All names: WDJ04499.81+242336.75, Gaia DR3 147095826660107520, LAMOST J044909.81+242336.7, SDSS J044909.81+242336.8, WDJ044909.81+242336.75, GALEX J044909.7+242337, Gaia DR2 147095826660107520, Gaia EDR3 147095826660107520, SDSS J044909.80+242336.7, J0449+2423
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 04 49 09.80 (0.07) | 04 49 09.80 | 04 49 09.80 | 04 49 09.81 (0.07) | 04 49 09.80 | ||||||||
Declination | 24 23 36.79 (0.04) | 24 23 36.79 | 24 23 36.79 | 24 23 36.75 (0.04) | 24 23 36.79 | ||||||||
Spectral type | DA | DA | DA | DA | DA | ||||||||
Effective temperature | [K] | 14018.0 (164) | 14043.0 (164) | 13560.0 | 13910.0 | 15602.0 (301) | 13900.0 (272) | ||||||
log(g) | [cgs] | 8.48 (0.009) | 8.46 (0.01) | 8.43 | 8.45 | 8.40 (0.04) | 8.49 (0.01) | ||||||
Mass | [M☉] | 0.914 (0.008) | 0.897 (0.01) | 0.881 | 0.872 | 0.86 (0.03) | 0.916 (0.01) | ||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 0.5208 | 0.5164 | ||||||||||
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] | 10.52 (0.08) | 10.29 (0.1) | 10.52 | 10.52 (0.08) | 10.29 (0.1) | |||||||
Distance | [pc] | 95.10 (0.7) | 97.16 (1) | 95.10 | 95.10 (0.7) | 97.16 (1) | |||||||
Composition | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -2.999959603 (0.1) | -2.561689777 (0.2) | -3.0 (0.1) | -2.561689777 | ||||||||
Proper motion (declination) | [mas/yr] | 2.582741075 (0.06) | 2.410667905 (0.1) | 2.583 (0.06) | 2.410667905 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | |||||||||||||
H magnitude | |||||||||||||
K magnitude | |||||||||||||
u magnitude | 17.25 (0.008) | 17.25 (0.008) | |||||||||||
g magnitude | 16.97 (0.004) | 16.97 (0.004) | |||||||||||
r magnitude | 17.20 (0.005) | 17.20 (0.005) | |||||||||||
i magnitude | 17.42 (0.006) | 17.42 (0.006) | |||||||||||
z magnitude | 17.70 (0.02) | 17.70 (0.02) | |||||||||||
G magnitude | 17.09 (0.005) | 17.11 | 17.09 | 17.09 (0.003) | 17.11 | ||||||||
BP magnitude | 17.07 (0.005) | 17.06 | 17.06 | ||||||||||
RP magnitude | 17.17 (0.008) | 17.13 | 17.13 | ||||||||||
Pan g magnitude | 17.00 (0.005) | ||||||||||||
Pan r magnitude | 17.20 (0.004) | ||||||||||||
Pan i magnitude | 17.46 (0.002) | ||||||||||||
Pan z magnitude | 17.69 (0.01) | ||||||||||||
Pan y magnitude | 17.84 (0.01) | ||||||||||||
E(B-V) | 0.005 |
* 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.