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