SDSS J164039.89+213332.0

All names: Gaia DR3 4564369020859148672, Gaia DR2 4564369020859148672, SDSS J164039.89+213332.0, Gaia EDR3 4564369020859148672, SDSS J164039.88+213332.0, SDSS J164039.89+213332.08

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Gaia DR2 Kepler et al. 2015 Simbad
Right ascension 16 40 39.89 (2) 16 40 39.88 16 40 39.89 (3) 16 40 39.89 (2)
Declination 21 33 31.78 (2) 21 33 32.07 21 33 31.79 (2) 21 33 31.78 (2)
Spectral type DA DA
Effective temperature [K] 10059.0 (186)
log(g) [cgs] 8.67 (0.2)
Mass [M☉] 1.0 (0.09)
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]
Proper motion (declination) [mas/yr]
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.69 (0.1) 21.67 (0.1) 21.67 (0.1)
g magnitude 21.10 (0.03) 21.11 (0.03) 21.10 (0.03)
r magnitude 21.10 (0.04) 21.13 (0.04) 21.10 (0.04)
i magnitude 21.14 (0.06) 21.14 (0.06) 21.14 (0.06)
z magnitude 21.15 (0.2) 21.10 (0.2) 21.10 (0.2)
G magnitude 21.02 (0.2) 21.10 21.02 (0.02)
BP magnitude 20.74 (0.2)
RP magnitude 20.24 (0.2)
Pan g magnitude 21.12 (0.04)
Pan r magnitude 21.11 (0.1)
Pan i magnitude 21.18 (0.03)
Pan z magnitude 21.15 (0.2)
Pan y magnitude
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.