SDSS J024002.92+002050.5

All names: Gaia EDR3 2498780602372360192, SDSS J024002.92+002050.50, SDSS J024002.92+002050.5, Gaia DR3 2498780602372360192, Gaia DR2 2498780602372360192

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 02 40 02.93 (0.3) 02 40 02.92 02 40 02.93 (0.3) 02 40 02.92 (0.3)
Declination 00 20 50.48 (0.3) 00 20 50.50 00 20 50.48 (0.4) 00 20 50.50 (0.3)
Spectral type DA DA
Effective temperature [K] 7436.0 (45)
log(g) [cgs] 6.53 (0.1)
Mass [M☉] 0.16228 (0.008)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.56 (0.4) -0.61 (0.5)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 4.078874383 (0.4) 5.552301733 (0.7) 4.079 (0.4)
Proper motion (declination) [mas/yr] -0.800821479 (0.4) -2.046347413 (0.7) -0.801 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.40 (0.06) 20.33 (0.05) 20.33 (0.05)
g magnitude 19.46 (0.01) 19.47 (0.02) 19.47 (0.02)
r magnitude 19.31 (0.01) 19.31 (0.02) 19.31 (0.02)
i magnitude 19.26 (0.02) 19.24 (0.02) 19.24 (0.02)
z magnitude 19.36 (0.06) 19.36 (0.06) 19.36 (0.06)
G magnitude 19.27 (0.04) 19.29 19.27 (0.005)
BP magnitude 19.49 (0.04) 19.48
RP magnitude 18.95 (0.05) 18.90
Pan g magnitude 19.46 (0.01)
Pan r magnitude 19.31 (0.009)
Pan i magnitude 19.28 (0.02)
Pan z magnitude 19.34 (0.02)
Pan y magnitude 19.30 (0.02)
E(B-V)

* 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.