All names: TIC 302036827, Gaia EDR3 2771509999172112896, PG2346+149, UCAC4 527-150223, UCAC2 37293878, Gaia DR3 2771509999172112896, GALEX J234853.5+151216, PG 2346+149, SDSS J234853.52+151215.5, Gaia DR2 2771509999172112896, SDSS J234853.51+151215.5, 2MASS J23485355+1512152
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 48 53.53 (0.08) | 23 48 53.52 | 23 48 53.50 | 23 48 53.53 (0.1) | 23 48 53.52 (0.08) | 23 48 53.52 | |||
| Declination | 15 12 15.43 (0.06) | 15 12 15.55 | 15 12 15.95 | 15 12 15.44 (0.06) | 15 12 15.57 (0.06) | 15 12 15.55 | |||
| Spectral type | sdB | sdB | SD_auto | ||||||
| Effective temperature | [K] | 29141.0 (1073) | 28784.0 (444) | ||||||
| log(g) | [cgs] | 5.45 (0.2) | 5.15 (0.1) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.49 (0.1) | 0.45 (0.1) | 0.45 (0.1) | 0.49 (0.1) | ||||
| Distance | [pc] | 2021.19 (400) | 2216.31 (657) | 2216.48 (657) | 2021.02 (399) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 3.999242103 (0.1) | 4.677 (0.3) | 4.677453383 (0.3) | 3.999 (0.1) | 2.6 | |||
| Proper motion (declination) | [mas/yr] | -8.248003856 (0.07) | -7.741 (0.1) | -7.74075016 (0.1) | -8.248 (0.07) | -6.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.60 (0.02) | ||||||||
| V magnitude | 15.70 (0.04) | ||||||||
| R magnitude | 15.90 (0.09) | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.00 (0.07) | 16.00 (0.07) | |||||||
| H magnitude | 15.67 (0.1) | 15.67 (0.1) | |||||||
| K magnitude | 15.68 (0.2) | 15.68 (0.2) | |||||||
| u magnitude | 15.29 (0.005) | 15.29 (0.005) | 15.29 (0.005) | 15.29 (0.02) | |||||
| g magnitude | 15.42 (0.004) | 15.43 (0.004) | 15.43 (0.004) | 15.46 (0.03) | |||||
| r magnitude | 15.87 (0.005) | 15.87 (0.005) | 15.88 (0.005) | 15.89 (0.02) | |||||
| i magnitude | 16.12 (0.005) | 16.12 (0.005) | 16.13 (0.005) | 16.16 (0.02) | |||||
| z magnitude | 16.36 (0.009) | 16.36 (0.009) | 16.37 (0.009) | 16.39 (0.02) | |||||
| G magnitude | 15.67 (0.002) | 15.67 (0.001) | 15.67 | 15.67 (0.003) | |||||
| BP magnitude | 15.54 (0.002) | 15.50 (0.005) | 15.50 | ||||||
| RP magnitude | 15.82 (0.003) | 15.83 (0.003) | 15.83 | ||||||
| Pan g magnitude | 15.51 (0.005) | 15.53 (0.01) | |||||||
| Pan r magnitude | 15.90 (0.003) | 15.86 (0.003) | |||||||
| Pan i magnitude | 16.19 (0.003) | 16.16 (0.005) | |||||||
| Pan z magnitude | 16.40 (0.003) | ||||||||
| Pan y magnitude | 16.52 (0.01) | ||||||||
| E(B-V) | 0.049 | ||||||||
* 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.