All names: WD 2148+286, Gaia DR2 1897151272994229120, GCRV 72548, BD+28 4211, Gaia DR3 1897151272994229120, Renson 57770, UBV M 1808, GEN# +0.02804211, UBV 18719, NAME NC 55, TD1 30949, GSC 02214-01198, JP11 97, 2MASS J21511102+2851504, BD+284211, TYC 2214-1198-1, [HJ56] 233, HIC 107864, HIP 107864, uvby98 002804211, TIC 452740376, Gaia EDR3 1897151272994229120
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 21 51 10.98 (0.05) | 21 51 11.05 | 21 51 10.98 (0.07) | 21 51 11.02 (0.05) | 21 51 11.09 | ||
| Declination | 28 51 49.46 (0.06) | 28 51 50.90 | 28 51 49.48 (0.1) | 28 51 50.37 (0.06) | 28 51 53.28 | ||
| Spectral type | sdO | sdO2VIIIHe5 | DA.84 | ||||
| Effective temperature | [K] | 81300.0 (1200) | |||||
| log(g) | [cgs] | 6.52 (0.05) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 8.92 (0.07) | 8.80 (0.1) | 8.80 (0.1) | 8.92 (0.07) | ||
| Distance | [pc] | 112.15 (0.9) | 113.61 (1) | 113.61 (1) | 112.15 (0.9) | ||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -34.80878769 (0.07) | -34.728 (0.2) | -34.728 (0.2) | -34.809 (0.07) | ||
| Proper motion (declination) | [mas/yr] | -56.9372205 (0.08) | -56.851 (0.2) | -56.851 (0.2) | -56.937 (0.08) | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 10.25 (0.03) | ||||||
| V magnitude | 10.58 (0.05) | ||||||
| R magnitude | 10.66 | ||||||
| I magnitude | 10.83 | ||||||
| J magnitude | 11.28 (0.03) | 11.28 (0.03) | |||||
| H magnitude | 11.44 (0.04) | 11.44 (0.04) | |||||
| K magnitude | 11.56 (0.03) | 11.56 (0.03) | |||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | 14.44 (0.01) | ||||||
| i magnitude | 14.47 (0.01) | ||||||
| z magnitude | 13.88 (0.02) | ||||||
| G magnitude | 10.45 (0.002) | 10.46 (0.001) | 10.46 | 10.45 (0.003) | |||
| BP magnitude | 10.27 (0.002) | 10.27 (0.005) | 10.27 | ||||
| RP magnitude | 10.81 (0.001) | 10.82 (0.003) | 10.82 | ||||
| Pan g magnitude | 12.56 (0.001) | ||||||
| Pan r magnitude | 12.76 (0.001) | ||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.025 | ||||||
* 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.