WD 0842+496

All names: SDSS J084623.47+492536.2, Gaia EDR3 1015135144116717056, Gaia DR2 1015135144116717056, Gaia DR3 1015135144116717056, GALEX J084623.5+492535, LSPM J0846+4925E, LP 164-52, SDSS J084623.47+492536.3, ** LDS 3815B, WDS J08463+4926B, NLTT 20180, WD 0842+496, USNO-B1.0 1394-00199142

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 46 23.66 (0.1) 08 46 23.66 (0.2) 08 46 23.66 08 46 23.46 (0.1) 08 46 20.69
Declination 49 25 31.86 (0.1) 49 25 32.01 (0.2) 49 25 31.86 49 25 36.52 (0.1) 49 26 00.60
Spectral type DA DA DA DA
Effective temperature [K] 9075.0 9177.0 (223)
log(g) [cgs] 7.48 7.36 (0.07)
Mass [M] 0.346 0.304 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.4527
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] 4.03 (0.2) 4.37 (0.3) 4.03 4.03 (0.2)
Distance [pc] 248.34 (13) 229.02 (16) 248.34 248.34 (13)
Composition H
Proper motion (right ascension) [mas/yr] 125.8376925 (0.2) 125.8824506 (0.4) 125.838 (0.2)
Proper motion (declination) [mas/yr] -291.0662909 (0.1) -290.5308849 (0.3) -291.066 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.80
V magnitude
R magnitude 18.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.18 (0.03)
g magnitude 18.67 (0.008)
r magnitude 18.65 (0.009)
i magnitude 18.74 (0.01)
z magnitude 18.97 (0.07)
G magnitude 18.58 (0.02) 18.61 18.58 18.58 (0.003)
BP magnitude 18.67 (0.02) 18.65
RP magnitude 18.43 (0.03) 18.49
Pan g magnitude 18.61 (0.007)
Pan r magnitude 18.68 (0.01)
Pan i magnitude 18.76 (0.01)
Pan z magnitude 18.91 (0.009)
Pan y magnitude 18.96 (0.03)
E(B-V) 0.012

* Constant surface field

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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.