SDSS J232024.36+243907.8

All names: SDSS J232024.36+243907.8, Gaia EDR3 2840974150222313600, Gaia DR2 2840974150222313600, Gaia DR3 2840974150222313600, SDSS J232024.36+243907.88

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 23 20 24.35 (0.2) 23 20 24.36 23 20 24.35 (0.2) 23 20 24.35 (0.2)
Declination 24 39 07.83 (0.1) 24 39 07.89 24 39 07.83 (0.2) 24 39 07.87 (0.1)
Spectral type sdA sdA
Effective temperature [K] 8196.0 (58)
log(g) [cgs] 5.82 (0.2)
Mass [M☉] 0.17134 (0.0003)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.42 (0.2) -0.74 (0.3)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 0.158968301 (0.2) 0.455710129 (0.5) 0.159 (0.2)
Proper motion (declination) [mas/yr] -2.890688326 (0.2) -2.991555843 (0.3) -2.891 (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 20.24 (0.05) 20.24 (0.05) 20.24 (0.05)
g magnitude 19.00 (0.009) 19.00 (0.01) 19.00 (0.01)
r magnitude 18.93 (0.01) 18.95 (0.02) 18.95 (0.02)
i magnitude 18.92 (0.01) 18.93 (0.02) 18.93 (0.02)
z magnitude 18.95 (0.04) 18.96 (0.04) 18.96 (0.04)
G magnitude 18.89 (0.02) 18.92 18.89 (0.003)
BP magnitude 19.12 (0.02) 19.07
RP magnitude 18.64 (0.02) 18.61
Pan g magnitude 19.01 (0.007)
Pan r magnitude 18.92 (0.009)
Pan i magnitude 18.92 (0.007)
Pan z magnitude 19.03 (0.02)
Pan y magnitude 18.95 (0.04)
E(B-V)

* 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.