All names: Gaia DR2 2770512570327553408, SDSS J235516.60+143136.2, Gaia DR3 2770512570328029184, Gaia EDR3 2770512570328029184, WD 2352+142, SDSS J235516.61+143136.2, GALEX J235516.6+143137, SDSS J235516.61+143136.1, J2355+1431
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Dufour et al. 2007 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 55 16.75 (0.2) | 23 55 16.60 | 23 55 16.58 | 23 55 16.74 (0.3) | 23 55 16.75 | 23 55 16.58 (0.2) | 23 55 16.60 | 23 55 16.32 | 23 55 16.61 | |||||
Declination | 14 31 35.30 (0.1) | 14 31 36.21 | 14 31 36.28 | 14 31 35.33 (0.1) | 14 31 35.30 | 14 31 36.28 (0.1) | 14 31 36.21 | 14 31 35.76 | 14 31 36.19 | |||||
Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | ||||||
Effective temperature | [K] | 6523.0 (113) | 6940.0 (110) | 6797.0 (228) | 6593.0 (60) | 6453.0 (45) | ||||||||
log(g) | [cgs] | 8.10 | 8.00 | 8.22 (0.06) | 8.97 (0.05) | 10.00 (0.007) | ||||||||
Mass | [M☉] | 0.6372 | 0.716 (0.06) | |||||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 2.3100 | ||||||||||||
log(H/He) | <-3.3219 | -3.67 (0.9) | ||||||||||||
log(C/He) | ||||||||||||||
log(Ca/He) | -10.583 (0.1) | -10.8 (0.2) | ||||||||||||
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] | 8.92 (0.3) | 8.99 | 8.99 (0.4) | 8.92 | 8.92 (0.3) | ||||||||
Distance | [pc] | 112.09 (4) | 111.29 (5) | 111.29 (5) | 129.00 | 112.09 | 112.09 (4) | |||||||
Composition | He | He | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 147.6881148 (0.3) | 147.5013187 (0.7) | 147.688 (0.3) | 151.8 | |||||||||
Proper motion (declination) | [mas/yr] | -61.27382029 (0.2) | -61.29254435 (0.3) | -61.274 (0.2) | -63.9 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | ||||||||||||||
V magnitude | ||||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | ||||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 19.84 (0.04) | 19.84 (0.04) | 19.87 (0.04) | 19.87 | 19.85 (0.04) | |||||||||
g magnitude | 19.19 (0.01) | 19.19 (0.01) | 19.22 (0.02) | 19.22 | 19.22 (0.02) | |||||||||
r magnitude | 19.06 (0.01) | 19.06 (0.01) | 19.07 (0.02) | 19.07 | 19.07 (0.02) | |||||||||
i magnitude | 19.05 (0.02) | 19.05 (0.01) | 19.07 (0.02) | 19.07 | 19.06 (0.02) | |||||||||
z magnitude | 19.05 (0.05) | 19.05 (0.05) | 19.06 (0.05) | 19.07 | 19.05 (0.05) | |||||||||
G magnitude | 19.05 (0.03) | 19.08 | 19.05 | 19.05 (0.003) | ||||||||||
BP magnitude | 19.23 (0.03) | 19.25 | ||||||||||||
RP magnitude | 18.83 (0.03) | 18.77 | ||||||||||||
Pan g magnitude | 19.20 (0.02) | |||||||||||||
Pan r magnitude | 19.10 (0.01) | |||||||||||||
Pan i magnitude | 19.08 (0.006) | |||||||||||||
Pan z magnitude | 19.17 (0.02) | |||||||||||||
Pan y magnitude | 19.29 (0.05) | |||||||||||||
E(B-V) | 0.007 |
* 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.