SDSS J081502.81+411710.3

All names: SDSS J081502.81+411710.3, Gaia EDR3 909698984103757824, Gaia DR3 909698984103757824, SDSS J081502.81+411710.5, SDSS J081502.80+411710.3, Gaia DR2 909698984103757824, SDSS J081502.80+411710.4, LAMOST J081502.81+411710.4, WD 0811+414, [HHD2009] SDSS J0815+4117, SDSS J081502.81+411710.4, GALEX J081502.7+411710

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 15 02.78 (0.3) 08 15 02.80 08 15 02.78 (0.4) 08 15 02.81 08 15 02.82 (0.3) 08 15 02.81 08 15 02.88 08 15 02.81
Declination 41 17 10.37 (0.3) 41 17 10.39 41 17 10.37 (0.3) 41 17 10.50 41 17 10.38 (0.3) 41 17 10.40 41 17 07.44 41 17 10.45
Spectral type DA+M DA+M DA+M DA+M: DA dM DA+M DA
Effective temperature [K] 9120.0 11565.0 (444) 11087.0 (171) 10900.0 (146)
log(g) [cgs] 6.25 7.80 (0.3) 7.68 (0.1) 7.83 (0.1)
Mass [M] 0.078 0.49 (0.1)
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.69 (0.4) 1.49 (0.6) 1.69 (0.4)
Distance [pc] 591.71 (150) 670.71 (279) 193.00 (29) 591.72 (150)
Composition H
Proper motion (right ascension) [mas/yr] -27.99961614 (0.4) -28.43711316 (0.8) -28.0 (0.4) -22.9
Proper motion (declination) [mas/yr] -0.629179899 (0.3) -0.353024452 (0.6) -0.629 (0.3) -11.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.88 (0.04) 19.92 19.88 (0.04) 19.92 (0.03) 19.92 19.95 (0.03)
g magnitude 19.39 (0.01) 19.36 19.39 (0.01) 19.36 (0.02) 19.37 19.38 (0.02)
r magnitude 19.50 (0.01) 19.52 19.50 (0.01) 19.52 (0.02) 19.52 19.53 (0.02)
i magnitude 19.59 (0.02) 19.54 19.59 (0.02) 19.55 (0.02) 19.55 19.55 (0.02)
z magnitude 19.48 (0.07) 19.43 19.48 (0.07) 19.43 (0.06) 19.43 19.44 (0.06)
G magnitude 19.45 (0.05) 19.48 19.45 (0.005)
BP magnitude 19.50 (0.05) 19.47
RP magnitude 19.19 (0.05) 19.39
Pan g magnitude 19.38 (0.01)
Pan r magnitude 19.51 (0.01)
Pan i magnitude 19.59 (0.01)
Pan z magnitude 19.53 (0.02)
Pan y magnitude 19.30 (0.02)
E(B-V) 0.040

* 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.