SDO HMI 2014-03-04 12:00:28 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 |
| 10.20 | 49.34 | 13.10 | 63.27 | -6.14 | 154.17 | 67.69 | 266.35 | 0.9234 | 457.0 | 88.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 12:00:28 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 |
| 10.20 | 43.64 | 13.10 | 56.34 | -6.06 | 154.32 | 67.84 | 266.43 | 0.9244 | 524.9 | 72.4 | |
| 0.00 | 3.28 | 0.00 | 4.03 | -6.39 | 153.23 | 66.75 | 266.17 | 0.9168 | 277.0 | 238.4 | |
| 0.00 | 1.30 | 0.00 | 1.59 | -6.72 | 153.24 | 66.76 | 265.82 | 0.9167 | 415.0 | 353.2 | |
| 0.00 | 1.12 | 0.00 | 1.31 | -8.28 | 151.98 | 65.50 | 264.22 | 0.9069 | -211.0 | -166.0 | |
| 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. | |