SDSS J172833.90+262557.2

All names: Gaia DR3 4570868955646893184, Gaia EDR3 4570868955646893184, Gaia DR2 4570868955646893184, SDSS J172833.88+262557.3, SDSS J172833.90+262557.2, GALEX J172833.9+262557, SDSS J172833.89+262557.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 28 33.93 (0.3) 17 28 33.90 17 28 33.93 (0.5) 17 28 33.88 (0.3) 17 28 33.90
Declination 26 25 56.42 (0.4) 26 25 57.20 26 25 56.45 (0.5) 26 25 57.47 (0.4) 26 25 57.22
Spectral type DC: DC: DC DC: DC
Effective temperature [K] 14773.0 14230.0 14217.0 (409)
log(g) [cgs] 8.82 8.78 9.86 (0.1)
Mass [M] 1.112 1.079
log(Luminosity) [L]
Cooling age [Gyr] 0.8885 0.9212
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.70 (0.5) 3.03 (0.7) 2.70 (0.5)
Distance [pc] 370.03 (73) 330.19 (72) 370.03 (73)
Composition
Proper motion (right ascension) [mas/yr] 42.50585983 (0.5) 42.58822836 (1) 42.506 (0.5)
Proper motion (declination) [mas/yr] -65.86729167 (0.5) -66.9886826 (1) -65.867 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.08 (0.04) 20.08 (0.04) 20.09 (0.04)
g magnitude 20.19 (0.02) 20.19 (0.02) 20.20 (0.02)
r magnitude 20.42 (0.03) 20.43 (0.03) 20.53 (0.03)
i magnitude 20.78 (0.05) 20.78 (0.05) 20.75 (0.05)
z magnitude 20.83 (0.2) 20.83 (0.2) 21.21 (0.2)
G magnitude 20.34 (0.06) 20.38 20.34 (0.006)
BP magnitude 20.34 (0.06) 20.29
RP magnitude 20.27 (0.1) 20.33
Pan g magnitude 20.23 (0.02)
Pan r magnitude 20.45 (0.01)
Pan i magnitude 20.76 (0.02)
Pan z magnitude 20.61 (0.05)
Pan y magnitude
E(B-V) 0.028

* 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.