SDO HMI 2014-08-29 00:00:37 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 |
| 21.59 | 39.54 | 20.58 | 37.90 | -17.51 | 206.28 | -54.15 | 115.46 | 0.8577 | 270.6 | 151.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-29 00:00:37 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 |
| 3.85 | 19.36 | 3.55 | 17.95 | -17.47 | 207.88 | -52.55 | 116.04 | 0.8449 | 719.8 | 205.3 | |
| 8.60 | -1.00 | 8.00 | -1.00 | -17.45 | 207.46 | -52.96 | 115.85 | 0.8482 | 511.3 | 999999 | |
| 0.00 | 0.81 | 0.00 | 0.76 | -17.28 | 206.84 | -53.58 | 115.42 | 0.8528 | 353.0 | 245.4 | |
| 0.45 | 1.61 | 0.40 | 1.45 | -14.69 | 207.69 | -52.74 | 112.85 | 0.8375 | 554.2 | 507.9 | |
| 1.52 | 3.05 | 1.50 | 3.01 | -18.92 | 205.65 | -54.78 | 116.76 | 0.8674 | 414.1 | 218.9 | |
| 1.17 | 6.99 | 1.11 | 6.66 | -16.69 | 206.23 | -54.20 | 114.54 | 0.8560 | 614.5 | 428.0 | |
| 1.88 | -6.00 | 1.80 | -6.00 | -16.61 | 206.04 | -54.38 | 114.38 | 0.8573 | 492.9 | 999999 | |
| 4.12 | 5.92 | 4.22 | 6.06 | -18.52 | 204.20 | -56.22 | 115.78 | 0.8772 | -598.7 | -334.3 | |
| 0.00 | 0.99 | 0.00 | 1.09 | -18.11 | 201.61 | -58.82 | 114.44 | 0.8950 | -444.0 | -418.1 | |
| 0.00 | 0.81 | 0.00 | 0.92 | -17.32 | 200.40 | -60.02 | 113.22 | 0.9016 | -344.0 | -311.1 | |
| 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. | |