All names: Gaia DR3 1930730736063648896, FBS 2301+415, FBS B 415, 2MASS J23035667+4149059, FBS2301+415, TIC 373934409, Gaia DR2 1930730736063648896, TYC 3224-2704-1, Gaia DR1 1930730736063648896
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 03 56.69 | 23 03 56.67 (0.02) | ||
| Declination | 41 49 07.30 | 41 49 05.91 (0.03) | ||
| Spectral type | sd | sdOA | ||
| 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] | 0.35 (0.05) | 0.25 (0.04) | |
| Distance | [pc] | 2897.71 (382) | 3954.13 (580) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.159 (0.06) | -4.13 (0.02) | |
| Proper motion (declination) | [mas/yr] | -10.713 (0.05) | -10.791 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.99 (0.06) | |||
| V magnitude | 12.11 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 12.33 (0.02) | 12.33 (0.02) | ||
| H magnitude | 12.43 (0.03) | 12.43 (0.03) | ||
| K magnitude | 12.43 (0.03) | 12.43 (0.03) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.15 (0.0005) | 12.14 (0.003) | ||
| BP magnitude | 12.06 (0.003) | |||
| RP magnitude | 12.21 (0.002) | |||
| Pan g magnitude | 11.87 | |||
| Pan r magnitude | 12.22 | |||
| Pan i magnitude | 12.51 | |||
| Pan z magnitude | 12.72 | |||
| Pan y magnitude | 12.85 (0.004) | |||
| E(B-V) | 0.109 | |||
* 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.