All names: Gaia DR2 920621124593362816, Gaia EDR3 920621124593362816, SDSS J075540.94+400918.0, GALEX J075540.9+400918, WD 0752+402, Gaia DR3 920621124593362816, KUV 07523+4017, SDSS J075540.94+400917.9, SDSS J075540.93+400917.9
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Hugelmeyer et al. 2006 | Werner & Herwig 2006 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 55 40.93 (0.1) | 07 55 40.94 | 07 55 40.93 (0.1) | 07 55 40.94 (0.1) | 07 55 40.94 | 07 55 39.38 | 07 55 40.94 | |||||||
Declination | 40 09 17.88 (0.08) | 40 09 17.94 | 40 09 17.88 (0.1) | 40 09 17.91 (0.08) | 40 09 18.00 | 40 09 14.04 | 40 09 17.97 | |||||||
Spectral type | DOZ | PG1159 | PG1159 | PG1159 | PG1159 | PG1159 | PG1159 | DO | ||||||
Effective temperature | [K] | 92873.0 (10405) | 100000.0 (2600) | 100000.0 | 100000.0 (794) | 100000.0 (794) | ||||||||
log(g) | [cgs] | 7.49 (0.3) | 7.60 (0.05) | 7.60 | 5.00 (0.003) | 5.01 (0.01) | ||||||||
Mass | [M☉] | 0.54 (0.1) | 0.62 | |||||||||||
log(Luminosity) | [L☉] | 1.50 (0.3) | ||||||||||||
Cooling age | [Gyr] | 0.0001 | ||||||||||||
log(H/He) | ||||||||||||||
log(C/He) | -1.5228787453 (-2) | -1.0457574906 | ||||||||||||
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] | 0.95 (0.1) | 1.09 (0.2) | 0.95 (0.1) | ||||||||||
Distance | [pc] | 1051.68 (141) | 920.78 (163) | 1051.64 (141) | ||||||||||
Composition | He | |||||||||||||
Proper motion (right ascension) | [mas/yr] | -10.23421857 (0.1) | -9.983331129 (0.3) | -10.234 (0.1) | 3.3 | |||||||||
Proper motion (declination) | [mas/yr] | -1.968289581 (0.1) | -1.860735931 (0.2) | -1.968 (0.1) | 1.1 | |||||||||
Variability | NOV | |||||||||||||
Magnetic | yes | |||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | 17.00 | |||||||||||||
V magnitude | 17.53 | |||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | ||||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 16.99 (0.007) | 16.99 (0.007) | 17.01 (0.02) | 17.01 | 17.00 (0.02) | |||||||||
g magnitude | 17.47 (0.005) | 17.47 (0.005) | 17.49 (0.02) | 17.49 | 17.49 (0.02) | |||||||||
r magnitude | 18.05 (0.007) | 18.05 (0.007) | 18.06 (0.02) | 18.06 | 18.05 (0.02) | |||||||||
i magnitude | 18.41 (0.01) | 18.41 (0.01) | 18.42 (0.02) | 18.43 | 18.42 (0.02) | |||||||||
z magnitude | 18.75 (0.03) | 18.75 (0.03) | 18.77 (0.04) | 18.78 | 18.75 (0.04) | |||||||||
G magnitude | 17.80 (0.01) | 17.83 | 17.80 (0.004) | |||||||||||
BP magnitude | 17.63 (0.01) | 17.53 | ||||||||||||
RP magnitude | 18.13 (0.03) | 18.14 | ||||||||||||
Pan g magnitude | 17.63 (0.006) | |||||||||||||
Pan r magnitude | 18.09 (0.003) | |||||||||||||
Pan i magnitude | 18.46 (0.004) | |||||||||||||
Pan z magnitude | 18.74 (0.02) | |||||||||||||
Pan y magnitude | 19.01 (0.05) | |||||||||||||
E(B-V) | 0.039 |
* 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.