SDO HMI 2014-08-23 10:00:38 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 |
| 18.43 | 101.69 | 15.62 | 85.42 | 16.57 | 28.43 | 54.22 | 285.49 | 0.8087 | -432.9 | -192.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-23 10:00:38 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 |
| 18.43 | 93.50 | 15.62 | 79.31 | 16.46 | 28.87 | 54.66 | 285.30 | 0.8132 | -875.7 | -233.1 | |
| 0.00 | 1.08 | 0.00 | 0.88 | 18.50 | 26.94 | 52.73 | 288.00 | 0.7958 | -399.0 | -314.8 | |
| 0.00 | 0.99 | 0.00 | 0.80 | 18.59 | 26.66 | 52.45 | 288.15 | 0.7931 | -333.0 | -364.7 | |
| 0.00 | 0.54 | 0.00 | 0.40 | 17.77 | 21.89 | 47.68 | 287.73 | 0.7415 | 524.0 | 437.3 | |
| 0.00 | 1.26 | 0.00 | 0.92 | 17.69 | 21.67 | 47.46 | 287.66 | 0.7390 | 532.0 | 449.6 | |
| 0.00 | 0.81 | 0.00 | 0.59 | 17.90 | 21.46 | 47.25 | 287.97 | 0.7369 | 495.0 | 384.2 | |
| 0.00 | 1.17 | 0.00 | 0.85 | 18.53 | 21.36 | 47.15 | 288.85 | 0.7368 | 434.0 | 362.0 | |
| 0.00 | 0.99 | 0.00 | 0.71 | 17.07 | 20.62 | 46.41 | 286.97 | 0.7262 | 514.0 | 422.4 | |
| 0.00 | 0.63 | 0.00 | 0.45 | 18.44 | 20.67 | 46.46 | 288.84 | 0.7289 | 532.0 | 502.4 | |
| 0.00 | 0.72 | 0.00 | 0.51 | 17.56 | 19.95 | 45.74 | 287.76 | 0.7193 | 722.0 | 700.2 | |
| 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. | |