SDO HMI 2014-08-16 00:00:38 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 |
| 32.44 | 179.29 | 33.19 | 182.90 | 15.35 | 133.88 | 61.67 | 283.86 | 0.8762 | -644.3 | -225.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-16 00:00:38 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 |
| 24.42 | 177.58 | 25.14 | 181.54 | 15.47 | 134.16 | 61.95 | 284.00 | 0.8786 | -638.5 | -230.4 | |
| 5.50 | -1.00 | 5.53 | -1.00 | 15.08 | 133.36 | 61.15 | 283.57 | 0.8720 | -727.1 | 999999 | |
| 2.52 | -1.00 | 2.52 | -1.00 | 14.89 | 133.13 | 60.93 | 283.35 | 0.8701 | -891.7 | 999999 | |
| 0.00 | 1.71 | 0.00 | 1.36 | 13.23 | 124.22 | 52.01 | 281.60 | 0.7854 | 291.0 | 306.8 | |
| 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. | |