All names: ** SKF 2727, SDSS J163005.18+154028.3, GALEX J163005.1+154027, Gaia EDR3 4465459360005031296, SDSS J163005.18+154028.1, SDSS J163005.18+154028.06, WISE J163005.15+154028.4, WDS J16301+1540AB, Gaia DR2 4465459360005031296, 2MASS J16300514+1540288, SDSS J163005.18+154028.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 30 05.20 (0.09) | 16 30 05.18 | 16 30 05.20 (0.1) | 16 30 05.15 (90) | ||||
| Declination | 15 40 27.82 (0.1) | 15 40 28.30 | 15 40 27.84 (0.1) | 15 40 28.89 (70) | ||||
| Spectral type | DA+M4 | DA+dM | ||||||
| Effective temperature | [K] | 10638.0 (35) | ||||||
| log(g) | [cgs] | 8.82 (0.03) | ||||||
| Mass | [M☉] | 1.079 (0.02) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 4.06 (0.1) | 3.74 (0.2) | |||||
| Distance | [pc] | 246.21 (9) | 267.57 (15) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 5.242900699 (0.1) | 5.324532005 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -42.05643528 (0.1) | -41.83627632 (0.3) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 14.72 (0.03) | |||||||
| H magnitude | 14.14 (0.04) | |||||||
| K magnitude | 13.86 (0.06) | |||||||
| u magnitude | 17.64 (0.01) | 17.66 (0.03) | 17.64 (0.01) | |||||
| g magnitude | 17.47 (0.005) | 17.53 (0.02) | 17.46 (0.005) | |||||
| r magnitude | 17.47 (0.005) | 17.59 (0.01) | 17.47 (0.005) | |||||
| i magnitude | 16.73 (0.005) | 16.82 (0.01) | 16.73 (0.005) | |||||
| z magnitude | 16.05 (0.007) | 16.13 (0.02) | 16.06 (0.007) | |||||
| G magnitude | 17.81 (0.01) | 17.79 | ||||||
| BP magnitude | 17.52 (0.01) | 17.46 | ||||||
| RP magnitude | 16.30 (0.007) | 16.33 | ||||||
| Pan g magnitude | 17.56 (0.005) | |||||||
| Pan r magnitude | 17.60 (0.01) | |||||||
| Pan i magnitude | 16.84 (0.009) | |||||||
| Pan z magnitude | 16.25 (0.007) | |||||||
| Pan y magnitude | 15.96 (0.003) | |||||||
| E(B-V) | 0.047 | |||||||
* 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.