SDSS J093839.94+170357.7

All names: SDSS J093839.94+170357.7, Gaia DR3 620704657823586048, Gaia EDR3 620704657823586048, SDSS J093839.93+170357.7, Gaia DR2 620704657823586048, SDSS J093839.94+170357.78, GALEX J093839.9+170358

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 09 38 39.88 (0.4) 09 38 39.93 09 38 39.88 (0.7) 09 38 39.97 (0.4)
Declination 17 03 57.78 (0.4) 17 03 57.78 17 03 57.78 (0.6) 17 03 57.84 (0.4)
Spectral type DA DA DA DA
Effective temperature [K] 6765.0 6674.0 (116)
log(g) [cgs] 8.02 7.04 (0.3)
Mass [M] 0.6 0.242 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 1.6940
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] 4.90 (0.5) 5.18 (0.8) 4.90 (0.5)
Distance [pc] 204.16 (21) 193.00 (29) 204.16 (21)
Composition H
Proper motion (right ascension) [mas/yr] -85.27329688 (0.6) -85.02175368 (1) -85.273 (0.6)
Proper motion (declination) [mas/yr] -3.575675189 (0.5) -4.782975153 (1) -3.576 (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 20.81 (0.07) 20.81 (0.07) 20.81 (0.07)
g magnitude 20.20 (0.02) 20.22 (0.02) 20.20 (0.02)
r magnitude 19.97 (0.02) 20.01 (0.02) 19.97 (0.02)
i magnitude 19.95 (0.03) 19.98 (0.03) 19.95 (0.03)
z magnitude 19.91 (0.08) 19.91 (0.07) 19.91 (0.08)
G magnitude 20.00 (0.06) 20.05 20.00 (0.005)
BP magnitude 20.18 (0.06) 20.16
RP magnitude 19.59 (0.04) 19.52
Pan g magnitude 20.21 (0.02)
Pan r magnitude 20.03 (0.02)
Pan i magnitude 19.97 (0.01)
Pan z magnitude 20.01 (0.06)
Pan y magnitude 19.84 (0.2)
E(B-V) 0.015

* 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.