All names: UCAC4 589-052571, SDSS J151613.21+273854.8, SDSSJ151613.21+273854.9, Gaia DR3 1271587607005565440, TIC 357416558, SDSS J151613.20+273854.8, LAMOST J151613.21+273854.7, Gaia DR2 1271587607005565440, Ton 225, GALEX J151613.2+273854, 2MASS J15161321+2738555
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 15 16 13.21 | 15 16 13.21 (0.03) | |
| Declination | 27 38 54.90 | 27 38 54.92 (0.04) | |
| Spectral type | sdO | sdO+F8V | |
| Effective temperature | [K] | 47463.0 (2000) | |
| log(g) | [cgs] | 6.11 (0.2) | |
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | -0.10 (0.08) | 0.14 (0.05) |
| Distance | [pc] | 6963.79 (2493) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -2.103 (0.1) | -2.27 (0.04) |
| Proper motion (declination) | [mas/yr] | -13.457 (0.1) | -13.647 (0.04) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.43 (0.1) | ||
| V magnitude | 16.59 (0.06) | ||
| R magnitude | 16.55 (0.3) | ||
| I magnitude | |||
| J magnitude | 16.36 (0.1) | 16.36 (0.1) | |
| H magnitude | 16.25 (0.2) | 16.25 (0.2) | |
| K magnitude | 15.94 | ||
| u magnitude | 15.96 (0.005) | 15.96 (0.005) | |
| g magnitude | 16.31 (0.004) | 16.31 (0.004) | |
| r magnitude | 16.72 (0.005) | 16.72 (0.005) | |
| i magnitude | 16.94 (0.005) | 16.94 (0.005) | |
| z magnitude | 17.11 (0.01) | 17.11 (0.01) | |
| G magnitude | 16.50 (0.001) | 16.48 (0.003) | |
| BP magnitude | 16.29 (0.01) | ||
| RP magnitude | 16.59 (0.003) | ||
| Pan g magnitude | 16.40 (0.005) | ||
| Pan r magnitude | 16.71 (0.002) | ||
| Pan i magnitude | 16.93 (0.003) | ||
| Pan z magnitude | 17.10 (0.005) | ||
| Pan y magnitude | 17.20 (0.01) | ||
| E(B-V) | |||
* 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.