All names: 2MASS J15242724+1202079, GALEX J152427.2+120208, Gaia DR2 1169613057485519232, SDSS J152427.24+120207.6, PG 1522+122, [DWS97] Ser 2, SDSSJ152427.24+120207.6, Gaia DR3 1169613057485519232, TIC 400043970, SDSS J152427.23+120207.6, Gaia EDR3 1169613057485519232
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 24 27.23 (0.06) | 15 24 27.24 | 15 24 27.24 (0.06) | ||
| Declination | 12 02 07.56 (0.05) | 12 02 07.60 | 12 02 07.53 (0.06) | ||
| Spectral type | sdB | sdB1.5He7 | |||
| Effective temperature | [K] | 30530.0 (983) | |||
| log(g) | [cgs] | 5.67 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.60 (0.07) | 0.43 (0.09) | 0.60 (0.07) | |
| Distance | [pc] | 1675.32 (201) | 2315.35 (459) | 1675.32 (201) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -12.129 (0.08) | -12.116 (0.1) | -12.129 (0.08) | |
| Proper motion (declination) | [mas/yr] | 1.951 (0.07) | 2.266 (0.1) | 1.951 (0.07) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.13 | ||||
| V magnitude | 16.18 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.73 (0.2) | 16.73 (0.2) | |||
| H magnitude | 17.75 | ||||
| K magnitude | 15.93 | ||||
| u magnitude | 15.78 (0.005) | 15.78 (0.005) | |||
| g magnitude | 15.93 (0.003) | 15.93 (0.003) | |||
| r magnitude | 16.40 (0.004) | 16.40 (0.004) | |||
| i magnitude | 16.75 (0.005) | 16.75 (0.005) | |||
| z magnitude | 17.05 (0.01) | 17.05 (0.01) | |||
| G magnitude | 16.17 (0.003) | 16.20 (0.002) | 16.17 (0.003) | ||
| BP magnitude | 16.04 (0.004) | 15.98 (0.007) | |||
| RP magnitude | 16.43 (0.007) | 16.41 (0.004) | |||
| Pan g magnitude | 16.02 (0.002) | ||||
| Pan r magnitude | 16.41 (0.002) | ||||
| Pan i magnitude | 16.76 (0.003) | ||||
| Pan z magnitude | 17.02 (0.006) | ||||
| Pan y magnitude | 17.20 (0.006) | ||||
| E(B-V) | 0.031 | ||||
* 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.