SDO HMI 2014-04-28 13:00:35 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 |
| 34.83 | 200.50 | 22.05 | 126.67 | -23.43 | 114.92 | 34.60 | 236.99 | 0.6235 | 662.1 | 349.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-28 13:00:35 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 | 2.49 | 0.00 | 1.55 | -21.31 | 114.62 | 34.31 | 240.01 | 0.6085 | -756.0 | -558.5 | |
| 33.22 | 183.57 | 21.05 | 116.22 | -23.40 | 115.14 | 34.82 | 237.19 | 0.6257 | 1117.5 | 402.4 | |
| 1.16 | 6.15 | 0.73 | 3.90 | -24.35 | 114.74 | 34.42 | 235.57 | 0.6267 | 780.4 | 558.7 | |
| 0.00 | 1.25 | 0.00 | 0.76 | -20.69 | 112.65 | 32.33 | 239.79 | 0.5811 | -583.0 | -605.7 | |
| 0.00 | 0.98 | 0.00 | 0.60 | -21.49 | 112.46 | 32.14 | 238.40 | 0.5833 | -523.0 | -457.5 | |
| 0.00 | 1.51 | 0.00 | 0.92 | -21.95 | 112.23 | 31.91 | 237.54 | 0.5832 | -596.0 | -438.6 | |
| 0.00 | 1.43 | 0.00 | 0.85 | -23.61 | 109.66 | 29.35 | 233.06 | 0.5640 | -775.0 | -632.0 | |
| 0.00 | 0.89 | 0.00 | 0.54 | -27.50 | 107.97 | 27.65 | 225.83 | 0.5760 | -663.0 | -574.8 | |
| 0.45 | 2.23 | 0.27 | 1.33 | -27.61 | 106.62 | 26.30 | 224.41 | 0.5632 | -757.2 | -598.7 | |
| 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. | |