All names: Gaia DR2 3598151393876907904, PG1207-032, PG 1207-033, SDSS J120936.07-033307.5, WD 1207-032, [TFW97] J120936.08-033307.78, HIDDEN NAME PG 1207-032, TIC 56762466, LAMOST J120936.07-033307.5, UCAC4 433-056885, 2MASS J12093607-0333077, Gaia EDR3 3598151393876907904, GALEX J120936.0-033304, TYC 4942-462-1, 1SWASP J120936.01-033307.6, Gaia DR3 3598151393876907904, GJ 3705
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 12 09 36.09 (0.04) | 12 09 36.04 | 12 09 36.09 (0.07) | 12 09 36.08 (0.04) | 12 09 34.90 | ||
| Declination | -03 33 07.67 (0.04) | -03 33 07.99 | -03 33 07.67 (0.06) | -03 33 07.57 (0.04) | -03 33 11.52 | ||
| Spectral type | sdB | sdB | DA4 | ||||
| Effective temperature | [K] | 35693.0 (500) | |||||
| log(g) | [cgs] | 5.82 (0.05) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 2.11 (0.05) | 1.70 (0.07) | 1.70 (0.07) | 2.11 (0.05) | ||
| Distance | [pc] | 474.70 (11) | 586.61 (26) | 586.63 (26) | 474.70 (11) | ||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 9.949236834 (0.05) | 9.71 (0.1) | 9.710007973 (0.1) | 9.949 (0.05) | ||
| Proper motion (declination) | [mas/yr] | -5.985930573 (0.04) | -5.725 (0.1) | -5.725273655 (0.1) | -5.986 (0.04) | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 12.49 (0.2) | ||||||
| V magnitude | 12.64 (0.3) | ||||||
| R magnitude | 13.79 (0.1) | ||||||
| I magnitude | |||||||
| J magnitude | 14.04 (0.03) | 14.04 (0.03) | |||||
| H magnitude | 14.17 (0.03) | 14.17 (0.03) | |||||
| K magnitude | 14.21 (0.07) | 14.21 (0.07) | |||||
| u magnitude | 12.78 (0.003) | 12.75 (0.002) | |||||
| g magnitude | 15.11 (0.01) | ||||||
| r magnitude | 13.57 (0.003) | 13.59 (0.003) | |||||
| i magnitude | 13.90 (0.003) | 13.92 (0.003) | |||||
| z magnitude | 14.24 (0.004) | 14.28 (0.004) | |||||
| G magnitude | 13.33 (0.001) | 13.34 (0.0004) | 13.34 | 13.33 (0.003) | |||
| BP magnitude | 13.18 (0.001) | 13.12 (0.006) | 13.12 | ||||
| RP magnitude | 13.63 (0.0007) | 13.63 (0.001) | 13.63 | ||||
| Pan g magnitude | 13.05 | ||||||
| Pan r magnitude | 13.60 (0.007) | ||||||
| Pan i magnitude | 13.97 (0.001) | ||||||
| Pan z magnitude | 14.25 (0.004) | ||||||
| Pan y magnitude | 14.45 (0.006) | ||||||
| E(B-V) | 0.027 | ||||||
* 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.