light echo
相关英语词汇推荐
- Foucaultgram
- WR nebula,Wolf-Rayet nebula
- heliomagnetosphere
- plateau phase
- mesogranulation
- halo dwarf
- accreting binary
- starburst
- hypergiant
- abundance effect
- finder-circle
- star-formation burst
- proto-galactic object
- Vilnius color system
- Hipparcos Catalogue
- Desdemona
- reddened galaxy
- classical quasar
- diagonal mirror
- standard rotational velocity star