All names: WDJ214752.10-082436.87, SDSS J214752.10-082436.8, WD 2145-086, 2MASS J21475205-0824371, Gaia EDR3 2666306798185155200, Gaia DR3 2666306798185155200, J2147-0824, Gaia DR2 2666306798185155200, GALEX J214752.0-082435, TIC 333464751, SDSS J214752.09-082436.7
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 21 47 52.13 (0.09) | 21 47 52.13 (0.1) | 21 47 52.13 | 21 47 52.10 (0.09) | 21 47 52.13 | 21 47 52.30 | |||||||
Declination | -08 24 34.45 (0.09) | -08 24 34.52 (0.1) | -08 24 34.45 | -08 24 36.87 (0.09) | -08 24 34.52 | -08 24 32.76 | |||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA8.4 | ||||||
Effective temperature | [K] | 6031.0 (20) | 6022.0 (17) | 6032.0 (20) | 5942.0 | 6014.0 (48) | |||||||
log(g) | [cgs] | 7.94 (0.009) | 7.94 (0.01) | 7.94 (0.01) | 7.90 | 7.93 (0.02) | |||||||
Mass | [M☉] | 0.55 (0.007) | 0.554 (0.008) | 0.554 (0.008) | 0.531 | 0.545 (0.01) | |||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 2.1200 | 1.9780 | ||||||||||
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] | 20.41 (0.1) | 20.48 (0.1) | 20.48 (0.1) | 20.41 | 20.41 (0.1) | 20.48 (0.1) | ||||||
Distance | [pc] | 49.01 (0.3) | 48.83 (0.3) | 48.83 (0.3) | 49.01 | 49.01 (0.3) | 48.83 (0.3) | ||||||
Composition | H | H | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | 32.28409278 (0.1) | 32.02874962 (0.2) | 32.284 (0.1) | 32.02874962 | ||||||||
Proper motion (declination) | [mas/yr] | 151.3735005 (0.09) | 151.5817322 (0.2) | 151.374 (0.09) | 151.5817322 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | 16.43 (0.01) | 16.47 (0.1) | |||||||||||
H magnitude | |||||||||||||
K magnitude | 16.13 (0.04) | 15.46 (0.2) | |||||||||||
u magnitude | 18.59 (0.02) | 18.58 (0.02) | 18.58 (0.02) | 18.34 | |||||||||
g magnitude | 17.75 (0.006) | 17.75 (0.006) | 17.59 | ||||||||||
r magnitude | 17.37 (0.006) | 17.37 (0.006) | 17.27 | ||||||||||
i magnitude | 17.22 (0.006) | 17.22 (0.006) | 17.13 | ||||||||||
z magnitude | 17.18 (0.01) | 17.18 (0.01) | 17.14 | ||||||||||
G magnitude | 17.38 (0.01) | 17.39 | 17.38 | 17.38 (0.003) | 17.39 | ||||||||
BP magnitude | 17.68 (0.01) | 17.67 | 17.67 | ||||||||||
RP magnitude | 16.90 (0.01) | 16.91 | 16.91 | ||||||||||
Pan g magnitude | 17.71 (0.005) | 17.71 (0.004) | |||||||||||
Pan r magnitude | 17.38 (0.003) | 17.38 (0.004) | |||||||||||
Pan i magnitude | 17.25 (0.003) | 17.25 (0.003) | |||||||||||
Pan z magnitude | 17.23 (0.005) | 17.23 (0.004) | |||||||||||
Pan y magnitude | 17.22 (0.007) | 17.22 (0.007) | |||||||||||
E(B-V) | 0.001 |
* 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.