All names: UCAC4 526-006804, SDSS J034410.90+151022.1, WDS J03442+1510A, SDSS J034410.91+151022.1, GALEX J034410.8+151022, Gaia EDR3 42871268333859584, ** SLN 61A, WDJ034410.9+151022.33, TIC 434136183, Gaia DR3 42871268333859584, J0344+1510, Gaia DR2 42871268333859584, WDJ034410.90+151022.33, 2MASS J03441088+1510226
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 03 44 10.93 (0.05) | 03 44 10.93 | 03 44 10.93 | 03 44 10.90 (0.05) | 03 44 10.93 | |||||||
Declination | 15 10 21.67 (0.04) | 15 10 21.69 | 15 10 21.67 | 15 10 22.34 (0.04) | 15 10 21.69 | |||||||
Spectral type | DC | DC | DA | DC | ||||||||
Effective temperature | [K] | 7635.0 (34) | 7591.0 (26) | 8380.0 | 8133.0 | 8433.0 (81) | ||||||
log(g) | [cgs] | 7.66 (0.008) | 7.65 (0.008) | 8.00 | 7.91 | 8.00 (0.02) | ||||||
Mass | [M☉] | 0.396 (0.006) | 0.393 (0.006) | 0.596 | 0.524 | 0.597 (0.01) | ||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.8600 | 0.9511 | 0.9473 | ||||||||
log(H/He) | -3.6 | -3.6 | ||||||||||
log(C/He) | ||||||||||||
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] | 18.37 (0.06) | 18.42 (0.08) | 18.42 (0.08) | 18.37 | 18.37 (0.06) | 18.42 (0.08) | |||||
Distance | [pc] | 54.45 (0.2) | 54.29 (0.2) | 54.29 (0.2) | 54.45 | 54.45 (0.2) | 54.29 (0.2) | |||||
Composition | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | 23.02743752 (0.07) | 23.2159928 (0.2) | 23.027 (0.07) | 23.2159928 | |||||||
Proper motion (declination) | [mas/yr] | -41.71489761 (0.05) | -41.47508266 (0.1) | -41.715 (0.05) | -41.47508266 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | 16.71 (0.06) | |||||||||||
V magnitude | 16.52 (0.1) | |||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | 16.10 (0.01) | 16.03 (0.09) | ||||||||||
H magnitude | 16.18 (0.2) | 16.18 (0.2) | ||||||||||
K magnitude | ||||||||||||
u magnitude | 16.97 (0.007) | 16.97 (0.007) | 16.97 (0.007) | |||||||||
g magnitude | 16.52 (0.004) | 16.52 (0.004) | ||||||||||
r magnitude | 16.50 (0.004) | 16.50 (0.004) | ||||||||||
i magnitude | 16.54 (0.005) | 16.54 (0.005) | ||||||||||
z magnitude | 16.65 (0.009) | 16.65 (0.009) | ||||||||||
G magnitude | 16.45 (0.005) | 16.47 | 16.45 | 16.45 (0.003) | 16.47 | |||||||
BP magnitude | 16.57 (0.005) | 16.56 | 16.56 | |||||||||
RP magnitude | 16.23 (0.008) | 16.24 | 16.24 | |||||||||
Pan g magnitude | 16.53 (0.004) | 16.53 (0.003) | ||||||||||
Pan r magnitude | 16.52 (0.003) | 16.52 (0.002) | ||||||||||
Pan i magnitude | 16.57 (0.003) | 16.57 (0.003) | ||||||||||
Pan z magnitude | 16.67 (0.003) | 16.67 (0.004) | ||||||||||
Pan y magnitude | 16.75 (0.005) | 16.75 (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.