WD 1557-000A

All names: PSO J160008.042+000840.033, SDSS J160008.07-000840.4, Gaia DR2 4409986554547744640, WD 1557-000, WD 1557-000A

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Tremblay et al. 2011 Harris et al. 2003 SDSS DR12 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004
Right ascension 16 00 08.04 (0.2) 16 00 08.06 16 00 08.07 16 00 08.07 16 00 07.85 16 00 08.07 16 00 08.07
Declination -00 08 40.04 (0.1) -00 08 40.25 -00 08 40.43 -00 08 40.43 -00 08 37.32 -00 08 40.43 -00 08 40.42
Spectral type DA DA DA5 DA DA DA5.1 DA
Effective temperature [K] 8511.0 9820.0 (100) 9788.0 (61) 9713.0 (66) 9815.0 (57)
log(g) [cgs] 8.02 8.37 (0.1) 8.20 (0.1) 8.23 (0.1) 8.24 (0.09)
Mass [M] 0.609 0.83 (0.07) 0.7340000000000001 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.9425 1.1749
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] 6.93 (0.3)
Distance [pc] 144.22 (5)
Composition H H
Proper motion (right ascension) [mas/yr] -35.19368511 (0.5) -28.0 -27.7 -27.0
Proper motion (declination) [mas/yr] 24.70952261 (0.3) 30.0 29.8 29.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.15 19.15 (0.03) 19.13 19.15 (0.03) 19.15 19.13 (0.02) 19.15 (0.03)
g magnitude 18.66 18.63 (0.008) 18.64 18.66 (0.01) 18.66 18.64 (0.01) 18.66 (0.01)
r magnitude 18.61 18.59 (0.009) 18.61 18.62 (0.02) 18.62 18.61 (0.02) 18.62 (0.02)
i magnitude 18.65 18.65 (0.01) 18.66 18.66 (0.01) 18.65 18.66 (0.02) 18.65 (0.02)
z magnitude 18.74 18.82 (0.04) 18.74 18.74 (0.04) 18.74 18.74 (0.04) 18.74 (0.04)
G magnitude 18.57
BP magnitude 18.66
RP magnitude 18.39
Pan g magnitude 18.64 (0.005)
Pan r magnitude 18.60 (0.005)
Pan i magnitude 18.67 (0.004)
Pan z magnitude 18.78 (0.008)
Pan y magnitude 18.88 (0.03)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.