GALEX 2688765534420340894

All names: USNO-A2.0 1050-08187144, Gaia EDR3 4559759451502217088, SDSS J165155.97+182112.80, Gaia DR3 4559759451502217088, SDSS J165155.96+182112.8, Gaia DR2 4559759451502217088, GALEX 2688765534420340894, SDSS J165155.97+182112.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 51 55.98 (0.07) 16 51 55.97 16 51 55.98 (0.09) 16 51 55.98 16 51 55.96 (0.09) 16 51 55.97
Declination 18 21 12.87 (0.07) 18 21 12.85 18 21 12.87 (0.09) 18 21 12.87 18 21 12.80 (0.09) 18 21 12.83
Spectral type DBAH: DB DBAH DBAH: DB
Effective temperature [K] 14277.0 11789.0 14863.0 (94) 12446.0 (227) 14938.0 (155)
log(g) [cgs] 8.00 7.89 8.00 (0) 7.99 (0.03) 8.44 (0.1)
Mass [M] 0.588 0.52 0.578 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.3444
log(H/He) -5.699 <-5.45
log(C/He)
log(Ca/He) <-7.71
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] 5.46 (0.1) 5.35 (0.2) 5.46 5.35 (0.2)
Distance [pc] 183.09 (4) 186.95 (5) 216.00 183.09 186.95 (5)
Composition He
Proper motion (right ascension) [mas/yr] 14.72490037 (0.09) 14.53028875 (0.2) 14.53 (0.2)
Proper motion (declination) [mas/yr] 4.499161383 (0.09) 4.493326723 (0.2) 4.493 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.50 (0.3)
V magnitude
R magnitude 17.80 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.00 (0.01) 18.00 (0.01) 17.98 (0.02)
g magnitude 17.93 (0.006) 17.93 (0.006) 17.97 (0.02)
r magnitude 18.17 (0.007) 18.17 (0.007) 18.18 (0.02)
i magnitude 18.36 (0.01) 18.36 (0.01) 18.34 (0.02)
z magnitude 18.56 (0.03) 18.56 (0.03) 18.58 (0.03)
G magnitude 18.04 (0.008) 18.07 18.04 18.07 (0.002)
BP magnitude 18.04 (0.008) 17.97
RP magnitude 18.05 (0.01) 18.01
Pan g magnitude 17.99 (0.004)
Pan r magnitude 18.17 (0.003)
Pan i magnitude 18.36 (0.004)
Pan z magnitude 18.54 (0.007)
Pan y magnitude 18.67 (0.01)
E(B-V) 0.045

* 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.