29 (0.02) | ||||||||||
| E(B-V) | 0.020 | ||||||||||
* 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.