SDO HMI 2014-09-28 04:00:33 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 |
| 14.57 | 80.60 | 22.06 | 123.83 | -0.90 | 151.30 | -70.81 | 93.33 | 0.9472 | 485.5 | 196.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-28 04:00:33 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 |
| 5.03 | 76.37 | 7.53 | 116.28 | -0.91 | 151.68 | -70.44 | 93.39 | 0.9452 | 732.3 | 200.7 | |
| 7.24 | -1.00 | 11.02 | -1.00 | -0.64 | 151.42 | -70.70 | 93.07 | 0.9465 | 477.2 | 999999 | |
| 2.30 | -1.00 | 3.51 | -1.00 | -1.06 | 151.21 | -70.90 | 93.48 | 0.9480 | 253.6 | 999999 | |
| 0.00 | 1.85 | 0.00 | 3.18 | -2.13 | 149.25 | -72.87 | 94.32 | 0.9590 | 226.0 | 184.5 | |
| 0.00 | 1.50 | 0.00 | 2.64 | -2.36 | 148.90 | -73.22 | 94.50 | 0.9608 | 86.0 | 80.6 | |
| 0.00 | 0.88 | 0.00 | 1.73 | -3.34 | 147.27 | -74.84 | 95.27 | 0.9688 | 191.0 | 153.1 | |
| 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. | |