All names: SDSS J165355.42+131244.2, Gaia DR3 4449213040618048384, GALEX J165355.4+131244, SDSS J165355.43+131244.2, Gaia DR2 4449213040618048384, Gaia EDR3 4449213040618048384, SDSS J165355.43+131244.28, SDSSJ165355.43+131244.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 53 55.42 (0.1) | 16 53 55.43 | 16 53 55.43 | 16 53 55.42 (0.2) | 16 53 55.43 (0.1) | ||||
| Declination | 13 12 44.08 (0.1) | 13 12 44.28 | 13 12 44.30 | 13 12 44.09 (0.2) | 13 12 44.27 (0.1) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 29172.0 (1108) | 30434.0 (209) | ||||||
| log(g) | [cgs] | 5.60 (0.2) | 5.59 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.42 (0.1) | 0.31 (0.2) | 0.31 (0.2) | 0.42 (0.1) | ||||
| Distance | [pc] | 2398.49 (832) | 3260.52 (2500) | 3260.55 (2500) | 2398.66 (833) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.135226268 (0.1) | -3.822 (0.3) | -3.821571413 (0.3) | -4.135 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -11.76520817 (0.1) | -11.571 (0.3) | -11.5709083 (0.3) | -11.765 (0.1) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.96 (0.01) | 17.97 (0.01) | 17.97 (0.02) | 17.97 (0.01) | |||||
| g magnitude | 18.09 (0.006) | 18.09 (0.006) | 18.10 (0.01) | 18.09 (0.006) | |||||
| r magnitude | 18.49 (0.009) | 18.50 (0.009) | 18.51 (0.02) | 18.50 (0.009) | |||||
| i magnitude | 18.80 (0.01) | 18.81 (0.01) | 18.81 (0.01) | 18.81 (0.01) | |||||
| z magnitude | 19.07 (0.04) | 19.08 (0.04) | 19.09 (0.04) | 19.08 (0.04) | |||||
| G magnitude | 18.25 (0.01) | 18.29 (0.002) | 18.29 | 18.25 (0.003) | |||||
| BP magnitude | 18.14 (0.01) | 18.10 (0.02) | 18.10 | ||||||
| RP magnitude | 18.48 (0.02) | 18.46 (0.02) | 18.46 | ||||||
| Pan g magnitude | 18.12 (0.005) | 18.11 (0.005) | |||||||
| Pan r magnitude | 18.47 (0.007) | 18.47 (0.007) | |||||||
| Pan i magnitude | 18.81 (0.008) | 18.81 (0.008) | |||||||
| Pan z magnitude | 19.06 (0.01) | 19.06 (0.01) | |||||||
| Pan y magnitude | 19.19 (0.03) | 19.19 (0.03) | |||||||
| E(B-V) | 0.061 | ||||||||
* 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.