GJ 4166
All names: Gaia DR3 1844125748497557632, LSPM J2050+2630, PLX 4982.01, G187-8, WD 2048+263, USNO-B1.0 1165-00529089, GEN# +9.80187008, NLTT 49991, ** WSI 119A, WDS J20503+2631A, USNO 673, PM J20503+2630, WDJ205020.65+263040.76, J2050+2630, uvby98 980187008, WD 2048+26, GJ 4166, G 187-8, Gaia EDR3 1844125748497557632, CNS5 5151, Gaia DR2 1844125748497557632, 2MASS J20502065+2630408, LHS 3589, PSO J312.5846+26.5104, 20503+2630, UCAC4 583-114414, TIC 282928210
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Zuckerman et al. 2003 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 50 20.16 (0.02) | 20 50 20.17 (0.04) | 20 50 20.17 (0.04) | 20 50 20.64 | 20 50 20.16 | 20 50 20.65 (0.02) | 20 50 20.17 | 20 50 22.25 | ||||||||||||||
| Declination | 26 30 35.95 (0.02) | 26 30 36.10 (0.03) | 26 30 36.10 (0.03) | 26 30 39.60 | 26 30 35.95 | 26 30 40.77 (0.02) | 26 30 36.10 | 26 30 50.76 | ||||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DC | DA9.7 | DA | DA | DA | DC: | DA9 | DC9 | ||||||||
| Effective temperature | [K] | 4909.0 (19) | 4958.0 (7) | 4895.0 (11) | 4930.0 (25) | 4938.0 | 5073.0 (76) | 4940.0 (69) | 5200.0 | 5073.0 (76) | 5200.0 | 5200.0 (110) | 5200.0 (110) | 4897.0 (9) | ||||||||
| log(g) | [cgs] | 7.27 (0.02) | 7.28 (0.003) | 7.27 (0.01) | 7.23 (0.02) | 7.23 | 7.25 (0.1) | 7.11 (0.1) | 7.25 (0.1) | 7.31 | 7.31 (0.1) | 7.31 (0.1) | 7.16 (0.006) | |||||||||
| Mass | [M☉] | 0.267 (0.004) | 0.245 (0.002) | 0.232 (0.006) | 0.231 | 0.25 (0.04) | 0.2 (0.04) | 0.24 (0.04) | 0.26 (0.04) | 0.26 (0.04) | 0.212 (0.003) | |||||||||||
| log(Luminosity) | [L☉] | -3.64 | -3.65 | -3.64 (0.06) | -3.64 (0.06) | |||||||||||||||||
| Cooling age | [Gyr] | 1.7700 | 1.7830 (0.05) | 1.7690 | 1.6700 | 1.6000 | 1.5300 (0.1) | 1.5800 (0.2) | ||||||||||||||
| log(H/He) | ||||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||||
| log(Ca/H) | <-12.364 | |||||||||||||||||||||
| 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] | 52.24 (0.03) | 52.24 (0.03) | 52.35 (0.05) | 52.35 (0.05) | 52.35 (0.05) | 52.35 (0.05) | 49.80 (3) | 49.80 (3) | 49.80 (3) | 49.80 (3) | 49.80 (3) | 49.80 (3) | 52.24 | 52.24 (0.03) | 52.35 (0.05) | 50.00 (3) | |||||
| Distance | [pc] | 19.14 (0.01) | 19.14 (0.01) | 19.10 (0.02) | 19.10 (0.02) | 19.10 (0.02) | 19.10 (0.02) | 20.08 (1) | 20.10 (3) | 20.08 | 20.10 (1) | 19.89 | 20.08 (1) | 20.08 (1) | 19.14 | 19.14 (0.01) | 19.10 (0.02) | 20.00 (1) | ||||
| Composition | H | H | H | H | H | H | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -414.8342388 (0.03) | -414.9168968 (0.07) | -414.834 (0.03) | -414.9168968 | |||||||||||||||||
| Proper motion (declination) | [mas/yr] | -301.1406532 (0.03) | -300.9471484 (0.05) | -301.141 (0.03) | -300.9471484 | |||||||||||||||||
| Variability | ||||||||||||||||||||||
| Magnetic | ||||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||
| Binarity | WDMS | |||||||||||||||||||||
| B magnitude | 16.55 | 16.55 | 16.55 | |||||||||||||||||||
| V magnitude | 15.61 | 15.63 | 15.63 | 15.63 | ||||||||||||||||||
| R magnitude | 15.11 | 15.11 | 15.11 | 15.30 (0.09) | ||||||||||||||||||
| I magnitude | 14.63 | 14.63 | 14.63 | |||||||||||||||||||
| J magnitude | 14.12 (0.03) | 14.10 (0.06) | 14.12 | 14.00 | 14.12 | 14.12 | 14.10 (0.06) | |||||||||||||||
| H magnitude | 13.83 (0.03) | 13.91 (0.07) | 13.83 | 13.64 | 13.83 | 13.83 | 13.91 (0.07) | |||||||||||||||
| K magnitude | 13.79 (0.03) | 13.79 | 13.52 | 13.79 | 13.79 | |||||||||||||||||
| u magnitude | 17.70 (0.01) | 17.70 (0.01) | ||||||||||||||||||||
| g magnitude | 15.99 (0.004) | 16.04 (0.003) | ||||||||||||||||||||
| r magnitude | 15.39 (0.003) | 15.34 (0.004) | ||||||||||||||||||||
| i magnitude | 15.12 (0.003) | 15.06 (0.004) | ||||||||||||||||||||
| z magnitude | 15.03 (0.005) | 14.95 (0.005) | ||||||||||||||||||||
| G magnitude | 15.39 (0.002) | 15.40 | 15.40 | 15.39 | 15.39 (0.003) | 15.40 | ||||||||||||||||
| BP magnitude | 15.88 (0.002) | 15.90 | 15.90 | |||||||||||||||||||
| RP magnitude | 14.75 (0.001) | 14.76 | 14.76 | |||||||||||||||||||
| Pan g magnitude | 15.99 (0.003) | 16.00 (0.004) | 16.00 (0.004) | |||||||||||||||||||
| Pan r magnitude | 15.39 (0.003) | 15.39 (0.003) | 15.39 (0.003) | |||||||||||||||||||
| Pan i magnitude | 15.12 (0.003) | 15.12 (0.002) | 15.12 (0.002) | |||||||||||||||||||
| Pan z magnitude | 15.03 (0.004) | 15.02 (0.0002) | 15.02 (0) | |||||||||||||||||||
| Pan y magnitude | 14.98 (0.006) | 14.98 (0.005) | 14.98 (0.005) | |||||||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
