All names: SDSS J235804.81-035340.87, Gaia EDR3 2448000070160180352, SDSS J235804.80-035340.8, SDSS J235804.81-035340.9, Gaia DR3 2448000070160180352, Gaia DR2 2448000070160180352, GALEX J235804.8-035341, SDSS J235804.81-035340.8
Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 58 04.81 (0.7) | 23 58 04.81 | 23 58 04.81 (0.8) | 23 58 04.82 (0.7) | |||||
Declination | -03 53 41.23 (0.5) | -03 53 40.91 | -03 53 41.21 (0.8) | -03 53 40.73 (0.5) | |||||
Spectral type | DA | DA | DA | DA | |||||
Effective temperature | [K] | 9236.0 | 7950.0 (117) | ||||||
log(g) | [cgs] | 8.03 | 8.16 (0.2) | ||||||
Mass | [M☉] | 0.619 | 0.601 (0.09) | ||||||
log(Luminosity) | [L☉] | ||||||||
Cooling age | [Gyr] | 0.7786 | |||||||
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] | 3.89 (1) | 2.77 (1) | 3.89 (1) | |||||
Distance | [pc] | 256.79 (65) | 361.43 (132) | 256.79 (65) | |||||
Composition | H | ||||||||
Proper motion (right ascension) | [mas/yr] | -9.878847702 (0.7) | -8.579399961 (2) | -9.879 (0.7) | |||||
Proper motion (declination) | [mas/yr] | -31.49586228 (0.6) | -28.68355822 (2) | -31.496 (0.6) | |||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | |||||||||
V magnitude | |||||||||
R magnitude | |||||||||
I magnitude | |||||||||
J magnitude | |||||||||
H magnitude | |||||||||
K magnitude | |||||||||
u magnitude | 20.86 (0.09) | 20.86 (0.08) | 20.86 (0.08) | ||||||
g magnitude | 20.41 (0.03) | 20.40 (0.03) | 20.41 (0.03) | ||||||
r magnitude | 20.25 (0.03) | 20.23 (0.04) | 20.25 (0.03) | ||||||
i magnitude | 20.25 (0.04) | 20.24 (0.05) | 20.25 (0.04) | ||||||
z magnitude | 20.77 (0.2) | 20.72 (0.3) | 20.77 (0.2) | ||||||
G magnitude | 20.21 (0.1) | 20.26 | 20.21 (0.006) | ||||||
BP magnitude | 20.48 (0.1) | 20.30 | |||||||
RP magnitude | 20.01 (0.09) | 19.75 | |||||||
Pan g magnitude | |||||||||
Pan r magnitude | |||||||||
Pan i magnitude | |||||||||
Pan z magnitude | |||||||||
Pan y magnitude | |||||||||
E(B-V) | 0.018 |
* 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.