All names: TIC 213005240, SDSS J004022.88-002130.0, WDJ004022.88-002130.07, WD 0037-00, USNO-B1.0 0896-00007362, Gaia DR2 2542961560852591744, GALEX J004022.8-002128, PB 6089, Gaia EDR3 2542961560852591744, SDSS J004022.87-002130.0, SDSS J004022.88-002130.1, uvby98 680003748, FBS 0037-006, [MMN2004c] WD J0040-0021, WIRED J004022.88-002130.0, EGGR 561, WD 0037-006, PG 0037-006, 2MASS J00402288-0021299, Gaia DR3 2542961560852591744
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Gianninas et al. 2011 | Tremblay et al. 2011 | Koester et al. 2009 | Mukadam et al. 2004 | 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 | 00 40 22.91 (0.02) | 00 40 22.88 | 00 40 22.91 (0.04) | 00 40 22.91 | 00 40 22.88 (0.02) | 00 40 22.91 | 00 40 22.88 | 00 40 20.66 | 00 40 22.88 | 00 40 22.87 | ||||||||||
Declination | -00 21 30.17 (0.01) | -00 21 30.10 | -00 21 30.17 (0.04) | -00 21 30.17 | -00 21 30.06 (0.01) | -00 21 30.17 | -00 21 30.08 | -00 21 08.28 | -00 21 30.08 | -00 21 30.06 | ||||||||||
Spectral type | DA | DA | DA: | DA3.2 | DA | DA5 | DA | DAH | ||||||||||||
Effective temperature | [K] | 10331.0 | 11025.0 | 15690.0 (260) | 16940.0 (90) | 16403.0 (19) | 16160.0 (60) | 11381.0 (47) | 16159.0 (62) | 15324.0 (163) | 16133.0 (57) | |||||||||
log(g) | [cgs] | 7.37 | 7.38 | 7.98 (0.05) | 7.96 (0.02) | 7.74 (0.004) | 7.88 (0.01) | 7.50 (0.005) | 7.88 (0.01) | 7.66 (0.04) | 7.90 (0.01) | |||||||||
Mass | [M☉] | 0.311 | 0.298 | 0.6 (0.03) | 0.59 (0.01) | 0.362 (0.002) | 0.469 (0.02) | |||||||||||||
log(Luminosity) | [L☉] | |||||||||||||||||||
Cooling age | [Gyr] | 0.2950 | 0.2590 | 0.1259 | ||||||||||||||||
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] | 18.24 (0.03) | 18.31 (0.05) | 18.24 | 18.24 (0.03) | 18.31 (0.05) | ||||||||||||||
Distance | [pc] | 54.83 (0.08) | 54.61 (0.1) | 51.00 | 54.83 | 54.83 (0.08) | 54.61 (0.1) | |||||||||||||
Composition | H | H | ||||||||||||||||||
Proper motion (right ascension) | [mas/yr] | 20.19605718 (0.04) | 20.18994453 (0.09) | 20.196 (0.04) | 20.18994453 | 5.9 | 4.0 | |||||||||||||
Proper motion (declination) | [mas/yr] | -6.678982946 (0.03) | -6.547019311 (0.06) | -6.679 (0.04) | -6.547019311 | -2.4 | -5.0 | |||||||||||||
Variability | NOV | NOV | ||||||||||||||||||
Magnetic | ||||||||||||||||||||
Bd | [MG] | |||||||||||||||||||
Infrared excess (disk) | ||||||||||||||||||||
Binarity | ||||||||||||||||||||
B magnitude | 15.29 | |||||||||||||||||||
V magnitude | 14.85 | 15.10 | ||||||||||||||||||
R magnitude | ||||||||||||||||||||
I magnitude | ||||||||||||||||||||
J magnitude | 14.90 (0.04) | |||||||||||||||||||
H magnitude | 14.77 (0.006) | |||||||||||||||||||
K magnitude | 14.81 (0.01) | |||||||||||||||||||
u magnitude | 15.22 (0.005) | 15.22 (0.005) | 15.21 (0.005) | 15.22 (0.03) | 15.22 | 15.21 (0.02) | 15.22 (0.01) | |||||||||||||
g magnitude | 14.78 (0.004) | 14.83 | 14.78 (0.004) | 14.77 (0.004) | 14.77 (0.06) | 14.83 | 14.75 (0.06) | 14.83 (0.04) | ||||||||||||
r magnitude | 14.95 (0.005) | 14.95 (0.005) | 14.93 (0.003) | 14.95 (0.02) | 14.96 | 14.95 (0.02) | 14.96 (0.02) | |||||||||||||
i magnitude | 15.11 (0.005) | 15.11 (0.005) | 15.12 (0.005) | 15.12 (0.02) | 15.13 | 15.11 (0.02) | 15.13 (0.02) | |||||||||||||
z magnitude | 15.33 (0.006) | 15.33 (0.006) | 15.30 (0.006) | 15.29 (0.02) | 15.29 | 15.27 (0.02) | 15.29 (0.03) | |||||||||||||
G magnitude | 14.85 (0.001) | 14.87 | 14.85 | 14.85 (0.003) | 14.87 | |||||||||||||||
BP magnitude | 14.87 (0.001) | 14.86 | 14.86 | |||||||||||||||||
RP magnitude | 14.82 (0.001) | 14.83 | 14.83 | |||||||||||||||||
Pan g magnitude | 14.82 (0.005) | |||||||||||||||||||
Pan r magnitude | 14.96 (0.004) | |||||||||||||||||||
Pan i magnitude | 15.15 (0.003) | |||||||||||||||||||
Pan z magnitude | 15.32 (0.002) | |||||||||||||||||||
Pan y magnitude | 15.43 (0.004) | |||||||||||||||||||
E(B-V) | 0.002 |
* 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.