SDO HMI 2014-08-20 15:00:38 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.67 | 181.79 | 16.11 | 95.15 | 16.18 | 27.57 | 16.47 | 302.07 | 0.3221 | -578.9 | -314.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-20 15:00:38 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.67 | 148.31 | 16.11 | 77.96 | 15.96 | 28.63 | 17.53 | 299.43 | 0.3340 | -1287.8 | -401.8 | |
| 0.00 | 1.08 | 0.00 | 0.57 | 17.94 | 27.69 | 16.59 | 305.92 | 0.3369 | -711.0 | -503.7 | |
| 0.00 | 1.98 | 0.00 | 1.04 | 18.10 | 27.61 | 16.51 | 306.44 | 0.3372 | -968.0 | -760.5 | |
| 0.00 | 0.99 | 0.00 | 0.51 | 16.49 | 25.79 | 14.68 | 305.11 | 0.2984 | -689.0 | -655.9 | |
| 0.00 | 2.07 | 0.00 | 1.07 | 16.83 | 25.58 | 14.48 | 306.44 | 0.2988 | -999.0 | -820.0 | |
| 0.00 | 0.90 | 0.00 | 0.47 | 16.87 | 25.29 | 14.19 | 307.07 | 0.2953 | -934.0 | -783.5 | |
| 0.00 | 1.08 | 0.00 | 0.56 | 17.00 | 25.14 | 14.04 | 307.71 | 0.2945 | -826.0 | -659.1 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 17.16 | 24.79 | 13.69 | 308.83 | 0.2916 | -745.0 | -635.7 | |
| 0.00 | 1.44 | 0.00 | 0.74 | 17.45 | 24.52 | 13.42 | 310.16 | 0.2909 | -674.0 | -524.1 | |
| 0.00 | 0.54 | 0.00 | 0.28 | 17.33 | 24.31 | 13.21 | 310.24 | 0.2871 | -700.0 | -719.8 | |
| 0.00 | 1.89 | 0.00 | 0.97 | 16.90 | 24.15 | 13.05 | 309.36 | 0.2807 | -994.0 | -795.6 | |
| 0.00 | 2.52 | 0.00 | 1.30 | 17.18 | 24.08 | 12.97 | 310.32 | 0.2826 | -984.0 | -709.0 | |
| 0.00 | 1.35 | 0.00 | 0.69 | 17.14 | 23.42 | 12.32 | 311.59 | 0.2738 | -759.0 | -593.9 | |
| 0.00 | 0.90 | 0.00 | 0.46 | 17.85 | 22.20 | 11.10 | 316.43 | 0.2671 | 687.0 | 526.8 | |
| 0.00 | 1.08 | 0.00 | 0.55 | 17.00 | 21.57 | 10.47 | 315.67 | 0.2497 | 881.0 | 735.2 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 17.95 | 21.59 | 10.49 | 318.27 | 0.2614 | 924.0 | 819.6 | |
| 0.00 | 1.80 | 0.00 | 0.92 | 18.14 | 21.41 | 10.31 | 319.26 | 0.2617 | 873.0 | 675.5 | |
| 0.00 | 1.98 | 0.00 | 1.01 | 16.58 | 21.06 | 9.96 | 315.79 | 0.2388 | 933.0 | 844.1 | |
| 0.00 | 0.81 | 0.00 | 0.41 | 18.63 | 20.27 | 9.17 | 323.67 | 0.2561 | 832.0 | 549.0 | |
| 0.00 | 2.79 | 0.00 | 1.42 | 16.26 | 19.80 | 8.70 | 318.60 | 0.2205 | 890.0 | 779.0 | |
| 0.00 | 2.43 | 0.00 | 1.23 | 16.02 | 19.69 | 8.59 | 318.18 | 0.2162 | 945.0 | 866.5 | |
| 0.00 | 1.44 | 0.00 | 0.74 | 19.48 | 19.86 | 8.76 | 326.83 | 0.2636 | 758.0 | 512.6 | |
| 0.00 | 1.89 | 0.00 | 0.95 | 16.40 | 17.13 | 6.02 | 328.80 | 0.1953 | 943.0 | 761.2 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |