NLTT 31612
All names: 12425+1311W, WDJ124234.49+131142.09, Gaia DR2 3929166408868873344, LP 495-252, WD 1240+134, Gaia EDR3 3929166408868873344, USNO-B1.0 1031-00232231, LSPM J1242+1311W, SDSS J124234.43+131141.3, Gaia DR3 3929166408868873344, PM J12425+1311W, NLTT 31612, J1242+1311
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 42 34.21 (0.1) | 12 42 34.22 (0.2) | 12 42 34.21 | 12 42 34.50 (0.1) | 12 42 34.22 | 12 42 33.91 | ||||||||
| Declination | 13 11 38.74 (0.06) | 13 11 38.84 (0.1) | 13 11 38.74 | 13 11 42.09 (0.06) | 13 11 38.84 | 13 11 34.08 | ||||||||
| Spectral type | DC | DC | DC | DC | DC | DC: | DC | DC | ||||||
| Effective temperature | [K] | 4964.0 (26) | 5035.0 (24) | 4993.0 | 4672.0 | 4970.0 (135) | 5074.0 (43) | |||||||
| log(g) | [cgs] | 7.94 (0.01) | 8.00 (0.01) | 7.94 | 7.72 | 8.00 (0) | 8.01 (0.02) | |||||||
| Mass | [M☉] | 0.546 (0.01) | 0.58 (0.01) | 0.546 | 0.413 | 0.58 (0.1) | 0.588 (0.02) | |||||||
| log(Luminosity) | [L☉] | -4.06 | ||||||||||||
| Cooling age | [Gyr] | 5.7200 | 5.0240 | 3.8370 | ||||||||||
| 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] | 22.34 (0.1) | 22.09 (0.2) | 22.09 (0.2) | 22.34 | 22.34 (0.1) | 22.09 (0.2) | |||||||
| Distance | [pc] | 44.77 (0.3) | 45.27 (0.4) | 45.27 (0.4) | 44.70 (6) | 44.77 | 44.77 (0.3) | 45.27 (0.4) | ||||||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -262.5651962 (0.2) | -262.0260083 (0.4) | -262.565 (0.2) | -262.0260083 | |||||||||
| Proper motion (declination) | [mas/yr] | -209.3539888 (0.2) | -209.6340736 (0.2) | -209.354 (0.2) | -209.6340736 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 19.50 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 18.00 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.83 (0.02) | |||||||||||||
| H magnitude | 16.57 (0.02) | |||||||||||||
| K magnitude | 16.47 (0.04) | |||||||||||||
| u magnitude | 20.41 (0.05) | 20.42 | 20.41 (0.05) | 20.41 (0.05) | ||||||||||
| g magnitude | 18.74 | 18.72 (0.008) | 18.72 (0.008) | |||||||||||
| r magnitude | 18.05 | 18.04 (0.007) | 18.04 (0.007) | |||||||||||
| i magnitude | 17.80 | 17.79 (0.007) | 17.79 (0.007) | |||||||||||
| z magnitude | 17.69 | 17.69 (0.01) | 17.69 (0.01) | |||||||||||
| G magnitude | 18.08 (0.02) | 18.10 | 18.08 | 18.08 (0.003) | 18.10 | |||||||||
| BP magnitude | 18.52 (0.02) | 18.56 | 18.56 | |||||||||||
| RP magnitude | 17.45 (0.01) | 17.46 | 17.46 | |||||||||||
| Pan g magnitude | 18.65 (0.008) | 18.65 (0.01) | ||||||||||||
| Pan r magnitude | 18.04 (0.004) | 18.04 (0.004) | ||||||||||||
| Pan i magnitude | 17.81 (0.008) | 17.81 (0.008) | ||||||||||||
| Pan z magnitude | 17.70 (0.007) | 17.70 (0.006) | ||||||||||||
| Pan y magnitude | 17.65 (0.01) | 17.65 (0.01) | ||||||||||||
| E(B-V) | 0.001 | |||||||||||||
* Constant surface field
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