USNO-A2.0 0750-21042658
All names: WD 2155-084, Gaia EDR3 2618519896833150080, GALEX J215739.4-081451, Gaia DR3 2618519896833150080, Gaia DR2 2618519896833150080, SDSS J215739.39-081452.2, USNO-A2.0 0750-21042658, SDSS J215739.39-081452.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 57 39.39 (0.4) | 21 57 39.39 | 21 57 39.39 (0.5) | 21 57 39.39 (0.4) | 21 57 39.39 | 21 57 38.83 | 21 57 39.39 | |||||
| Declination | -08 14 52.26 (0.3) | -08 14 52.13 | -08 14 52.25 (0.5) | -08 14 52.11 (0.3) | -08 14 52.18 | -08 14 45.96 | -08 14 52.20 | |||||
| Spectral type | DA | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 11592.0 | 13534.0 (469) | 13159.0 (512) | ||||||||
| log(g) | [cgs] | 8.62 | 8.77 (0.1) | 8.64 (0.1) | ||||||||
| Mass | [M☉] | 1.0 | 0.992 (0.08) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.2140 | ||||||||||
| 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] | 4.37 (0.4) | 4.67 (0.6) | 4.37 (0.4) | ||||||||
| Distance | [pc] | 229.02 (20) | 213.94 (26) | 229.02 (20) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.54142431 (0.4) | -3.004076337 (0.9) | -2.541 (0.4) | -5.1 | |||||||
| Proper motion (declination) | [mas/yr] | -9.074654362 (0.3) | -10.1931656 (0.9) | -9.075 (0.3) | -15.8 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 18.50 (0.3) | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 19.00 (0.3) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.74 (0.04) | 19.74 (0.04) | 19.64 (0.04) | 19.64 | 19.65 (0.04) | |||||||
| g magnitude | 19.35 (0.01) | 19.35 (0.01) | 19.35 (0.02) | 19.35 | 19.36 (0.02) | |||||||
| r magnitude | 19.50 (0.02) | 19.50 (0.02) | 19.50 (0.02) | 19.50 | 19.49 (0.02) | |||||||
| i magnitude | 19.65 (0.02) | 19.65 (0.02) | 19.68 (0.03) | 19.68 | 19.67 (0.03) | |||||||
| z magnitude | 19.92 (0.09) | 19.92 (0.09) | 19.85 (0.1) | 19.85 | 19.82 (0.1) | |||||||
| G magnitude | 19.42 (0.03) | 19.48 | 19.42 (0.005) | |||||||||
| BP magnitude | 19.47 (0.03) | 19.45 | ||||||||||
| RP magnitude | 19.41 (0.06) | 19.52 | ||||||||||
| Pan g magnitude | 19.37 (0.01) | |||||||||||
| Pan r magnitude | 19.54 (0.01) | |||||||||||
| Pan i magnitude | 19.73 (0.01) | |||||||||||
| Pan z magnitude | 19.91 (0.05) | |||||||||||
| Pan y magnitude | 19.89 (0.09) | |||||||||||
| E(B-V) | 0.032 | |||||||||||
* Constant surface field
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