All names: GJ 754.1 B, NLTT 47691, CSI-07-19179 2, UCAC3 165-258096, ** LDS 678B, uvby98 600107659, UBV 16350, LTT 7659, Zkh 292, UCAC2 29177674, TIC 3567372, LDS678B, [RHG95] 3044, L 923-22, NSV 11919, UCAC4 412-113452, USNO 68, VVO 419, Gaia EDR3 4201781696994082944, LP 692-15, StKM 2-1405, WDS J19206-0740B, Gaia DR2 4201781696994082944, WISEP J192033.38-073945.4, 2MASS J19203346-0739435, PM J19205-0739, IDS 19152-0751 B
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 1982a | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 19 20 33.38 (0.03) | 19 20 33.39 (0.06) | 19 20 33.46 (0.06) | |||
| Declination | -07 39 46.60 (0.02) | -07 39 46.51 (0.06) | -07 39 43.76 (0.06) | |||
| Spectral type | DC | M5V | ||||
| Effective temperature | [K] | 9700.0 (500) | ||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | 0.42 (0.09) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | -6 | |||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 95.18 (0.03) | 95.18 (0.08) | 0.10 | 95.18 (0.08) | |
| Distance | [pc] | 10.51 (0.003) | 10.51 (0.009) | 10204.08 | 10.51 (0.009) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -70.59099364 (0.03) | -70.35680936 (0.1) | -70.357 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -177.9740371 (0.02) | -177.68284 (0.1) | -177.683 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 13.18 (0.01) | |||||
| V magnitude | 11.68 (0.01) | |||||
| R magnitude | 11.85 (0.07) | |||||
| I magnitude | ||||||
| J magnitude | 8.22 (0.03) | |||||
| H magnitude | 7.66 (0.03) | |||||
| K magnitude | 7.41 (0.02) | |||||
| u magnitude | ||||||
| g magnitude | 12.42 (0.01) | |||||
| r magnitude | 11.13 (0.01) | |||||
| i magnitude | 9.93 (0.01) | |||||
| z magnitude | ||||||
| G magnitude | 10.97 (0.002) | 10.97 | 10.97 (0.0009) | |||
| BP magnitude | 12.37 (0.002) | 12.39 | ||||
| RP magnitude | 9.81 (0.0008) | 9.82 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.000 | |||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.