V* SW LMi

All names: SDSS J095749.37+335923.3, CBS 114, GALEX J095749.4+335923, WD 0954+342, Gaia DR3 795097505615589504, V* SW LMi, 0954+342, Ton 1132, KUV 09549+3414, Gaia DR2 795097505615589504, SDSS J095749.40+335923.6, Gaia EDR3 795097505615589504, SDSS J095749.40+335923.60, SDSS J095749.39+335923.5, LAMOST J095749.39+335923.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Leggett et al. 2018 MWDD HE Gaia DR2 Stilism Guo et al. 2015 Koester & Kepler 2015 Bergeron et al. 2011 Beauchamp et al. 1999 Vincent et al. 2024 Simbad White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 57 49.35 (0.1) 09 57 49.39 09 57 49.35 (0.2) 09 57 49.35 09 57 49.41 (0.1) 09 57 49.01 09 57 49.40
Declination 33 59 23.21 (0.1) 33 59 23.59 33 59 23.23 (0.3) 33 59 23.21 33 59 23.69 (0.1) 33 59 40.20 33 59 23.60
Spectral type DB1.9 DB DB DB DB DB DB DBV DB DB DB
Effective temperature [K] 27440.0 26533.0 27023.0 (2979) 23070.0 24953.0 (338) 26050.0 (1823) 26200.0 26464.0 (1457) 23300.0 25754.0 (368)
log(g) [cgs] 7.97 8.00 8.49 (0.09) 7.94 8.01 (0.03) 7.98 (0.08) 8.00 7.97 (0.05) 7.95 (0.04)
Mass [M] 0.597 0.61 0.909 (0.07) 0.571 0.6 (0.04) 0.595 (0.04) 0.579 (0.02)
log(Luminosity) [L] -1.15
Cooling age [Gyr] 0.0720 (0.04) 0.0304 0.0204
log(H/He) <-4.22 <-3.31 <-3.99 (0.5)
log(C/He)
log(Ca/He) <-4.0
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] 3.46 (0.1) 4.83 (0.4) 3.48 (0.2) 3.46 3.46 (0.1)
Distance [pc] 289.34 (10) 207.04 (17) 287.04 (15) 277.00 232.00 289.34 289.34 (10)
Composition He He He
Proper motion (right ascension) [mas/yr] -45.09258587 (0.1) -45.07525585 (0.4) -45.093 (0.1)
Proper motion (declination) [mas/yr] -29.86378985 (0.1) -29.99084668 (0.5) -29.864 (0.1)
Variability VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude 17.20 17.00
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.32 (0.009) 17.32 (0.009) 17.32 (0.01)
g magnitude 17.50 (0.005) 17.50 (0.005) 17.52 (0.02)
r magnitude 17.89 (0.006) 17.90 (0.006) 17.89 (0.01)
i magnitude 18.19 (0.008) 18.18 (0.008) 18.20 (0.02)
z magnitude 18.48 (0.03) 18.48 (0.03) 18.49 (0.03)
G magnitude 17.71 (0.01) 17.73 17.71 17.71 (0.003)
BP magnitude 17.60 (0.01) 17.53
RP magnitude 17.87 (0.02) 17.87
Pan g magnitude 17.55 (0.02)
Pan r magnitude 17.89 (0.01)
Pan i magnitude 18.23 (0.007)
Pan z magnitude 18.47 (0.01)
Pan y magnitude 18.65 (0.01)
E(B-V) 0.016

* Constant surface field

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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.