dwarf spiral
相关英语词汇推荐
- Hubble distance
- starburst galaxies
- Compton loss
- Flat Spectrum Radio Quasars
- global positioning system
- terminal-age main sequence(TAMS)
- dense star cluster
- metallicity gradient
- focal plane spectrometer
- initial planet
- moderate-resolution spectrograph
- membership of cluster
- NOAO,National Optical Astronomical
- Great White Spot
- subdwarf B star
- standard rotational velocity star
- Geneva color system
- bipolar planetary nebula
- MGS,Mars Global Surveyor
- plane of trajectory orbital