SDSS J164143.31+483301.6

All names: GALEX J164143.3+483301, SDSS J164143.31+483301.5, Gaia EDR3 1410448259071414528, SDSS J164143.31+483301.6, Gaia DR2 1410448259071414528, WDJ164143.34+483301.47, Gaia DR3 1410448259071414528, SDSS J164143.26+483301.7, J1641+4833, SDSS J164143.26+483301.77

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Coutu et al. 2019 Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 16 41 43.24 (0.08) 16 41 43.31 16 41 43.34 16 41 43.24 (0.1) 16 41 43.24 16 41 43.34 (0.08) 16 41 43.24
Declination 48 33 01.81 (0.1) 48 33 01.58 48 33 01.47 48 33 01.80 (0.1) 48 33 01.81 48 33 01.47 (0.1) 48 33 01.80
Spectral type DQ DQ DQ DQ DQ DQ DQ
Effective temperature [K] 7645.0 (71) 7641.0 (56) 7652.0 (172) 7537.0 (16) 7543.0 (123)
log(g) [cgs] 7.99 (0.02) 8.01 (0.02) 8.01 8.00 (0) 7.95 (0.03)
Mass [M☉] 0.571 (0.01) 0.581 (0.01) 0.5795 0.547 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 1.3200 1.2600
log(H/He)
log(C/He) -5.89 -5.8 -5.8027 (0.04) -6.502000000000001 (0.09)
log(Ca/He)
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] 10.81 (0.1) 10.94 (0.1) 10.94 10.94 (0.1) 10.81 10.81 (0.1) 10.94 (0.1)
Distance [pc] 92.50 (0.8) 91.41 (1) 91.43 (1) 91.43 (1) 92.50 92.50 (0.8) 91.43 (1)
Composition He He He He
Proper motion (right ascension) [mas/yr] -62.53930747 (0.1) -62.98934966 (0.2) -62.539 (0.1) -62.98934966
Proper motion (declination) [mas/yr] 21.43423551 (0.1) 21.10957723 (0.4) 21.434 (0.1) 21.10957723
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.72 (0.04)
H magnitude
K magnitude
u magnitude 18.42 (0.02) 18.42 (0.02) 18.43 (0.02) 18.43 (0.02) 18.43 (0.02)
g magnitude 18.08 (0.006) 18.12 (0.02) 18.10 (0.006) 18.10 (0.006)
r magnitude 18.04 (0.007) 18.07 (0.01) 18.05 (0.007) 18.05 (0.007)
i magnitude 18.10 (0.008) 18.13 (0.01) 18.11 (0.008) 18.11 (0.008)
z magnitude 18.22 (0.02) 18.24 (0.03) 18.23 (0.02) 18.23 (0.02)
G magnitude 18.01 (0.01) 18.04 18.01 18.01 (0.003) 18.04
BP magnitude 18.14 (0.01) 18.12 18.12
RP magnitude 17.76 (0.02) 17.78 17.78
Pan g magnitude 18.11 (0.007) 18.11 (0.009)
Pan r magnitude 18.05 (0.007) 18.05 (0.006)
Pan i magnitude 18.13 (0.003) 18.13 (0.003)
Pan z magnitude 18.23 (0.009) 18.23 (0.009)
Pan y magnitude 18.36 (0.01) 18.36 (0.01)
E(B-V) 0.014

* 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.