SDSS J230726.66-084700.3

All names: Gaia EDR3 2607171317631314432, Gaia DR3 2607171317631314432, SDSS J230726.66-084700.2, WD 2304-090, SDSS J230726.66-084700.3, Gaia DR2 2607171317631314432

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Castanheira et al. 2006 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 07 26.67 (0.2) 23 07 26.66 23 07 26.67 (0.3) 23 07 26.67 23 07 26.66 (0.2) 23 07 26.66 23 07 26.21 23 07 26.66
Declination -08 47 00.36 (0.2) -08 47 00.36 -08 47 00.35 (0.4) -08 47 00.36 -08 47 00.30 (0.2) -08 47 00.31 -08 46 57.36 -08 47 00.29
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 10586.0 11250.0 (170) 10970.0 11163.0 (681) 11055.0 (107) 10933.0 (111)
log(g) [cgs] 8.00 8.38 (0.08) 8.21 7.97 (0.1) 8.19 (0.09) 8.19 (0.09)
Mass [M☉] 0.602 0.84 (0.06) 0.587 (0.09) 0.712 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.5189 0.8128
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] 4.05 (0.2) 4.34 (0.3) 4.05 4.05 (0.2)
Distance [pc] 246.79 (15) 230.33 (18) 246.79 246.79 (15)
Composition H H
Proper motion (right ascension) [mas/yr] 14.26280434 (0.3) 13.63677578 (0.7) 14.263 (0.3) 8.0
Proper motion (declination) [mas/yr] -3.780054634 (0.3) -5.306768029 (0.6) -3.78 (0.3) -8.2
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.55
V magnitude 18.90 18.89
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.22 (0.03) 19.22 (0.03) 19.32 (0.03) 19.32 19.30 (0.03)
g magnitude 18.78 (0.01) 18.78 (0.01) 18.84 (0.02) 18.83 18.83 (0.02)
r magnitude 18.88 (0.01) 18.88 (0.01) 18.96 (0.02) 18.95 18.93 (0.02)
i magnitude 19.04 (0.02) 19.04 (0.02) 19.11 (0.02) 19.11 19.10 (0.02)
z magnitude 19.26 (0.09) 19.26 (0.09) 19.26 (0.07) 19.26 19.23 (0.07)
G magnitude 18.81 (0.03) 18.84 18.81 18.81 (0.005)
BP magnitude 18.88 (0.03) 18.85
RP magnitude 18.78 (0.04) 18.76
Pan g magnitude 18.77 (0.01)
Pan r magnitude 18.90 (0.007)
Pan i magnitude 19.07 (0.006)
Pan z magnitude 19.27 (0.02)
Pan y magnitude 19.32 (0.04)
E(B-V) 0.028
Period #1 [s] 617.0
Amplitude #1 [mma] 12.5
Period #2 [s] 1212.2
Amplitude #2 [mma] 25.6

* 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.