SDSS J080541.62+170624.8

All names: Gaia DR2 656780729548210176, Gaia DR3 656780729548210176, WD 0802+172, [HHD2009] SDSS J0805+1706, Gaia EDR3 656780729548210176, SDSS J080541.62+170624.8, SDSS J080541.63+170624.9, SDSS J080541.52+170624.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 08 05 41.63 (0.8) 08 05 41.63 08 05 41.63 (1) 08 05 41.62 08 05 41.63 (0.8) 08 05 41.42 08 05 41.63
Declination 17 06 24.93 (0.5) 17 06 24.87 17 06 24.92 (0.6) 17 06 24.80 17 06 24.84 (0.5) 17 06 23.04 17 06 24.90
Spectral type DA+M DA+M DA+M DA dM DA+M
Effective temperature [K] 7123.0 19640.0 (2675) 8949.0 (200)
log(g) [cgs] 7.18 7.81 (0.5) 8.59 (0.2)
Mass [M] 0.242 0.52 (0.3)
log(Luminosity) [L]
Cooling age [Gyr] 0.6627
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] 0.61 (1) 2.39 (1) 0.61 (1)
Distance [pc] 1640.59 (2563) 418.97 (242) 1640.69 (2564)
Composition H
Proper motion (right ascension) [mas/yr] -3.211131635 (1) 0.260281712 (2) -3.211 (1)
Proper motion (declination) [mas/yr] 5.235986927 (0.7) 2.73766306 (1) 5.236 (0.7)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.65 (0.06) 20.61 20.64 (0.07) 20.61 20.62 (0.06)
g magnitude 20.45 (0.02) 20.45 20.46 (0.02) 20.45 20.46 (0.03)
r magnitude 20.61 (0.03) 20.58 20.61 (0.04) 20.58 20.60 (0.03)
i magnitude 20.33 (0.04) 20.31 20.32 (0.04) 20.31 20.32 (0.04)
z magnitude 19.59 (0.08) 19.58 19.59 (0.08) 19.57 19.60 (0.08)
G magnitude 20.46 (0.09) 20.49 20.46 (0.008)
BP magnitude 20.61 (0.09) 20.32
RP magnitude 19.80 (0.1) 19.65
Pan g magnitude 20.44 (0.03)
Pan r magnitude 20.59 (0.02)
Pan i magnitude 20.29 (0.02)
Pan z magnitude 19.87 (0.01)
Pan y magnitude 19.62 (0.1)
E(B-V) 0.030

* 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.