WD 0853+186

All names: SDSS J085608.93+182350.5, Gaia DR2 612308782739047552, WD 0853+186, Gaia EDR3 612308782739047552, SDSS J085608.93+182350.4, WD 0853+185, Gaia DR3 612308782739047552, SDSS J085608.92+182350.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 56 08.85 (0.2) 08 56 08.93 08 56 08.85 (0.3) 08 56 08.85 08 56 08.97 (0.2) 08 56 08.90 08 56 08.93
Declination 18 23 50.45 (0.1) 18 23 50.42 18 23 50.45 (0.2) 18 23 50.45 18 23 50.47 (0.1) 18 23 51.72 18 23 50.47
Spectral type DA DA DA ? DA DA
Effective temperature [K] 6639.0 6825.0 (156) 6726.0 (72)
log(g) [cgs] 8.12 8.13 (0.05) 7.81 (0.2)
Mass [M] 0.664 0.672 (0.05) 0.495 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 2.1820
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] 8.97 (0.2) 9.24 (0.4) 8.97 8.97 (0.2)
Distance [pc] 111.53 (3) 108.20 (4) 111.53 111.53 (3)
Composition H
Proper motion (right ascension) [mas/yr] -107.7285124 (0.2) -107.4860697 (0.6) -107.729 (0.2)
Proper motion (declination) [mas/yr] -1.188034375 (0.2) -1.526038395 (0.4) -1.188 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.84 (0.03) 19.84 (0.03) 19.84 (0.04)
g magnitude 19.24 (0.01) 19.24 (0.01) 19.26 (0.01)
r magnitude 18.98 (0.01) 18.98 (0.01) 18.99 (0.02)
i magnitude 18.92 (0.01) 18.92 (0.01) 18.93 (0.02)
z magnitude 18.93 (0.05) 18.93 (0.05) 18.95 (0.05)
G magnitude 18.96 (0.03) 18.99 18.96 18.96 (0.003)
BP magnitude 19.18 (0.03) 19.15
RP magnitude 18.57 (0.03) 18.49
Pan g magnitude 19.19 (0.007)
Pan r magnitude 18.99 (0.007)
Pan i magnitude 18.90 (0.008)
Pan z magnitude 18.94 (0.01)
Pan y magnitude 19.01 (0.05)
E(B-V) 0.005

* 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.