SDSS J085844.99+394552.9

All names: Gaia DR3 720117375311443200, WD 0855+399, SDSS J085845.00+394552.9, Gaia DR2 720117375311443200, Gaia EDR3 720117375311443200, GALEX J085845.0+394553, SDSS J085844.99+394552.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H 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 58 45.00 (0.4) 08 58 45.00 08 58 45.00 (0.5) 08 58 45.00 (0.4) 08 58 45.00 08 58 44.69 08 58 45.00
Declination 39 45 52.98 (0.3) 39 45 52.92 39 45 52.98 (0.3) 39 45 52.91 (0.3) 39 45 52.91 39 45 50.40 39 45 52.90
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 25709.0 23518.0 (724) 23258.0 (741)
log(g) [cgs] 7.50 7.63 (0.1) 7.59 (0.1)
Mass [M☉] 0.414 0.472 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0154
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] 0.98 (0.6) 0.92 (0.8) 0.98 (0.6)
Distance [pc] 1021.54 (627) 1081.21 (964) 1021.55 (627)
Composition H
Proper motion (right ascension) [mas/yr] -0.445937901 (0.5) -0.054906214 (1) -0.446 (0.5) -7.9
Proper motion (declination) [mas/yr] 4.045784087 (0.4) 4.060420802 (0.7) 4.046 (0.4) 1.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.55 (0.03) 19.55 (0.03) 19.57 (0.03) 19.57 19.58 (0.03)
g magnitude 19.59 (0.01) 19.59 (0.01) 19.60 (0.03) 19.60 19.60 (0.03)
r magnitude 20.01 (0.02) 20.00 (0.02) 19.99 (0.02) 19.99 19.99 (0.02)
i magnitude 20.24 (0.03) 20.24 (0.03) 20.25 (0.03) 20.25 20.25 (0.03)
z magnitude 20.62 (0.2) 20.62 (0.2) 20.57 (0.1) 20.57 20.59 (0.1)
G magnitude 19.81 (0.05) 19.85 19.81 (0.005)
BP magnitude 19.78 (0.05) 19.64
RP magnitude 20.10 (0.1) 19.82
Pan g magnitude 19.69 (0.02)
Pan r magnitude 19.95 (0.02)
Pan i magnitude 20.26 (0.01)
Pan z magnitude 20.50 (0.05)
Pan y magnitude
E(B-V) 0.025

* 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.