All names: SDSS J153243.73+350052.9, SDSS J153243.73+350052.90, SDSS J153243.72+350052.9, USNO-A2.0 1200-07580394, GALEX 2679969445693097883, Gaia EDR3 1374105757641298304, Gaia DR3 1374105757641298304, Gaia DR2 1374105757641298304
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 15 32 43.70 (0.1) | 15 32 43.73 | 15 32 43.70 (0.2) | 15 32 43.70 | 15 32 43.74 (0.2) | 15 32 43.73 | ||||||
Declination | 35 00 53.49 (0.2) | 35 00 52.95 | 35 00 53.47 (0.2) | 35 00 53.49 | 35 00 52.73 (0.2) | 35 00 52.93 | ||||||
Spectral type | DB | DB | DB | DB | DB+MS | |||||||
Effective temperature | [K] | 11645.0 | 11076.0 | 11454.0 (549) | 12350.0 (287) | |||||||
log(g) | [cgs] | 7.20 | 7.95 | 7.90 (0.09) | 8.09 (0.3) | |||||||
Mass | [M☉] | 0.253 | 0.551 | 0.526 (0.07) | 0.631 (0.1) | |||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.4411 | ||||||||||
log(H/He) | <-6.2 | |||||||||||
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] | 3.55 (0.2) | 3.69 (0.2) | 3.55 | 3.69 (0.2) | |||||||
Distance | [pc] | 281.64 (15) | 271.13 (16) | 281.64 | 271.13 (16) | |||||||
Composition | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | -24.41154969 (0.2) | -24.54059605 (0.4) | -24.541 (0.4) | ||||||||
Proper motion (declination) | [mas/yr] | 47.76165738 (0.2) | 47.66568921 (0.5) | 47.666 (0.5) | ||||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | WDMS | |||||||||||
B magnitude | 18.40 (0.3) | |||||||||||
V magnitude | ||||||||||||
R magnitude | 18.80 (0.3) | |||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 19.00 (0.02) | 19.00 (0.02) | 19.02 (0.02) | |||||||||
g magnitude | 18.99 (0.009) | 18.99 (0.009) | 19.00 (0.02) | |||||||||
r magnitude | 19.22 (0.01) | 19.22 (0.01) | 19.23 (0.02) | |||||||||
i magnitude | 19.35 (0.02) | 19.35 (0.02) | 19.35 (0.02) | |||||||||
z magnitude | 19.58 (0.06) | 19.58 (0.06) | 19.57 (0.06) | |||||||||
G magnitude | 19.07 (0.03) | 19.11 | 19.07 | 19.11 (0.003) | ||||||||
BP magnitude | 19.07 (0.03) | 19.03 | ||||||||||
RP magnitude | 19.00 (0.04) | 18.96 | ||||||||||
Pan g magnitude | 19.04 (0.009) | |||||||||||
Pan r magnitude | 19.19 (0.01) | |||||||||||
Pan i magnitude | 19.39 (0.01) | |||||||||||
Pan z magnitude | 19.57 (0.01) | |||||||||||
Pan y magnitude | 19.58 (0.03) | |||||||||||
E(B-V) | 0.024 |
* 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.