SDSS J215724.97+000002.8

All names: SDSS J215724.97+000002.8, Gaia DR2 2680577222163016832, SDSS J215724.98+000002.8, Gaia DR3 2680577222163016832, Gaia EDR3 2680577222163016832

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Simbad Eisenstein et al. 2006
Right ascension 21 57 24.98 (1) 21 57 24.98 21 57 24.98 (2) 21 57 24.98 (1) 21 57 24.98
Declination 00 00 02.77 (1) 00 00 02.79 00 00 02.77 (3) 00 00 02.78 (1) 00 00 02.82
Spectral type sd SD_auto
Effective temperature [K] 12472.0 (241)
log(g) [cgs] 5.01 (0.02)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.25 (1)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 1.135894365 (1) 1.136 (1) 10.6
Proper motion (declination) [mas/yr] -0.600713988 (1) -0.601 (1) -1.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.11 (0.08) 21.06 (0.1) 21.10 (0.1)
g magnitude 19.93 (0.02) 19.88 (0.02) 19.91 (0.02)
r magnitude 20.10 (0.02) 20.06 (0.02) 20.09 (0.03)
i magnitude 20.28 (0.03) 20.27 (0.04) 20.34 (0.04)
z magnitude 20.37 (0.1) 20.46 (0.2) 20.44 (0.2)
G magnitude 19.98 (0.1) 20.03 19.98 (0.007)
BP magnitude 20.09 (0.1) 20.05
RP magnitude 19.67 (0.1) 19.70
Pan g magnitude 19.95 (0.01)
Pan r magnitude 20.05 (0.01)
Pan i magnitude 20.21 (0.01)
Pan z magnitude 20.27 (0.03)
Pan y magnitude 20.08 (0.2)
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.