All names: Gaia DR3 4447960529371137664, UCAC4 508-064218, 2MASS J16555412+1124008, PG 1653+115, PG1653+115, UCAC2 35772522, Gaia DR2 4447960529371137664, WISE J165554.13+112400.8, WISEA J165554.13+112400.7, SDSS J165554.13+112400.8, TIC 337517740
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 55 54.11 | 16 55 54.13 (0.03) | ||
| Declination | 11 24 01.10 | 11 24 00.76 (0.03) | ||
| Spectral type | sdOB | sdB | ||
| Effective temperature | [K] | 36739.0 (2000) | ||
| log(g) | [cgs] | 5.23 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.39 (0.07) | 0.51 (0.04) | |
| Distance | [pc] | 2566.08 (436) | 1968.89 (169) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.704 (0.1) | 4.001 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.125 (0.1) | -3.631 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.53 (0) | |||
| V magnitude | 14.72 (0.01) | |||
| R magnitude | 15.05 (0.05) | |||
| I magnitude | ||||
| J magnitude | 14.80 (0.04) | 14.80 (0.04) | ||
| H magnitude | 14.60 (0.07) | 14.60 (0.07) | ||
| K magnitude | 14.81 (0.1) | 14.81 (0.1) | ||
| u magnitude | 14.24 (0.003) | 14.24 (0.003) | ||
| g magnitude | 14.44 (0.003) | 14.44 (0.003) | ||
| r magnitude | 14.85 (0.003) | 14.85 (0.003) | ||
| i magnitude | 15.09 (0.003) | 15.09 (0.003) | ||
| z magnitude | 15.30 (0.005) | 15.30 (0.005) | ||
| G magnitude | 14.66 (0.0006) | 14.65 (0.003) | ||
| BP magnitude | 14.50 (0.009) | |||
| RP magnitude | 14.76 (0.003) | |||
| Pan g magnitude | 14.54 (0.008) | |||
| Pan r magnitude | 14.87 (0.001) | |||
| Pan i magnitude | 15.11 (0.001) | |||
| Pan z magnitude | 15.29 (0.005) | |||
| Pan y magnitude | 15.41 (0.005) | |||
| E(B-V) | 0.060 | |||
* 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.