SDO HMI 2011-02-11 18:58:56 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 |
| 0.00 | 22.33 | 0.00 | 12.44 | 20.39 | 62.88 | -2.19 | 4.47 | 0.4601 | 404.4 | 528.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-11 18:58:56 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 | 2.14 | 0.00 | 1.19 | 19.79 | 70.07 | 5.00 | 349.56 | 0.4542 | -901.0 | -598.8 | |
| 0.00 | 1.20 | 0.00 | 0.68 | 22.51 | 66.77 | 1.69 | 356.80 | 0.4900 | -685.0 | -477.9 | |
| 0.00 | 3.42 | 0.00 | 1.89 | 19.66 | 62.90 | -2.17 | 4.61 | 0.4466 | 768.0 | 715.4 | |
| 0.00 | 9.15 | 0.00 | 5.09 | 20.20 | 62.64 | -2.43 | 5.04 | 0.4552 | 968.0 | 802.7 | |
| 0.00 | 1.20 | 0.00 | 0.67 | 20.91 | 60.25 | -4.82 | 9.64 | 0.4710 | 862.0 | 715.9 | |
| 0.00 | 1.28 | 0.00 | 0.72 | 20.65 | 60.23 | -4.85 | 9.79 | 0.4670 | 797.0 | 646.9 | |
| 0.00 | 1.63 | 0.00 | 0.91 | 21.12 | 60.05 | -5.02 | 9.95 | 0.4746 | 661.0 | 563.9 | |
| 0.00 | 2.31 | 0.00 | 1.29 | 20.75 | 59.97 | -5.11 | 10.26 | 0.4692 | 765.0 | 555.1 | |
| 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. | |