WD 2154+007

All names: SDSS J215716.21+005819.2, Gaia EDR3 2681452295980225408, Gaia DR3 2681452295980225408, GALEX J215716.1+005820, SDSS J215716.21+005819.3, WD 2154+007, Gaia DR2 2681452295980225408

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 57 16.21 (0.1) 21 57 16.21 (0.2) 21 57 16.22 (0.1) 21 57 16.27
Declination 00 58 19.20 (0.1) 00 58 19.20 (0.2) 00 58 19.27 (0.1) 00 58 19.20
Spectral type DZ DZ: d
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.41 (0.2) 0.36 (0.2) 0.41 (0.2)
Distance [pc] 2421.54 (924) 2768.55 (1869) 2421.31 (924)
Composition
Proper motion (right ascension) [mas/yr] -1.113785817 (0.2) -0.913 (0.2) -1.114 (0.2)
Proper motion (declination) [mas/yr] -4.777924884 (0.1) -4.303 (0.3) -4.778 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.71 (0.04) 19.68
g magnitude 18.42 (0.007) 18.41
r magnitude 17.86 (0.006) 17.85
i magnitude 17.64 (0.007) 17.62
z magnitude 17.50 (0.02) 17.51
G magnitude 17.89 (0.02) 17.91 17.89 (0.003)
BP magnitude 18.30 (0.02) 18.29
RP magnitude 17.34 (0.01) 17.34
Pan g magnitude 18.34 (0.01)
Pan r magnitude 17.87 (0.004)
Pan i magnitude 17.67 (0.002)
Pan z magnitude 17.59 (0.004)
Pan y magnitude 17.53 (0.02)
E(B-V) 0.099

* 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.