WD 1440+068
All names: ** LDS 4491C, WDJ144255.49+063505.00, WDS J14428+0635C, TIC 1100360772, SDSS J144255.47+063505.0, LP 560-73, SDSS J144255.47+063505.1, ULAS J144255.41+063505.6, J1442+0635, WD 1440+068, SDSS J144255.48+063505.1, Gaia EDR3 1171581179003421312, LSPM J1442+0635E, USNO-B1.0 0965-00238323, Gaia DR2 1171581179003421312, NLTT 38174, GALEX J144255.5+063505, Gaia DR3 1171581179003421312
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 42 55.33 (0.1) | 14 42 55.33 (0.2) | 14 42 55.33 | 14 42 55.49 (0.1) | 14 42 55.33 | 14 42 46.68 | |||||
| Declination | 06 35 06.04 (0.09) | 06 35 06.01 (0.1) | 06 35 06.04 | 06 35 04.99 (0.09) | 06 35 06.01 | 06 35 16.80 | |||||
| Spectral type | DZ: | DZ? | DA | DA | DZ? | ||||||
| Effective temperature | [K] | 6474.0 (47) | 6319.0 | 6460.0 (102) | |||||||
| log(g) | [cgs] | 8.11 (0.02) | 8.06 | 8.12 (0.03) | |||||||
| Mass | [M☉] | 0.659 (0.01) | 0.626 | 0.666 (0.03) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 2.3100 | 2.2310 | ||||||||
| 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] | 14.85 (0.1) | 14.73 (0.2) | 14.73 (0.2) | 14.85 | 14.85 (0.1) | 14.73 (0.2) | ||||
| Distance | [pc] | 67.34 (0.6) | 67.89 (0.8) | 67.89 (0.8) | 67.34 | 67.34 (0.6) | 67.89 (0.8) | ||||
| Composition | H | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -151.6917522 (0.1) | -151.4461074 (0.3) | -151.692 (0.1) | -151.4461074 | ||||||
| Proper motion (declination) | [mas/yr] | 65.7810117 (0.1) | 65.38252402 (0.3) | 65.781 (0.1) | 65.38252402 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | yes | ||||||||||
| B magnitude | 18.10 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 17.60 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.21 (0.03) | 17.21 (0.03) | |||||||||
| H magnitude | 16.98 (0.05) | 16.98 (0.05) | |||||||||
| K magnitude | 17.00 (0.09) | 17.00 (0.09) | |||||||||
| u magnitude | 18.97 (0.02) | 18.95 (0.02) | 18.95 (0.02) | ||||||||
| g magnitude | 18.29 (0.007) | 18.29 (0.007) | |||||||||
| r magnitude | 18.03 (0.007) | 18.03 (0.007) | |||||||||
| i magnitude | 17.92 (0.008) | 17.92 (0.008) | |||||||||
| z magnitude | 17.86 (0.02) | 17.86 (0.02) | |||||||||
| G magnitude | 18.04 (0.02) | 18.06 | 18.04 | 18.04 (0.003) | 18.06 | ||||||
| BP magnitude | 18.28 (0.02) | 18.32 | 18.32 | ||||||||
| RP magnitude | 17.63 (0.02) | 17.64 | 17.64 | ||||||||
| Pan g magnitude | 18.33 (0.02) | 18.33 (0.02) | |||||||||
| Pan r magnitude | 18.07 (0.01) | 18.07 (0.01) | |||||||||
| Pan i magnitude | 17.98 (0.006) | 17.98 (0.008) | |||||||||
| Pan z magnitude | 17.95 (0.006) | 17.95 (0.006) | |||||||||
| Pan y magnitude | 18.01 (0.02) | 18.02 (0.01) | |||||||||
| E(B-V) | 0.005 | ||||||||||
* Constant surface field
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