SDSS J122953.17+512925.2

All names: SDSS J122953.16+512925.1, GALEX J122953.1+512924, WD 1227+517, Gaia EDR3 1568771851797540736, SDSS J122953.14+512925.1, J1229+5129, Gaia DR2 1568771851797540736, Gaia DR3 1568771851797540736, SDSS J122953.17+512925.1, SDSS J122953.17+512925.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 29 53.14 (0.1) 12 29 53.17 12 29 53.18 12 29 53.14 (0.2) 12 29 53.14 12 29 53.18 (0.1) 12 29 53.17 12 29 53.23 12 29 53.17
Declination 51 29 25.06 (0.2) 51 29 25.18 51 29 25.21 51 29 25.06 (0.2) 51 29 25.06 51 29 25.21 (0.2) 51 29 25.27 51 29 20.04 51 29 25.25
Spectral type DZ DZ DZ DZ DZ DZ DZ DZ
Effective temperature [K] 9660.0 (388) 9230.0 (250) 9641.0 (442) 10353.0 (208) 10334.0 (189)
log(g) [cgs] 8.06 8.00 8.05 (0.08) 8.02 (0.6) 9.20 (0.6)
Mass [M] 0.6185 0.609 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.7490
log(H/He) <-5.8498 <-4.0
log(C/He)
log(Ca/He) -9.571 (0.1) -9.6 (0.2)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 4.63 (0.2) 4.39 4.39 (0.3) 4.63 4.63 (0.2)
Distance [pc] 215.91 (11) 227.60 (15) 227.60 (15) 218.00 215.91 215.91 (11)
Composition He He
Proper motion (right ascension) [mas/yr] -23.11877304 (0.2) -23.38277449 (0.4) -23.119 (0.2) -24.1
Proper motion (declination) [mas/yr] -9.70185574 (0.2) -9.827020985 (0.4) -9.702 (0.2) -5.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.46 (0.03) 19.45 (0.03) 19.43 (0.04) 19.43 19.43 (0.04)
g magnitude 19.25 (0.01) 19.25 (0.01) 19.24 (0.02) 19.24 19.24 (0.02)
r magnitude 19.33 (0.01) 19.33 (0.01) 19.34 (0.02) 19.33 19.34 (0.02)
i magnitude 19.43 (0.02) 19.43 (0.02) 19.46 (0.03) 19.45 19.46 (0.03)
z magnitude 19.77 (0.1) 19.77 (0.1) 19.75 (0.1) 19.74 19.75 (0.1)
G magnitude 19.26 (0.02) 19.31 19.26 19.26 (0.004)
BP magnitude 19.34 (0.02) 19.21
RP magnitude 19.22 (0.04) 19.10
Pan g magnitude 19.31 (0.01)
Pan r magnitude 19.35 (0.02)
Pan i magnitude 19.50 (0.008)
Pan z magnitude 19.61 (0.02)
Pan y magnitude 19.67 (0.08)
E(B-V) 0.014

* 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.