All names: SDSS J012824.93-082254.8, Gaia DR3 2477317211979980544, WT 1189, SDSS J012824.93-082254.0, J0128-0822, Gaia EDR3 2477317211979980544, SDSS J012824.93-082254.1, Gaia DR2 2477317211979980544
Parameter | Unit | Gaia EDR3 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 01 28 24.87 (0.2) | 01 28 24.93 | 01 28 24.87 (0.5) | 01 28 24.94 (0.2) | 01 28 24.93 | ||||||
Declination | -08 22 56.19 (0.2) | -08 22 54.80 | -08 22 56.10 (0.4) | -08 22 53.44 (0.2) | -08 22 54.07 | ||||||
Spectral type | DA | DA | DA | DA | DA | DA | |||||
Effective temperature | [K] | 6926.0 (114) | 6747.0 (154) | 6552.0 | 6653.0 (31) | ||||||
log(g) | [cgs] | 8.00 (0.04) | 8.18 (0.06) | 7.83 | 7.83 (0.07) | ||||||
Mass | [M☉] | 0.593 (0.04) | 0.704 (0.06) | 0.497 | 0.503 (0.04) | ||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 2.4000 | 1.4240 | ||||||||
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] | 10.75 (0.3) | 12.56 (0.6) | 12.56 (0.6) | 10.75 (0.3) | ||||||
Distance | [pc] | 93.06 (2) | 79.62 (4) | 79.64 (4) | 93.06 (2) | ||||||
Composition | H | H | H | ||||||||
Proper motion (right ascension) | [mas/yr] | -62.27640627 (0.3) | -61.87435456 (1) | -62.276 (0.3) | |||||||
Proper motion (declination) | [mas/yr] | -171.7369272 (0.2) | -172.4330662 (0.7) | -171.737 (0.2) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 18.00 | ||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | 17.44 (0.02) | ||||||||||
H magnitude | |||||||||||
K magnitude | 17.27 (0.09) | ||||||||||
u magnitude | 18.84 (0.03) | 18.84 (0.03) | 19.06 (0.04) | 19.06 (0.04) | |||||||
g magnitude | 18.20 (0.007) | 18.48 (0.01) | 18.48 (0.01) | ||||||||
r magnitude | 17.96 (0.007) | 18.26 (0.01) | 18.26 (0.01) | ||||||||
i magnitude | 17.93 (0.009) | 18.19 (0.01) | 18.19 (0.01) | ||||||||
z magnitude | 17.91 (0.03) | 18.18 (0.02) | 18.18 (0.02) | ||||||||
G magnitude | 18.61 (0.04) | 18.62 | 18.61 (0.005) | ||||||||
BP magnitude | 18.35 (0.04) | 18.40 | |||||||||
RP magnitude | 17.88 (0.05) | 17.88 | |||||||||
Pan g magnitude | 18.56 (0.02) | ||||||||||
Pan r magnitude | 18.29 (0.02) | ||||||||||
Pan i magnitude | 18.36 (0.04) | ||||||||||
Pan z magnitude | 18.30 (0.02) | ||||||||||
Pan y magnitude | 18.41 (0.04) | ||||||||||
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.