SDSS J112002.82+442829.2

All names: SDSS J112002.74+442828.3, USNO-B1.0 1344-00232451, WD 1117+447, PSO J112002.751+442828.503, Gaia DR2 784902902522308736, SDSS J112002.74+442828.32

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2016 SDSS DR12 Simbad
Right ascension 11 20 02.72 (0.3) 11 20 02.83 11 20 02.83
Declination 44 28 28.17 (0.2) 44 28 29.30 44 28 29.28
Spectral type DA DA DA
Effective temperature [K] 12148.0 15451.0 (109)
log(g) [cgs] 7.81 7.95 (0.02)
Mass [M☉] 0.502 0.5870000000000001 (0.01)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.2834
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] 3.52 (0.3)
Distance [pc] 283.84 (23)
Composition H
Proper motion (right ascension) [mas/yr] -92.7875585542 (0.4) -86.0
Proper motion (declination) [mas/yr] -93.1975838667 (0.4) -92.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50
V magnitude
R magnitude 18.90
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.85 (0.02) 18.85 (0.02) 18.86
g magnitude 18.58 (0.02) 18.57 (0.008) 18.58
r magnitude 18.82 (0.02) 18.81 (0.01) 18.82
i magnitude 19.02 (0.02) 19.02 (0.01) 19.00
z magnitude 19.22 (0.04) 19.21 (0.05) 19.22
G magnitude 18.71
BP magnitude 18.65
RP magnitude 18.64
Pan g magnitude 18.60 (0.01)
Pan r magnitude 18.79 (0.008)
Pan i magnitude 19.03 (0.01)
Pan z magnitude 19.24 (0.01)
Pan y magnitude 19.38 (0.02)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.