WD 0139+003

All names: WD 0139+003, ULAS J014221.79+003550.9, Gaia DR2 2510249711240400640, Gaia DR3 2510249711240400640, Gaia EDR3 2510249711240400640

Parameter	Unit	Gaia EDR3	Pan-STARRS DR1	SDSS DR12	Gaia DR2	Stilism	Simbad	White Dwarf Catalog (McCook & Sion 1999)
Right ascension		01 42 21.78 (0.5)		01 42 21.79	01 42 21.78 (1)		01 42 21.78 (0.5)	01 42 21.00
Declination		00 35 50.62 (0.5)		00 35 50.72	00 35 50.62 (0.7)		00 35 50.71 (0.5)	00 35 48.48
Spectral type							DA	DA8.5
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]	2.01 (0.7)			0.89 (2)		2.01 (0.7)
Distance	[pc]	496.77 (171)			1127.58 (1927)		496.77 (171)
Composition
Proper motion (right ascension)	[mas/yr]	3.560554049 (0.6)			2.024509595 (1)		3.561 (0.6)
Proper motion (declination)	[mas/yr]	-5.656695666 (0.6)			-7.010409487 (0.9)		-5.657 (0.6)
Variability
Magnetic
B_d	[MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude							18.75 (0.09)
H magnitude							18.94 (0.2)
K magnitude
u magnitude				21.08 (0.07)			20.96 (0.09)	20.96
g magnitude				20.26 (0.02)			20.26 (0.02)	20.26
r magnitude				19.88 (0.02)			19.86 (0.02)	19.86
i magnitude				19.73 (0.02)			19.68 (0.03)	19.68
z magnitude				19.77 (0.07)				19.68
G magnitude		19.86 (0.05)			19.92		19.86 (0.005)
BP magnitude		20.08 (0.05)			19.74
RP magnitude		19.41 (0.05)			19.44
Pan g magnitude			20.15 (0.01)
Pan r magnitude			19.85 (0.01)
Pan i magnitude			19.70 (0.01)
Pan z magnitude			19.68 (0.03)
Pan y magnitude			19.61 (0.1)
E(B-V)						0.028

Spectra