SDSS J173444.93+335629.6

All names: SDSS J173444.93+335629.6, GALEX J173444.9+335629, SDSS J173444.92+335629.6, Gaia DR3 4602424179153082880, Gaia EDR3 4602424179153082880, Gaia DR2 4602424179153082880

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Kleinman et al. 2013
Right ascension 17 34 44.93 (0.3) 17 34 44.93 17 34 44.93 (0.4) 17 34 44.93 17 34 44.93 (0.3) 17 34 44.93
Declination 33 56 29.66 (0.3) 33 56 29.62 33 56 29.66 (0.4) 33 56 29.62 33 56 29.58 (0.3) 33 56 29.62
Spectral type DA+M DA+M: DA+M: DA DA
Effective temperature [K] 34365.0 (1028) 14575.0 34131.0 (978) 34239.0 (651)
log(g) [cgs] 7.57 (0.2) 6.50 7.74 (0.2) 7.47 (0.1)
Mass [M☉] 0.47 (0.07) 0.178 0.53 (0.09) 0.475 (0.04)
log(Luminosity) [L☉] -0.36 (0.1)
Cooling age [Gyr] 0.0041 (0.002)
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] 0.96 (0.4) 0.61 (0.4) 0.96 (0.4)
Distance [pc] 1037.24 (385) 1634.36 (1190) 1464.00 (201) 1037.24 (385)
Composition H H
Proper motion (right ascension) [mas/yr] 2.948282613 (0.4) 2.810514087 (1) 2.948 (0.4)
Proper motion (declination) [mas/yr] 5.265527644 (0.4) 6.091424887 (1) 5.266 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.56 (0.03) 19.59 19.56 (0.03) 19.59 (0.03)
g magnitude 19.79 (0.01) 19.82 19.79 (0.01) 19.82 (0.02)
r magnitude 20.25 (0.02) 20.29 20.25 (0.02) 20.29 (0.02)
i magnitude 20.31 (0.03) 20.36 20.31 (0.04) 20.36 (0.04)
z magnitude 20.10 (0.09) 20.13 20.10 (0.09) 20.13 (0.09)
G magnitude 20.06 (0.05) 20.12 20.06 (0.005)
BP magnitude 20.03 (0.05) 19.82
RP magnitude 19.89 (0.08) 19.84
Pan g magnitude 19.85 (0.008)
Pan r magnitude 20.29 (0.01)
Pan i magnitude 20.46 (0.01)
Pan z magnitude 20.60 (0.08)
Pan y magnitude 20.46 (0.2)
E(B-V) 0.028

* 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.