SDSS J220309.07+184504.9

All names: Gaia DR3 1779527889877076864, SDSS J220309.07+184504.90, Gaia DR2 1779527889877076864, Gaia EDR3 1779527889877076864, SDSS J220309.07+184504.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad
Right ascension 22 03 09.07 (0.8) 22 03 09.07 22 03 09.07 (1) 22 03 09.07 (0.8)
Declination 18 45 04.88 (0.8) 18 45 04.89 18 45 04.88 (1) 18 45 04.91 (0.8)
Spectral type sdA sdA sdA sdA
Effective temperature [K] 6675.0 6482.0 7964.0 (68)
log(g) [cgs] 7.07 6.90 5.81 (0.2)
Mass [M] 0.21 0.151 0.15138 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.7207
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.24 (0.9) 2.94 (2) 1.24 (0.9)
Distance [pc] 804.44 (610) 340.70 (177) 804.44 (610)
Composition
Proper motion (right ascension) [mas/yr] -0.733104881 (1) -1.620209751 (1) -0.733 (1)
Proper motion (declination) [mas/yr] -1.810105529 (1) -2.584413888 (2) -1.81 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.91 (0.1) 20.89 (0.1) 20.89 (0.1)
g magnitude 20.26 (0.02) 20.29 (0.03) 20.29 (0.03)
r magnitude 20.16 (0.03) 20.18 (0.03) 20.18 (0.03)
i magnitude 20.11 (0.04) 20.12 (0.04) 20.12 (0.04)
z magnitude 20.40 (0.2) 20.39 (0.2) 20.39 (0.2)
G magnitude 20.14 (0.1) 20.18 20.14 (0.009)
BP magnitude 20.40 (0.1) 20.34
RP magnitude 19.90 (0.09) 19.83
Pan g magnitude 20.24 (0.01)
Pan r magnitude 20.12 (0.01)
Pan i magnitude 20.15 (0.02)
Pan z magnitude 20.12 (0.04)
Pan y magnitude 19.94 (0.004)
E(B-V) 0.046

* 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.