All names: LAMOST J212920.56+295806.8, 2MASS J21292056+2958066, TIC 15300006, WISEA J212920.56+295806.6, UCAC4 600-130602, LAMOSTJ212920.56+295806.8, WISE J212920.56+295806.6, Gaia DR3 1850084998438797312, Gaia DR2 1850084998438797312
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 29 20.56 | 21 29 20.57 (0.02) | ||
| Declination | 29 58 06.88 | 29 58 06.83 (0.02) | ||
| Spectral type | sdOB | sdOB | ||
| Effective temperature | [K] | 34963.0 (65) | ||
| log(g) | [cgs] | 6.02 (0.02) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.74 (0.04) | 1.70 (0.03) | |
| Distance | [pc] | 573.99 (12) | 589.45 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.026 (0.07) | -3.783 (0.02) | |
| Proper motion (declination) | [mas/yr] | 5.194 (0.07) | 5.271 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.01 (0.03) | |||
| V magnitude | 14.11 (0.01) | |||
| R magnitude | 14.42 (0.06) | |||
| I magnitude | ||||
| J magnitude | 14.42 (0.03) | 14.42 (0.03) | ||
| H magnitude | 14.48 (0.06) | 14.48 (0.06) | ||
| K magnitude | 14.72 (0.1) | 14.72 (0.1) | ||
| u magnitude | ||||
| g magnitude | 13.93 (0.01) | |||
| r magnitude | 14.30 (0.02) | |||
| i magnitude | 14.50 (0.05) | |||
| z magnitude | ||||
| G magnitude | 14.10 (0.0005) | 14.09 (0.003) | ||
| BP magnitude | 13.95 (0.005) | |||
| RP magnitude | 14.24 (0.002) | |||
| Pan g magnitude | 13.98 (0.002) | |||
| Pan r magnitude | 14.28 (0.001) | |||
| Pan i magnitude | 14.59 (0.002) | |||
| Pan z magnitude | 14.81 (0.004) | |||
| Pan y magnitude | 14.95 (0.003) | |||
| E(B-V) | 0.095 | |||
* 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.