All names: SDSS J093850.71+000702.99, Gaia DR3 3840309342310092928, Gaia EDR3 3840309342310092928, Gaia DR2 3840309342310092928, CRTS J093850.6+000703, SDSS J093850.71+000702.9, ZTF J093850.65+000703.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 38 50.70 (0.2) | 09 38 50.71 | 09 38 50.70 (0.4) | 09 38 50.70 (0.2) | ||||
| Declination | 00 07 03.03 (0.2) | 00 07 03.00 | 00 07 03.03 (0.3) | 00 07 03.04 (0.2) | ||||
| Spectral type | sdA | sdA | ||||||
| Effective temperature | [K] | 7949.0 (30) | ||||||
| log(g) | [cgs] | 5.79 (0.09) | ||||||
| Mass | [M☉] | 0.15128 (0.0003) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.23 (0.3) | 0.64 (0.4) | 0.23 (0.3) | ||||
| Distance | [pc] | 4397.10 (4880) | 1550.91 (1037) | 4397.54 (4881) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 0.176459204 (0.2) | -0.272400262 (0.5) | 0.176 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -0.933953431 (0.2) | -1.270032267 (0.6) | -0.934 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | 18.57 | |||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.17 (0.04) | 20.17 (0.04) | 20.17 (0.04) | |||||
| g magnitude | 18.85 (0.008) | 18.85 (0.02) | 18.85 (0.02) | |||||
| r magnitude | 18.69 (0.009) | 18.68 (0.01) | 18.68 (0.01) | |||||
| i magnitude | 18.65 (0.01) | 18.65 (0.02) | 18.65 (0.02) | |||||
| z magnitude | 18.64 (0.04) | 18.64 (0.04) | 18.64 (0.04) | |||||
| G magnitude | 18.69 (0.05) | 18.76 | 18.69 (0.01) | |||||
| BP magnitude | 18.85 (0.05) | 18.91 | ||||||
| RP magnitude | 18.36 (0.03) | 18.33 | ||||||
| Pan g magnitude | 19.09 (0.009) | |||||||
| Pan r magnitude | 18.91 (0.01) | |||||||
| Pan i magnitude | 18.70 (0.03) | |||||||
| Pan z magnitude | 18.72 (0.01) | |||||||
| Pan y magnitude | 18.60 (0.06) | |||||||
| E(B-V) | 0.030 | |||||||
* 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.