All names: [KSK94] RR 7 89, SDSS J084918.81+401903.1, KUV 08460+4030, GALEX J084918.8+401903, KUV08460+4030, Gaia DR2 912215529997328128, Case A-F 305, TIC 362063493, Gaia DR3 912215529997328128, 2MASS J08491881+4019032, [BGK2006] J084918.81+401903.2
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 49 18.79 | 08 49 18.81 (0.05) | ||
| Declination | 40 19 03.29 | 40 19 03.11 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.14 (0.08) | 0.15 (0.06) | |
| Distance | [pc] | 7067.14 (4055) | 6523.16 (2642) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.486 (0.1) | -0.37 (0.06) | |
| Proper motion (declination) | [mas/yr] | -4.85 (0.1) | -5.001 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.66 | |||
| V magnitude | 16.72 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.86 (0.1) | 16.86 (0.1) | ||
| H magnitude | 17.77 | |||
| K magnitude | 16.19 (0.3) | 16.19 (0.3) | ||
| u magnitude | 17.19 (0.008) | 17.18 (0.009) | ||
| g magnitude | 16.44 (0.004) | 16.46 (0.004) | ||
| r magnitude | 16.79 (0.004) | 16.80 (0.004) | ||
| i magnitude | 17.04 (0.005) | 17.05 (0.005) | ||
| z magnitude | 17.23 (0.01) | 17.23 (0.01) | ||
| G magnitude | 16.68 (0.0007) | 16.66 (0.003) | ||
| BP magnitude | 16.62 (0.004) | |||
| RP magnitude | 16.72 (0.006) | |||
| Pan g magnitude | 16.54 (0.004) | |||
| Pan r magnitude | 16.81 (0.003) | |||
| Pan i magnitude | 17.07 (0.004) | |||
| Pan z magnitude | 17.22 (0.005) | |||
| Pan y magnitude | 17.26 (0.01) | |||
| E(B-V) | 0.027 | |||
* 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.