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1、实验十用CCD进行目视双星角距的测量一、实验目的：此实验为天文学导论实验的综合性实验，要求学生利用已学过的望远镜和CCD照相机的操作知识，完成对目视双星角距和方位角的测量二、实验仪器：MeadeLX200折反射望远镜或卡塞格林反射望远镜附加ST-9CCD照相机目视双星是指能用肉眼或望远镜分辨开两个子星的物理双星。目视双星的轨道周期较反,一般在1年半以上，且子星角距越大，轨道周期越长。观测目视双星，主要是测量两个子星间角距离的大小和方位。本实验是通过对双星的CCD成像，直接用计算机软件來确定双星的角距（P）和方位角（（））
2、，这比传统的用动丝测微镜来测量更加简单，且精度也较高。望远镜操作参看“望远镜的操作”实验。ST系列CCD的性能及使用方法可参看“CCD的性能指标测试”实验。根据目视双星星表，自行选择观测目标，选择双星的原则为：1.两个子星的星等范围在4等到9等2.角距较大（一般应在5个角秒以上）3.根据观测季节，选取赤经赤纬合适的双星，双星在观测时天顶距不要太大，以免影响观测效果。表1・1可供选择的目视双星ADSSAO星号赤经(2000)赤纬(2000)m2角距离pr方位角光谱型ADS1A10937000236.09+6605566.0
3、,7.515.2070GOBDS71A4062001402.61+7601377.1,7.976.3103MaADS191A109087001458.82+0849155.9,8」11.6148F0ADS1563A75051015755.72+2335454.&7.637.4046A5BDS1116AC75171020925.34+2556235」，&6105.9278F0ADS1683A55330021052.83+3902226.0,6.716.6035AOBDS1094A4594021249.91+7941296.
4、5,7.155.3276A3ADS2582A75970033120.75+2734186.5,6.911.3270A0ADS2735A76122034437」8+2753506.7,7.0126.7043F0ADS2984A13031040751.39+6219487.0,7.117.9304B0ADS3137A76558042021.22+2721025.1,9.052.1250K0ads4200AB77313053626.38+2159357.2,7.83.6268F8BDS2867A112980053753.45+
5、0058077.2,7.980.1031B6VADS5705AC134061070127.05・()3()7()37.9,9.023.2005B3HD7296597952083622.31+1345557.7,8.443.5133A0ADS6900136111083750.4-0648266.7,8.561.0202GO（高白行）HD7366580333084006.4+200028.6.5,6.5149.8151K0HD7681361177085932.6+3225065.6,8.789.6295G5HD7861013
6、6612090908.6-0135167.4,12.053.2328K5ADS726080723091533.32+2755197.9,10.38.0061F8HD7760027112090545.18+5016368.1,8379.2258G5ADS7182117428090644.43+0248367.9,8.211.5273F5HD888497099101750.55+7103386.7,7.316.6171A7HD90125118278102413.18+0222046.4,6.7212.264G9VHD9038
7、6118299102609.20+0355576.6,8.5116.3192A2HD9083927670103037.58+5558494.&9.0120.0304F8VADS7979A81583105536.82+2444594.5,6.36.5110AIVHD9733462451111232.35+3548506.3,7.9138.7070GOVADS8100A7320111511.90+7328307.6,8.254.5104K5ADS8162A118864112645.32+0300476.2,7.92&7149
8、KOIVADS8434A28253120807.07+552750&0,8.422.3082F8ADS8450A28287121127.76+5325177.5,7.712.7221KOADS9338A101138144043.57+1625064.9,5.85.6108AOADS9728A140672153840.
