2QZ J121830.6+004216

All names: SDSS J121830.68+004216.3, EQ J1218+0042, Gaia DR2 3698504571761639808, USNO-A2.0 0900-07120469, Gaia EDR3 3698504571761639808, GALEX J121830.7+004216, 2QZ J121830.6+004216, SDSS J121830.68+004216.2, WD 1215+009, SDSS J121830.68+004216.1, Gaia DR3 3698504571761639808

Parameter Unit Gaia EDR3 Stilism Simbad
Right ascension 12 18 30.65 (0.2) 12 18 30.68 (0.2)
Declination 00 42 15.60 (0.1) 00 42 16.10 (0.1)
Spectral type DA
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.15 (0.2) 4.15 (0.2)
Distance [pc] 240.78 (1e+01) 240.78 (1e+01)
Composition
Proper motion (right ascension) [mas/yr] -25.569 (0.2) -25.569 (0.2)
Proper motion (declination) [mas/yr] -31.045 (0.1) -31.045 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00 (0.3)
V magnitude
R magnitude 18.60 (0.3)
I magnitude
J magnitude 18.90 (0.2)
H magnitude 18.10 (0.1)
K magnitude
u magnitude 18.94 (0.02)
g magnitude 18.48 (0.007)
r magnitude 18.60 (0.009)
i magnitude 18.75 (0.01)
z magnitude 18.95 (0.04)
G magnitude 18.53 (0.003) 18.53 (0.003)
BP magnitude 18.54 (0.02)
RP magnitude 18.51 (0.05)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.022

* 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.