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