WD J2231+1346

All names: Gaia DR3 2731334870789219456, Gaia DR2 2731334870789219456, WD 2229+135, SDSS J223135.71+134652.8, Gaia EDR3 2731334870789219456

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Castanheira et al. 2006 Vincent et al. 2024 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 31 35.68 (0.2) 22 31 35.70 22 31 35.68 (0.3) 22 31 35.68 22 31 35.71 22 31 35.59 22 31 35.71
Declination 13 46 52.96 (0.2) 13 46 52.91 13 46 52.96 (0.3) 13 46 52.96 13 46 52.86 13 46 50.52 13 46 52.83
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 10544.0 11380.0 (150) 11060.0 11634.0 (657) 11084.0 (102) 10971.0 (91)
log(g) [cgs] 7.56 8.01 (0.07) 7.89 7.98 (0.09) 7.95 (0.07) 7.93 (0.07)
Mass [M☉] 0.383 0.61 (0.04) 0.595 (0.07) 0.566 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.3209 0.4467
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 4.29 (0.3) 3.59 (0.4) 4.29
Distance [pc] 233.34 (14) 278.39 (29) 233.34
Composition H H
Proper motion (right ascension) [mas/yr] -29.85411023 (0.3) -28.41347579 (0.5) -28.2
Proper motion (declination) [mas/yr] 7.007621634 (0.3) 7.419558624 (0.5) 5.6
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 18.70
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.05 (0.02) 19.05 (0.03) 19.05 19.05 (0.03)
g magnitude 18.57 (0.008) 18.63 (0.02) 18.63 18.63 (0.02)
r magnitude 18.73 (0.009) 18.66 (0.01) 18.66 18.65 (0.01)
i magnitude 18.89 (0.01) 18.87 (0.02) 18.87 18.85 (0.02)
z magnitude 19.10 (0.05) 19.08 (0.06) 19.08 19.07 (0.06)
G magnitude 18.61 (0.03) 18.64 18.61
BP magnitude 18.63 (0.03) 18.67
RP magnitude 18.56 (0.05) 18.65
Pan g magnitude 18.58 (0.01)
Pan r magnitude 18.71 (0.01)
Pan i magnitude 18.88 (0.007)
Pan z magnitude 19.07 (0.02)
Pan y magnitude 19.23 (0.03)
E(B-V) 0.032
Period #1 [s] 382.4
Amplitude #1 [mma] 14.6
Period #2 [s] 548.7
Amplitude #2 [mma] 13.7
Period #3 [s] 619.7
Amplitude #3 [mma] 18.9
Period #4 [s] 627.0
Amplitude #4 [mma] 26.3
Period #5 [s] 707.5
Amplitude #5 [mma] 17.1

* 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.