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