SDSS J161836.79+071301.1
All names: SDSS J161836.79+071301.1, GALEX J161836.7+071301, Gaia DR2 4451808575253327744, Gaia EDR3 4451808575253327744, Gaia DR3 4451808575253327744
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 18 36.80 (0.4) | 16 18 36.79 | 16 18 36.80 (0.4) | 16 18 36.79 | 16 18 36.80 (0.4) | ||||||
| Declination | 07 13 01.35 (0.3) | 07 13 01.19 | 07 13 01.34 (0.3) | 07 13 01.16 | 07 13 01.08 (0.3) | ||||||
| Spectral type | WD+MS | WD+MS | WD+MS | DA+dM | DA+MS | ||||||
| Effective temperature | [K] | 6230.0 | 6008.0 | 8573.0 (135) | |||||||
| log(g) | [cgs] | 6.98 | 6.72 | 8.01 (0.2) | |||||||
| Mass | [M☉] | 0.185 | 0.11 | 0.6 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.40 (0.5) | 3.47 (0.5) | 3.40 (0.5) | |||||||
| Distance | [pc] | 294.27 (41) | 287.86 (44) | 273.00 (38) | 294.27 (41) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 0.283150322 (0.5) | -0.409404687 (0.9) | 0.283 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | 16.62590813 (0.4) | 16.35369383 (0.6) | 16.626 (0.4) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.49 (0.05) | 20.51 | 20.48 (0.05) | ||||||||
| g magnitude | 20.01 (0.02) | 20.04 | 20.01 (0.02) | ||||||||
| r magnitude | 19.98 (0.02) | 19.98 | 19.98 (0.02) | ||||||||
| i magnitude | 19.97 (0.02) | 19.98 | 19.97 (0.02) | ||||||||
| z magnitude | 19.61 (0.06) | 19.61 | 19.61 (0.06) | ||||||||
| G magnitude | 19.88 (0.1) | 19.94 | 19.88 (0.005) | ||||||||
| BP magnitude | 20.11 (0.1) | 19.94 | |||||||||
| RP magnitude | 19.50 (0.07) | 19.48 | |||||||||
| Pan g magnitude | 20.01 (0.03) | ||||||||||
| Pan r magnitude | 19.97 (0.01) | ||||||||||
| Pan i magnitude | 19.98 (0.01) | ||||||||||
| Pan z magnitude | 19.73 (0.02) | ||||||||||
| Pan y magnitude | 19.42 (0.03) | ||||||||||
| E(B-V) | 0.045 | ||||||||||
* Constant surface field
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