SDSS J152150.27+420703.5

All names: SDSS J152150.27+420703.5, Gaia DR3 1393883021183489920, Gaia DR2 1393883021183489920, Gaia EDR3 1393883021183489920, SDSS J152150.27+420703.57

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 15 21 50.27 (0.2) 15 21 50.27 15 21 50.27 (0.3) 15 21 50.27 (0.2)
Declination 42 07 03.62 (0.3) 42 07 03.56 42 07 03.62 (0.3) 42 07 03.59 (0.3)
Spectral type sdA sdA
Effective temperature [K] 7201.0 (79)
log(g) [cgs] 5.73 (0.3)
Mass [M☉] 0.15068 (0.0006)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.17 (0.3) -0.05 (0.4)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -3.969901196 (0.3) -4.7495855 (0.6) -3.97 (0.3)
Proper motion (declination) [mas/yr] 1.622297597 (0.5) 1.958753644 (0.8) 1.622 (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 20.69 (0.06) 20.66 (0.07) 20.66 (0.07)
g magnitude 20.03 (0.02) 20.03 (0.02) 20.03 (0.02)
r magnitude 19.83 (0.02) 19.82 (0.03) 19.82 (0.03)
i magnitude 19.71 (0.02) 19.72 (0.04) 19.72 (0.04)
z magnitude 19.76 (0.09) 19.78 (0.09) 19.78 (0.09)
G magnitude 19.79 (0.05) 19.84 19.79 (0.005)
BP magnitude 20.00 (0.05) 20.09
RP magnitude 19.36 (0.04) 19.40
Pan g magnitude 19.99 (0.02)
Pan r magnitude 19.79 (0.02)
Pan i magnitude 19.75 (0.01)
Pan z magnitude 19.75 (0.05)
Pan y magnitude 19.86 (0.05)
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.