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- 天箭座U型星 U Sagittae
- 天箭座Ｕ型星 U Sagittae
- 天箭座 sagitta
- 座 to sit
- 天箭星座 Sagitta
- U型 U shape
- 天箭虫属的各种箭虫。 any arrowworm of the genus Sagitta.
- 白羊座 Aries
- 双子U型星 U Gem star
- U型壳 U - shell
- 北天球天鹅星座和天箭星座附近的一个星座 a constellation in the celestial Northern Hemisphere near Cygnus and Sagitta
- 不同光谱型星的起源必然是不一样的。 The origins of stars of differing spectral types must be dissimilar.
- U型槽 U -Shape Groove
- Ａ型星 A star
- U型箍 U-ferrule
- 本文给出了再发新星天箭WZ1978年爆发期间,应用北京天文台兴隆站的40/200厘米双筒天体照相仪于1978年12月6日到25日对其所做的照相观测结果。 Photographic observations of the recurrent nova WZ Sge have been carried out,at Beijing Observatory, using the 40/200 cm double astrograph with the Eastman Kodak 103a O plates wi-thout filter, during the recent outburst of WZ Sge, from Dec. 6 to 25, 1978. All plates were measured by an iris photometer, and the photographic magnitudes were calibrated by the-stars in the selected area.
- 北冕R型星 R CrB star
- U型拉槽 U cutting
- 哈雷彗星和晚型星系统内羟基源观测特性的探讨 STUDY OF OBSERVING PROPERTIES OF OH SOURCES IN HALLEYS COMET AND LATE-TYPE STAR SYSTEMS
- U型挡板 U stop prate
