V* CW Boo

All names: PG 1456+103, Gaia EDR3 1180021786172275712, Gaia DR2 1180021786172275712, GALEX J145832.6+100818, SDSS J145832.63+100818.1, WD 1456+103, SDSS J145832.63+100818.10, Gaia DR3 1180021786172275712, V* CW Boo

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Bergeron et al. 2011 Voss et al. 2007 Beauchamp et al. 1999 Vincent et al. 2024 Simbad White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 58 32.61 (0.05) 14 58 32.63 14 58 32.61 (0.09) 14 58 32.61 14 58 32.64 (0.05) 14 58 32.35 14 58 32.63
Declination 10 08 17.97 (0.05) 10 08 18.14 10 08 17.97 (0.07) 10 08 17.97 10 08 18.11 (0.05) 10 08 15.00 10 08 18.15
Spectral type DBA DBA DBA DB DBA DBV DB3 DBA DB
Effective temperature [K] 24370.0 23738.0 19334.0 26695.0 (322) 24080.0 (1199) 21533.0 22400.0 22687.0 (1659) 22400.0 27861.0 (277)
log(g) [cgs] 7.87 8.00 7.85 7.80 (0.03) 7.91 (0.08) 7.90 7.91 7.97 (0.02) 7.98 (0.03)
Mass [M] 0.537 0.606 0.514 0.56 (0.04) 0.549 0.587 (0.02)
log(Luminosity) [L] -1.24
Cooling age [Gyr] 0.0580 0.0257 0.4040
log(H/He) -3.192 -2.92 (0.03) -3.24 (0.1) -3.42
log(C/He)
log(Ca/He) <-4.0
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] 6.40 (0.06) 6.41 (0.1) 6.40 6.40 (0.06)
Distance [pc] 156.32 (1) 156.04 (3) 188.00 129.00 156.32 156.32 (1)
Composition He He He
Proper motion (right ascension) [mas/yr] -28.7100296 (0.06) -28.99092463 (0.2) -28.71 (0.07)
Proper motion (declination) [mas/yr] -8.862899443 (0.06) -8.798080676 (0.1) -8.863 (0.06)
Variability VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.89 15.89 15.89
V magnitude 15.89
R magnitude
I magnitude
J magnitude
H magnitude 17.04 (0.03)
K magnitude 17.09 (0.05)
u magnitude 16.09 (0.005) 16.09 (0.005) 16.09 (0.02)
g magnitude 16.25 (0.004) 16.25 (0.004) 16.28 (0.02)
r magnitude 16.66 (0.004) 16.66 (0.004) 16.66 (0.01)
i magnitude 16.93 (0.005) 16.93 (0.005) 16.95 (0.01)
z magnitude 17.22 (0.01) 17.22 (0.01) 17.22 (0.02)
G magnitude 16.45 (0.006) 16.48 16.45 16.45 (0.003)
BP magnitude 16.35 (0.006) 16.31
RP magnitude 16.63 (0.007) 16.62
Pan g magnitude 16.31 (0.003)
Pan r magnitude 16.66 (0.003)
Pan i magnitude 16.95 (0.008)
Pan z magnitude 17.19 (0.006)
Pan y magnitude 17.34 (0.01)
E(B-V) 0.019

* Constant surface field

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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.