KUV 12474+3105

All names: SDSS J124949.36+304828.1, KUV 12474+3105, Gaia DR3 1465305681615674624, GALEX J124949.4+304827, Gaia DR2 1465305681615674624, WD 1247+310, Gaia EDR3 1465305681615674624, 1247+310

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Green et al. 2015 Gianninas et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 49 49.31 (0.1) 12 49 49.31 (0.1) 12 49 49.31 12 49 49.39 (0.1) 12 49 49.32
Declination 30 48 27.82 (0.08) 30 48 27.84 (0.1) 30 48 27.82 30 48 28.18 (0.08) 30 48 22.32
Spectral type DA DA DA DA4.1 DA
Effective temperature [K] 11550.0 12110.0 12370.0 (244) 11925.0 (389)
log(g) [cgs] 8.19 8.43 8.39 (0.06) 8.26 (0.04)
Mass [M] 0.718 0.85 (0.04) 0.769 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.5393
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] 6.32 (0.1) 6.20 (0.2) 6.32 6.32 (0.1)
Distance [pc] 158.34 (3) 161.39 (4) 100.00 158.34 158.34 (3)
Composition H H
Proper motion (right ascension) [mas/yr] -64.35214701 (0.1) -64.72410395 (0.2) -64.352 (0.1)
Proper motion (declination) [mas/yr] -22.0939628 (0.1) -22.04428899 (0.2) -22.094 (0.1)
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.30
V magnitude 17.20 17.20
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.45 (0.03)
g magnitude 18.05 (0.03)
r magnitude 18.20 (0.03)
i magnitude 18.41 (0.02)
z magnitude 18.57 (0.04)
G magnitude 18.09 (0.01) 18.12 18.09 18.09 (0.003)
BP magnitude 18.12 (0.01) 18.10
RP magnitude 18.11 (0.02) 18.10
Pan g magnitude 18.03 (0.008)
Pan r magnitude 18.19 (0.004)
Pan i magnitude 18.37 (0.005)
Pan z magnitude 18.60 (0.009)
Pan y magnitude 18.72 (0.03)
E(B-V) 0.006
Period #1 [s] 364.6
Amplitude #1 [mma] 2

* 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.