Gaia DR2 2501224305619721984
All names: HS 0225+0010, WD 0225+001, WDJ022755.52+002338.71, USNO-B1.0 0903-00025826, Gaia DR2 2501224305619721984, UCAC4 452-003197, WDJ022755.52+002338.70, SDSS J022755.52+002338.5, 2MASS J02275551+0023382
| Parameter | Unit | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 02 27 55.54 | 02 27 55.54 | 02 27 55.52 (0.06) | 02 27 55.54 | |||
| Declination | 00 23 38.11 | 00 23 38.11 | 00 23 38.71 (0.06) | 00 23 38.11 | |||
| Spectral type | DA | ||||||
| Effective temperature | [K] | 11362.0 | 11998.0 | ||||
| log(g) | [cgs] | 7.95 | 7.95 | ||||
| Mass | [M☉] | 0.5760000000000001 | 0.556 | ||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | 0.4054 | 0.3572 | ||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 13.45 (0.07) | 13.45 (0.07) | 13.45 (0.07) | |||
| Distance | [pc] | 74.33 (0.4) | 74.33 (0.4) | 74.33 (0.4) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 16.37395687 (0.1) | 16.374 (0.1) | 16.37395687 | |||
| Proper motion (declination) | [mas/yr] | -38.61221354 (0.1) | -38.612 (0.1) | -38.61221354 | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 16.02 (0.04) | ||||||
| V magnitude | 15.38 (0.01) | ||||||
| R magnitude | 15.90 | ||||||
| I magnitude | |||||||
| J magnitude | 16.15 (0.09) | ||||||
| H magnitude | 16.06 (0.2) | ||||||
| K magnitude | |||||||
| u magnitude | 16.44 (0.006) | ||||||
| g magnitude | 15.96 (0.004) | ||||||
| r magnitude | 16.16 (0.004) | ||||||
| i magnitude | 16.38 (0.005) | ||||||
| z magnitude | 16.64 (0.01) | ||||||
| G magnitude | 16.08 | 16.08 (0.001) | 16.08 | ||||
| BP magnitude | 16.06 | 16.06 | |||||
| RP magnitude | 16.09 | 16.09 | |||||
| Pan g magnitude | 16.05 (0.03) | ||||||
| Pan r magnitude | 16.19 (0.006) | ||||||
| Pan i magnitude | 16.39 (0.003) | ||||||
| Pan z magnitude | 16.61 (0.006) | ||||||
| Pan y magnitude | 16.74 (0.008) |
* Constant surface field
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