WD 1229+674

All names: PTF1 J123159.53+670918.9, GALEX J123159.4+670919, SDSS J123159.50+670918.9, Gaia DR2 1680871636389917312, WD 1229+674, Gaia EDR3 1680871636389917312, SDSS J123159.50+670919.0, Gaia DR3 1680871636389917312, SDSS J123159.54+670918.8, SDSS J123159.51+670918.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 12 31 59.54 (0.08) 12 31 59.51 12 31 59.54 (0.1) 12 31 59.50 12 31 59.51 (0.08) 12 31 59.51 12 31 58.32 12 31 59.50 12 31 59.50
Declination 67 09 18.87 (0.08) 67 09 18.91 67 09 18.87 (0.09) 67 09 19.01 67 09 18.91 (0.08) 67 09 18.91 67 09 15.12 67 09 18.96 67 09 18.97
Spectral type DA DA+M: DA+M: DA DA+M DA DA1.4 DA+M DA
Effective temperature [K] 36778.0 (716) 13077.0 35740.0 (448) 35830.0 (410) 36950.0 (271) 36000.0 (309) 37113.0 (273)
log(g) [cgs] 7.54 (0.1) 4.64 7.42 (0.08) 7.37 (0.07) 7.31 (0.05) 7.35 (0.05) 7.33 (0.05)
Mass [M] 0.46 (0.03) 0.005 0.43 (0.02) 0.42 (0.01)
log(Luminosity) [L] -0.22 (0.08)
Cooling age [Gyr] 0.0030 (0.001) 0.0112
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] 1.20 (0.1) 1.18 (0.1) 1.20 (0.1)
Distance [pc] 830.25 (66) 845.00 (86) 604.00 (70) 830.22 (66)
Composition H H H
Proper motion (right ascension) [mas/yr] 9.63727223 (0.1) 9.443045495 (0.2) 9.637 (0.1) 12.8 13.0
Proper motion (declination) [mas/yr] -2.577291719 (0.1) -2.91670758 (0.2) -2.577 (0.1) -8.3 -7.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.60 (0.01) 17.60 17.60 (0.01) 17.60 (0.02) 17.61 17.60 (0.02) 17.61 (0.02)
g magnitude 17.85 (0.006) 17.86 17.85 (0.006) 17.86 (0.01) 17.87 17.85 (0.01) 17.87 (0.01)
r magnitude 18.26 (0.008) 18.28 18.26 (0.008) 18.28 (0.01) 18.27 18.26 (0.01) 18.27 (0.01)
i magnitude 18.45 (0.01) 18.46 18.45 (0.01) 18.45 (0.02) 18.45 18.44 (0.02) 18.45 (0.02)
z magnitude 18.49 (0.03) 18.51 18.49 (0.03) 18.51 (0.04) 18.48 18.49 (0.04) 18.48 (0.04)
G magnitude 18.07 (0.01) 18.16 18.07 (0.007)
BP magnitude 18.00 (0.01) 17.95
RP magnitude 18.07 (0.04) 18.12
Pan g magnitude 18.01 (0.02)
Pan r magnitude 18.31 (0.03)
Pan i magnitude 18.35 (0.03)
Pan z magnitude 18.81 (0.03)
Pan y magnitude 18.75 (0.04)
E(B-V) 0.020

* 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.