SDSS J164054.54+233912.1

All names: Gaia EDR3 1299732149733372928, SDSS J164054.54+233912.2, GALEX J164054.5+233912, SDSS J164054.54+233912.28, SDSS J164054.54+233912.1, Gaia DR3 1299732149733372928, Gaia DR2 1299732145438872704

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Gaia DR2 Kepler et al. 2015 Simbad
Right ascension 16 40 54.54 (2) 16 40 54.54 16 40 54.54 (0.7) 16 40 54.54 (2)
Declination 23 39 12.33 (3) 23 39 12.18 23 39 12.40 (1) 23 39 12.33 (3)
Spectral type DA DA
Effective temperature [K] 14934.0 (311)
log(g) [cgs] 8.54 (0.03)
Mass [M☉] 0.934 (0.02)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas]
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -4.0 (3)
Proper motion (declination) [mas/yr] 13.0 (3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.90 (0.02) 18.90 (0.02) 18.90 (0.02)
g magnitude 18.62 (0.008) 18.65 (0.01) 18.62 (0.008)
r magnitude 18.89 (0.01) 18.91 (0.01) 18.89 (0.01)
i magnitude 19.12 (0.01) 19.15 (0.02) 19.12 (0.01)
z magnitude 19.40 (0.06) 19.42 (0.06) 19.40 (0.06)
G magnitude 19.10 (0.01) 19.03 19.10 (0.01)
BP magnitude 18.77 (0.01) 18.74
RP magnitude 18.79 (0.03) 18.76
Pan g magnitude 18.67 (0.004)
Pan r magnitude 18.89 (0.006)
Pan i magnitude 19.13 (0.02)
Pan z magnitude 19.36 (0.02)
Pan y magnitude 19.57 (0.05)
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.