SDO HMI 2014-08-17 17:00:38 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 |
| 81.19 | 425.98 | 83.17 | 432.23 | -17.67 | 105.95 | 56.30 | 245.26 | 0.8730 | 73.5 | -29.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-17 17:00:38 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 |
| 8.01 | 214.34 | 8.94 | 238.78 | -16.48 | 109.54 | 59.89 | 247.81 | 0.8977 | 605.6 | 186.6 | |
| 35.29 | -1.00 | 39.35 | -1.00 | -17.14 | 109.31 | 59.66 | 247.04 | 0.8975 | 675.5 | 999999 | |
| 0.00 | 1.53 | 0.00 | 1.73 | -18.45 | 109.27 | 59.62 | 245.63 | 0.9002 | 102.0 | 115.6 | |
| 2.34 | 3.69 | 2.40 | 3.79 | -17.16 | 106.63 | 56.99 | 246.16 | 0.8779 | 471.5 | 361.9 | |
| 0.00 | 1.89 | 0.00 | 1.92 | -17.34 | 106.19 | 56.55 | 245.81 | 0.8751 | 382.0 | 332.6 | |
| 0.00 | 0.27 | 0.00 | 0.27 | -17.61 | 105.98 | 56.33 | 245.43 | 0.8741 | 415.0 | 404.0 | |
| 0.54 | 1.44 | 0.53 | 1.42 | -19.36 | 104.27 | 54.62 | 242.92 | 0.8660 | -378.3 | -297.3 | |
| 1.44 | 3.96 | 1.42 | 3.91 | -19.65 | 104.19 | 54.54 | 242.57 | 0.8663 | -549.6 | -368.0 | |
| 0.00 | 0.90 | 0.00 | 0.85 | -19.20 | 102.71 | 53.07 | 242.48 | 0.8532 | -361.0 | -264.1 | |
| 0.00 | 0.90 | 0.00 | 0.84 | -18.97 | 102.39 | 52.75 | 242.61 | 0.8499 | -179.0 | -99.4 | |
| 18.36 | 196.79 | 16.80 | 178.48 | -18.69 | 101.58 | 51.94 | 242.58 | 0.8422 | -674.7 | -308.0 | |
| 15.21 | -11.00 | 13.73 | -11.00 | -18.20 | 101.27 | 51.62 | 243.00 | 0.8379 | -1041.5 | 999999 | |
| 0.00 | 0.27 | 0.00 | 0.24 | -17.46 | 100.46 | 50.81 | 243.49 | 0.8284 | -311.0 | -316.0 | |
| 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. | |