All names: Gaia DR2 1511318520955499520, Gaia EDR3 1511318525252540672, CBS 254, Gaia DR3 1511318525252540672, SDSS J140247.53+493321.3, GALEX J140247.6+493321, SDSS J140247.52+493321.4, SBSS 1400+497
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 02 47.52 (0.1) | 14 02 47.53 | 14 02 47.52 (0.1) | 14 02 47.53 (0.1) | 14 02 47.52 | |||||
| Declination | 49 33 21.39 (0.1) | 49 33 21.39 | 49 33 21.39 (0.1) | 49 33 21.41 (0.1) | 49 33 21.41 | |||||
| Spectral type | DAO | DA | DA | DA | ||||||
| Effective temperature | [K] | 67403.0 (5102) | 67021.0 (4902) | |||||||
| log(g) | [cgs] | 6.90 (0.2) | 6.93 (0.3) | |||||||
| Mass | [M☉] | 0.38 (0.05) | 0.461 (0.03) | |||||||
| log(Luminosity) | [L☉] | 1.39 (0.2) | ||||||||
| 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] | 0.59 (0.1) | 0.88 (0.2) | 0.59 (0.1) | ||||||
| Distance | [pc] | 1690.10 (403) | 1139.58 (240) | 1690.05 (403) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -6.765431873 (0.1) | -6.956625883 (0.3) | -6.765 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -1.260362618 (0.1) | -0.985127841 (0.3) | -1.26 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.01 (0.01) | 18.01 (0.01) | 18.01 (0.02) | |||||||
| g magnitude | 18.48 (0.007) | 18.48 (0.007) | 18.48 (0.03) | |||||||
| r magnitude | 19.01 (0.01) | 19.01 (0.01) | 19.01 (0.02) | |||||||
| i magnitude | 19.44 (0.02) | 19.44 (0.02) | 19.44 (0.02) | |||||||
| z magnitude | 19.78 (0.07) | 19.78 (0.07) | 19.87 (0.07) | |||||||
| G magnitude | 18.76 (0.01) | 18.78 | 18.76 (0.003) | |||||||
| BP magnitude | 18.59 (0.01) | 18.51 | ||||||||
| RP magnitude | 19.22 (0.04) | 19.05 | ||||||||
| Pan g magnitude | 18.55 (0.006) | |||||||||
| Pan r magnitude | 19.05 (0.009) | |||||||||
| Pan i magnitude | 19.44 (0.008) | |||||||||
| Pan z magnitude | 19.75 (0.02) | |||||||||
| Pan y magnitude | 19.71 (0.07) | |||||||||
| E(B-V) | 0.019 | |||||||||
* 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.