SDSS J163841.66+334302.1
All names: GALEX J163841.6+334302, WD 1636+338, Gaia DR3 1326595688406348160, SDSS J163841.66+334302.1, Gaia DR2 1326595688406348160, SDSS J163841.67+334302.1, Gaia EDR3 1326595688406348160, WIRED J163841.66+334302.1
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 38 41.68 (0.1) | 16 38 41.67 | 16 38 41.68 (0.1) | 16 38 41.67 | 16 38 41.68 | 16 38 41.67 (0.1) | 16 38 41.67 | 16 38 40.97 | 16 38 41.67 | ||||
| Declination | 33 43 01.29 (0.1) | 33 43 02.19 | 33 43 01.32 (0.2) | 33 43 02.10 | 33 43 01.29 | 33 43 02.38 (0.1) | 33 43 02.15 | 33 42 56.16 | 33 43 02.15 | ||||
| Spectral type | DA+M | DA+M | DA | DA+M | DA_auto | DA | DAH | DA+MS | |||||
| Effective temperature | [K] | 9084.0 | 9509.0 (194) | 8956.0 (244) | 9637.0 (88) | 9515.0 (90) | |||||||
| log(g) | [cgs] | 7.47 | 7.51 (0.4) | 7.38 (0.07) | 7.70 (0.1) | 7.64 (0.1) | |||||||
| Mass | [M☉] | 0.341 | 0.36 (0.2) | 0.308 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.4474 | |||||||||||
| 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] | 3.72 (0.2) | 3.81 (0.2) | 3.72 | 3.72 (0.2) | ||||||||
| Distance | [pc] | 268.54 (11) | 262.35 (14) | 556.00 (50) | 268.54 | 268.54 (11) | |||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.74751105 (0.2) | 12.16178603 (0.3) | 12.748 (0.2) | |||||||||
| Proper motion (declination) | [mas/yr] | -68.07427327 (0.2) | -69.01172955 (0.4) | -68.074 (0.2) | |||||||||
| 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 | 19.44 (0.02) | 19.38 | 19.44 (0.03) | 19.38 (0.03) | 19.38 | 19.41 (0.03) | |||||||
| g magnitude | 18.91 (0.009) | 18.90 | 18.91 (0.009) | 18.90 (0.01) | 18.90 | 18.92 (0.01) | |||||||
| r magnitude | 18.95 (0.01) | 18.93 | 18.95 (0.01) | 18.93 (0.02) | 18.94 | 18.95 (0.02) | |||||||
| i magnitude | 19.03 (0.01) | 19.04 | 19.03 (0.01) | 19.04 (0.03) | 19.05 | 19.05 (0.03) | |||||||
| z magnitude | 19.32 (0.05) | 19.32 | 19.32 (0.05) | 19.32 (0.08) | 19.33 | 19.34 (0.08) | |||||||
| G magnitude | 18.89 (0.02) | 18.93 | 18.89 | 18.89 (0.003) | |||||||||
| BP magnitude | 18.98 (0.02) | 18.95 | |||||||||||
| RP magnitude | 18.58 (0.04) | 18.48 | |||||||||||
| Pan g magnitude | |||||||||||||
| Pan r magnitude | |||||||||||||
| Pan i magnitude | |||||||||||||
| Pan z magnitude | |||||||||||||
| Pan y magnitude | |||||||||||||
| E(B-V) | 0.018 | ||||||||||||
* Constant surface field
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