All names: Ton241, WISE J153511.15+234718.8, TIC 258033900, WISEA J153511.14+234718.6, LAMOST J153511.21+234718.6, Gaia DR2 1220934996098999552, 2MASS J15351118+2347185, Gaia EDR3 1220934996098999552, SDSS J153511.13+234718.5, PG 1532+239, Ton 241, UCAC4 569-053136, Gaia DR3 1220934996098999552, WD 1532+239, GALEX J153511.2+234718
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 35 11.14 (0.03) | 15 35 11.21 | 15 35 11.14 (0.03) | 15 35 11.14 (0.03) | 15 35 08.02 | |||
| Declination | 23 47 18.54 (0.03) | 23 47 18.69 | 23 47 18.54 (0.04) | 23 47 18.55 (0.03) | 23 47 09.96 | |||
| Spectral type | sdB | sdB | DA | |||||
| Effective temperature | [K] | 26743.0 (743) | ||||||
| log(g) | [cgs] | 5.15 (0.07) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.51 (0.04) | 0.51 (0.05) | 0.51 (0.05) | 0.51 (0.04) | |||
| Distance | [pc] | 1968.26 (166) | 1978.63 (213) | 1978.63 (213) | 1968.12 (166) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.460732425 (0.04) | -1.606 (0.09) | -1.606 (0.09) | -1.461 (0.04) | |||
| Proper motion (declination) | [mas/yr] | -0.675061054 (0.04) | -0.943 (0.08) | -0.943 (0.08) | -0.675 (0.04) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.37 (0.02) | |||||||
| V magnitude | 15.66 (0.02) | |||||||
| R magnitude | 15.83 (0.2) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.06 (0.09) | 16.06 (0.09) | ||||||
| H magnitude | 16.02 (0.2) | 16.02 (0.2) | ||||||
| K magnitude | 17.14 | |||||||
| u magnitude | 15.22 (0.004) | |||||||
| g magnitude | 15.32 (0.003) | |||||||
| r magnitude | 15.79 (0.003) | |||||||
| i magnitude | 16.11 (0.004) | |||||||
| z magnitude | 16.40 (0.008) | |||||||
| G magnitude | 15.57 (0.002) | 15.58 (0.0005) | 15.58 | 15.57 (0.003) | ||||
| BP magnitude | 15.45 (0.002) | 15.38 (0.008) | 15.38 | |||||
| RP magnitude | 15.80 (0.003) | 15.79 (0.003) | 15.79 | |||||
| Pan g magnitude | 15.40 (0.001) | 15.40 (0.001) | ||||||
| Pan r magnitude | 15.80 (0.003) | 15.80 (0.004) | ||||||
| Pan i magnitude | 16.13 (0.003) | 16.13 (0.003) | ||||||
| Pan z magnitude | 16.39 (0.004) | 16.39 (0.004) | ||||||
| Pan y magnitude | 16.56 (0.007) | 16.56 (0.006) | ||||||
| E(B-V) | 0.048 | |||||||
* 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.