| 1. | The calculation becomes more accurate if more reference stars are used .
利用的定标星越多，计算的精确度就越高。 |
| 2. | So once we cross - referenced star charts to the horizon ,
因此我们可以通过天空星辰座标来确定位置 |
| 3. | Upper limit : the upper limit for the magnitude of reference stars
最亮星等极限：参考星的最亮的星等。 |
| 4. | Radial - velocity reference star
视向速度参考星 |
| 5. | Also , the software has already identified the stars and reference stars on the images
并且软件已经在图片上识别了恒星和参考星。 |
| 6. | Astrometric limit : the maximum residual in the place of a reference star , specified in arc seconds
天文测量误差极限：参考星位置对应的最大误差，用角秒表示。 |
| 7. | This tab sets the parameters for the object detection , reference star matching , and data reduction
本标签栏用来设置有关目标检测，参考星匹配以及天文数据归算的有关参数。 |
| 8. | In this section , you can set a limit to the astrometric and photometric residuals of the reference stars
在这里，你可以设置一个有关参考星的天文测量和光度测量的误差值。 |
| 9. | Reference stars : star with known position and / or magnitude , that are used to find the plate constants and photometric calibration of an image
参考星：已知位置和/或星等的恒星，用于确定图片的底片常数和光度校准。 |
| 10. | Any reference star that if found to show larger residual in either right ascension or declination will be rejected from the astrometric solution
任何一个参考星的赤经或赤纬偏差超过这个值将被拒绝进行天文测量处理。 |
