〈天〉星等
1.The results of an objective prism survey for H_α emission-line stars in the 5°×5° region around NGC 1333 are presented.
2.On the base of the complete and update quasar data, the distribution of redshift and magnitude is analysed statistically, the possible association of quasars with bright galaxies in the Virgo cluster region is discussed as well.
3.Based on the Infrared Astronomical Satellite (IRAS), the Two Micron All Sky Survey (2MASS) and the Hipparcos Catalog and so on, we have studied almost all known Galactic Be stars.
4.According to the method of Bien et al. , tbe systematic differences FK5-Perth70 are calculated. The results show: (1) The systematic changes of Perth70 related to FK5 on right ascension are smoother and smaller than those of FK4, especia-lly at the region of higher declination in southern sky.
