SDSS J095722.54+051553.1

All names: Gaia DR3 3850056169293341824, Gaia DR2 3850056169293341824, WDJ095722.56+051553.17, GALEX J095722.5+051553, SDSS J095722.54+051553.1, WD 0954+055, SDSS J095722.55+051553.1, Gaia EDR3 3850056169293341824, J0957+0515

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 57 22.48 (0.1) 09 57 22.55 09 57 22.48 (0.2) 09 57 22.48 09 57 22.56 (0.1) 09 57 22.48 09 57 22.55 09 57 21.98 09 57 22.55
Declination 05 15 52.70 (0.09) 05 15 53.13 05 15 52.72 (0.1) 05 15 52.70 05 15 53.18 (0.09) 05 15 52.72 05 15 53.15 05 15 46.80 05 15 53.14
Spectral type DC DC DC DC DC: DC+M DC DC DC DCM: DC
Effective temperature [K] 6954.0 (55) 6936.0 (45) 7600.0 7311.0 6885.0 (137) 10080.0 (6) 10090.0 (22)
log(g) [cgs] 7.89 (0.02) 7.86 (0.02) 8.17 8.06 7.89 (0.04) 7.59 (0.4) 9.72 (0.3)
Mass [M] 0.512 (0.01) 0.495 (0.02) 0.697 0.612 0.51 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.3900 1.5770 1.5220
log(H/He) -3.4 -3.4
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] 13.39 (0.1) 13.23 (0.2) 13.23 (0.2) 13.39 13.39 (0.1) 13.23 (0.2)
Distance [pc] 74.66 (0.8) 75.59 (1) 75.56 (1) 74.66 74.66 (0.8) 75.56 (1)
Composition He
Proper motion (right ascension) [mas/yr] -73.78080051 (0.2) -73.62357855 (0.3) -73.781 (0.2) -73.624 -71.9
Proper motion (declination) [mas/yr] -29.89793867 (0.1) -29.48512916 (0.2) -29.898 (0.1) -29.485 -32.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.22 (0.02)
H magnitude 17.22 (0.04)
K magnitude 17.08 (0.06)
u magnitude 18.42 (0.01) 18.42 (0.02) 18.42 (0.01) 18.42 (0.01) 18.44 (0.03) 18.41 (0.03)
g magnitude 17.90 (0.006) 17.90 (0.006) 17.90 (0.006) 17.93 (0.02) 17.93 (0.02)
r magnitude 17.81 (0.006) 17.81 (0.006) 17.81 (0.006) 17.82 (0.02) 17.82 (0.02)
i magnitude 17.79 (0.007) 17.79 (0.007) 17.79 (0.007) 17.80 (0.02) 17.80 (0.02)
z magnitude 17.85 (0.02) 17.85 (0.02) 17.85 (0.02) 17.84 (0.02) 17.85 (0.02)
G magnitude 17.75 (0.01) 17.77 17.75 17.75 (0.003) 17.77
BP magnitude 17.92 (0.01) 17.92 17.92
RP magnitude 17.46 (0.01) 17.44 17.44
Pan g magnitude 17.91 (0.006) 17.91 (0.006)
Pan r magnitude 17.79 (0.003) 17.79 (0.003)
Pan i magnitude 17.80 (0.006) 17.80 (0.007)
Pan z magnitude 17.86 (0.006) 17.86 (0.008)
Pan y magnitude 17.97 (0.01) 17.97 (0.01)
E(B-V) 0.002

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.