GD 303

All names: WD 1011+570, TIC 137967729, GD 303, LAMOST J101437.20+564831.7, SDSS J101437.12+564832.4, EGGR 386, GD303, LP 92-65, 2MASS J10143708+5648328, SDSS J101437.11+564832.4, WDJ101437.09+564832.69, Gaia DR2 1045463042064412160, GALEX J101437.1+564831, Gaia EDR3 1045463042064412160, Gaia DR3 1045463042064412160, WD 1011+57, SBSS 1011+570

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Gaia DR2 Stilism Bergeron et al. 2011 Zuckerman et al. 2010 Farihi et al. 2010 Wolff et al. 2002 Sion et al. 1990 Wegner et al. 1987 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 10 14 37.26 (0.02) 10 14 37.26 (0.03) 10 14 37.26 10 14 37.09 (0.02) 10 14 37.26 10 14 36.96
Declination 56 48 31.11 (0.02) 56 48 31.16 (0.03) 56 48 31.11 56 48 32.69 (0.02) 56 48 31.16 56 48 35.28
Spectral type DBA DB DBZ DBZ DBZ DB DBZ4 DB4
Effective temperature [K] 16500.0 (226) 17350.0 (424) 18000.0 18000.0 18000.0 (1000) 18000.0 17000.0 17928.0 (214)
log(g) [cgs] 7.92 (0.01) 8.13 (0.07) 7.80 (0.2) 8.04 (0.01)
Mass [M] 0.547 (0.01) 0.67 (0.04) 0.6 0.619 (0.01)
log(Luminosity) [L] -1.95
Cooling age [Gyr] 0.1622 0.7600 0.1200
log(H/He) -5.5 <-5.01 (0.2) -5.5 <-5.5 <-5.5
log(C/He) <-6.5 <-6.5
log(Ca/He) -7.75 -7.8 -7.75 (0.5)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He) -5.75 (0.5)
log(Al/He)
log(Si/He) <7.0
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) -5.5 (0.8)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 18.33 (0.03) 18.35 (0.05) 18.33 18.33 (0.03) 18.35 (0.05)
Distance [pc] 54.56 (0.08) 54.48 (0.1) 48.00 54.56 54.56 (0.08) 54.48 (0.1)
Composition He He
Proper motion (right ascension) [mas/yr] 90.48240609 (0.02) 90.50906599 (0.07) 90.482 (0.03) 90.50906599
Proper motion (declination) [mas/yr] -98.96893693 (0.02) -98.99749222 (0.07) -98.969 (0.02) -98.99749222
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.50
V magnitude 14.57 14.60
R magnitude
I magnitude
J magnitude 15.03 (0.04)
H magnitude 15.16 (0.07)
K magnitude 15.46 (0.2)
u magnitude 14.75 (0.005) 14.92 (0.005)
g magnitude 14.94 (0.004) 14.96 (0.004)
r magnitude 15.01 (0.004) 16.31 (0.02)
i magnitude 15.27 (0.004) 15.52 (0.006)
z magnitude 15.31 (0.006) 15.46 (0.007)
G magnitude 14.60 (0.001) 14.62 14.60 14.60 (0.003) 14.62
BP magnitude 14.53 (0.001) 14.49 14.49
RP magnitude 14.74 (0.002) 14.74 14.74
Pan g magnitude 14.49 (0.004)
Pan r magnitude 14.79 (0.002)
Pan i magnitude 15.07 (0.002)
Pan z magnitude 15.30 (0.002)
Pan y magnitude 15.48 (0.004)
E(B-V) 0.002

* 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.