WD 1551+013B

All names: Gaia DR2 4411053531801509248, WD 1551+013B, SDSS J155412.85+011119.8, SDSS J155412.84+011119.8, PSO J155412.827+011119.932

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Tremblay et al. 2011 Harris et al. 2003 SDSS DR12 Simbad Kleinman et al. 2013 Kleinman et al. 2004
Right ascension 15 54 12.82 (0.2) 15 54 12.85 15 54 12.85 15 54 12.85 15 54 12.85
Declination 01 11 19.89 (0.1) 01 11 19.86 01 11 19.87 01 11 19.81 01 11 19.82
Spectral type DA DA DA3 DA DA
Effective temperature [K] 11913.0 19290.0 (510) 18750.0 (314) 18374.0 (301)
log(g) [cgs] 7.51 7.73 (0.08) 7.76 (0.06) 7.70 (0.06)
Mass [M] 0.369 0.48 (0.04) 0.507 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2163 0.0537
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] 3.03 (0.3)
Distance [pc] 330.19 (28)
Composition H H
Proper motion (right ascension) [mas/yr] -27.40698618 (0.5) -2.0 -23.0
Proper motion (declination) [mas/yr] 1.936165778 (0.4) 0.0 2.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.79 18.78 (0.02) 18.78 18.77 (0.02) 18.79 (0.02)
g magnitude 18.54 18.51 (0.007) 18.51 18.51 (0.02) 18.54 (0.02)
r magnitude 18.79 18.78 (0.01) 18.79 18.80 (0.02) 18.79 (0.02)
i magnitude 18.99 19.00 (0.02) 19.00 19.00 (0.02) 18.99 (0.02)
z magnitude 19.24 19.34 (0.08) 19.34 19.33 (0.08) 19.23 (0.08)
G magnitude 18.68
BP magnitude 18.56
RP magnitude 18.76
Pan g magnitude 18.54 (0.01)
Pan r magnitude 18.78 (0.008)
Pan i magnitude 19.04 (0.004)
Pan z magnitude 19.19 (0.03)
Pan y magnitude 19.28 (0.02)

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.