All names: PG 1442+144, SDSS J144510.28+141344.9, LAMOST J144510.28+141344.9, LAMOST J144510.37+141346.1, Gaia DR2 1185738013981539840, SDSS J144510.28+141345.0, Gaia EDR3 1185738013981539840, GALEX J144510.3+141346, Gaia DR3 1185738013981539840
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 45 10.27 (0.04) | 14 45 10.28 | 14 45 10.27 (0.07) | 14 45 10.28 (0.04) | 14 45 10.28 | ||||
| Declination | 14 13 44.94 (0.04) | 14 13 44.96 | 14 13 44.94 (0.05) | 14 13 45.02 (0.04) | 14 13 44.99 | ||||
| Spectral type | DAO | DA | DA | ||||||
| Effective temperature | [K] | 48341.0 (688) | 49075.0 (573) | ||||||
| log(g) | [cgs] | 6.86 (0.06) | 6.95 (0.04) | ||||||
| Mass | [M☉] | 0.31 (0.01) | 0.433 (0.001) | ||||||
| log(Luminosity) | [L☉] | 0.76 (0.05) | |||||||
| Cooling age | [Gyr] | 0.0001 | |||||||
| 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] | 1.25 (0.05) | 1.23 (0.07) | 1.25 (0.05) | |||||
| Distance | [pc] | 802.73 (35) | 811.36 (45) | 802.76 (35) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -12.1580809 (0.07) | -12.41223396 (0.1) | -12.158 (0.07) | |||||
| Proper motion (declination) | [mas/yr] | -4.975108127 (0.05) | -4.783238586 (0.1) | -4.975 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 15.70 (0.005) | 15.70 (0.005) | 15.70 (0.01) | ||||||
| g magnitude | 16.08 (0.004) | 16.08 (0.004) | 16.12 (0.01) | ||||||
| r magnitude | 16.61 (0.005) | 16.61 (0.005) | 16.61 (0.02) | ||||||
| i magnitude | 17.00 (0.006) | 17.00 (0.006) | 16.99 (0.01) | ||||||
| z magnitude | 17.33 (0.01) | 17.33 (0.01) | 17.30 (0.02) | ||||||
| G magnitude | 16.35 (0.003) | 16.39 | 16.35 (0.003) | ||||||
| BP magnitude | 16.18 (0.003) | 16.10 | |||||||
| RP magnitude | 16.69 (0.005) | 16.68 | |||||||
| Pan g magnitude | 16.16 (0.003) | ||||||||
| Pan r magnitude | 16.63 (0.004) | ||||||||
| Pan i magnitude | 17.00 (0.005) | ||||||||
| Pan z magnitude | 17.28 (0.003) | ||||||||
| Pan y magnitude | 17.47 (0.008) | ||||||||
| E(B-V) | 0.026 | ||||||||
* 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.