V* KX Dra

All names: PG 1541+651, WISE J154144.90+645352.3, WD 1541+650, SDSS J154144.89+645352.6, J1541+6453, V* KX Dra, PG 1541+650, 2MASS J15414487+6453530, WDJ154144.89+645352.98, 1541+650, WISEA J154144.91+645352.3, Gaia EDR3 1641326979142898048, GALEX J154144.8+645352, Gaia DR2 1641326979142898048, Gaia DR3 1641326979142898048, TIC 458484139

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 Leggett et al. 2018 MWDD H Gaia DR2 Stilism Kilic et al. 2012 Gianninas et al. 2011 Vauclair et al. 2000 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 15 41 44.92 (0.02) 15 41 44.92 (0.03) 15 41 44.92 15 41 44.89 (0.02) 15 41 44.92 15 41 46.03
Declination 64 53 51.96 (0.02) 64 53 51.99 (0.03) 64 53 51.96 64 53 52.98 (0.02) 64 53 51.99 64 53 48.48
Spectral type DA DAV DA4.5 DAV DAV DA DA DA4.2 DAV DA5
Effective temperature [K] 11239.0 (133) 11239.0 (132) 11175.0 (472) 11257.0 11880.0 11880.0 (182) 11560.0 11479.0 (84) 11600.0
log(g) [cgs] 8.01 (0.01) 8.01 (0.01) 7.92 (0.05) 8.01 8.20 (0.05) 8.12 8.04 (0.008) 8.10
Mass [M] 0.608 (0.01) 0.607 (0.01) 0.556 (0.04) 0.608 0.72 (0.03) 0.625 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.4060 (0.05) 0.4461
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] 17.92 (0.02) 16.99 (0.5) 17.89 (0.03) 17.92 17.92 (0.02) 17.89 (0.03)
Distance [pc] 55.81 (0.08) 58.86 (2) 55.91 (0.1) 55.00 55.00 55.81 55.81 (0.08) 55.91 (0.1)
Composition H H H H
Proper motion (right ascension) [mas/yr] 12.67224569 (0.03) 12.77696437 (0.06) 12.672 (0.03) 12.77696437
Proper motion (declination) [mas/yr] -63.57924727 (0.03) -63.57107713 (0.06) -63.579 (0.03) -63.57107713
Variability VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk) yes
Binarity
B magnitude 15.70
V magnitude 15.60 15.70
R magnitude
I magnitude
J magnitude 15.62 (0.01)
H magnitude 15.59 (0.03)
K magnitude 15.45 (0.05)
u magnitude 15.95 (0.005) 15.95 (0.005)
g magnitude 15.54 (0.003) 15.54 (0.003)
r magnitude 15.64 (0.003) 15.64 (0.003)
i magnitude 15.83 (0.004) 15.83 (0.004)
z magnitude 16.08 (0.007) 16.08 (0.007)
G magnitude 15.58 (0.006) 15.60 15.58 15.58 (0.003) 15.60
BP magnitude 15.59 (0.006) 15.58 15.58
RP magnitude 15.56 (0.004) 15.56 15.56
Pan g magnitude 15.52 (0.008)
Pan r magnitude 15.67 (0.004)
Pan i magnitude 15.90 (0.007)
Pan z magnitude 16.06 (0.008)
Pan y magnitude 16.22 (0.01)
E(B-V) 0.007
Period #1 [s] 467.0
Amplitude #1 [mma] 3
Period #2 [s] 564.0
Amplitude #2 [mma] 15.0
Period #3 [s] 689.0
Amplitude #3 [mma] 45.0
Period #4 [s] 757.0
Amplitude #4 [mma] 14

* 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.