All names: SDSS J083012.27+414000.6, WDJ083012.28+414000.77, Gaia EDR3 915116621490557440, Gaia DR3 915116621490557440, KUV 08268+4150, GALEX J083012.3+414000, SDSS J083012.27+414000.7, Gaia DR2 915116621490557440, J0830+4139, WD 0826+418
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 30 12.28 (0.07) | 08 30 12.28 (0.08) | 08 30 12.28 | 08 30 12.28 (0.07) | 08 30 12.28 | 08 30 12.29 | ||||||
Declination | 41 39 59.34 (0.04) | 41 39 59.38 (0.05) | 41 39 59.34 | 41 40 00.77 (0.04) | 41 39 59.38 | 41 40 01.20 | ||||||
Spectral type | DA | DA | DA | DA | DA4.8 | DA | ||||||
Effective temperature | [K] | 10012.0 (70) | 9940.0 | 10390.0 (159) | 9964.0 (119) | |||||||
log(g) | [cgs] | 8.02 (0.01) | 8.00 | 8.19 (0.07) | 8.00 (0.02) | |||||||
Mass | [M☉] | 0.609 (0.01) | 0.603 | 0.72 (0.04) | 0.602 (0.02) | |||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.6400 | 0.6164 | |||||||||
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] | 10.14 (0.09) | 10.23 (0.1) | 10.23 (0.1) | 10.14 | 10.14 (0.09) | 10.23 (0.1) | |||||
Distance | [pc] | 98.58 (0.9) | 97.75 (1) | 97.71 (1) | 77.00 | 98.58 | 98.58 (0.9) | 97.71 (1) | ||||
Composition | H | H | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 2.247626051 (0.1) | 2.410302559 (0.2) | 2.248 (0.1) | 2.410302559 | |||||||
Proper motion (declination) | [mas/yr] | -89.06854811 (0.08) | -89.0611133 (0.1) | -89.069 (0.08) | -89.0611133 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | 17.00 | |||||||||||
V magnitude | 16.80 | |||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | 17.06 (0.02) | |||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 17.54 (0.009) | 17.51 (0.009) | 17.57 (0.01) | |||||||||
g magnitude | 17.12 (0.005) | 17.14 (0.004) | ||||||||||
r magnitude | 17.23 (0.009) | 17.22 (0.005) | ||||||||||
i magnitude | 17.32 (0.006) | 17.35 (0.006) | ||||||||||
z magnitude | 17.52 (0.01) | 17.52 (0.01) | ||||||||||
G magnitude | 17.14 (0.009) | 17.16 | 17.14 | 17.14 (0.003) | 17.16 | |||||||
BP magnitude | 17.20 (0.009) | 17.20 | 17.20 | |||||||||
RP magnitude | 17.07 (0.006) | 17.07 | 17.07 | |||||||||
Pan g magnitude | 17.15 (0.006) | 17.15 (0.007) | ||||||||||
Pan r magnitude | 17.23 (0.003) | 17.23 (0.003) | ||||||||||
Pan i magnitude | 17.36 (0.004) | 17.36 (0.003) | ||||||||||
Pan z magnitude | 17.53 (0.006) | 17.53 (0.005) | ||||||||||
Pan y magnitude | 17.65 (0.02) | 17.65 (0.02) | ||||||||||
E(B-V) | 0.003 |
* 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.