Subject
- very long baseline interferometry4
- astronomical reference materials3
- extinction3
- galaxy classification systems3
- galaxy clusters3
- interstellar medium3
- seyfert galaxies3
- galactic center2
- galaxy planes2
- line intensities2
- markarian galaxies2
- medium band photometry2
- occultation2
- optical observation2
- redshifted / redshift2
- spectrophotometry2
- star atlases2
- stellar distance2
- stellar flares2
- stellar spectral types2
