GJ 4054
All names: G227-28, USNO 654, Gaia DR2 2158285185808357504, Gaia DR3 2158285185808357504, USNO-B1.0 1510-00234477, LHS 3380, 18213+6101, LSPM J1821+6101, 2MASS J18211982+6101079, TIC 233688184, PSO J275.3335+61.0164, CNS5 4541, G 227-28, NLTT 46393, WD 1820+609, Gaia EDR3 2158285185808357504, PLX 4233.01, J1821+6100, G227-028, PM J18213+6101, GJ 4054, WDJ182119.83+610107.38, LP 103-294
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Hardy et al. 2023a | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Holberg et al. 2016 | Ferrario et al. 2015 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 21 20.16 (0.03) | 18 21 20.15 (0.03) | 18 21 20.15 (0.03) | 18 21 19.68 | 18 21 20.16 | 18 21 19.83 (0.03) | 18 21 20.15 | 18 21 18.72 | ||||||||||||||
| Declination | 61 00 56.21 (0.02) | 61 00 56.56 (0.03) | 61 00 56.56 (0.03) | 61 01 04.80 | 61 00 56.21 | 61 01 07.38 (0.02) | 61 00 56.56 | 61 01 26.04 | ||||||||||||||
| Spectral type | DA | DA | DA | DA | DAH | DAP | DAP | DBA | DA | DA10.5 | DA | DA | DA | DC: | DA10 | DA | ||||||
| Effective temperature | [K] | 4823.0 (22) | 5000.0 (51) | 4945.0 (6) | 4795.8 (11) | 4865.0 (20) | 4849.0 | 4921.0 (11) | 4780.0 (140) | 4880.0 (49) | 4919.0 | 4919.0 (73) | 4780.0 (140) | 4854.0 (12) | ||||||||
| log(g) | [cgs] | 7.76 (0.02) | 7.93 (0.3) | 7.85 (0.003) | 7.75 (0.009) | 7.79 (0.02) | 7.76 | 7.96 (0.09) | 7.93 (0.09) | 7.97 (0.09) | 7.83 (0.09) | 7.76 (0.006) | ||||||||||
| Mass | [M☉] | 0.458 (0.008) | 0.5386259707344726 (0.4) | 0.495 (0.003) | 0.461 (0.009) | 0.446 | 0.56 (0.05) | 0.48 (0.05) | 0.54 (0.05) | 0.56 (0.05) | 0.48 (0.05) | 0.444 (0.005) | ||||||||||
| log(Luminosity) | [L☉] | -4.05 | -4.06 | -4.03 (0.04) | ||||||||||||||||||
| Cooling age | [Gyr] | 4.3400 | 4.0400 (0.2) | 3.8380 | 5.6000 | 5.6800 | 4.6800 (0.9) | |||||||||||||||
| 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] | 72.95 (0.02) | 72.95 (0.02) | 72.92 (0.03) | 72.92 (0.03) | 72.92 (0.03) | 72.92 (0.03) | 78.20 (4) | 78.20 (4) | 78.20 (4) | 78.20 (4) | 78.20 (4) | 72.95 | 72.95 (0.02) | 72.92 (0.03) | 78.10 (4) | ||||||
| Distance | [pc] | 13.71 (0.004) | 13.71 (0.004) | 13.71 (0.006) | 13.71 (0.005) | 13.71 (0.005) | 13.71 (0.005) | 12.79 (0.7) | 12.80 (2) | 12.78 | 12.80 (0.7) | 12.79 | 12.79 (0.7) | 13.71 | 13.71 (0.004) | 13.71 (0.005) | 12.80 (0.7) | |||||
| Composition | H | H | He | H | He | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 147.9395062 (0.03) | 147.8998134 (0.06) | 147.94 (0.03) | 147.8998134 | |||||||||||||||||
| Proper motion (declination) | [mas/yr] | -698.5114418 (0.03) | -698.5342574 (0.05) | -698.511 (0.03) | -698.5342574 | |||||||||||||||||
| Variability | VAR | |||||||||||||||||||||
| Magnetic | yes | |||||||||||||||||||||
| Bd | [MG] | <0.1 | <0.1 | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||
| B magnitude | 16.67 | 16.67 | 16.62 | |||||||||||||||||||
| V magnitude | 15.67 | 15.69 | 15.69 | |||||||||||||||||||
| R magnitude | 15.15 | 15.15 | 15.00 | |||||||||||||||||||
| I magnitude | 14.64 | 14.64 | ||||||||||||||||||||
| J magnitude | 14.07 (0.03) | 14.07 (0.03) | 14.07 | 13.96 | 14.07 (0.03) | |||||||||||||||||
| H magnitude | 13.81 (0.03) | 13.81 (0.03) | 13.81 | 13.73 | 13.81 (0.03) | |||||||||||||||||
| K magnitude | 13.80 (0.05) | 13.80 (0.05) | 13.80 | 13.65 | 13.80 (0.05) | |||||||||||||||||
| u magnitude | ||||||||||||||||||||||
| g magnitude | 16.03 (0.003) | |||||||||||||||||||||
| r magnitude | 15.37 (0.002) | |||||||||||||||||||||
| i magnitude | 15.09 (0.006) | |||||||||||||||||||||
| z magnitude | 14.99 (0.003) | |||||||||||||||||||||
| G magnitude | 15.40 (0.003) | 15.41 | 15.41 | 15.40 | 15.40 (0.003) | 15.41 | ||||||||||||||||
| BP magnitude | 15.90 (0.003) | 15.92 | 15.92 | |||||||||||||||||||
| RP magnitude | 14.74 (0.001) | 14.75 | 14.75 | |||||||||||||||||||
| Pan g magnitude | 16.03 (0.006) | 16.03 (0.003) | 16.03 (0.003) | |||||||||||||||||||
| Pan r magnitude | 15.36 (9e-05) | 15.36 (7e-05) | 15.37 (0.002) | |||||||||||||||||||
| Pan i magnitude | 15.09 (0.002) | 15.09 (0.002) | 15.09 (0.006) | |||||||||||||||||||
| Pan z magnitude | 14.98 (0.002) | 14.98 (0.002) | 14.99 (0.003) | |||||||||||||||||||
| Pan y magnitude | 14.95 (0.003) | 14.95 (0.003) | 14.94 (0.005) | |||||||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||||||||
* Constant surface field
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