All names: PHL 166, Gaia DR2 2618044903514529280, USNO-B1.0 0803-00671451, HE 2147-0950, GALEX J214955.7-093631, Gaia DR3 2618044903514529280, Gaia EDR3 2618044903514529280, WD 2147-098
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 21 49 55.80 (0.07) | 21 49 55.79 (0.1) | 21 49 55.80 | 21 49 55.75 (0.07) | 21 49 55.99 | ||||
Declination | -09 36 31.79 (0.06) | -09 36 31.79 (0.1) | -09 36 31.79 | -09 36 31.56 (0.06) | -09 36 28.08 | ||||
Spectral type | DBA | DB | DBA | DBA3.6 | |||||
Effective temperature | [K] | 12620.0 | 13664.0 (248) | ||||||
log(g) | [cgs] | 7.92 | 8.08 (0.02) | ||||||
Mass | [M☉] | 0.541 | 0.637 (0.02) | ||||||
log(Luminosity) | [L☉] | ||||||||
Cooling age | [Gyr] | 0.2977 | |||||||
log(H/He) | |||||||||
log(C/He) | |||||||||
log(Ca/He) | |||||||||
log(Ca/H) | |||||||||
log(N/He) | |||||||||
log(O/He) | |||||||||
log(Na/He) | |||||||||
log(Mg/He) | |||||||||
log(Al/He) | |||||||||
log(Si/He) | |||||||||
log(P/He) | |||||||||
log(S/He) | |||||||||
log(Cl/He) | |||||||||
log(Sc/He) | |||||||||
log(Ti/He) | |||||||||
log(V/He) | |||||||||
log(Cr/He) | |||||||||
log(Mn/He) | |||||||||
log(Fe/He) | |||||||||
log(Co/He) | |||||||||
log(Ni/He) | |||||||||
log(Cu/He) | |||||||||
log(Zn/He) | |||||||||
log(Ga/He) | |||||||||
log(Ge/He) | |||||||||
log(Sr/He) | |||||||||
Parallax | [mas] | 8.99 (0.08) | 8.74 (0.1) | 8.99 | 8.99 (0.08) | ||||
Distance | [pc] | 111.20 (1) | 114.41 (2) | 111.20 | 111.20 (1) | ||||
Composition | He | ||||||||
Proper motion (right ascension) | [mas/yr] | 43.62198639 (0.08) | 43.67177531 (0.2) | 43.622 (0.08) | |||||
Proper motion (declination) | [mas/yr] | -14.60376154 (0.06) | -14.33657608 (0.2) | -14.604 (0.06) | |||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | 17.00 | ||||||||
V magnitude | 17.20 | ||||||||
R magnitude | 16.70 | ||||||||
I magnitude | |||||||||
J magnitude | |||||||||
H magnitude | |||||||||
K magnitude | |||||||||
u magnitude | |||||||||
g magnitude | |||||||||
r magnitude | |||||||||
i magnitude | |||||||||
z magnitude | |||||||||
G magnitude | 16.84 (0.002) | 16.86 | 16.84 | 16.84 (0.003) | |||||
BP magnitude | 16.81 (0.002) | 16.74 | |||||||
RP magnitude | 16.90 (0.007) | 16.87 | |||||||
Pan g magnitude | 16.79 (0.004) | ||||||||
Pan r magnitude | 16.99 (0.004) | ||||||||
Pan i magnitude | 17.21 (0.003) | ||||||||
Pan z magnitude | 17.41 (0.006) | ||||||||
Pan y magnitude | 17.54 (0.01) | ||||||||
E(B-V) | 0.005 |
* 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.