WD 1256+049

All names: SDSS J125925.90+044209.6, J1259+0442, Gaia DR2 3705109338109763712, LSPM J1259+0442, WDJ125925.89+044209.74, Gaia DR3 3705109338109763712, USNO-B1.0 0947-00210937, WD 1256+049, Gaia EDR3 3705109338109763712, SDSS J125925.91+044209.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 59 26.10 (0.2) 12 59 26.09 (0.2) 12 59 26.10 12 59 25.89 (0.2) 12 59 26.09 12 59 25.34
Declination 04 42 08.79 (0.1) 04 42 08.82 (0.2) 04 42 08.79 04 42 09.75 (0.1) 04 42 08.82 04 42 01.80
Spectral type DC DC DC DC DC DC DC10.4
Effective temperature [K] 4751.0 (23) 4807.0 (23) 4765.0 4448.0 4748.0 (63)
log(g) [cgs] 7.93 (0.02) 8.03 (0.02) 7.98 7.75 7.93 (0.04)
Mass [M] 0.539 (0.02) 0.597 (0.02) 0.568 0.43 0.536 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 7.3200 6.5090 4.7430
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] 18.86 (0.2) 19.30 (0.3) 19.30 (0.3) 18.86 18.86 (0.2) 19.30 (0.3)
Distance [pc] 53.03 (0.6) 51.81 (0.8) 51.81 (0.8) 53.03 53.03 (0.6) 51.81 (0.8)
Composition H H
Proper motion (right ascension) [mas/yr] 194.6267271 (0.3) 194.6317198 (0.6) 194.627 (0.3) 194.6317198
Proper motion (declination) [mas/yr] -60.01723524 (0.3) -59.50031125 (0.5) -60.017 (0.3) -59.50031125
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.60
V magnitude
R magnitude 18.60
I magnitude
J magnitude 17.39 (0.06) 17.39 (0.06)
H magnitude 17.18 (0.06) 17.18 (0.06)
K magnitude 16.90 (0.1) 16.90 (0.1)
u magnitude 21.26 (0.09) 21.25 (0.09) 21.25 (0.09) 21.27
g magnitude 19.45 (0.01) 19.45 (0.01) 19.43
r magnitude 18.61 (0.009) 18.61 (0.009) 18.61
i magnitude 18.32 (0.01) 18.32 (0.01) 18.32
z magnitude 18.20 (0.03) 18.20 (0.03) 18.24
G magnitude 18.66 (0.03) 18.68 18.66 18.66 (0.003) 18.68
BP magnitude 19.17 (0.03) 19.24 19.24
RP magnitude 17.98 (0.01) 17.96 17.96
Pan g magnitude 19.31 (0.006) 19.31 (0.006)
Pan r magnitude 18.61 (0.005) 18.61 (0.006)
Pan i magnitude 18.32 (0.008) 18.32 (0.01)
Pan z magnitude 18.22 (0.009) 18.22 (0.009)
Pan y magnitude 18.16 (0.02) 18.16 (0.02)
E(B-V) 0.001

* 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.