SDO HMI 2011-04-28 23:59:06 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 | 18.70 | 0.00 | 11.00 | 10.83 | 111.42 | -28.72 | 61.92 | 0.5416 | -590.8 | -527.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-28 23:59:06 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 | 0.80 | 0.00 | 0.46 | 14.12 | 115.32 | -24.82 | 52.61 | 0.5144 | -582.0 | -442.0 | |
| 0.00 | 0.80 | 0.00 | 0.47 | 13.57 | 113.69 | -26.45 | 55.18 | 0.5294 | -804.0 | -644.1 | |
| 0.00 | 0.53 | 0.00 | 0.31 | 14.60 | 113.49 | -26.64 | 53.77 | 0.5401 | -395.0 | -530.0 | |
| 0.00 | 1.34 | 0.00 | 0.79 | 15.37 | 113.21 | -26.93 | 52.86 | 0.5498 | -645.0 | -511.5 | |
| 0.00 | 2.40 | 0.00 | 1.42 | 13.90 | 112.50 | -27.64 | 55.81 | 0.5465 | -777.0 | -602.3 | |
| 0.00 | 1.07 | 0.00 | 0.63 | 14.13 | 112.32 | -27.81 | 55.62 | 0.5503 | -722.0 | -592.8 | |
| 0.00 | 0.98 | 0.00 | 0.59 | 13.99 | 111.10 | -29.03 | 56.95 | 0.5640 | -616.0 | -476.5 | |
| 0.00 | 1.25 | 0.00 | 0.74 | 13.44 | 111.18 | -28.96 | 57.72 | 0.5591 | -704.0 | -514.3 | |
| 0.00 | 1.34 | 0.00 | 0.81 | 13.77 | 110.17 | -29.97 | 58.08 | 0.5738 | -664.0 | -499.3 | |
| 0.00 | 4.36 | 0.00 | 2.52 | 5.14 | 110.78 | -29.35 | 72.26 | 0.5146 | -828.0 | -692.4 | |
| 0.00 | 1.60 | 0.00 | 0.96 | 12.77 | 109.95 | -30.19 | 59.81 | 0.5696 | -723.0 | -599.6 | |
| 0.00 | 1.07 | 0.00 | 0.62 | 5.30 | 109.72 | -30.41 | 72.56 | 0.5304 | -927.0 | -779.5 | |
| 0.00 | 1.16 | 0.00 | 0.68 | 4.59 | 109.13 | -31.01 | 74.16 | 0.5359 | 706.0 | 547.6 | |
| 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. | |