SDO HMI 2014-07-04 18:00:40 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 |
| 22.43 | 88.07 | 28.74 | 113.58 | 6.06 | 203.57 | -67.54 | 84.79 | 0.9244 | -482.4 | -66.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-04 18:00:40 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 |
| 1.00 | 6.90 | 1.24 | 8.55 | 6.38 | 204.44 | -66.67 | 84.45 | 0.9185 | -697.4 | -524.3 | |
| 20.61 | 68.19 | 26.44 | 87.89 | 5.91 | 203.61 | -67.50 | 84.95 | 0.9242 | -526.3 | -49.6 | |
| 0.82 | 2.36 | 1.06 | 3.07 | 7.12 | 203.27 | -67.84 | 83.63 | 0.9263 | -296.4 | -245.6 | |
| 0.00 | 10.35 | 0.00 | 13.63 | 6.56 | 203.03 | -68.09 | 84.24 | 0.9279 | 78.0 | 122.9 | |
| 0.00 | 0.27 | 0.00 | 0.44 | 7.07 | 198.71 | -72.40 | 83.61 | 0.9532 | 187.0 | 192.7 | |
| 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. | |