SDSS J231940.45+180803.3

All names: Gaia DR2 2818876547779037952, SDSS J231940.45+180803.36, Gaia DR3 2818876547779037952, SDSS J231940.45+180803.3, Gaia EDR3 2818876547779037952

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 23 19 40.45 (6) 23 19 40.45 23 19 40.45 (3) 23 19 40.45 (6)
Declination 18 08 03.41 (5) 18 08 03.36 18 08 03.42 (2) 18 08 03.41 (5)
Spectral type DA: DA
Effective temperature [K] 8639.0 (213)
log(g) [cgs] 7.82 (0.4)
Mass [M☉]
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 21.81 (0.2) 21.77 (0.2) 21.77 (0.2)
g magnitude 21.21 (0.04) 21.23 (0.04) 21.23 (0.04)
r magnitude 21.26 (0.06) 21.27 (0.06) 21.27 (0.06)
i magnitude 21.13 (0.09) 21.15 (0.09) 21.15 (0.09)
z magnitude 21.49 (0.4) 21.40 (0.4) 21.40 (0.4)
G magnitude 21.17 (0.2) 21.20 21.17 (0.04)
BP magnitude 21.11 (0.2)
RP magnitude 20.79 (0.6)
Pan g magnitude 21.15 (0.04)
Pan r magnitude 21.06 (0.03)
Pan i magnitude 21.11 (0.05)
Pan z magnitude 21.17 (0.1)
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.