SDSS J120918.83+470940.3

All names: Gaia DR3 1545933895776698240, SDSS J120918.83+470940.3, Gaia DR2 1545933895776698240, SDSS J120918.83+470940.38, Gaia EDR3 1545933895776698240

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad
Right ascension 12 09 18.78 (0.8) 12 09 18.83 12 09 18.78 (1) 12 09 18.86 (0.8)
Declination 47 09 40.24 (1) 47 09 40.24 47 09 40.25 (2) 47 09 40.48 (1)
Spectral type sdA: sdA: sdA: DA
Effective temperature [K] 7298.0 7097.0 6965.0 (116)
log(g) [cgs] 9.54 9.47 5.98 (0.3)
Mass [M] 1.381 1.344
log(Luminosity) [L]
Cooling age [Gyr] 2.3120 2.0130
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 13.13 (2) 14.41 (3) 13.13 (2)
Distance [pc] 76.14 (11) 69.41 (13) 76.14 (11)
Composition
Proper motion (right ascension) [mas/yr] -47.71607024 (1) -43.07059186 (2) -47.716 (1)
Proper motion (declination) [mas/yr] -15.19034962 (2) -15.83383183 (3) -15.19 (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 21.06 (0.08) 21.06 (0.07) 21.06 (0.07)
g magnitude 20.51 (0.02) 20.57 (0.03) 20.57 (0.03)
r magnitude 20.32 (0.03) 20.38 (0.03) 20.38 (0.03)
i magnitude 20.33 (0.04) 20.40 (0.04) 20.40 (0.04)
z magnitude 20.34 (0.1) 20.40 (0.1) 20.40 (0.1)
G magnitude 20.80 (0.1) 20.72 20.80 (0.01)
BP magnitude 20.50 (0.1) 20.55
RP magnitude 20.00 (0.1) 20.01
Pan g magnitude 20.52 (0.02)
Pan r magnitude 20.39 (0.02)
Pan i magnitude 20.36 (0.02)
Pan z magnitude 20.49 (0.04)
Pan y magnitude 20.48 (0.3)
E(B-V) 0.004

* 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.