All names: PG 1505+074, TYC 347-166-1, Gaia DR3 1160486522563096192, GSC 00347-00166, GALEX J150821.2+071313, UCAC2 34295073, Gaia DR2 1160486522563096192, TIC 449903807, UCAC3 195-128582, 2MASS J15082105+0713148, [CW83] 1505+07, BPS BS 16968-0084, PG1505+074, [TFW97] J150821.05+071314.91
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 08 21.04 | 15 08 21.05 (0.05) | ||
| Declination | 07 13 15.03 | 07 13 14.85 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 37100.0 (900) | ||
| log(g) | [cgs] | 5.42 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.78 (0.09) | 1.71 (0.06) | |
| Distance | [pc] | 563.00 (28) | 586.13 (19) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.228 (0.1) | 3.177 (0.06) | |
| Proper motion (declination) | [mas/yr] | -7.764 (0.1) | -7.898 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.00 (0.2) | |||
| V magnitude | 11.92 (0.3) | |||
| R magnitude | 12.95 (0.08) | |||
| I magnitude | ||||
| J magnitude | 13.06 (0.03) | 13.06 (0.03) | ||
| H magnitude | 13.21 (0.02) | 13.21 (0.02) | ||
| K magnitude | 13.30 (0.04) | 13.30 (0.04) | ||
| u magnitude | 11.98 (0.001) | |||
| g magnitude | ||||
| r magnitude | 12.70 (0.001) | |||
| i magnitude | 13.11 (0.002) | |||
| z magnitude | 13.82 (0.009) | |||
| G magnitude | 12.37 (0.0009) | 12.35 (0.003) | ||
| BP magnitude | 12.15 (0.01) | |||
| RP magnitude | 12.67 (0.003) | |||
| Pan g magnitude | 12.09 | |||
| Pan r magnitude | 12.61 | |||
| Pan i magnitude | 12.98 | |||
| Pan z magnitude | 13.29 (0.003) | |||
| Pan y magnitude | 13.48 (0.004) | |||
| E(B-V) | 0.028 | |||
* 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.