GD 235
All names: WD2139+115, GD 235, Gaia EDR3 1766702297192943488, Gaia DR2 1766702297192943488, WDJ214128.28+114622.57, Gaia DR3 1766702297192943488, WD 2139+11, SDSS J214128.31+114622.6, WD 2139+115, LP 518-34, EGGR 280, TIC 262305320, J2141+1146, 2MASS J21412828+1146226, SDSS J214128.30+114622.6, LSPM J2141+1146, USNO-B1.0 1017-00663901, GEN# +6.10060235, NLTT 51846
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 41 28.53 (0.04) | 21 41 28.52 (0.06) | 21 41 28.40 | 21 41 28.53 | 21 41 28.28 (0.04) | 21 41 28.52 | 21 41 27.89 | ||||||||
| Declination | 11 46 22.32 (0.04) | 11 46 22.32 (0.06) | 11 46 22.00 | 11 46 22.32 | 11 46 22.57 (0.04) | 11 46 22.32 | 11 46 29.64 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA3.1 | DA3 | |||||||
| Effective temperature | [K] | 15402.0 (160) | 15407.0 (160) | 14540.0 | 16300.0 (257) | 15551.0 (28) | 15523.0 (54) | 15753.0 (203) | |||||||
| log(g) | [cgs] | 7.95 (0.01) | 7.94 (0.01) | 7.87 | 7.97 (0.05) | 7.79 (0.007) | 7.76 (0.01) | 7.97 (0.01) | |||||||
| Mass | [M☉] | 0.584 (0.007) | 0.577 (0.009) | 0.541 | 0.6 (0.03) | 0.49 | 0.599 (0.009) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.1781 | |||||||||||||
| 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] | 11.49 (0.04) | 11.41 (0.08) | 11.49 | 11.49 (0.04) | 11.41 (0.08) | |||||||||
| Distance | [pc] | 87.00 (0.3) | 87.65 (0.6) | 88.00 | 87.00 | 87.00 (0.3) | 87.65 (0.6) | ||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 223.2061778 (0.04) | 223.6047408 (0.1) | 223.206 (0.04) | 223.6047408 | ||||||||||
| Proper motion (declination) | [mas/yr] | -15.99780132 (0.04) | -15.93513793 (0.1) | -15.998 (0.04) | -15.93513793 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 15.88 | ||||||||||||||
| V magnitude | 15.80 | 15.80 | |||||||||||||
| R magnitude | 15.20 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.09 (0.08) | ||||||||||||||
| H magnitude | 16.36 (0.2) | ||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 16.02 (0.006) | 16.01 (0.006) | |||||||||||||
| g magnitude | 15.74 (0.004) | 15.73 (0.003) | |||||||||||||
| r magnitude | 16.04 (0.005) | 16.03 (0.004) | |||||||||||||
| i magnitude | 16.29 (0.005) | 16.29 (0.004) | |||||||||||||
| z magnitude | 16.56 (0.009) | 16.55 (0.01) | |||||||||||||
| G magnitude | 15.89 (0.003) | 15.91 | 15.89 | 15.89 (0.003) | 15.91 | ||||||||||
| BP magnitude | 15.85 (0.003) | 15.84 | 15.84 | ||||||||||||
| RP magnitude | 16.00 (0.005) | 16.00 | 16.00 | ||||||||||||
| Pan g magnitude | 15.77 (0.004) | ||||||||||||||
| Pan r magnitude | 16.04 (0.001) | ||||||||||||||
| Pan i magnitude | 16.31 (0.004) | ||||||||||||||
| Pan z magnitude | 16.55 (0.004) | ||||||||||||||
| Pan y magnitude | 16.71 (0.006) | ||||||||||||||
| E(B-V) | 0.005 | ||||||||||||||
* 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
