SDSS J164131.03+214026.5

All names: SDSS J164131.03+214026.51, SDSSJ164131.02+214026.4, GALEX J164131.0+214026, SDSS J164131.03+214026.5, SDSS J164131.03+214026.4, Gaia DR3 4564376610065672704, Gaia EDR3 4564376610065672704, Gaia DR2 4564376610065672704

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Geier 2020 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 16 41 31.03 (0.1) 16 41 31.03 16 41 31.02 16 41 31.03 (0.2) 16 41 31.03 (0.1)
Declination 21 40 26.37 (0.1) 21 40 26.46 21 40 26.40 21 40 26.37 (0.2) 21 40 26.44 (0.1)
Spectral type sdB sdB sdB sdB sdB
Effective temperature [K] 20049.0 24016.0 32049.0 (472)
log(g) [cgs] 5.96 5.94 5.87 (0.1)
Mass [M] 0.11 0.087
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.50 (0.2) 0.46 (0.3) 0.46 (0.3) 0.50 (0.2)
Distance [pc] 1992.37 (853) 2181.03 (1369) 2180.92 (1369) 1992.43 (854)
Composition
Proper motion (right ascension) [mas/yr] -1.821815621 (0.2) -1.664 (0.4) -1.663735671 (0.4) -1.822 (0.2)
Proper motion (declination) [mas/yr] -4.449992577 (0.2) -4.837 (0.5) -4.837202301 (0.5) -4.45 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.79 (0.02) 18.79 (0.02) 18.79 (0.02) 18.79 (0.02)
g magnitude 18.98 (0.009) 18.98 (0.009) 18.98 (0.02) 18.98 (0.009)
r magnitude 19.48 (0.01) 19.48 (0.01) 19.47 (0.02) 19.48 (0.01)
i magnitude 19.76 (0.02) 19.76 (0.02) 19.76 (0.02) 19.76 (0.02)
z magnitude 20.01 (0.09) 20.01 (0.09) 20.00 (0.08) 20.01 (0.09)
G magnitude 19.24 (0.02) 19.29 (0.003) 19.29 19.24 (0.003)
BP magnitude 19.16 (0.02) 19.01 (0.03) 19.01
RP magnitude 19.51 (0.05) 19.44 (0.05) 19.44
Pan g magnitude 19.10 (0.007) 19.10 (0.007)
Pan r magnitude 19.50 (0.01) 19.50 (0.01)
Pan i magnitude 19.84 (0.007) 19.84 (0.007)
Pan z magnitude 20.03 (0.04) 20.03 (0.04)
Pan y magnitude 19.87 (0.3) 19.87 (0.3)
E(B-V) 0.041

* 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.