SDO HMI 2014-10-12 17:00:31 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 |
| 0.00 | 12.33 | 0.00 | 9.35 | -21.87 | 71.35 | 41.09 | 233.74 | 0.7580 | -22.2 | -158.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-12 17:00:31 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 |
| 0.00 | 0.96 | 0.00 | 0.87 | -22.79 | 80.23 | 49.97 | 237.62 | 0.8381 | 454.0 | 259.8 | |
| 0.00 | 1.05 | 0.00 | 0.83 | -16.68 | 76.76 | 46.50 | 242.94 | 0.7825 | 281.0 | 414.8 | |
| 0.00 | 0.96 | 0.00 | 0.75 | -18.17 | 75.53 | 45.26 | 240.58 | 0.7771 | 499.0 | 446.6 | |
| 0.00 | 0.79 | 0.00 | 0.61 | -19.45 | 74.40 | 44.13 | 238.49 | 0.7724 | 445.0 | 399.6 | |
| 0.00 | 0.96 | 0.00 | 0.74 | -19.21 | 74.22 | 43.96 | 238.69 | 0.7696 | 719.0 | 630.5 | |
| 0.00 | 0.96 | 0.00 | 0.71 | -23.53 | 68.59 | 38.33 | 230.25 | 0.7418 | -592.0 | -493.0 | |
| 0.00 | 3.76 | 0.00 | 2.75 | -23.69 | 68.02 | 37.76 | 229.68 | 0.7378 | -700.0 | -585.3 | |
| 0.00 | 1.40 | 0.00 | 1.01 | -23.46 | 67.57 | 37.31 | 229.63 | 0.7322 | -568.0 | -524.2 | |
| 0.00 | 1.49 | 0.00 | 1.08 | -23.64 | 67.31 | 37.04 | 229.22 | 0.7311 | -738.0 | -566.0 | |
| 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. | |