All names: SDSS J003739.05+000842.35, Gaia DR3 2543193278633873280, Gaia EDR3 2543193278633873280, GALEX J003739.0+000841, SDSS J003739.05+000842.3, Gaia DR2 2543193278633873280
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 00 37 39.05 (0.3) | 00 37 39.05 | 00 37 39.05 (0.4) | 00 37 39.05 (0.3) | ||
| Declination | 00 08 42.27 (0.2) | 00 08 42.36 | 00 08 42.28 (0.3) | 00 08 42.35 (0.2) | ||
| Spectral type | sdA | sdB/sdO | ||||
| Effective temperature | [K] | 7400.0 (44) | ||||
| log(g) | [cgs] | 5.78 (0.1) | ||||
| Mass | [M☉] | 0.15088 (0.0004) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | -0.42 (0.4) | -0.50 (0.6) | |||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -2.366948877 (0.4) | -1.210835064 (1) | -2.367 (0.4) | ||
| Proper motion (declination) | [mas/yr] | -4.587978888 (0.3) | -3.337652387 (0.7) | -4.588 (0.3) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 20.72 (0.06) | 20.71 (0.2) | 20.73 (0.06) | |||
| g magnitude | 19.84 (0.02) | 19.82 (0.4) | 19.84 (0.01) | |||
| r magnitude | 19.75 (0.02) | 19.74 (0.7) | 19.75 (0.02) | |||
| i magnitude | 19.54 (0.02) | 19.54 (0.3) | 19.53 (0.02) | |||
| z magnitude | 20.02 (0.1) | 20.00 (3) | 20.01 (0.1) | |||
| G magnitude | 19.56 (0.05) | 19.60 | 19.56 (0.004) | |||
| BP magnitude | 19.80 (0.05) | 19.58 | ||||
| RP magnitude | 19.31 (0.06) | 19.07 | ||||
| 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.