All names: UCAC2 33764451, TIC 460381213, SDSS J150449.57+055439.7, Gaia DR3 1159862966326973440, PG1502+061, Gaia DR2 1159862966326973440, PG 1502+061, UCAC4 480-055971, 2MASS J15044954+0554396
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 04 49.59 | 15 04 49.57 (0.04) | ||
| Declination | 05 54 39.90 | 05 54 39.80 (0.04) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.47 (0.06) | 0.51 (0.05) | |
| Distance | [pc] | 2113.72 (273) | 1950.46 (177) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.698 (0.1) | -4.707 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.097 (0.1) | -2.079 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.02 (0.06) | |||
| V magnitude | 15.20 (0.06) | |||
| R magnitude | 15.42 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.66 (0.06) | 15.66 (0.06) | ||
| H magnitude | 15.95 (0.1) | 15.95 (0.1) | ||
| K magnitude | 15.41 | |||
| u magnitude | 14.81 (0.005) | |||
| g magnitude | 14.85 (0.004) | |||
| r magnitude | 15.35 (0.005) | |||
| i magnitude | 15.67 (0.006) | |||
| z magnitude | 15.96 (0.007) | |||
| G magnitude | 15.14 (0.0008) | 15.12 (0.003) | ||
| BP magnitude | 14.96 (0.005) | |||
| RP magnitude | 15.35 (0.004) | |||
| Pan g magnitude | 14.96 (0.01) | |||
| Pan r magnitude | 15.36 (0.002) | |||
| Pan i magnitude | 15.69 (0.0008) | |||
| Pan z magnitude | 15.96 (0.006) | |||
| Pan y magnitude | 16.11 (0.008) | |||
| E(B-V) | 0.029 | |||
* 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.