SDO HMI 2014-04-08 13:00:33 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 |
| 38.23 | 204.80 | 69.85 | 358.93 | 12.56 | 272.79 | -71.66 | 74.96 | 0.9589 | -104.9 | -47.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 13:00:33 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 |
| 22.02 | 141.03 | 33.40 | 214.32 | 11.39 | 275.31 | -69.14 | 75.70 | 0.9467 | -457.0 | -142.7 | |
| 2.11 | 4.58 | 3.50 | 7.57 | 12.35 | 273.85 | -70.60 | 74.98 | 0.9553 | -115.5 | -88.6 | |
| 0.00 | 1.23 | 0.00 | 2.48 | 13.95 | 270.84 | -73.60 | 73.90 | 0.9701 | 390.0 | 395.1 | |
| 6.78 | 57.96 | 16.23 | 134.56 | 14.89 | 268.50 | -75.95 | 73.35 | 0.9795 | 231.4 | 114.1 | |
| 1.15 | -4.00 | 2.60 | -4.00 | 14.11 | 269.05 | -75.40 | 74.05 | 0.9771 | 441.8 | 999999 | |
| 1.50 | -4.00 | 3.46 | -4.00 | 14.32 | 268.84 | -75.61 | 73.87 | 0.9780 | 357.5 | 999999 | |
| 4.67 | -4.00 | 10.66 | -4.00 | 13.77 | 269.00 | -75.44 | 74.40 | 0.9770 | 159.9 | 999999 | |
| 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. | |