SDO HMI 2014-04-16 07:00:34 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 |
| 50.20 | 325.41 | 31.30 | 202.91 | 11.94 | 275.32 | 33.20 | 298.00 | 0.6089 | -1004.6 | -354.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-16 07:00:34 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 |
| 49.40 | 318.33 | 30.83 | 198.71 | 11.91 | 275.44 | 33.32 | 297.85 | 0.6102 | -1325.6 | -371.8 | |
| 0.00 | 0.97 | 0.00 | 0.60 | 13.71 | 272.96 | 30.85 | 302.40 | 0.5922 | -576.0 | -454.2 | |
| 0.00 | 0.89 | 0.00 | 0.53 | 12.97 | 271.43 | 29.31 | 302.59 | 0.5684 | 618.0 | 454.8 | |
| 0.80 | 1.59 | 0.47 | 0.94 | 12.62 | 269.39 | 27.27 | 303.94 | 0.5410 | 737.0 | 607.3 | |
| 0.00 | 1.24 | 0.00 | 0.73 | 13.59 | 269.23 | 27.11 | 305.60 | 0.5469 | 697.0 | 422.9 | |
| 0.00 | 1.68 | 0.00 | 0.99 | 13.99 | 268.13 | 26.01 | 307.33 | 0.5373 | 801.0 | 653.2 | |
| 0.00 | 0.71 | 0.00 | 0.41 | 13.64 | 266.55 | 24.43 | 308.51 | 0.5156 | 773.0 | 723.1 | |
| 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. | |