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