WD 1553+027

All names: GALEX J155558.0+023445, Gaia DR2 4424792926022646400, SDSS J155558.07+023444.8, SDSS J155558.08+023444.9, SDSS J155558.08+023444.8, WD 1553+027, Gaia EDR3 4424792926022646400, Gaia DR3 4424792926022646400

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism 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 15 55 58.06 (0.3) 15 55 58.08 15 55 58.06 (0.4) 15 55 58.08 (0.3) 15 55 58.08 15 55 58.13 15 55 58.08 15 55 58.08
Declination 02 34 44.56 (0.2) 02 34 44.89 02 34 44.57 (0.3) 02 34 44.88 (0.2) 02 34 44.96 02 34 42.96 02 34 44.89 02 34 44.87
Spectral type DA DA DA DA3.5 DA DA
Effective temperature [K] 12005.0 14343.0 (567) 17746.0 (556) 14504.0 (547)
log(g) [cgs] 8.00 7.98 (0.1) 8.16 (0.1) 8.00 (0.1)
Mass [M] 0.606 0.706 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.3729
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] 2.77 (0.4) 2.75 (0.5) 2.77 (0.4)
Distance [pc] 361.63 (48) 363.86 (72) 361.62 (48)
Composition H
Proper motion (right ascension) [mas/yr] -15.51476318 (0.4) -15.49017649 (0.9) -15.515 (0.4) -8.9 -10.0
Proper motion (declination) [mas/yr] -20.22182639 (0.3) -20.5157728 (0.8) -20.222 (0.3) -22.3 -26.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.75 (0.04) 19.75 (0.04) 19.71 (0.05) 19.71 19.72 (0.05) 19.71 (0.04)
g magnitude 19.40 (0.01) 19.40 (0.01) 19.37 (0.02) 19.37 19.39 (0.02) 19.37 (0.02)
r magnitude 19.61 (0.02) 19.61 (0.02) 19.62 (0.02) 19.61 19.62 (0.02) 19.61 (0.02)
i magnitude 19.86 (0.03) 19.86 (0.03) 19.88 (0.03) 19.89 19.89 (0.03) 19.89 (0.03)
z magnitude 20.12 (0.2) 20.12 (0.2) 20.29 (0.2) 20.27 20.33 (0.2) 20.27 (0.2)
G magnitude 19.50 (0.05) 19.53 19.50 (0.005)
BP magnitude 19.50 (0.05) 19.53
RP magnitude 19.49 (0.06) 19.59
Pan g magnitude 19.40 (0.006)
Pan r magnitude 19.62 (0.007)
Pan i magnitude 19.87 (0.009)
Pan z magnitude 20.05 (0.03)
Pan y magnitude 20.05 (0.04)
E(B-V) 0.062

* 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.