Chinese H-alpha Solar Explorer (CHASE) Discovers New Solar Atmospheric Rotation Pattern
| Aspect | Details |
|---|---|
| Satellite Name | Chinese H-alpha Solar Explorer (CHASE), nicknamed "Xihe" (Goddess of the Sun) |
| Launch Date | October 14, 2021 |
| Agency | China National Space Administration (CNSA) |
| Mission Objective | To acquire spectroscopic observations in the H-alpha waveband and test a new satellite platform |
| Scientific Payload | H-alpha Imaging Spectrograph (HIS) |
| Observational Modes | Raster scanning mode (spectral images) and continuum imaging mode (photospheric images) |
| Wavelength Ranges | 6559.7 to 6565.9 Å, 6567.8 to 6570.6 Å, and continuum around 6689 Å |
| Spectral Resolution | 0.024 Å pixel |
| Temporal Resolution | 1 minute |
| Discovery | New pattern of solar atmospheric rotation |
| Publication | Nature Astronomy |
| Key Findings | As solar atmospheric altitude increases, rotational speed increases |
| Sun's Rotation | Approximately 27 days |
| Sun's Tilt | 7.25 degrees from Earth's orbital axis |