V* DU Dra

All names: LSPM J1352+6524, G238-53, WDJ135211.00+652457.13, LP 66-262, V* DU Dra, WD 1350+656, SDSS J135210.99+652457.1, PG 1350+657, SDSS J135211.00+652457.1, TIC 159585994, WIRED J135211.00+652457.1, USNO-B1.0 1554-00158986, G 238-53, Gaia EDR3 1671329451713079808, 2MASS J13521100+6524569, Gaia DR3 1671329451713079808, FBS 1350+657, J1352+6524, Gaia DR2 1671329451713079808, SDSS J135210.99+652457.2, 1350+656, WD 1350+65, NLTT 35563, EGGR 538, FBS B 825

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Kilic et al. 2020 Leggett et al. 2018 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Tremblay et al. 2011 Mullally et al. 2008 Fontaine & Wesemael 1984 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 13 52 10.37 (0.03) 13 52 10.99 13 52 10.39 (0.04) 13 52 10.37 13 52 11.00 (0.03) 13 52 10.39 13 52 10.99 13 52 12.10 13 52 11.00 13 52 11.00
Declination 65 24 59.38 (0.02) 65 24 57.14 65 24 59.31 (0.03) 65 24 59.38 65 24 57.13 (0.02) 65 24 59.31 65 24 57.22 65 24 56.16 65 24 57.14 65 24 57.13
Spectral type DA DA DA4.4 DA DA DA DA DA4.1 DAV DA DA5 DA DA
Effective temperature [K] 11731.0 (50) 11733.0 (50) 11485.0 (527) 11594.0 12330.0 (194) 11980.0 (50) 12130.0 12130.0 12106.0 (95) 11890.0 11817.0 (53) 11608.0 (43) 11870.0 (56)
log(g) [cgs] 7.93 (0.004) 7.93 (0.004) 7.96 (0.05) 7.92 7.99 (0.05) 8.10 (0.02) 7.97 7.97 7.97 (0.007) 7.91 8.02 (0.02) 8.14 (0.02) 8.06 (0.02)
Mass [M] 0.567 (0.003) 0.564 (0.003) 0.579 (0.04) 0.556 0.6 (0.03) 0.67 (0.01) 0.588 (0.006) 0.683 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.3960 (0.05) 0.3671 0.4365
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] 16.59 (0.03) 17.13 (0.4) 16.54 (0.04) 16.59 16.59 (0.03) 16.54 (0.04)
Distance [pc] 60.28 (0.09) 58.38 (1) 60.47 (0.1) 62.00 60.28 60.28 (0.09) 60.47 (0.1)
Composition H H H H
Proper motion (right ascension) [mas/yr] -246.4512253 (0.03) -246.3238788 (0.07) -246.451 (0.03) -246.3238788 -247.1 -247.0
Proper motion (declination) [mas/yr] 141.073189 (0.03) 141.0813086 (0.06) 141.073 (0.03) 141.0813086 136.0 138.0
Variability VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.70
V magnitude 15.50 15.50 15.51
R magnitude 15.30
I magnitude
J magnitude 15.69 (0.07)
H magnitude 15.42 (0.1)
K magnitude 15.30 (0.2)
u magnitude 15.88 (0.005) 15.88 (0.005) 15.88 (0.005) 15.93 (0.01) 15.93 15.92 (0.01) 15.91 (0.02)
g magnitude 15.42 (0.003) 15.42 (0.003) 15.42 (0.003) 15.43 (0.01) 15.43 15.42 (0.01) 15.44 (0.01)
r magnitude 15.63 (0.003) 15.63 (0.003) 15.63 (0.003) 15.64 (0.01) 15.64 15.63 (0.02) 15.65 (0.01)
i magnitude 15.83 (0.004) 15.83 (0.004) 15.83 (0.004) 15.86 (0.02) 15.85 15.85 (0.02) 15.85 (0.02)
z magnitude 16.09 (0.007) 16.09 (0.007) 16.09 (0.007) 16.11 (0.03) 16.10 16.09 (0.03) 16.10 (0.02)
G magnitude 15.54 (0.002) 15.56 15.54 15.54 (0.003) 15.56
BP magnitude 15.55 (0.002) 15.55 15.55
RP magnitude 15.56 (0.003) 15.57 15.57
Pan g magnitude 15.48 (0.005)
Pan r magnitude 15.66 (0.002)
Pan i magnitude 15.87 (0.003)
Pan z magnitude 16.07 (0.005)
Pan y magnitude 16.22 (0.001)
E(B-V) 0.006
Period #1 [s] 122.2 206.0
Amplitude #1 [mma] 2

* 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.