SDSS J155359.87+082131.3

All names: WIRED J155359.87+082131.3, SDSS J155359.88+082131.2, SDSS J155359.89+082131.2, Gaia DR3 4454399235105537280, GALEX J155359.8+082131, Gaia DR2 4454399235105537280, Gaia EDR3 4454399235105537280, SDSS J155359.87+082131.4, WD 1551+085, SDSS J155359.87+082131.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 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 15 53 59.89 (0.06) 15 53 59.87 15 53 59.89 (0.08) 15 53 59.89 15 53 59.86 (0.06) 15 53 59.87 15 53 59.35 15 53 59.87
Declination 08 21 31.20 (0.05) 08 21 31.38 08 21 31.20 (0.06) 08 21 31.20 08 21 31.39 (0.05) 08 21 31.38 08 21 29.88 08 21 31.38
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 15049.0 16830.0 (160) 16054.0 (338) 15904.0 (105) 16519.0 (103)
log(g) [cgs] 8.24 8.30 (0.03) 8.31 (0.02) 8.20 (0.02) 8.26 (0.02)
Mass [M] 0.761 0.8 (0.02) 0.805 (0.02) 0.763 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.2870 0.2344
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] 9.17 (0.07) 9.13 (0.1) 9.17 9.17 (0.07)
Distance [pc] 109.03 (0.9) 109.59 (1) 109.03 109.03 (0.9)
Composition H H
Proper motion (right ascension) [mas/yr] 20.21263168 (0.07) 19.87118123 (0.2) 20.213 (0.07) 22.5
Proper motion (declination) [mas/yr] -11.86952465 (0.06) -11.61653473 (0.1) -11.87 (0.06) -9.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.25 (0.03)
H magnitude 17.27 (0.04)
K magnitude 17.25 (0.09)
u magnitude 16.96 (0.008) 16.96 (0.008) 16.98 (0.02) 16.98 16.98 (0.02)
g magnitude 16.72 (0.004) 16.73 (0.004) 16.75 (0.01) 16.75 16.76 (0.01)
r magnitude 17.01 (0.005) 17.01 (0.005) 17.02 (0.01) 17.01 17.02 (0.01)
i magnitude 17.25 (0.006) 17.25 (0.006) 17.27 (0.02) 17.26 17.27 (0.02)
z magnitude 17.50 (0.01) 17.50 (0.01) 17.55 (0.03) 17.54 17.57 (0.02)
G magnitude 16.87 (0.004) 16.89 16.87 16.87 (0.003)
BP magnitude 16.84 (0.004) 16.83
RP magnitude 16.97 (0.01) 16.97
Pan g magnitude 16.75 (0.004)
Pan r magnitude 17.01 (0.003)
Pan i magnitude 17.29 (0.004)
Pan z magnitude 17.50 (0.005)
Pan y magnitude 17.71 (0.02)
E(B-V) 0.012

* 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.