All names: Gaia EDR3 966561537900256512, USNO-B1.0 1377-00210694, WD 0637+47, Gaia DR3 966561537900256512, 06412+4744, Gaia DR2 966561537900256512, EGGR 212, GCRV 21691, PM J06412+4744, LP 161-12, 1SWASP J064112.82+474419.8, GD 77, TIC 274327995, 0637+477, GEN# +6.10060077, GALEX J064112.7+474418, WDJ064112.82+474419.65, WD 0637+477, WD 0637+478, 2MASS J06411281+4744195, LSPM J0641+4744
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Hardy et al. 2023a | Leggett et al. 2018 | MWDD H | Gaia DR2 | Stilism | Ferrario et al. 2015 | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 06 41 12.80 (0.02) | 06 41 12.80 (0.04) | 06 41 12.80 | 06 41 12.82 (0.02) | 06 41 12.80 | 06 41 12.24 | |||||||||
Declination | 47 44 16.92 (0.02) | 47 44 17.01 (0.04) | 47 44 16.92 | 47 44 19.65 (0.02) | 47 44 17.01 | 47 44 26.88 | |||||||||
Spectral type | DA | DAP3.7 | DA | DA | DAP | DA | DA | DAP3.4 | DAP5 | ||||||
Effective temperature | [K] | 13706.9 (137) | 13664.0 (890) | 13317.0 | 14870.0 (120) | 14060.0 (3216) | 14650.0 (590) | 13760.0 (101) | |||||||
log(g) | [cgs] | 8.23 (0.01) | 8.29 (0.04) | 8.20 | 8.00 (0) | 8.30 (0.06) | 8.22 (0.006) | ||||||||
Mass | [M☉] | 0.7527227830001292 (0.02) | 0.787 (0.03) | 0.728 | 0.69 | 0.61 (0.1) | 0.8 (0.04) | 0.746 (0.005) | |||||||
log(Luminosity) | [L☉] | -2.23 | |||||||||||||
Cooling age | [Gyr] | 0.4030 (0.08) | 0.3743 | ||||||||||||
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] | 24.87 (0.03) | 26.07 (0.2) | 24.86 (0.04) | 24.87 | 24.87 (0.03) | 24.86 (0.04) | ||||||||
Distance | [pc] | 40.21 (0.04) | 38.36 (0.3) | 40.23 (0.07) | 48.10 (10) | 40.00 | 40.21 | 40.21 (0.04) | 40.23 (0.07) | ||||||
Composition | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -16.53370898 (0.02) | -16.61885559 (0.07) | -16.534 (0.03) | -16.61885559 | ||||||||||
Proper motion (declination) | [mas/yr] | -170.5777797 (0.02) | -170.6431404 (0.06) | -170.578 (0.02) | -170.6431404 | ||||||||||
Variability | NOV | ||||||||||||||
Magnetic | yes | yes | |||||||||||||
Bd | [MG] | 1.2 (0.2) | |||||||||||||
Infrared excess (disk) | |||||||||||||||
Binarity | |||||||||||||||
B magnitude | 14.93 | ||||||||||||||
V magnitude | |||||||||||||||
R magnitude | 14.90 | ||||||||||||||
I magnitude | |||||||||||||||
J magnitude | 15.05 (0.05) | ||||||||||||||
H magnitude | 15.14 (0.08) | ||||||||||||||
K magnitude | 15.23 (0.2) | ||||||||||||||
u magnitude | |||||||||||||||
g magnitude | |||||||||||||||
r magnitude | |||||||||||||||
i magnitude | |||||||||||||||
z magnitude | |||||||||||||||
G magnitude | 14.82 (0.002) | 14.84 | 14.82 | 14.82 (0.003) | 14.84 | ||||||||||
BP magnitude | 14.81 (0.002) | 14.80 | 14.80 | ||||||||||||
RP magnitude | 14.89 (0.002) | 14.90 | 14.90 | ||||||||||||
Pan g magnitude | 14.73 (0.002) | ||||||||||||||
Pan r magnitude | 14.96 (0.002) | ||||||||||||||
Pan i magnitude | 15.20 (0.002) | ||||||||||||||
Pan z magnitude | 15.43 (0.002) | ||||||||||||||
Pan y magnitude | 15.57 (0.006) | ||||||||||||||
E(B-V) | 0.001 |
* 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.