SDO HMI 2014-12-13 22:00:24 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 |
| 16.60 | 101.56 | 25.39 | 155.28 | -3.97 | 1.14 | 71.02 | 266.06 | 0.9470 | 395.5 | 88.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-13 22:00:24 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 | 1.02 | 0.00 | 1.55 | -1.54 | 1.05 | 70.94 | 268.62 | 0.9465 | 288.0 | 218.7 | |
| 15.75 | 92.11 | 24.17 | 141.69 | -4.18 | 1.25 | 71.13 | 265.84 | 0.9477 | 497.0 | 114.9 | |
| 0.00 | 1.28 | 0.00 | 1.90 | -1.43 | 0.77 | 70.65 | 268.74 | 0.9449 | -186.0 | -216.5 | |
| 0.85 | 3.06 | 1.22 | 4.38 | -1.44 | 359.80 | 69.68 | 268.74 | 0.9393 | -413.3 | -330.0 | |
| 0.00 | 2.89 | 0.00 | 4.10 | -1.79 | 359.66 | 69.54 | 268.36 | 0.9384 | -468.0 | -407.7 | |
| 0.00 | 0.26 | 0.00 | 0.36 | -3.63 | 359.71 | 69.60 | 266.40 | 0.9388 | 424.0 | 426.3 | |
| 0.00 | 0.94 | 0.00 | 1.30 | -3.55 | 359.19 | 69.07 | 266.48 | 0.9356 | 454.0 | 473.7 | |
| 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. | |