SDSS J172741.23+440539.8

All names: Gaia DR3 1360704188367307264, SDSS J172741.23+440539.8, SDSS J172741.22+440539.7, GALEX J172741.2+440539, Gaia DR2 1360704188367307264, SDSS J172741.23+440539.7, Gaia EDR3 1360704188367307264

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 27 41.23 (0.2) 17 27 41.23 17 27 41.23 (0.2) 17 27 41.23 (0.2) 17 27 41.23
Declination 44 05 39.60 (0.2) 44 05 39.72 44 05 39.61 (0.3) 44 05 39.83 (0.2) 44 05 39.77
Spectral type DA DA DA DA
Effective temperature [K] 14630.0 18116.0 (293)
log(g) [cgs] 7.88 7.94 (0.06)
Mass [M☉] 0.543 0.588 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1757
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] 2.05 (0.2) 2.35 (0.3) 2.05 (0.2)
Distance [pc] 487.84 (51) 425.99 (54) 487.85 (51)
Composition H
Proper motion (right ascension) [mas/yr] -0.996831507 (0.2) -0.791014744 (0.5) -0.997 (0.2)
Proper motion (declination) [mas/yr] -14.09440389 (0.2) -13.57049306 (0.6) -14.094 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.29 (0.02) 19.29 (0.02) 19.34 (0.03)
g magnitude 19.15 (0.01) 19.15 (0.01) 19.14 (0.02)
r magnitude 19.44 (0.01) 19.44 (0.01) 19.50 (0.02)
i magnitude 19.78 (0.02) 19.78 (0.02) 19.76 (0.02)
z magnitude 20.05 (0.09) 20.05 (0.09) 19.92 (0.07)
G magnitude 19.32 (0.03) 19.37 19.32 (0.004)
BP magnitude 19.31 (0.03) 19.18
RP magnitude 19.50 (0.05) 19.54
Pan g magnitude 19.17 (0.009)
Pan r magnitude 19.50 (0.01)
Pan i magnitude 19.79 (0.02)
Pan z magnitude 20.02 (0.04)
Pan y magnitude 19.95 (0.03)
E(B-V) 0.030

* 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.