All names: SDSS J155312.34+070104.3, Gaia EDR3 4430025669359805440, SDSS J155312.34+070104.4, SDSS J155312.34+070104.40, Gaia DR3 4430025669359805440
| Parameter | Unit | Gaia EDR3 | SDSS DR10 | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 15 53 15.64 (0.5) | 15 53 12.34 | 15 53 12.34 | |||
| Declination | 07 02 29.26 (0.4) | 07 01 04.37 | 07 01 04.36 | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 9621.0 (285) | ||||
| log(g) | [cgs] | 8.28 (0.4) | ||||
| Mass | [M☉] | 0.769 (0.2) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 4.84 (0.6) | ||||
| Distance | [pc] | 206.70 (24) | ||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -5.168 (0.7) | ||||
| Proper motion (declination) | [mas/yr] | -15.647 (0.6) | ||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 22.25 (0.2) | 22.23 (0.2) | 22.23 (0.2) | |||
| g magnitude | 21.60 (0.05) | 21.62 (0.05) | 21.60 (0.05) | |||
| r magnitude | 21.57 (0.06) | 21.61 (0.06) | 21.57 (0.06) | |||
| i magnitude | 22.03 (0.2) | 22.04 (0.1) | 22.04 (0.1) | |||
| z magnitude | 21.21 (0.3) | 21.14 (1) | 21.14 (1) | |||
| G magnitude | 20.21 (0.006) | |||||
| BP magnitude | 20.15 (0.06) | |||||
| RP magnitude | 20.01 (0.08) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| 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.