SDSS J084940.56+065507.2

All names: Gaia EDR3 583193955355865984, Gaia DR2 583193955355865984, SDSS J084940.56+065507.2

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Kleinman et al. 2013
Right ascension 08 49 40.57 (0.4) 08 49 40.57 08 49 40.57 (0.7) 08 49 40.56 08 49 40.56 08 49 40.56
Declination 06 55 07.07 (0.2) 06 55 07.31 06 55 07.08 (0.3) 06 55 07.25 06 55 07.25 06 55 07.25
Spectral type DA+M DA+M DA+M DA+M
Effective temperature [K] 12488.0 15422.0 (706) 20496.0 (458)
log(g) [cgs] 7.29 7.91 (0.2) 6.99 (0.08)
Mass [M] 0.297 0.56 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.1610
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] 1.57 (0.8) 1.49 (0.9)
Distance [pc] 635.66 (308) 669.45 (421) 481.00 (103)
Composition H
Proper motion (right ascension) [mas/yr] 1.590819196 (0.7) 1.024514198 (1)
Proper motion (declination) [mas/yr] -12.68587113 (0.4) -12.52140455 (0.6)
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 19.99 (0.03) 19.95 19.95 (0.04) 19.95 (0.04)
g magnitude 19.75 (0.01) 19.68 19.68 (0.04) 19.68 (0.04)
r magnitude 20.10 (0.03) 19.91 19.91 (0.2)
i magnitude 20.84 (0.08) 20.39 20.39 (0.8)
z magnitude 20.69 (0.2) 22.85 22.85 (0.8) 22.85 (0.8)
G magnitude 19.82 19.87
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.032

* 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.