WD 1338+408
All names: LSPM J1340+4033, USNO-B1.0 1305-00235889, WDJ134019.64+403303.76, NLTT 34857, Gaia EDR3 1500140065408640512, Gaia DR2 1500140065408640512, LP 219-52, WD 1338+408, SDSS J134019.66+403303.1, J1340+4033, Gaia DR3 1500140065408640512
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 40 19.75 (0.09) | 13 40 19.74 (0.3) | 13 40 19.75 | 13 40 19.64 (0.09) | 13 40 19.74 | 13 40 19.68 | |||||||
| Declination | 40 33 00.78 (0.1) | 40 33 00.87 (0.4) | 40 33 00.78 | 40 33 03.75 (0.1) | 40 33 00.87 | 40 32 56.40 | |||||||
| Spectral type | DC | DC | DC | DC | DC: | DC | DC10.6 | ||||||
| Effective temperature | [K] | 4789.0 (28) | 4800.0 (28) | 4808.0 | 4483.0 | 4912.0 (56) | |||||||
| log(g) | [cgs] | 7.73 (0.02) | 7.76 (0.03) | 7.76 | 7.52 | 7.82 (0.03) | |||||||
| Mass | [M☉] | 0.428 (0.01) | 0.445 (0.02) | 0.446 | 0.323 | 0.475 (0.03) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 4.0800 | 3.9780 | 3.1450 | |||||||||
| 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] | 16.27 (0.2) | 16.46 (0.4) | 16.46 (0.4) | 16.27 | 16.27 (0.2) | 16.46 (0.4) | ||||||
| Distance | [pc] | 61.48 (0.6) | 60.75 (1) | 60.76 (1) | 61.48 | 61.48 (0.6) | 60.76 (1) | ||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 75.81171186 (0.1) | 75.20589553 (0.5) | 75.812 (0.1) | 75.20589553 | ||||||||
| Proper motion (declination) | [mas/yr] | -185.5496716 (0.1) | -186.2488088 (0.8) | -185.55 (0.1) | -186.2488088 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 20.10 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.70 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.31 (0.04) | 17.31 (0.04) | |||||||||||
| H magnitude | 17.01 (0.04) | 17.01 (0.04) | |||||||||||
| K magnitude | 16.84 (0.04) | 16.84 (0.04) | |||||||||||
| u magnitude | 21.27 (0.1) | 21.27 (0.1) | 21.27 (0.1) | 21.06 | |||||||||
| g magnitude | 19.45 (0.01) | 19.45 (0.01) | 19.43 | ||||||||||
| r magnitude | 18.66 (0.009) | 18.66 (0.009) | 18.65 | ||||||||||
| i magnitude | 18.35 (0.01) | 18.35 (0.01) | 18.36 | ||||||||||
| z magnitude | 18.24 (0.03) | 18.24 (0.03) | 18.26 | ||||||||||
| G magnitude | 18.68 (0.03) | 18.71 | 18.68 | 18.68 (0.003) | 18.71 | ||||||||
| BP magnitude | 19.20 (0.03) | 19.19 | 19.19 | ||||||||||
| RP magnitude | 18.02 (0.01) | 18.03 | 18.03 | ||||||||||
| Pan g magnitude | 19.32 (0.01) | 19.32 (0.01) | |||||||||||
| Pan r magnitude | 18.63 (0.005) | 18.63 (0.005) | |||||||||||
| Pan i magnitude | 18.36 (0.007) | 18.36 (0.006) | |||||||||||
| Pan z magnitude | 18.28 (0.006) | 18.28 (0.007) | |||||||||||
| Pan y magnitude | 18.18 (0.02) | 18.18 (0.02) | |||||||||||
| E(B-V) | 0.004 | ||||||||||||
* Constant surface field
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