SDO HMI 2011-10-17 17:59:01 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 |
| 6.88 | 21.63 | 6.32 | 20.47 | 24.13 | 331.73 | -57.91 | 65.12 | 0.8530 | -258.8 | -181.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 17:59:01 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 |
| 1.48 | 10.20 | 1.33 | 9.16 | 23.45 | 333.92 | -55.72 | 65.55 | 0.8349 | -828.1 | -608.9 | |
| 4.88 | -1.00 | 4.40 | -1.00 | 23.36 | 333.62 | -56.01 | 65.71 | 0.8373 | -479.9 | 999999 | |
| 0.00 | 0.96 | 0.00 | 0.86 | 23.04 | 333.60 | -56.04 | 66.09 | 0.8371 | -461.0 | -446.2 | |
| 0.00 | 2.35 | 0.00 | 2.11 | 22.73 | 333.73 | -55.91 | 66.44 | 0.8354 | -678.0 | -537.7 | |
| 0.00 | 2.27 | 0.00 | 2.06 | 22.85 | 333.19 | -56.45 | 66.39 | 0.8403 | -378.0 | -289.7 | |
| 0.00 | 0.96 | 0.00 | 0.89 | 23.18 | 332.56 | -57.08 | 66.10 | 0.8462 | -359.0 | -264.0 | |
| 0.00 | 1.05 | 0.00 | 1.14 | 27.01 | 327.13 | -62.51 | 62.52 | 0.8927 | 416.0 | 327.9 | |
| 0.00 | 0.96 | 0.00 | 1.08 | 27.52 | 326.02 | -63.62 | 62.11 | 0.9008 | 434.0 | 325.2 | |
| 0.00 | 1.40 | 0.00 | 1.51 | 26.07 | 327.18 | -62.46 | 63.57 | 0.8914 | 536.0 | 443.2 | |
| 0.52 | 1.48 | 0.59 | 1.66 | 26.76 | 326.12 | -63.52 | 62.93 | 0.8994 | 433.3 | 441.2 | |
| 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. | |