PG 0843+517

All names: 2MASS J08470225+5128530, Gaia DR3 1029081452683108480, SBSS 0843+516, PG 0843+517, WISEA J084702.26+512852.5, PG 0843+516, TIC 142259188, SDSS J084702.28+512853.4, WD 0843+516, Gaia DR2 1029081452683108480, GALEX J084702.3+512853, WISE J084702.27+512852.6, Gaia EDR3 1029081452683108480

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Koester et al. 2014 Gaensicke et al. 2012 Xu et al. 2012 Gianninas et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 47 02.27 (0.04) 08 47 02.27 (0.06) 08 47 02.27 08 47 02.29 (0.04) 08 47 00.00
Declination 51 28 51.83 (0.04) 51 28 51.88 (0.05) 51 28 51.83 51 28 53.35 (0.04) 51 28 40.80
Spectral type DAZ DAZ DA DA DA DA2.0 DA3
Effective temperature [K] 19263.0 22412.0 (304) 23095.0 (230) 23900.0 24670.0 (405) 22555.0 (288)
log(g) [cgs] 7.70 7.90 (0.09) 8.17 (0.06) 7.93 (0.05) 7.85 (0.01)
Mass [M] 0.469 0.577 (0.05) 0.6 (0.03) 0.55 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0504
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H) -7.2 (0.2) -7.3 (0.3)
log(N/H)
log(O/H) -5.0 (0.3)
log(Na/H)
log(Mg/H) -4.9 (0.2)
log(Al/H) -6.5 (0.2)
log(Si/H) -5.2 (0.1) -5.2 (0.2)
log(P/H) -6.6 (0.2)
log(S/H) -5.5 (0.3)
log(Sc/H)
log(Ti/H)
log(Cr/H) -5.8 (0.3)
log(Mn/H)
log(Fe/H) -4.6 (0.2)
log(Ni/H) -6.3 (0.3)
Parallax [mas] 7.20 (0.05) 7.34 (0.07) 7.20 7.20 (0.05)
Distance [pc] 138.98 (1) 136.16 (1) 149.00 138.98 138.98 (1)
Composition H H H
Proper motion (right ascension) [mas/yr] -11.3833816 (0.05) -11.44833902 (0.1) -11.383 (0.05)
Proper motion (declination) [mas/yr] -94.96622652 (0.05) -94.85678998 (0.1) -94.966 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk) yes
Binarity
B magnitude 15.90
V magnitude 16.04 (0.05) 16.15
R magnitude
I magnitude
J magnitude 16.59 (0.1)
H magnitude 16.48 (0.2)
K magnitude 16.49
u magnitude 15.79 (0.005)
g magnitude 15.84 (0.003)
r magnitude 16.23 (0.004)
i magnitude 16.55 (0.004)
z magnitude 16.85 (0.01)
G magnitude 16.07 (0.002) 16.08 16.07 16.07 (0.003)
BP magnitude 15.97 (0.002) 15.94
RP magnitude 16.27 (0.003) 16.26
Pan g magnitude 15.91 (0.005)
Pan r magnitude 16.28 (0.006)
Pan i magnitude 16.59 (0.003)
Pan z magnitude 16.83 (0.007)
Pan y magnitude 17.01 (0.006)
E(B-V) 0.007

* 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.