US 1465

All names: SDSS J084105.88+453943.6, Gaia DR3 917547474196768256, Gaia EDR3 917547474196768256, [HHD2009] SDSS J0841+4539, WIRED J084105.87+453943.6, Gaia DR2 917547474196768256, SDSS J084105.87+453943.6, WD 0837+458, SDSS J084105.87+453943.5, US 1465

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 08 41 05.88 (0.2) 08 41 05.87 08 41 05.88 (0.3) 08 41 05.87 08 41 05.87 (0.2) 08 41 05.88 08 41 05.40 08 41 05.88
Declination 45 39 43.50 (0.2) 45 39 43.63 45 39 43.50 (0.3) 45 39 43.60 45 39 43.57 (0.2) 45 39 43.58 45 39 42.12 45 39 43.62
Spectral type DA+M DA DA+M DA+M DA d DA+M
Effective temperature [K] 19868.0 (705) 21300.0 (650) 9745.0 (62) 9639.0 (72)
log(g) [cgs] 7.66 (0.1) 7.77 (0.09) 8.56 (0.07) 8.54 (0.09)
Mass [M] 0.45 (0.06) 0.51 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.0363
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] 1.86 (0.3) 1.51 (0.4) 1.86 (0.3)
Distance [pc] 538.41 (86) 663.71 (190) 276.00 (91) 538.42 (86)
Composition H
Proper motion (right ascension) [mas/yr] 2.78342768 (0.3) 2.19421312 (0.6) 2.783 (0.3) -0.7
Proper motion (declination) [mas/yr] -4.252285335 (0.3) -0.844245527 (0.6) -4.252 (0.3) -2.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude 18.90
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.76 (0.02) 18.75 18.76 (0.02) 18.75 (0.03) 18.76 18.81 (0.03)
g magnitude 18.63 (0.008) 18.63 18.63 (0.008) 18.63 (0.02) 18.63 18.66 (0.02)
r magnitude 18.89 (0.01) 18.94 18.89 (0.01) 18.94 (0.01) 18.94 18.96 (0.02)
i magnitude 18.69 (0.01) 18.78 18.69 (0.01) 18.78 (0.02) 18.78 18.80 (0.02)
z magnitude 18.20 (0.02) 18.26 18.20 (0.02) 18.26 (0.03) 18.26 18.29 (0.03)
G magnitude 18.88 (0.02) 18.89 18.88 (0.004)
BP magnitude 18.79 (0.02) 18.76
RP magnitude 18.35 (0.04) 18.34
Pan g magnitude 18.73 (0.02)
Pan r magnitude 18.93 (0.02)
Pan i magnitude 18.78 (0.02)
Pan z magnitude 18.36 (0.05)
Pan y magnitude 18.14 (0.02)
E(B-V) 0.026

* 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.