All names: SDSS J114055.95+301828.0, GALEX J114055.9+301828, Gaia DR3 4020986418745699328, LAMOST J114055.94+301828.0, Gaia DR2 4020986418745699328, [HHD2009] SDSS J1140+3018, US 2790, WIRED J114055.94+301828.0, SDSS J114055.94+301827.9, WD 1138+305, Gaia EDR3 4020986418745699328
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 11 40 55.91 (0.1) | 11 40 55.95 | 11 40 55.91 (0.3) | 11 40 55.91 | 11 40 55.96 (0.1) | 11 40 55.25 | 11 40 55.95 | |||||
Declination | 30 18 28.03 (0.2) | 30 18 27.96 | 30 18 28.02 (0.3) | 30 18 28.03 | 30 18 27.95 (0.2) | 30 18 21.96 | 30 18 28.02 | |||||
Spectral type | DA+M | DA | DA+M | DA3.2 | DA+M | DA | ||||||
Effective temperature | [K] | 10101.0 | 8856.0 (220) | 11801.0 (210) | ||||||||
log(g) | [cgs] | 6.97 | 6.94 (0.07) | 8.07 (0.07) | ||||||||
Mass | [M☉] | 0.215 | 0.198 (0.02) | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | |||||||||||
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] | 3.72 (0.2) | 2.98 (0.3) | 3.72 | 3.72 (0.2) | |||||||
Distance | [pc] | 268.52 (14) | 335.32 (34) | 268.52 | 268.52 (14) | |||||||
Composition | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -40.57772571 (0.2) | -39.98891523 (0.6) | -40.578 (0.2) | ||||||||
Proper motion (declination) | [mas/yr] | 4.403221649 (0.2) | 4.546622746 (0.5) | 4.403 (0.2) | ||||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | yes | WDMS | ||||||||||
B magnitude | 18.50 | |||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 18.61 (0.02) | 18.61 (0.02) | 18.63 | 18.65 (0.02) | ||||||||
g magnitude | 18.20 (0.006) | 18.20 (0.006) | 18.23 | 18.23 (0.02) | ||||||||
r magnitude | 18.41 (0.008) | 18.41 (0.008) | 18.47 | 18.47 (0.02) | ||||||||
i magnitude | 18.45 (0.01) | 18.45 (0.01) | 18.52 | 18.53 (0.02) | ||||||||
z magnitude | 18.31 (0.02) | 18.31 (0.02) | 18.39 | 18.39 (0.03) | ||||||||
G magnitude | 18.31 (0.01) | 18.33 | 18.31 | 18.31 (0.004) | ||||||||
BP magnitude | 18.32 (0.01) | 18.28 | ||||||||||
RP magnitude | 18.10 (0.02) | 18.10 | ||||||||||
Pan g magnitude | 18.23 (0.006) | |||||||||||
Pan r magnitude | 18.42 (0.007) | |||||||||||
Pan i magnitude | 18.54 (0.01) | |||||||||||
Pan z magnitude | 18.44 (0.01) | |||||||||||
Pan y magnitude | 18.31 (0.02) | |||||||||||
E(B-V) | 0.019 |
* 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.