SDSS J085544.29+241720.8

All names: SDSS J085544.28+241720.7, GALEX J085544.2+241721, Gaia DR3 689730962728343424, SDSS J085544.29+241720.8, Gaia EDR3 689730962728343424, Gaia DR2 689730962728343424

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 55 44.27 (0.5) 08 55 44.29 08 55 44.27 (0.7) 08 55 44.30 (0.5) 08 55 44.29
Declination 24 17 20.64 (0.3) 24 17 20.71 24 17 20.64 (0.4) 24 17 20.72 (0.3) 24 17 20.76
Spectral type DA DAH DAH DAH DA
Effective temperature [K] 9430.3 (314) 9193.0 9144.0 (211)
log(g) [cgs] 7.89 (0.2) 7.82 7.63 (0.4)
Mass [M] 0.5331385805237004 (0.2) 0.499
log(Luminosity) [L]
Cooling age [Gyr] 0.6016
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] 3.31 (0.6) 2.63 (0.7) 3.31 (0.6)
Distance [pc] 302.17 (52) 379.71 (107) 302.17 (52)
Composition H
Proper motion (right ascension) [mas/yr] -27.07276314 (0.6) -28.57075447 (1) -27.073 (0.6)
Proper motion (declination) [mas/yr] -4.935555663 (0.6) -4.315143231 (1) -4.936 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.69 (0.06) 20.68 (0.06) 20.63 (0.06)
g magnitude 20.16 (0.02) 20.16 (0.02) 20.18 (0.02)
r magnitude 20.22 (0.03) 20.22 (0.03) 20.28 (0.03)
i magnitude 20.30 (0.04) 20.30 (0.04) 20.33 (0.04)
z magnitude 20.25 (0.1) 20.25 (0.1) 20.26 (0.1)
G magnitude 20.13 (0.08) 20.19 20.13 (0.006)
BP magnitude 20.37 (0.08) 20.15
RP magnitude 20.00 (0.07) 20.02
Pan g magnitude 20.12 (0.01)
Pan r magnitude 20.19 (0.01)
Pan i magnitude 20.33 (0.01)
Pan z magnitude 20.39 (0.04)
Pan y magnitude 19.51 (0.08)
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.