SDSS J164242.20+464318.8

All names: Gaia DR2 1407060182710156800, SDSS J164242.19+464318.8, GALEX J164242.2+464319, SDSS J164242.20+464318.8, Gaia EDR3 1407060182710156800, SDSS J164242.18+464318.6, SDSS J164242.20+464318.83, Gaia DR3 1407060182710156800

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 16 42 42.17 (0.4) 16 42 42.19 16 42 42.17 (0.7) 16 42 42.20 (0.4)
Declination 46 43 19.00 (0.5) 46 43 18.67 46 43 18.99 (0.7) 46 43 18.55 (0.5)
Spectral type DA DA DA DA
Effective temperature [K] 8131.0 8941.0 (135)
log(g) [cgs] 7.68 8.41 (0.2)
Mass [M] 0.426 0.6829999999999999 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.7038
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] 3.05 (0.5) 2.80 (0.8) 3.04 (0.5)
Distance [pc] 328.40 (49) 357.14 (99) 328.41 (49)
Composition H
Proper motion (right ascension) [mas/yr] -18.25157174 (0.5) -17.65895393 (1) -18.252 (0.5)
Proper motion (declination) [mas/yr] 28.26497661 (0.6) 29.65284375 (2) 28.265 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.87 (0.07) 20.91 (0.07) 20.91 (0.07)
g magnitude 20.41 (0.02) 20.42 (0.03) 20.41 (0.02)
r magnitude 20.35 (0.02) 20.36 (0.03) 20.35 (0.03)
i magnitude 20.33 (0.03) 20.32 (0.05) 20.33 (0.03)
z magnitude 20.42 (0.1) 20.42 (0.1) 20.42 (0.1)
G magnitude 20.26 (0.1) 20.33 20.26 (0.006)
BP magnitude 20.31 (0.1) 20.32
RP magnitude 20.15 (0.08) 20.09
Pan g magnitude 20.32 (0.02)
Pan r magnitude 20.27 (0.01)
Pan i magnitude 20.33 (0.02)
Pan z magnitude 20.44 (0.05)
Pan y magnitude 20.00 (0.2)
E(B-V) 0.019

* 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.