SDO HMI 2014-08-28 09:00:37 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 |
| 37.59 | 150.19 | 68.28 | 274.68 | 7.85 | 343.73 | 75.04 | 276.19 | 0.9637 | -11.5 | -149.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-28 09:00:37 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 |
| 0.00 | 1.26 | 0.00 | 3.34 | 8.44 | 348.85 | 80.16 | 277.29 | 0.9834 | 56.0 | -15.1 | |
| 0.00 | 1.17 | 0.00 | 3.04 | 8.29 | 348.55 | 79.85 | 277.11 | 0.9825 | -258.0 | -200.8 | |
| 0.00 | 1.08 | 0.00 | 2.59 | 9.90 | 347.73 | 79.04 | 278.67 | 0.9792 | -8.0 | 47.8 | |
| 3.05 | 140.85 | 5.75 | 255.53 | 7.04 | 344.10 | 75.41 | 275.39 | 0.9659 | 551.9 | -162.3 | |
| 4.67 | -4.00 | 8.95 | -4.00 | 7.42 | 344.29 | 75.60 | 275.80 | 0.9666 | 637.3 | 999999 | |
| 26.82 | -4.00 | 48.26 | -4.00 | 7.80 | 343.40 | 74.70 | 276.11 | 0.9623 | -235.7 | 999999 | |
| 3.05 | 4.75 | 5.32 | 8.29 | 11.28 | 343.21 | 74.51 | 279.71 | 0.9600 | 331.9 | 254.3 | |
| 0.00 | 1.08 | 0.00 | 1.89 | 11.58 | 343.31 | 74.62 | 280.03 | 0.9604 | 109.0 | 64.6 | |
| 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. | |