SDSS J132159.59+334507.1

All names: LSPM J1321+3345, USNO-B1.0 1237-00222575, Gaia DR3 1472821908743764096, SDSS J132159.58+334507.1, LP 268-83, NLTT 33868, WDJ132159.67+334507.95, Gaia EDR3 1472821908743764096, GALEX J132159.5+334507, J1321+3345, SDSS J132159.59+334507.1, Gaia DR2 1472821908743764096

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 21 59.36 (0.07) 13 21 59.59 13 21 59.37 (0.09) 13 21 59.36 13 21 59.67 (0.07) 13 21 59.37 13 21 59.59
Declination 33 45 05.04 (0.07) 33 45 07.13 33 45 05.13 (0.09) 33 45 05.04 33 45 07.94 (0.07) 33 45 05.13 33 45 07.15
Spectral type DA DA DA DA DA DA DA DA
Effective temperature [K] 8826.0 (86) 8930.0 (62) 9021.0 (68) 8933.0 8987.0 (165) 8856.0 (40)
log(g) [cgs] 8.55 (0.02) 8.58 (0.01) 8.60 (0.01) 8.59 8.58 (0.03) 8.75 (0.05)
Mass [M☉] 0.95 (0.01) 0.971 (0.01) 0.984 (0.01) 0.974 0.971 (0.02) 1.042 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 2.5300 2.3850
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] 13.60 (0.1) 13.73 (0.1) 13.73 (0.1) 13.60 13.60 (0.1) 13.73 (0.1)
Distance [pc] 73.52 (0.6) 72.83 (0.8) 72.84 (0.8) 73.52 73.52 (0.6) 72.84 (0.8)
Composition H H H
Proper motion (right ascension) [mas/yr] -238.4835241 (0.08) -238.3620567 (0.2) -238.484 (0.08) -238.3620567
Proper motion (declination) [mas/yr] -181.4830948 (0.09) -181.7472511 (0.2) -181.483 (0.1) -181.7472511
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.30
V magnitude
R magnitude 17.70
I magnitude
J magnitude 17.53 (0.04)
H magnitude 17.41 (0.05)
K magnitude 17.39 (0.08)
u magnitude 18.19 (0.01) 18.20 (0.01) 18.19 (0.01) 18.19 (0.01) 18.21 (0.02)
g magnitude 17.86 (0.006) 17.86 (0.006) 17.86 (0.006) 17.87 (0.02)
r magnitude 17.87 (0.007) 17.87 (0.007) 17.87 (0.007) 17.86 (0.01)
i magnitude 17.94 (0.008) 17.94 (0.008) 17.94 (0.008) 17.94 (0.02)
z magnitude 18.09 (0.02) 18.09 (0.02) 18.09 (0.02) 18.07 (0.03)
G magnitude 17.81 (0.008) 17.83 17.81 17.81 (0.003) 17.83
BP magnitude 17.91 (0.008) 17.89 17.89
RP magnitude 17.65 (0.01) 17.64 17.64
Pan g magnitude 17.88 (0.003) 17.88 (0.003)
Pan r magnitude 17.88 (0.006) 17.88 (0.006)
Pan i magnitude 17.95 (0.005) 17.95 (0.004)
Pan z magnitude 18.09 (0.02) 18.09 (0.01)
Pan y magnitude 18.19 (0.03) 18.19 (0.03)
E(B-V) 0.004

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit




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.