All names: NVSS J092722+245612, TGSSADR J092723.0+245613, SDSS J092722.87+245613.24, Gaia DR2 645582581575820032, SDSS J092722.87+245613.2, WISEA J092722.86+245613.3, MITG J092720+2456, FIRST J092722.8+245613, CRATES J092723+245625, 87GB 092430.3+250931, BWE 0924+2509, LAMOST J092722.86+245613.2, WB 0924+2509, IVS B0924+251, CLASS J092722.8645+245613.249, GB6 B0924+2509, GLEAM J092723+245619, WISE J092722.86+245613.3, SDSS J092722.86+245613.2, Gaia EDR3 645582581575820032, Gaia DR3 645582581575820032
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 09 27 22.86 (0.2) | 09 27 22.87 | 09 27 22.86 (0.3) | 09 27 22.86 (0.2) | |||
| Declination | 24 56 13.25 (0.2) | 24 56 13.23 | 24 56 13.25 (0.3) | 24 56 13.26 (0.2) | |||
| Spectral type | DC: | ||||||
| Effective temperature | [K] | 5093.0 (500) | |||||
| log(g) | [cgs] | 8.00 (0) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 0.07 (0.3) | 0.13 (0.4) | 0.07 (0.3) | |||
| Distance | [pc] | 14486.64 (58696) | 7841.51 (22100) | 14492.75 (58748) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 0.458349481 (0.3) | 0.382462687 (0.6) | 0.458 (0.3) | |||
| Proper motion (declination) | [mas/yr] | -0.431704276 (0.2) | 0.093118604 (0.5) | -0.432 (0.2) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 20.25 (0.04) | 20.32 (0.05) | 20.27 (0.05) | ||||
| g magnitude | 19.53 (0.01) | 19.55 (0.02) | 19.55 (0.01) | ||||
| r magnitude | 19.01 (0.01) | 19.03 (0.01) | 19.02 (0.01) | ||||
| i magnitude | 18.65 (0.01) | 18.64 (0.02) | 18.66 (0.01) | ||||
| z magnitude | 18.31 (0.03) | 18.33 (0.03) | 18.34 (0.03) | ||||
| G magnitude | 19.02 (0.04) | 18.95 | 19.02 (0.008) | ||||
| BP magnitude | 19.50 (0.04) | 19.30 | |||||
| RP magnitude | 18.49 (0.04) | 18.32 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| 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.