All names: SDSS J141804.68+040821.7, Gaia EDR3 3669400430255790336, WDJ141804.68+040821.76, Gaia DR3 3669400430255790336, SDSS J141804.67+040821.7, Gaia DR2 3669400430255790336, SDSS J141804.67+040821.8, J1418+0408, GALEX J141804.7+040822, WD 1415+043, SDSS J141804.68+040821.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 18 04.66 (0.1) | 14 18 04.68 | 14 18 04.67 (0.2) | 14 18 04.66 | 14 18 04.68 (0.1) | 14 18 04.67 | 14 18 04.68 | 14 18 03.98 | 14 18 04.68 | 14 18 04.68 | ||||||
| Declination | 04 08 20.63 (0.08) | 04 08 21.81 | 04 08 20.67 (0.1) | 04 08 20.63 | 04 08 21.76 (0.08) | 04 08 20.67 | 04 08 21.80 | 04 08 17.16 | 04 08 21.76 | 04 08 21.77 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA6.2 | DA | DA | ||||||||
| Effective temperature | [K] | 7940.0 (44) | 7730.0 (60) | 8128.0 (155) | 8136.0 (33) | 7644.0 (42) | 8166.0 (32) | |||||||||
| log(g) | [cgs] | 8.47 (0.01) | 8.43 (0.1) | 8.51 (0.03) | 8.99 (0.01) | 8.42 (0.07) | 9.00 (0.01) | |||||||||
| Mass | [M☉] | 0.897 (0.01) | 0.87 (0.07) | 0.92 (0.03) | 0.852 (0.04) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 2.8800 | 2.8184 | |||||||||||||
| 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] | 16.06 (0.1) | 16.11 (0.2) | 16.11 (0.2) | 16.06 | 16.06 (0.1) | 16.11 (0.2) | |||||||||
| Distance | [pc] | 62.26 (0.5) | 62.07 (0.8) | 62.08 (0.8) | 62.26 | 62.26 (0.5) | 62.08 (0.8) | |||||||||
| Composition | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.67146696 (0.1) | -17.71352277 (0.3) | -17.671 (0.1) | -17.71352277 | -20.1 | -18.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -70.48621666 (0.1) | -70.69281437 (0.2) | -70.486 (0.1) | -70.69281437 | -69.4 | -72.0 | |||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | ||||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | ||||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 17.25 (0.01) | |||||||||||||||
| H magnitude | 17.03 (0.04) | 17.03 (0.04) | ||||||||||||||
| K magnitude | 16.95 (0.07) | 16.95 (0.07) | ||||||||||||||
| u magnitude | 18.20 (0.01) | 18.20 (0.01) | 18.20 (0.01) | 18.20 (0.01) | 18.17 (0.02) | 18.17 | 18.20 (0.02) | 18.17 (0.02) | ||||||||
| g magnitude | 17.79 (0.005) | 17.79 (0.005) | 17.79 (0.005) | 17.82 (0.02) | 17.82 | 17.84 (0.02) | 17.82 (0.03) | |||||||||
| r magnitude | 17.69 (0.006) | 17.69 (0.006) | 17.69 (0.006) | 17.69 (0.02) | 17.69 | 17.69 (0.02) | 17.69 (0.02) | |||||||||
| i magnitude | 17.73 (0.007) | 17.73 (0.007) | 17.73 (0.007) | 17.72 (0.02) | 17.71 | 17.73 (0.02) | 17.71 (0.02) | |||||||||
| z magnitude | 17.81 (0.02) | 17.82 (0.02) | 17.82 (0.02) | 17.75 (0.03) | 17.77 | 17.80 (0.03) | 17.77 (0.03) | |||||||||
| G magnitude | 17.65 (0.01) | 17.68 | 17.65 | 17.65 (0.003) | 17.68 | |||||||||||
| BP magnitude | 17.76 (0.01) | 17.77 | 17.77 | |||||||||||||
| RP magnitude | 17.43 (0.02) | 17.41 | 17.41 | |||||||||||||
| Pan g magnitude | 17.78 (0.005) | 17.78 (0.004) | ||||||||||||||
| Pan r magnitude | 17.70 (0.005) | 17.70 (0.004) | ||||||||||||||
| Pan i magnitude | 17.73 (0.005) | 17.73 (0.005) | ||||||||||||||
| Pan z magnitude | 17.83 (0.01) | 17.83 (0.01) | ||||||||||||||
| Pan y magnitude | 17.89 (0.01) | 17.89 (0.01) | ||||||||||||||
| E(B-V) | 0.003 | |||||||||||||||
* 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.