角度是两个相交线或表面之间旋转的度量。它以程度（°）或弧度（rad）为单位进行测量。
1 rad = 206,264.88 arcsec
1 arcsec = 4.8481e-6 rad
例子:
将15 弧度转换为第二弧的第二：
15 rad = 3,093,973.2 arcsec
| 弧度 | 第二弧的第二 |
|---|---|
| 0.01 rad | 2,062.649 arcsec |
| 0.1 rad | 20,626.488 arcsec |
| 1 rad | 206,264.88 arcsec |
| 2 rad | 412,529.76 arcsec |
| 3 rad | 618,794.64 arcsec |
| 5 rad | 1,031,324.4 arcsec |
| 10 rad | 2,062,648.8 arcsec |
| 20 rad | 4,125,297.6 arcsec |
| 30 rad | 6,187,946.4 arcsec |
| 40 rad | 8,250,595.2 arcsec |
| 50 rad | 10,313,244 arcsec |
| 60 rad | 12,375,892.8 arcsec |
| 70 rad | 14,438,541.6 arcsec |
| 80 rad | 16,501,190.4 arcsec |
| 90 rad | 18,563,839.2 arcsec |
| 100 rad | 20,626,488 arcsec |
| 250 rad | 51,566,220 arcsec |
| 500 rad | 103,132,440 arcsec |
| 750 rad | 154,698,660 arcsec |
| 1000 rad | 206,264,880 arcsec |
| 10000 rad | 2,062,648,800 arcsec |
| 100000 rad | 20,626,488,000 arcsec |
规则