SDFPM J132350.2+272744

All names: SDSS J132350.26+272744.3, SDSS J132350.28+272744.14, SDSS J132350.28+272744.1, Gaia DR2 1449461306742292608, Gaia DR3 1449461306742292608, GALEX J132350.3+272743, Gaia EDR3 1449461306742292608, SDFPM J132350.2+272744

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 13 23 50.29 (0.2) 13 23 50.27 13 23 50.29 (0.2) 13 23 50.29 13 23 50.26 (0.2)
Declination 27 27 44.06 (0.1) 27 27 44.36 27 27 44.07 (0.2) 27 27 44.06 27 27 44.57 (0.1)
Spectral type DB DB DB DB DB
Effective temperature [K] 18571.0 18035.0 17195.0 18303.0 (130) 18343.0 (115) 16210.0 (1339)
log(g) [cgs] 8.19 8.09 8.04 8.05 (0.05) 7.96 (0.04) 7.80 (0.1)
Mass [M] 0.707 0.65 0.613 0.583 (0.02) 0.484 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1345
log(H/He) -5.003 <-4.58
log(C/He)
log(Ca/He) <-5.15
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] 2.93 (0.2) 3.18 (0.3) 2.93 2.93 (0.2)
Distance [pc] 340.94 (25) 314.05 (27) 331.00 340.94 340.95 (25)
Composition He
Proper motion (right ascension) [mas/yr] 26.46822582 (0.2) 28.0932074 (0.4) 26.468 (0.2)
Proper motion (declination) [mas/yr] -31.85099754 (0.1) -31.65724757 (0.3) -31.851 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 19.05
R magnitude 19.11
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.27 (0.01) 18.28 (0.03) 18.27 (0.01)
g magnitude 18.31 (0.007) 18.33 (0.02) 18.31 (0.007)
r magnitude 18.67 (0.009) 18.69 (0.02) 18.67 (0.009)
i magnitude 18.91 (0.01) 18.93 (0.01) 18.91 (0.01)
z magnitude 19.25 (0.05) 19.26 (0.05) 19.25 (0.05)
G magnitude 18.49 (0.02) 18.53 18.49 18.49 (0.003)
BP magnitude 18.45 (0.02) 18.42
RP magnitude 18.58 (0.04) 18.62
Pan g magnitude 18.36 (0.008)
Pan r magnitude 18.66 (0.008)
Pan i magnitude 18.95 (0.007)
Pan z magnitude 19.20 (0.01)
Pan y magnitude 19.26 (0.03)
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.