WD 1542+517

All names: Gaia DR3 1404403315940926080, SDSS J154415.27+513310.04, Gaia DR2 1404403315940926080, SDSS J154415.27+513310.0, SDSS J154415.26+513310.0, Gaia EDR3 1404403315940926080, USNO-B1.0 1415-00260158, SDSS J154415.24+513310.2, WD 1542+517, SBSS 1542+517

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 15 44 15.28 (0.05) 15 44 15.25 15 44 15.28 (0.07) 15 44 15.28 15 44 15.25 (0.05) 15 44 14.90
Declination 51 33 10.06 (0.06) 51 33 10.25 51 33 10.07 (0.08) 51 33 10.06 51 33 10.27 (0.06) 51 33 08.28
Spectral type DA DA DA DA DA DA DA
Effective temperature [K] 33610.0 (194) 26617.0 33575.0 (107) 35684.0 (2181)
log(g) [cgs] 7.81 (0.04) 7.58 7.93 (0.03) 7.94 (0.05)
Mass [M] 0.56 (0.02) 0.443 0.617 (0.01) 0.625 (0.04)
log(Luminosity) [L] -0.56 (0.03)
Cooling age [Gyr] 0.0062 (0.0001) 0.0137
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] 2.71 (0.06) 2.72 (0.08) 2.71 2.71 (0.06)
Distance [pc] 369.45 (8) 367.94 (12) 369.45 369.45 (8)
Composition H H
Proper motion (right ascension) [mas/yr] 19.95239475 (0.06) 19.9991922 (0.1) 19.952 (0.06)
Proper motion (declination) [mas/yr] -12.92534455 (0.08) -12.84071925 (0.2) -12.925 (0.08)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.90
V magnitude
R magnitude 17.90
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.85 (0.007) 16.84 (0.02) 16.84 (0.007)
g magnitude 17.14 (0.004) 17.19 (0.02) 17.14 (0.004)
r magnitude 17.61 (0.006) 17.60 (0.02) 17.61 (0.006)
i magnitude 17.98 (0.008) 17.98 (0.03) 17.98 (0.008)
z magnitude 18.25 (0.03) 18.25 (0.03) 18.26 (0.03)
G magnitude 17.38 (0.006) 17.41 17.38 17.38 (0.003)
BP magnitude 17.26 (0.006) 17.20
RP magnitude 17.69 (0.01) 17.66
Pan g magnitude 17.21 (0.009)
Pan r magnitude 17.62 (0.004)
Pan i magnitude 17.99 (0.006)
Pan z magnitude 18.27 (0.008)
Pan y magnitude 18.44 (0.01)
E(B-V) 0.019

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

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 (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.