[CCS88] 1638.3+4043
All names: WD 1638+407, GALEX J164000.7+403810, Gaia DR2 1356029202364705280, [CCS88] 1638.3+4043, Gaia DR3 1356029202364705280, SDSS J164000.77+403810.6, Gaia EDR3 1356029202364705280, SDSS J164000.77+403810.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | 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 | 16 40 00.78 (0.4) | 16 40 00.77 | 16 40 00.78 (0.5) | 16 40 00.77 (0.4) | 16 40 00.77 | 16 40 00.89 | 16 40 00.77 | ||||||
| Declination | 40 38 10.31 (0.4) | 40 38 10.57 | 40 38 10.32 (0.5) | 40 38 10.57 (0.4) | 40 38 10.67 | 40 38 08.16 | 40 38 10.60 | ||||||
| Spectral type | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 34670.0 (1437) | 20753.0 | 31579.0 (752) | 32020.0 (671) | ||||||||
| log(g) | [cgs] | 7.71 (0.2) | 8.15 | 8.01 (0.2) | 8.00 (0.2) | ||||||||
| Mass | [M☉] | 0.52 (0.1) | 0.713 | 0.647 (0.08) | |||||||||
| log(Luminosity) | [L☉] | -0.44 (0.2) | |||||||||||
| Cooling age | [Gyr] | 0.0052 (0.001) | 0.0850 | ||||||||||
| 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] | 1.53 (0.4) | 1.59 (0.6) | 1.53 (0.4) | |||||||||
| Distance | [pc] | 654.79 (182) | 629.52 (221) | 654.79 (182) | |||||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.186306301 (0.5) | 6.726239431 (1) | 7.186 (0.5) | 3.1 | ||||||||
| Proper motion (declination) | [mas/yr] | -16.4861687 (0.5) | -14.11794898 (1) | -16.486 (0.5) | -18.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.50 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.61 (0.03) | 19.61 (0.03) | 19.64 (0.03) | 19.63 | 19.63 (0.03) | ||||||||
| g magnitude | 19.79 (0.01) | 19.79 (0.01) | 19.76 (0.02) | 19.76 | 19.77 (0.02) | ||||||||
| r magnitude | 20.16 (0.02) | 20.16 (0.02) | 20.18 (0.02) | 20.17 | 20.18 (0.02) | ||||||||
| i magnitude | 20.59 (0.04) | 20.59 (0.04) | 20.57 (0.04) | 20.56 | 20.57 (0.04) | ||||||||
| z magnitude | 20.60 (0.2) | 20.60 (0.2) | 21.11 (0.2) | 21.10 | 21.12 (0.2) | ||||||||
| G magnitude | 20.00 (0.06) | 20.06 | 20.00 (0.006) | ||||||||||
| BP magnitude | 19.92 (0.06) | 19.86 | |||||||||||
| RP magnitude | 20.05 (0.07) | 20.18 | |||||||||||
| Pan g magnitude | 19.82 (0.01) | ||||||||||||
| Pan r magnitude | 20.19 (0.02) | ||||||||||||
| Pan i magnitude | 20.52 (0.02) | ||||||||||||
| Pan z magnitude | 20.76 (0.05) | ||||||||||||
| Pan y magnitude | |||||||||||||
| E(B-V) | 0.019 | ||||||||||||
* Constant surface field
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