SDO HMI 2011-08-30 06:59:08 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 |
| 20.52 | 68.01 | 18.24 | 60.96 | -20.15 | 259.15 | -50.11 | 120.06 | 0.8344 | 365.9 | 37.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 06:59:08 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 |
| 2.15 | 2.60 | 1.95 | 2.36 | -22.35 | 259.51 | -49.75 | 122.62 | 0.8401 | 423.7 | 382.8 | |
| 4.84 | 16.58 | 4.24 | 14.48 | -20.39 | 260.12 | -49.14 | 120.76 | 0.8272 | 625.2 | 629.3 | |
| 12.28 | 19.18 | 10.92 | 17.09 | -20.93 | 259.78 | -49.48 | 121.20 | 0.8323 | 672.6 | 231.3 | |
| 0.00 | 1.43 | 0.00 | 1.25 | -19.92 | 260.12 | -49.14 | 120.25 | 0.8253 | 674.0 | 548.8 | |
| 0.00 | 0.45 | 0.00 | 0.42 | -22.20 | 258.56 | -50.70 | 122.02 | 0.8471 | 439.0 | 395.2 | |
| 0.00 | 0.99 | 0.00 | 0.89 | -19.86 | 258.69 | -50.57 | 119.53 | 0.8371 | 406.0 | 353.2 | |
| 0.00 | 1.25 | 0.00 | 1.16 | -20.92 | 258.15 | -51.11 | 120.45 | 0.8455 | 438.0 | 323.0 | |
| 1.25 | 18.55 | 1.13 | 16.83 | -19.15 | 258.44 | -50.83 | 118.63 | 0.8365 | 122.7 | -299.5 | |
| 0.00 | 1.52 | 0.00 | 1.39 | -19.17 | 257.91 | -51.35 | 118.43 | 0.8409 | -643.0 | -538.4 | |
| 0.00 | 0.72 | 0.00 | 0.66 | -19.16 | 257.71 | -51.55 | 118.33 | 0.8425 | -683.0 | -614.8 | |
| 0.00 | 1.88 | 0.00 | 1.74 | -19.62 | 257.45 | -51.81 | 118.72 | 0.8463 | -640.0 | -591.7 | |
| 0.00 | 1.34 | 0.00 | 1.23 | -18.19 | 257.14 | -52.12 | 117.02 | 0.8438 | -583.0 | -466.5 | |
| 0.00 | 1.52 | 0.00 | 1.46 | -19.38 | 255.86 | -53.40 | 117.80 | 0.8582 | -402.0 | -333.8 | |
| 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. | |