SDSS J081101.60+404257.5

All names: GALEX J081101.6+404258, WD 0807+408, Gaia DR2 921585014037470464, Gaia DR3 921585014037470464, Gaia EDR3 921585014037470464, SDSS J081101.60+404257.5, SDSS J081101.60+404257.6, SDSS J081101.59+404257.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 11 01.58 (0.4) 08 11 01.60 08 11 01.58 (0.6) 08 11 01.60 (0.4) 08 11 01.60 08 11 01.44 08 11 01.60
Declination 40 42 57.24 (0.4) 40 42 57.49 40 42 57.25 (0.5) 40 42 57.51 (0.4) 40 42 57.58 40 42 52.20 40 42 57.56
Spectral type DC: DC: DC DC: DC: DC: DC:+MS
Effective temperature [K] 9728.0 9880.0 11193.0 (470) 10874.0 (443)
log(g) [cgs] 7.73 7.69 7.90 (0.5) 8.24 (0.6)
Mass [M] 0.456 0.415
log(Luminosity) [L]
Cooling age [Gyr] 0.4711 0.4396
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.76 (0.5) 2.53 (0.8) 3.76 (0.5)
Distance [pc] 265.68 (36) 395.69 (126) 265.67 (36)
Composition
Proper motion (right ascension) [mas/yr] -12.21186599 (0.5) -12.07903641 (1) -12.212 (0.5) -17.8
Proper motion (declination) [mas/yr] -16.8349516 (0.4) -14.2976041 (1) -16.835 (0.4) -27.0
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 19.94 (0.04) 19.94 (0.04) 20.01 (0.04) 20.01 20.03 (0.04)
g magnitude 19.85 (0.01) 19.85 (0.01) 19.82 (0.03) 19.82 19.82 (0.03)
r magnitude 19.94 (0.02) 19.94 (0.02) 19.91 (0.03) 19.91 19.91 (0.03)
i magnitude 20.10 (0.03) 20.11 (0.03) 20.09 (0.03) 20.09 20.09 (0.03)
z magnitude 20.41 (0.1) 20.41 (0.1) 20.41 (0.1) 20.41 20.43 (0.1)
G magnitude 19.86 (0.05) 19.92 19.86 (0.007)
BP magnitude 19.94 (0.05) 19.97
RP magnitude 19.81 (0.1) 19.88
Pan g magnitude 19.87 (0.01)
Pan r magnitude 19.95 (0.01)
Pan i magnitude 20.11 (0.01)
Pan z magnitude 20.22 (0.03)
Pan y magnitude 19.98 (0.2)
E(B-V) 0.021

* 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.