SDO HMI 2013-06-23 16:59:10 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 |
| 4.26 | 13.70 | 4.30 | 13.84 | -14.76 | 253.58 | 58.76 | 251.77 | 0.8724 | 640.7 | 411.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-06-23 16:59:10 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 |
| 2.54 | 3.90 | 2.57 | 3.95 | -15.08 | 253.76 | 58.94 | 251.45 | 0.8744 | 536.4 | 313.5 | |
| 1.72 | 9.53 | 1.73 | 9.62 | -14.62 | 253.50 | 58.68 | 251.90 | 0.8716 | 749.3 | 418.1 | |
| 0.00 | 0.27 | 0.00 | 0.27 | -14.88 | 253.55 | 58.73 | 251.62 | 0.8724 | 721.0 | 699.0 | |
| 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. | |