SDSS J091856.11+411317.9

All names: WD 0915+414, WIRED J091856.12+411317.8, SDSS J091856.12+411317.9, Gaia DR3 815778980032866432, Gaia EDR3 815778980032866432, [HHD2009] SDSS J0918+4113, SDSS J091856.11+411317.9, Gaia DR2 815778980032866432, SDSS J091856.12+411317.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 18 56.11 (0.3) 09 18 56.13 09 18 56.11 (0.3) 09 18 56.12 09 18 56.13 (0.3) 09 18 56.12 09 18 56.02 09 18 56.12
Declination 41 13 17.68 (0.2) 41 13 17.96 41 13 17.69 (0.3) 41 13 17.80 41 13 18.05 (0.2) 41 13 17.93 41 13 13.80 41 13 17.88
Spectral type DA+M DA+M DA+M DA+M DA d DAH:M DA+MS
Effective temperature [K] 7652.0 12536.0 (3159) 10413.0 (170) 10258.0 (173)
log(g) [cgs] 6.51 8.20 (0.5) 8.14 (0.2) 8.12 (0.2)
Mass [M] 0.104 0.73 (0.3)
log(Luminosity) [L]
Cooling age [Gyr]
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] 2.67 (0.4) 2.12 (0.5) 2.67 (0.4)
Distance [pc] 373.88 (50) 470.83 (121) 892.00 (108) 373.89 (50)
Composition H
Proper motion (right ascension) [mas/yr] -12.15191042 (0.3) -13.54799065 (0.7) -12.152 (0.3) -3.8
Proper motion (declination) [mas/yr] -23.15857868 (0.3) -23.39441566 (0.5) -23.159 (0.3) -25.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.02 (0.04) 20.08 20.02 (0.04) 20.08 (0.06) 20.08 20.04 (0.06)
g magnitude 19.67 (0.01) 19.70 19.67 (0.01) 19.70 (0.06) 19.70 19.67 (0.06)
r magnitude 19.78 (0.02) 19.78 19.78 (0.02) 19.78 (0.03) 19.78 19.77 (0.03)
i magnitude 19.61 (0.02) 19.60 19.61 (0.02) 19.60 (0.03) 19.60 19.59 (0.03)
z magnitude 19.12 (0.04) 19.07 19.12 (0.04) 19.07 (0.06) 19.07 19.08 (0.06)
G magnitude 19.57 (0.04) 19.60 19.57 (0.004)
BP magnitude 19.82 (0.04) 19.82
RP magnitude 19.18 (0.04) 19.22
Pan g magnitude 19.70 (0.01)
Pan r magnitude 19.78 (0.01)
Pan i magnitude 19.62 (0.01)
Pan z magnitude 19.23 (0.01)
Pan y magnitude 18.90 (0.03)
E(B-V) 0.021

* 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.