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