All names: SDSS J175421.68+400932.1, Gaia DR2 4611122626094849792, TIC 159773860, SDSSJ175421.68+400932.1, GALEX J175421.6+400932, 2MASS J17542162+4009328, Gaia DR3 4611122626094849792
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 54 21.69 | 17 54 21.69 (0.03) | ||
| Declination | 40 09 32.14 | 40 09 32.16 (0.04) | ||
| Spectral type | sd | sd+G/K | ||
| 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] | 0.33 (0.07) | 0.31 (0.04) | |
| Distance | [pc] | 3022.06 (606) | 3206.16 (404) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.053 (0.1) | -3.632 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.538 (0.1) | -6.424 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.59 (0.1) | 16.59 (0.1) | ||
| H magnitude | 16.04 (0.2) | 16.04 (0.2) | ||
| K magnitude | 16.00 (0.2) | 16.00 (0.2) | ||
| u magnitude | 16.10 (0.005) | 16.13 (0.01) | ||
| g magnitude | 16.16 (0.003) | 16.18 (0.02) | ||
| r magnitude | 16.55 (0.004) | 16.57 (0.01) | ||
| i magnitude | 16.79 (0.005) | 16.79 (0.01) | ||
| z magnitude | 16.94 (0.01) | 16.96 (0.02) | ||
| G magnitude | 16.39 (0.002) | 16.36 (0.003) | ||
| BP magnitude | 16.24 (0.008) | |||
| RP magnitude | 16.49 (0.005) | |||
| Pan g magnitude | 16.25 (0.006) | |||
| Pan r magnitude | 16.58 (0.003) | |||
| Pan i magnitude | 16.83 (0.001) | |||
| Pan z magnitude | 16.99 (0.007) | |||
| Pan y magnitude | 17.10 (0.006) | |||
| E(B-V) | 0.032 | |||
* 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.