All names: Gaia DR2 1285060846393119360, SDSS J141648.85+301654.0, Gaia EDR3 1285060846393119360, Gaia DR3 1285060846393119360, SDSS J141648.86+301653.9, GALEX J141648.9+301654, J1416+3016, SDSS J141648.86+301653.99
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 16 48.83 (0.3) | 14 16 48.86 | 14 16 48.86 | 14 16 48.83 (0.6) | 14 16 48.86 (0.3) | |||||
| Declination | 30 16 54.14 (0.4) | 30 16 54.01 | 30 16 54.02 | 30 16 54.14 (0.5) | 30 16 54.03 (0.4) | |||||
| Spectral type | DQ | DQ | DQ | DC: | ||||||
| Effective temperature | [K] | 7518.0 (253) | 6957.0 (17) | |||||||
| log(g) | [cgs] | 8.15 | 8.00 (0) | |||||||
| Mass | [M☉] | 0.6669 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.6100 | ||||||||
| log(H/He) | ||||||||||
| log(C/He) | -5.8707 (0.1) | -6.535 (0.05) | ||||||||
| 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] | 4.13 (0.5) | 4.46 | 4.46 (0.8) | 4.13 (0.5) | |||||
| Distance | [pc] | 242.06 (30) | 224.40 (39) | 224.40 (39) | 242.06 (30) | |||||
| Composition | He | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -22.29504837 (0.6) | -22.3079557 (2) | -22.295 (0.6) | ||||||
| Proper motion (declination) | [mas/yr] | 6.693575343 (0.6) | 7.204854683 (1) | 6.694 (0.6) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.74 (0.06) | 20.71 (0.06) | 20.74 (0.06) | |||||||
| g magnitude | 20.33 (0.02) | 20.34 (0.03) | 20.33 (0.02) | |||||||
| r magnitude | 20.28 (0.02) | 20.29 (0.03) | 20.28 (0.03) | |||||||
| i magnitude | 20.30 (0.03) | 20.32 (0.03) | 20.30 (0.03) | |||||||
| z magnitude | 20.27 (0.1) | 20.31 (0.1) | 20.27 (0.1) | |||||||
| G magnitude | 20.23 (0.08) | 20.29 | 20.23 (0.006) | |||||||
| BP magnitude | 20.44 (0.08) | 20.22 | ||||||||
| RP magnitude | 20.01 (0.09) | 19.80 | ||||||||
| Pan g magnitude | 20.33 (0.02) | |||||||||
| Pan r magnitude | 20.20 (0.02) | |||||||||
| Pan i magnitude | 20.29 (0.02) | |||||||||
| Pan z magnitude | 20.39 (0.02) | |||||||||
| Pan y magnitude | 20.34 (0.1) | |||||||||
| E(B-V) | 0.016 | |||||||||
* 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.