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
Spectra without link are available upon request
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.