Wolf 309
All names: SDSS J083009.43+452030.2, J0830+4520, WD 0826+455, WD 0826+45, GEN# +6.10060091, WDJ083009.45+452030.30, TIC 27321433, EGGR 217, PG 0826+455, UCAC4 677-049880, 2MASS J08300946+4520303, FBS B 253, 0826+455, GALEX J083009.4+452029, GCRV 21693, Gaia EDR3 918044247294118656, Wolf 309, Gaia DR3 918044247294118656, LTT 12215, GD 91, FBS 0826+455, Gaia DR2 918044247294118656
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2026b | Caron et al. 2023 | Leggett et al. 2018 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 30 09.29 (0.02) | 08 30 09.30 (0.04) | 08 30 09.29 | 08 30 09.45 (0.02) | 08 30 09.30 | 08 30 09.82 | |||||||||
| Declination | 45 20 28.47 (0.02) | 45 20 28.53 (0.03) | 45 20 28.47 | 45 20 30.30 (0.02) | 45 20 28.53 | 45 20 31.56 | |||||||||
| Spectral type | DA | DA | DA5.0 | DA | DA | DA | DA4.8 | DA5 | |||||||
| Effective temperature | [K] | 10334.0 (38) | 10149.0 (33) | 10044.0 (280) | 10034.0 | 10550.0 (152) | 10370.0 (151) | 10056.0 (42) | |||||||
| log(g) | [cgs] | 7.66 (0.006) | 7.63 (0.006) | 7.68 (0.05) | 7.62 | 7.94 (0.05) | 7.86 (0.05) | 7.62 (0.007) | |||||||
| Mass | [M☉] | 0.425 (0.004) | 0.412 (0.004) | 0.43 (0.03) | 0.404 | 0.57 (0.03) | 0.52 (0.03) | 0.404 (0.004) | |||||||
| log(Luminosity) | [L☉] | -2.68 | |||||||||||||
| Cooling age | [Gyr] | 0.3900 | 0.4080 (0.04) | 0.3852 | 0.5129 | ||||||||||
| log(H/He) | |||||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| log(Li/H) | |||||||||||||||
| log(Be/H) | |||||||||||||||
| log(B/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(Cl/H) | |||||||||||||||
| log(K/H) | |||||||||||||||
| log(Sc/H) | |||||||||||||||
| log(Ti/H) | |||||||||||||||
| log(V/H) | |||||||||||||||
| log(Cr/H) | |||||||||||||||
| log(Mn/H) | |||||||||||||||
| log(Fe/H) | |||||||||||||||
| log(Co/H) | |||||||||||||||
| log(Ni/H) | |||||||||||||||
| log(Cu/H) | |||||||||||||||
| log(Sr/H) | |||||||||||||||
| Parallax | [mas] | 20.34 (0.03) | 20.37 (0.05) | 21.13 (0.5) | 20.37 (0.05) | 20.34 | 20.34 (0.03) | 20.37 (0.05) | |||||||
| Distance | [pc] | 49.17 (0.07) | 49.09 (0.1) | 47.33 (1) | 49.09 (0.1) | 43.00 | 45.00 | 49.17 | 49.17 (0.07) | 49.09 (0.1) | |||||
| Composition | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -100.9242479 (0.03) | -100.8329568 (0.07) | -100.924 (0.03) | -100.8329568 | ||||||||||
| Proper motion (declination) | [mas/yr] | -114.27152 (0.02) | -114.3258623 (0.06) | -114.272 (0.02) | -114.3258623 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 15.25 (0.007) | ||||||||||||||
| V magnitude | 15.09 | 15.07 (0.004) | |||||||||||||
| R magnitude | 15.03 (0.008) | ||||||||||||||
| I magnitude | 14.97 (0.01) | ||||||||||||||
| J magnitude | 15.02 (0.01) | 15.00 (0.006) | |||||||||||||
| H magnitude | 15.04 (0.09) | 14.95 (0.009) | |||||||||||||
| K magnitude | 14.84 (0.1) | 14.93 (0.02) | |||||||||||||
| u magnitude | 15.51 (0.004) | 15.51 (0.004) | 15.51 (0.004) | ||||||||||||
| g magnitude | 15.03 (0.003) | 15.01 (0.003) | |||||||||||||
| r magnitude | 15.13 (0.003) | 15.12 (0.003) | |||||||||||||
| i magnitude | 15.27 (0.003) | 15.28 (0.003) | |||||||||||||
| z magnitude | 15.49 (0.005) | 15.50 (0.006) | |||||||||||||
| G magnitude | 15.06 (0.001) | 15.08 | 15.06 | 15.06 (0.003) | 15.08 | ||||||||||
| BP magnitude | 15.11 (0.001) | 15.11 | 15.11 | ||||||||||||
| RP magnitude | 14.99 (0.002) | 15.00 | 15.00 | ||||||||||||
| Pan g magnitude | 15.06 (0.003) | 15.06 (0.003) | |||||||||||||
| Pan r magnitude | 15.17 (0.002) | 15.17 (0.003) | |||||||||||||
| Pan i magnitude | 15.31 (0.004) | 15.31 (0.003) | |||||||||||||
| Pan z magnitude | 15.48 (0.005) | 15.48 (0.004) | |||||||||||||
| Pan y magnitude | 15.61 (0.003) | 15.61 (0.003) | |||||||||||||
| E(B-V) | 0.001 | ||||||||||||||
* 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
