NLTT 45830
All names: NLTT 45830, LSPM J1801+5049E, PM J18014+5049, 18014+5049, WD 1800+508, WDJ180127.52+504958.36, Gaia DR3 2123432247756223488, Gaia EDR3 2123432247756223488, TIC 233506493, 2MASS J18012750+5049581, J1801+5050, Gaia DR2 2123432247756223488, SDSS J180127.50+504958.8, LP 139-38, PSO J270.3638+50.8339, USNO-B1.0 1408-00292038, SDSS J180127.49+504958.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | 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 | 18 01 27.30 (0.06) | 18 01 27.31 (0.07) | 18 01 27.31 (0.07) | 18 01 27.30 | 18 01 27.52 (0.06) | 18 01 27.31 | 18 01 26.78 | ||||||||||
| Declination | 50 50 02.53 (0.06) | 50 50 02.40 (0.08) | 50 50 02.40 (0.08) | 50 50 02.53 | 50 49 58.36 (0.06) | 50 50 02.40 | 50 49 57.72 | ||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DC: | DC | DC | ||||||
| Effective temperature | [K] | 4781.0 (16) | 4781.0 (47) | 4763.0 (19) | 4726.1 (44) | 4635.0 (60) | 4797.0 | 4476.0 | 4990.0 (103) | 4829.0 (31) | |||||||
| log(g) | [cgs] | 7.88 (0.008) | 7.86 (0.04) | 7.90 (0.004) | 7.84 (0.04) | 7.85 (0.02) | 7.89 | 7.66 | 8.00 (0) | 7.91 (0.02) | |||||||
| Mass | [M☉] | 0.508 (0.007) | 0.498 (0.02) | 0.507 (0.002) | 0.481 (0.01) | 0.515 | 0.383 | 0.58 (0.1) | 0.525 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -4.05 | |||||||||||||||
| Cooling age | [Gyr] | 5.5400 | 5.1250 (0.3) | 5.3880 | 3.9290 | ||||||||||||
| log(H/He) | -0.06 | -0.3 | |||||||||||||||
| 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] | 32.28 (0.06) | 32.28 (0.06) | 32.33 (0.08) | 32.33 (0.08) | 32.33 (0.08) | 32.33 (0.08) | 32.28 | 32.28 (0.06) | 32.33 (0.08) | |||||||
| Distance | [pc] | 30.98 (0.06) | 30.98 (0.06) | 30.93 (0.08) | 30.93 (0.07) | 30.93 (0.07) | 30.93 (0.07) | 34.00 (4) | 30.98 | 30.98 (0.06) | 30.93 (0.07) | ||||||
| Composition | H | He | He | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -128.10337 (0.08) | -128.0448111 (0.2) | -128.103 (0.08) | -128.0448111 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 260.667554 (0.08) | 260.4957779 (0.2) | 260.668 (0.08) | 260.4957779 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 18.20 | ||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | 17.10 | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.02 (0.01) | 16.00 (0.09) | 16.00 | 16.00 (0.09) | |||||||||||||
| H magnitude | 16.20 (0.2) | 16.20 (0.2) | 16.20 | 16.20 (0.2) | |||||||||||||
| K magnitude | 15.94 (0.03) | 15.94 | |||||||||||||||
| u magnitude | 19.97 (0.05) | 19.87 | 19.96 (0.05) | 19.96 (0.05) | |||||||||||||
| g magnitude | 18.15 | 18.03 (0.006) | 18.17 (0.006) | ||||||||||||||
| r magnitude | 17.33 | 17.34 (0.005) | 17.34 (0.005) | ||||||||||||||
| i magnitude | 17.05 | 17.05 (0.002) | 17.06 (0.005) | ||||||||||||||
| z magnitude | 16.91 | 16.96 (0.006) | 16.93 (0.01) | ||||||||||||||
| G magnitude | 17.37 (0.009) | 17.39 | 17.39 | 17.37 | 17.37 (0.003) | 17.39 | |||||||||||
| BP magnitude | 17.91 (0.009) | 17.93 | 17.93 | ||||||||||||||
| RP magnitude | 16.71 (0.006) | 16.71 | 16.71 | ||||||||||||||
| Pan g magnitude | 18.03 (0.005) | 18.03 (0.006) | 18.03 (0.006) | ||||||||||||||
| Pan r magnitude | 17.34 (0.004) | 17.34 (0.005) | 17.34 (0.005) | ||||||||||||||
| Pan i magnitude | 17.05 (0.002) | 17.05 (0.002) | 17.05 (0.002) | ||||||||||||||
| Pan z magnitude | 16.96 (0.006) | 16.96 (0.006) | 16.96 (0.006) | ||||||||||||||
| Pan y magnitude | 16.90 (0.006) | 16.90 (0.006) | 16.90 (0.006) | ||||||||||||||
| E(B-V) | 0.003 | ||||||||||||||||
* Constant surface field
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