SDSS J134417.06+281511.2

All names: SDSS J134417.06+281511.20, SDSS J134417.05+281511.1, Gaia DR2 1454816954866111744, Gaia EDR3 1454816954866111744, Gaia DR3 1454816954866111744, GALEX J134417.0+281511, SDSS J134417.06+281511.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 44 17.05 (0.4) 13 44 17.05 13 44 17.05 (0.5) 13 44 17.06 (0.4) 13 44 17.06
Declination 28 15 11.10 (0.3) 28 15 11.19 28 15 11.10 (0.4) 28 15 11.27 (0.3) 28 15 11.23
Spectral type DB DB DB DB
Effective temperature [K] 12426.0 13491.0 11612.0 13574.0 (377)
log(g) [cgs] 6.87 7.75 7.50 8.29 (0.3)
Mass [M] 0.192 0.456 0.341 0.76 (0.2)
log(Luminosity) [L]
Cooling age [Gyr] 0.2414
log(H/He) <-6.142
log(C/He)
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] 1.75 (0.5) 1.65 (0.6) 1.75 (0.5)
Distance [pc] 570.12 (157) 604.91 (211) 570.13 (157)
Composition He
Proper motion (right ascension) [mas/yr] -3.852387137 (0.6) -5.436379078 (1) -3.852 (0.6)
Proper motion (declination) [mas/yr] -10.79982119 (0.4) -10.13185058 (0.8) -10.8 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.98 (0.04) 19.98 (0.04) 20.05 (0.05)
g magnitude 20.02 (0.02) 20.02 (0.02) 20.02 (0.02)
r magnitude 20.24 (0.02) 20.24 (0.03) 20.24 (0.03)
i magnitude 20.47 (0.04) 20.47 (0.04) 20.47 (0.04)
z magnitude 20.98 (0.3) 20.98 (0.3) 20.92 (0.2)
G magnitude 20.11 (0.05) 20.17 20.11 (0.005)
BP magnitude 20.07 (0.05) 20.04
RP magnitude 20.10 (0.06) 20.04
Pan g magnitude 20.07 (0.03)
Pan r magnitude 20.19 (0.02)
Pan i magnitude 20.43 (0.008)
Pan z magnitude 20.60 (0.04)
Pan y magnitude 20.03 (0.2)
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.