SDSS J081812.05-001708.7

All names: Gaia DR3 3077380802441054080, Gaia EDR3 3077380802441054080, SDSS J081812.05-001708.7, SDSS J081812.05-001708.79, Gaia DR2 3077380802441054080

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 08 18 12.05 (0.4) 08 18 12.05 08 18 12.05 (0.5) 08 18 12.05 (0.4)
Declination -00 17 08.82 (0.3) -00 17 08.78 -00 17 08.82 (0.4) -00 17 08.79 (0.3)
Spectral type sdA sdA
Effective temperature [K] 7816.0 (65)
log(g) [cgs] 5.56 (0.2)
Mass [M☉] 0.1505 (0.0006)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.02 (0.6) -1.05 (0.7)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -0.339108393 (0.5) -1.027181114 (1) -0.339 (0.5)
Proper motion (declination) [mas/yr] -1.897169448 (0.4) -1.230795704 (0.8) -1.897 (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 21.28 (0.1) 21.34 (0.1) 21.34 (0.1)
g magnitude 20.23 (0.02) 20.30 (0.02) 20.30 (0.02)
r magnitude 20.16 (0.02) 20.33 (0.02) 20.33 (0.02)
i magnitude 20.00 (0.03) 20.11 (0.03) 20.11 (0.03)
z magnitude 19.93 (0.1) 20.04 (0.1) 20.04 (0.1)
G magnitude 20.11 (0.05) 20.14 20.11 (0.006)
BP magnitude 20.26 (0.05) 20.44
RP magnitude 19.92 (0.07) 19.79
Pan g magnitude 20.29 (0.03)
Pan r magnitude 20.15 (0.01)
Pan i magnitude 20.14 (0.02)
Pan z magnitude 20.12 (0.02)
Pan y magnitude 20.15 (0.1)
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.