WD 1553+120

All names: SDSS J155611.43+115351.8, J1556+1153, Gaia EDR3 4456309700985355264, GSC2U J155611.5+115351, Gaia DR2 4456309700985355264, WDJ155611.50+115351.74, WD 1553+120, LSPM J1556+1153, USNO-B1.0 1018-00287049, Gaia DR3 4456309700985355264

Parameter Unit Gaia EDR3 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 15 56 11.28 (0.3) 15 56 11.29 (0.3) 15 56 11.28 15 56 11.51 (353) 15 56 11.29 15 56 10.66
Declination 11 53 52.15 (0.2) 11 53 52.14 (0.3) 11 53 52.15 11 53 51.52 (990) 11 53 52.14 11 53 50.28
Spectral type DC DC DC DA: DC DC
Effective temperature [K] 4847.0 (32) 4456.0 4609.0
log(g) [cgs] 7.94 (0.05) 7.48 7.60
Mass [M] 0.544 (0.04) 0.312 0.358
log(Luminosity) [L]
Cooling age [Gyr] 5.9800 3.1320 3.2700
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] 12.87 (0.4) 13.17 (0.5) 13.17 (0.5) 12.87 13.17 (0.5)
Distance [pc] 77.72 (2) 75.93 (3) 75.94 (3) 77.72 75.94 (3)
Composition H
Proper motion (right ascension) [mas/yr] -199.4998317 (0.3) -199.9582916 (0.6) -190.0 (6) -199.9582916
Proper motion (declination) [mas/yr] 25.92866881 (0.3) 25.55830898 (0.4) 26.0 (18) 25.55830898
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.00
V magnitude
R magnitude 19.10
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.79 (0.03) 21.79 (0.2) 21.86 (0.1)
g magnitude 19.99 (0.02) 19.99 (0.02)
r magnitude 19.14 (0.01) 19.14 (0.01)
i magnitude 18.81 (0.01) 18.81 (0.01)
z magnitude 18.71 (0.04) 18.72 (0.04)
G magnitude 19.48 (0.07) 19.52 19.48 19.52
BP magnitude 19.88 (0.07) 19.77 19.77
RP magnitude 18.58 (0.03) 18.52 18.52
Pan g magnitude 19.97 (0.02)
Pan r magnitude 19.32 (0.006)
Pan i magnitude 19.03 (0.01)
Pan z magnitude 18.95 (0.03)
Pan y magnitude 18.85 (0.03)
E(B-V) 0.006

* 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.