SDO HMI 2014-08-17 21:00:38 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 |
| 65.16 | 389.74 | 70.69 | 424.13 | -17.68 | 106.13 | 58.70 | 246.06 | 0.8907 | 47.5 | 1.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-17 21:00:38 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 |
| 32.49 | 200.72 | 39.22 | 241.98 | -17.10 | 109.50 | 62.07 | 247.80 | 0.9138 | 633.1 | 214.4 | |
| 0.00 | 0.63 | 0.00 | 0.71 | -16.42 | 107.73 | 60.30 | 248.00 | 0.9005 | 549.0 | 502.1 | |
| 0.00 | 0.99 | 0.00 | 1.13 | -16.79 | 107.86 | 60.43 | 247.64 | 0.9022 | 509.0 | 487.5 | |
| 0.00 | 1.08 | 0.00 | 1.27 | -18.01 | 108.55 | 61.12 | 246.56 | 0.9094 | 660.0 | 592.6 | |
| 0.54 | 2.07 | 0.59 | 2.28 | -17.09 | 106.68 | 59.25 | 246.96 | 0.8945 | 372.7 | 385.8 | |
| 0.00 | 1.08 | 0.00 | 1.17 | -17.05 | 106.29 | 58.86 | 246.88 | 0.8916 | 294.0 | 371.3 | |
| 0.45 | 1.53 | 0.47 | 1.60 | -19.49 | 104.13 | 56.70 | 243.53 | 0.8821 | -536.6 | -436.8 | |
| 0.00 | 0.54 | 0.00 | 0.56 | -20.00 | 103.94 | 56.51 | 242.92 | 0.8821 | -188.0 | -158.5 | |
| 14.94 | 181.10 | 14.24 | 173.43 | -18.17 | 101.26 | 53.84 | 243.91 | 0.8562 | -942.1 | -315.4 | |
| 16.74 | -9.00 | 16.17 | -9.00 | -18.76 | 101.54 | 54.11 | 243.36 | 0.8602 | -558.4 | 999999 | |
| 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. | |