All names: [TFW97] J154609.00+250740.62, PG 1544+253, Ton 803, FB 161, GSC 02036-01537, uvby98 610070803, GALEX J154609.0+250740, PG1544+253, TIC 283891803, UBV 13437, UBV M 43173, Gaia DR3 1222767813259931776, GEN# +6.10070803, 2MASS J15460900+2507408, CSI+25-15440, Gaia DR2 1222767813259931776, UCAC4 576-053375
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 46 09.02 | 15 46 09.01 (0.02) | ||
| Declination | 25 07 40.96 | 25 07 40.75 (0.03) | ||
| Spectral type | He-sdO | sdOBHe | ||
| 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] | 0.79 (0.05) | 0.72 (0.04) | |
| Distance | [pc] | 1272.91 (82) | 1382.74 (73) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.953 (0.06) | -2.893 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.239 (0.07) | -2.001 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.88 (0.06) | |||
| V magnitude | 14.08 (0.04) | |||
| R magnitude | 14.46 (0.3) | |||
| I magnitude | ||||
| J magnitude | 14.80 (0.04) | 14.80 (0.04) | ||
| H magnitude | 14.98 (0.08) | 14.98 (0.08) | ||
| K magnitude | 14.84 (0.1) | 14.84 (0.1) | ||
| u magnitude | 13.50 (0.004) | |||
| g magnitude | 13.94 (0.09) | |||
| r magnitude | 15.06 (0.01) | 14.33 (0.03) | ||
| i magnitude | 14.67 (0.006) | 14.60 (0.01) | ||
| z magnitude | 15.01 (0.006) | |||
| G magnitude | 14.08 (0.0005) | 14.06 (0.003) | ||
| BP magnitude | 13.84 (0.007) | |||
| RP magnitude | 14.35 (0.001) | |||
| Pan g magnitude | 13.90 (0.003) | |||
| Pan r magnitude | 14.32 (0.002) | |||
| Pan i magnitude | 14.70 (0.001) | |||
| Pan z magnitude | 14.97 (0.003) | |||
| Pan y magnitude | 15.17 (0.006) | |||
| E(B-V) | 0.042 | |||
* 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.