WD J0916+3855

All names: LAMOST J091635.06+385546.2, SDSS J091635.07+385546.2, WD 0913+391, WDJ091635.08+385546.31, Gaia EDR3 812202337427426304, J0916+3855, Gaia DR2 812202337427426304, Gaia DR3 812202337427426304

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Tremblay et al. 2011 Castanheira et al. 2007 Vincent et al. 2024 Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 16 35.02 (0.05) 09 16 35.07 09 16 35.02 (0.07) 09 16 35.02 09 16 35.02 09 16 35.07 09 16 34.46 09 16 35.07
Declination 38 55 45.51 (0.04) 38 55 46.24 38 55 45.53 (0.07) 38 55 45.51 38 55 45.53 38 55 46.22 38 55 44.76 38 55 46.22
Spectral type DA DA DA DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 11667.0 (98) 11655.0 (98) 11553.0 11640.0 (60) 11320.0 11435.0 (117) 11413.0 (47) 11380.0 (49)
log(g) [cgs] 8.05 (0.01) 8.08 (0.01) 8.07 8.15 (0.03) 8.04 8.02 (0.01) 8.10 (0.03) 8.19 (0.02)
Mass [M] 0.636 (0.008) 0.652 (0.01) 0.645 0.7 (0.02) 0.617 (0.01) 0.713 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.4534 0.5129
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] 10.98 (0.07) 11.18 (0.09) 10.98 11.18 (0.09)
Distance [pc] 91.05 (0.5) 89.47 (0.7) 91.05 89.47 (0.7)
Composition H H H
Proper motion (right ascension) [mas/yr] -43.16427996 (0.06) -43.08000344 (0.1) -43.08 -44.3
Proper motion (declination) [mas/yr] -50.12561914 (0.06) -50.21894662 (0.1) -50.219 -49.0
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 16.60
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.95 (0.007) 16.95 (0.007) 16.93 (0.02) 16.92 16.94 (0.02)
g magnitude 16.53 (0.003) 16.53 (0.003) 16.56 (0.02) 16.55 16.55 (0.02)
r magnitude 16.67 (0.004) 16.67 (0.004) 16.69 (0.02) 16.68 16.68 (0.02)
i magnitude 16.88 (0.005) 16.88 (0.005) 16.89 (0.01) 16.88 16.88 (0.02)
z magnitude 17.13 (0.01) 17.13 (0.01) 17.13 (0.02) 17.12 17.13 (0.02)
G magnitude 16.62 (0.008) 16.64 16.62 16.64
BP magnitude 16.62 (0.008) 16.61 16.61
RP magnitude 16.62 (0.007) 16.62 16.62
Pan g magnitude 16.57 (0.006)
Pan r magnitude 16.73 (0.004)
Pan i magnitude 16.94 (0.003)
Pan z magnitude 17.14 (0.003)
Pan y magnitude 17.28 (0.01)
E(B-V) 0.003
Period #1 [s] 238.1
Amplitude #1 [mma] 10.8
Period #2 [s] 447.7
Amplitude #2 [mma] 14.4
Period #3 [s] 485.1
Amplitude #3 [mma] 32.9
Period #4 [s] 747.2
Amplitude #4 [mma] 9.1

* 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.