SDSS J153930.32+524819.3

All names: J1539+5248, SDSS J153930.32+524819.33, SDSS J153930.32+524819.3

Parameter	Unit	Pan-STARRS DR1	SDSS DR12	Coutu et al. 2019	Stilism	Kepler et al. 2016	Simbad
Right ascension			15 39 30.32	15 39 30.32			15 39 30.32
Declination			52 48 19.08	52 48 19.33			52 48 19.33
Spectral type				DZ		DZ	DZ
Effective temperature	[K]			6995.0 (422)		8060.0 (198)
log(g)	[cgs]			8.00		8.00 (0)
Mass	[M_☉]
log(Luminosity)	[L_☉]
Cooling age	[Gyr]			0.0000
log(H/He)				<-3.897
log(C/He)
log(Ca/He)				-10.4541 (0.2)		-9.43
log(Ca/H)

log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax	[mas]
Distance	[pc]			330.97 (32)
Composition				He		He
Proper motion (right ascension)	[mas/yr]
Proper motion (declination)	[mas/yr]
Variability
Magnetic
B_d	[MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude			21.66 (0.1)			21.60 (0.1)	21.60 (0.1)
g magnitude			21.19 (0.04)			21.25 (0.04)	21.25 (0.04)
r magnitude			21.07 (0.05)			21.13 (0.05)	21.13 (0.05)
i magnitude			20.96 (0.06)			21.01 (0.06)	21.01 (0.06)
z magnitude			20.95 (0.2)			21.02 (0.2)	21.02 (0.2)
G magnitude
BP magnitude
RP magnitude
Pan g magnitude		21.14 (0.06)
Pan r magnitude		21.09 (0.05)
Pan i magnitude		21.11 (0.04)
Pan z magnitude		21.00 (0.04)
Pan y magnitude
E(B-V)					0.019

Spectra