LAWD 18
All names: GCRV 21716, KUV 04211+1614, HG 7-191, UCAC4 532-008304, CSI+16-04210, Cl* Melotte 25 VR 7, VVO 384, KUV 684-3, PLX 969.01, 2MASS J04235568+1621152, Cl* Melotte 25 REIDA 142, Cl* Melotte 25 VA 292, UBV 4244, USNO-B1.0 1063-00045478, LP 415-46, TIC 435937495, Cl* Melotte 25 REID 192, UBV M 41419, WD 0421+16, Cl* Melotte 25 HAN 298, EGGR 36, uvby98 520251292, SDSS J042355.74+162115.0, LAWD 18, WDJ042355.70+162115.12, Gaia DR3 3313606340183243136, Gaia EDR3 3313606340183243136, Gaia DR2 3313606340183243136, GEN# +5.20251292, WD 0421+162
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 23 55.82 (0.03) | 04 23 55.82 (0.05) | 04 23 55.82 | 04 23 55.70 (0.03) | 04 23 55.82 | 04 23 55.54 | |||||||
| Declination | 16 21 14.68 (0.02) | 16 21 14.69 (0.03) | 16 21 14.68 | 16 21 15.12 (0.02) | 16 21 14.69 | 16 21 11.52 | |||||||
| Spectral type | DA | DA | DA | DA2.5 | DA2.5 | ||||||||
| Effective temperature | [K] | 18240.0 | 19322.0 (262) | 20010.0 (315) | 19616.0 (22) | 18627.0 (151) | |||||||
| log(g) | [cgs] | 8.09 | 8.10 (0.09) | 8.13 (0.05) | 8.03 (0.004) | 8.09 (0.007) | |||||||
| Mass | [M☉] | 0.671 | 0.677 (0.05) | 0.7 (0.03) | 0.674 (0.006) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.1206 | |||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(C/H) | <-8.30 | ||||||||||||
| log(N/H) | |||||||||||||
| log(O/H) | |||||||||||||
| log(Na/H) | |||||||||||||
| log(Mg/H) | |||||||||||||
| log(Al/H) | |||||||||||||
| log(Si/H) | -7.5 (0.1) | ||||||||||||
| 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] | 22.09 (0.03) | 22.23 (0.05) | 22.09 | 22.09 (0.03) | 22.23 (0.05) | 16.00 (14) | ||||||
| Distance | [pc] | 45.27 (0.07) | 44.99 (0.1) | 47.00 | 45.27 | 45.27 (0.07) | 44.99 (0.1) | 62.50 (55) | |||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 114.6098269 (0.04) | 114.4115483 (0.1) | 114.61 (0.04) | 114.4115483 | ||||||||
| Proper motion (declination) | [mas/yr] | -27.79161337 (0.03) | -27.71526545 (0.08) | -27.792 (0.03) | -27.71526545 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 14.33 | ||||||||||||
| V magnitude | 14.29 (0.04) | 14.29 | 14.27 | ||||||||||
| R magnitude | 14.79 (0.1) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 14.74 (0.04) | ||||||||||||
| H magnitude | 14.81 (0.06) | ||||||||||||
| K magnitude | 15.09 (0.2) | ||||||||||||
| u magnitude | 14.22 (0.003) | 14.22 (0.003) | |||||||||||
| g magnitude | 14.96 (0.006) | 14.96 (0.006) | |||||||||||
| r magnitude | 14.50 (0.004) | 14.50 (0.004) | |||||||||||
| i magnitude | 14.79 (0.004) | 14.79 (0.004) | |||||||||||
| z magnitude | 15.09 (0.005) | 15.09 (0.005) | |||||||||||
| G magnitude | 14.33 (0.001) | 14.35 | 14.33 | 14.33 (0.003) | 14.35 | ||||||||
| BP magnitude | 14.25 (0.001) | 14.22 | 14.22 | ||||||||||
| RP magnitude | 14.50 (0.001) | 14.50 | 14.50 | ||||||||||
| Pan g magnitude | 14.20 (0.007) | ||||||||||||
| Pan r magnitude | 14.53 (0.006) | ||||||||||||
| Pan i magnitude | 14.83 (0.002) | ||||||||||||
| Pan z magnitude | 15.08 (0.008) | ||||||||||||
| Pan y magnitude | 15.27 (0.005) | ||||||||||||
| E(B-V) | 0.001 | ||||||||||||
* Constant surface field
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