PG 1507+021

All names: SDSS J150956.90+015607.9, PG 1507+021, WD 1507+021, PSO J150956.904+015607.840, Gaia DR2 4420242631507777920, SDSS J150956.90+015607.98

Parameter	Unit	MWDD H	Pan-STARRS DR1	Gaia DR2	Kepler et al. 2015	SDSS DR10	Simbad
Right ascension				15 09 56.87 (0.08)		15 09 56.93	15 09 56.97
Declination				01 56 07.62 (0.07)		01 56 08.51	01 56 08.48
Spectral type		DA			DA		DA2.5
Effective temperature	[K]	16799.0			21532.0 (60)
log(g)	[cgs]	7.74			8.03 (0.01)
Mass	[M_☉]	0.48100000000000004			0.6409999999999999 (0.005)
log(Luminosity)	[L_☉]
Cooling age	[Gyr]	0.0848
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)

log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax	[mas]			6.92 (0.1)
Distance	[pc]			144.54 (2)
Composition		H
Proper motion (right ascension)	[mas/yr]			-65.7533510826 (0.1)			-100.0
Proper motion (declination)	[mas/yr]			-62.0730522211 (0.1)			-58.0
Variability
Magnetic
B_d	[MG]
Infrared excess (disk)
Binarity
B magnitude							16.10
V magnitude
R magnitude							16.40
I magnitude
J magnitude							16.60
H magnitude							16.45
K magnitude
u magnitude					16.45 (0.02)	16.45 (0.007)	16.45
g magnitude					16.36 (0.01)	16.34 (0.004)	16.34
r magnitude					16.72 (0.02)	16.69 (0.004)	16.69
i magnitude					17.01 (0.02)	16.98 (0.005)	16.98
z magnitude					17.29 (0.02)	17.27 (0.01)	17.27
G magnitude				16.54
BP magnitude				16.44
RP magnitude				16.67
Pan g magnitude			16.38 (0.004)
Pan r magnitude			16.69 (0.003)
Pan i magnitude			16.99 (0.002)
Pan z magnitude			17.24 (0.007)
Pan y magnitude			17.41 (0.01)

Spectra