LSPM J1311+3837S

All names: SDSS J131124.26+383718.6, Gaia EDR3 1523116177642231808, WDJ131124.29+383719.08, Gaia DR3 1523116177642231808, SDSS J131124.25+383718.6, J1311+3837, LSPM J1311+3837S, SDSS J131124.26+383718.67, USNO-B1.0 1286-00225500, SDSS J131124.26+383718.7, Gaia DR2 1523116177642231808

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 13 11 24.16 (0.1) 13 11 24.26 13 11 24.16 (0.1) 13 11 24.16 13 11 24.29 (0.1) 13 11 24.16
Declination 38 37 16.72 (0.09) 38 37 18.65 38 37 16.79 (0.1) 38 37 16.72 38 37 19.08 (0.09) 38 37 16.79
Spectral type DC DC DC DC DC DC DC DC
Effective temperature [K] 6311.0 (54) 6304.0 (48) 6805.0 6549.0 6325.0 (1000) 6172.0 (154)
log(g) [cgs] 8.07 (0.02) 8.06 (0.02) 8.32 8.21 9.00 (0.5) 8.10 (0.04)
Mass [M] 0.614 (0.02) 0.612 (0.02) 0.794 0.705 0.631 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.3700 3.2000 2.9860
log(H/He) -3.2 -3.2
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] 12.81 (0.1) 12.86 (0.2) 12.86 (0.2) 12.81 12.81 (0.1) 12.86 (0.2)
Distance [pc] 78.08 (0.9) 77.76 (1) 77.77 (1) 78.08 78.08 (0.9) 77.77 (1)
Composition He
Proper motion (right ascension) [mas/yr] -95.57091201 (0.1) -95.28735598 (0.3) -95.571 (0.1) -95.28735598
Proper motion (declination) [mas/yr] -147.5800876 (0.1) -147.3571711 (0.2) -147.58 (0.1) -147.3571711
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.30
V magnitude
R magnitude 18.40
I magnitude
J magnitude 17.78 (0.04)
H magnitude
K magnitude
u magnitude 19.32 (0.03) 19.31 (0.03) 19.32 (0.03) 19.32 (0.03) 19.32 (0.03)
g magnitude 18.63 (0.008) 18.63 (0.01) 18.63 (0.008) 18.63 (0.008)
r magnitude 18.43 (0.008) 18.43 (0.01) 18.43 (0.008) 18.43 (0.008)
i magnitude 18.46 (0.01) 18.46 (0.01) 18.46 (0.01) 18.46 (0.01)
z magnitude 18.41 (0.03) 18.41 (0.03) 18.41 (0.03) 18.41 (0.03)
G magnitude 18.45 (0.02) 18.47 18.45 18.45 (0.003) 18.47
BP magnitude 18.67 (0.02) 18.66 18.66
RP magnitude 18.10 (0.02) 18.11 18.11
Pan g magnitude 18.67 (0.009) 18.67 (0.01)
Pan r magnitude 18.46 (0.009) 18.46 (0.007)
Pan i magnitude 18.43 (0.006) 18.43 (0.006)
Pan z magnitude 18.47 (0.006) 18.47 (0.006)
Pan y magnitude 18.49 (0.02) 18.49 (0.02)
E(B-V) 0.004

* 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.