SDO HMI 2014-09-17 16:00:34 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 |
| 8.61 | 37.46 | 7.58 | 33.05 | -21.12 | 311.71 | -49.01 | 121.66 | 0.8289 | -76.3 | -149.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-17 16:00:34 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 |
| 2.93 | 4.88 | 2.42 | 4.04 | -20.88 | 314.68 | -46.04 | 122.87 | 0.8029 | 708.4 | 549.0 | |
| 0.00 | 0.98 | 0.00 | 0.88 | -24.78 | 312.66 | -48.06 | 126.05 | 0.8374 | -170.0 | -204.3 | |
| 0.00 | 2.40 | 0.00 | 2.00 | -20.77 | 314.07 | -46.65 | 122.43 | 0.8077 | 634.0 | 543.0 | |
| 0.00 | 1.33 | 0.00 | 1.12 | -20.56 | 313.83 | -46.89 | 122.07 | 0.8088 | 606.0 | 461.9 | |
| 0.00 | 3.11 | 0.00 | 2.63 | -20.61 | 313.28 | -47.44 | 121.85 | 0.8137 | 525.0 | 341.3 | |
| 0.00 | 0.27 | 0.00 | 0.23 | -20.51 | 312.99 | -47.73 | 121.58 | 0.8158 | 484.0 | 422.7 | |
| 0.00 | 1.42 | 0.00 | 1.22 | -20.37 | 312.66 | -48.06 | 121.27 | 0.8180 | 336.0 | 277.1 | |
| 0.00 | 0.62 | 0.00 | 0.55 | -21.01 | 311.25 | -49.47 | 121.30 | 0.8325 | -677.0 | -553.3 | |
| 0.00 | 1.69 | 0.00 | 1.51 | -21.23 | 311.10 | -49.62 | 121.47 | 0.8346 | -712.0 | -626.6 | |
| 0.00 | 2.04 | 0.00 | 1.84 | -21.55 | 310.95 | -49.76 | 121.75 | 0.8371 | -700.0 | -519.0 | |
| 0.00 | 1.24 | 0.00 | 1.13 | -21.49 | 310.53 | -50.19 | 121.48 | 0.8403 | -396.0 | -330.6 | |
| 3.19 | 17.48 | 2.90 | 15.90 | -21.30 | 310.47 | -50.25 | 121.24 | 0.8400 | -609.5 | -453.4 | |
| 0.80 | -12.00 | 0.73 | -12.00 | -21.26 | 310.13 | -50.59 | 121.05 | 0.8426 | -271.9 | 999999 | |
| 1.69 | -12.00 | 1.53 | -12.00 | -20.78 | 310.25 | -50.47 | 120.58 | 0.8397 | -666.5 | 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. | |