SDO HMI 2011-12-12 17:58:55 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 |
| 16.76 | 34.81 | 27.28 | 59.17 | 21.26 | 299.94 | -71.45 | 67.51 | 0.9556 | -180.7 | -13.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-12 17:58:55 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 |
| 0.00 | 0.85 | 0.00 | 1.11 | 18.98 | 305.24 | -66.16 | 69.18 | 0.9270 | -328.0 | -364.6 | |
| 4.17 | 5.19 | 5.83 | 7.26 | 19.97 | 303.76 | -67.63 | 68.35 | 0.9367 | -435.0 | -399.2 | |
| 0.00 | 1.62 | 0.00 | 2.30 | 19.82 | 303.39 | -68.00 | 68.57 | 0.9386 | -195.0 | -153.3 | |
| 0.00 | 2.98 | 0.00 | 4.34 | 20.11 | 302.87 | -68.52 | 68.34 | 0.9417 | -375.0 | -212.6 | |
| 1.36 | 1.36 | 1.92 | 1.92 | 18.82 | 303.35 | -68.05 | 69.63 | 0.9380 | -364.6 | 0.0 | |
| 5.53 | 9.96 | 8.59 | 15.57 | 20.38 | 301.53 | -69.86 | 68.24 | 0.9490 | -316.9 | 54.2 | |
| 0.68 | -6.00 | 1.07 | -6.00 | 20.60 | 301.20 | -70.19 | 68.05 | 0.9509 | 121.8 | 999999 | |
| 2.21 | 3.06 | 3.44 | 4.77 | 19.90 | 301.36 | -70.03 | 68.76 | 0.9496 | -200.7 | -156.6 | |
| 0.00 | 0.85 | 0.00 | 1.32 | 19.59 | 301.40 | -70.00 | 69.08 | 0.9492 | -317.0 | -248.1 | |
| 0.00 | 1.62 | 0.00 | 3.58 | 23.51 | 295.78 | -75.61 | 65.70 | 0.9756 | 327.0 | 357.1 | |
| 2.81 | 7.32 | 6.43 | 17.00 | 23.54 | 295.31 | -76.08 | 65.71 | 0.9772 | 244.5 | 72.7 | |
| 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. | |