WD 1551+037

All names: Gaia DR3 4425127624234553984, SDSS J155413.54+033634.3, SDSS J155413.53+033634.4, GALEX J155413.5+033634, SDSS J155413.52+033634.5, Gaia DR2 4425127624234553984, Gaia EDR3 4425127624234553984, SDSS J155413.53+033634.5, J1554+0336, WD 1551+037

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Caron et al. 2023 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Dufour et al. 2005 Harris et al. 2003 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 54 13.62 (0.2) 15 54 13.54 15 54 13.52 15 54 13.62 (0.2) 15 54 13.62 15 54 13.52 (0.2) 15 54 13.53 15 54 13.13 15 54 13.53
Declination 03 36 33.10 (0.1) 03 36 34.38 03 36 34.74 03 36 33.15 (0.2) 03 36 33.10 03 36 34.74 (0.1) 03 36 34.56 03 36 30.60 03 36 34.49
Spectral type DQ DQ DQ DQ DQ DC DQ DQ DQ DQ DQ
Effective temperature [K] 6559.0 (40) 6626.0 (117) 6512.0 6480.0 (60) 6643.0 (227) 10112.0 (47) 10116.0 (51)
log(g) [cgs] 7.92 (0.03) 7.94 8.00 (0) 8.00 (0) 8.00 (0.06) 8.35 (0.5) 9.31 (0.5)
Mass [M] 0.529 (0.03) 0.5368 0.572 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 1.7300 1.6400
log(H/He)
log(C/He) -6.88 -6.7818 (0.1) -6.94 (0.03) -6.84 (0.2)
log(Ca/He)
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] 9.94 (0.2) 9.76 (0.3) 9.76 9.76 (0.3) 9.94 9.94 (0.2)
Distance [pc] 100.58 (2) 102.46 (3) 102.45 (3) 102.45 (3) 96.00 100.58 100.58 (2)
Composition He He He He
Proper motion (right ascension) [mas/yr] 97.35724729 (0.2) 97.51486969 (0.4) 97.357 (0.2) 96.5
Proper motion (declination) [mas/yr] -102.407215 (0.2) -102.3498346 (0.3) -102.407 (0.2) -101.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.10 (0.07)
H magnitude
K magnitude
u magnitude 19.32 (0.02) 19.43 (0.03) 19.44 19.32 (0.02) 19.38 (0.03) 19.44 19.39 (0.03)
g magnitude 18.89 (0.009) 18.89 18.89 (0.009) 18.87 (0.01) 18.89 18.88 (0.01)
r magnitude 18.66 (0.009) 18.66 18.66 (0.009) 18.66 (0.01) 18.66 18.66 (0.01)
i magnitude 18.65 (0.01) 18.63 18.65 (0.01) 18.62 (0.01) 18.63 18.63 (0.01)
z magnitude 18.58 (0.03) 18.71 18.58 (0.03) 18.69 (0.04) 18.70 18.70 (0.04)
G magnitude 18.65 (0.03) 18.69 18.65 18.65 (0.003)
BP magnitude 18.88 (0.03) 18.76
RP magnitude 18.34 (0.02) 18.28
Pan g magnitude 18.86 (0.007) 18.86 (0.007)
Pan r magnitude 18.68 (0.007) 18.68 (0.007)
Pan i magnitude 18.66 (0.005) 18.66 (0.006)
Pan z magnitude 18.69 (0.009) 18.69 (0.007)
Pan y magnitude 18.73 (0.02) 18.73 (0.02)
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.