GD 186
All names: WDJ153349.31+181855.21, TIC 355886421, Gaia DR2 1209640499120458752, Gaia EDR3 1209640499120458752, WD 1531+184, LSPM J1533+1818, 2MASS J15334932+1818552, USNO-B1.0 1083-00259689, WD 1531+18, GEN# +6.10060186, GD 186, Gaia DR3 1209640499120458752, GALEX J153349.2+181854
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 33 49.25 (0.04) | 15 33 49.25 (0.05) | 15 33 49.25 | 15 33 49.31 (0.04) | 15 33 49.25 | 15 33 49.08 | ||||||
| Declination | 18 18 52.42 (0.04) | 18 18 52.51 (0.05) | 18 18 52.42 | 18 18 55.20 (0.04) | 18 18 52.51 | 18 13 59.16 | ||||||
| Spectral type | DA | DA | DA | DA3.7 | DA5 | |||||||
| Effective temperature | [K] | 11944.0 | 13720.0 (343) | 13625.0 (104) | 12586.0 (197) | |||||||
| log(g) | [cgs] | 7.91 | 8.05 (0.06) | 7.77 (0.01) | 7.96 (0.01) | |||||||
| Mass | [M☉] | 0.553 | 0.64 (0.03) | 0.586 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.3353 | ||||||||||
| 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] | 11.42 (0.05) | 11.36 (0.07) | 11.42 | 11.42 (0.05) | 11.36 (0.07) | ||||||
| Distance | [pc] | 87.55 (0.4) | 88.02 (0.5) | 87.00 | 87.55 | 87.55 (0.4) | 88.02 (0.5) | |||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -50.95739491 (0.05) | -51.18505592 (0.1) | -50.957 (0.05) | -51.18505592 | |||||||
| Proper motion (declination) | [mas/yr] | -173.855115 (0.05) | -174.2739593 (0.1) | -173.855 (0.05) | -174.2739593 | |||||||
| Variability | NOV | |||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 16.36 | |||||||||||
| V magnitude | 16.20 | |||||||||||
| R magnitude | 16.10 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.50 (0.1) | |||||||||||
| H magnitude | 16.50 (0.2) | |||||||||||
| K magnitude | ||||||||||||
| u magnitude | 16.53 (0.007) | |||||||||||
| g magnitude | 16.17 (0.004) | |||||||||||
| r magnitude | 16.41 (0.005) | |||||||||||
| i magnitude | 16.60 (0.005) | |||||||||||
| z magnitude | 16.86 (0.01) | |||||||||||
| G magnitude | 16.30 (0.003) | 16.32 | 16.30 | 16.30 (0.003) | 16.32 | |||||||
| BP magnitude | 16.31 (0.003) | 16.30 | 16.30 | |||||||||
| RP magnitude | 16.32 (0.004) | 16.32 | 16.32 | |||||||||
| Pan g magnitude | 16.21 (0.004) | |||||||||||
| Pan r magnitude | 16.42 (0.002) | |||||||||||
| Pan i magnitude | 16.63 (0.004) | |||||||||||
| Pan z magnitude | 16.84 (0.006) | |||||||||||
| Pan y magnitude | 16.98 (0.007) | |||||||||||
| E(B-V) | 0.019 | |||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
