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- heliology
- heliolongitude
- heliomagnetosphere
- heliometer
- heliometry
- heliomicrometer
- helion
- heliopause
- heliophotography
- heliophysics
- heliophyte
- helioplant
- Helios
- helioscope
- helioscope，helios
- helioscopicocular
- helioseismology
- heliosheath
- heliosphere
- heliospheric energetic particles
- Helios Probe
- Helios satellite
- heliosta field
- heliostat
- heliotail