All names: DENIS J191504.1-423504, GALEX J191504.3-423502, 2MASS J19150411-4235044, WISE J191504.08-423504.3, Gaia DR2 6713132053718884480, UCAC2 13665953, UCAC4 238-169825, WISEA J191504.08-423504.3, GALEXJ19150-4235, TIC 61621625, Gaia DR3 6713132053718884480
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 15 04.33 | 19 15 04.10 (0.03) | ||
| Declination | -42 35 02.92 | -42 35 04.37 (0.03) | ||
| Spectral type | He-sdOB | sdO8.5VIIHe40 | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.84 (0.07) | 0.88 (0.04) | |
| Distance | [pc] | 1189.20 (93) | 1135.85 (56) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.09 (0.1) | -9.005 (0.04) | |
| Proper motion (declination) | [mas/yr] | -15.009 (0.09) | -15.132 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.86 (0.03) | |||
| V magnitude | 14.09 (0.02) | |||
| R magnitude | 14.33 (0.1) | |||
| I magnitude | 14.20 (1) | |||
| J magnitude | 14.63 (0.04) | 14.63 (0.04) | ||
| H magnitude | 14.70 (0.07) | 14.70 (0.07) | ||
| K magnitude | 14.74 (0.1) | 14.74 (0.1) | ||
| u magnitude | ||||
| g magnitude | 13.87 (0.01) | |||
| r magnitude | 14.30 (0.05) | |||
| i magnitude | 14.70 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.01 (0.0009) | 13.99 (0.003) | ||
| BP magnitude | 13.82 (0.01) | |||
| RP magnitude | 14.21 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.082 | |||
* 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.