SDO HMI 2011-04-30 16:59:07 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 |
| 11.48 | 30.85 | 12.95 | 34.70 | 15.45 | 179.00 | 61.42 | 289.52 | 0.8993 | -73.9 | -110.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-30 16:59:07 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 | 1.96 | 0.00 | 2.35 | 15.19 | 180.92 | 63.34 | 288.79 | 0.9127 | -159.0 | -69.2 | |
| 3.74 | 14.44 | 4.43 | 17.11 | 15.23 | 180.52 | 62.94 | 288.91 | 0.9101 | -547.7 | -413.1 | |
| 2.76 | -2.00 | 3.29 | -2.00 | 15.58 | 180.57 | 62.99 | 289.28 | 0.9110 | -321.6 | 999999 | |
| 0.62 | 2.50 | 0.72 | 2.89 | 15.30 | 179.74 | 62.16 | 289.17 | 0.9048 | -480.1 | -547.6 | |
| 0.00 | 0.98 | 0.00 | 1.08 | 15.34 | 178.43 | 60.85 | 289.52 | 0.8955 | 117.0 | 135.4 | |
| 2.58 | 5.35 | 2.69 | 5.55 | 15.34 | 176.54 | 58.96 | 289.99 | 0.8812 | 372.6 | 365.1 | |
| 0.00 | 0.45 | 0.00 | 0.46 | 16.21 | 176.22 | 58.64 | 291.04 | 0.8805 | 152.0 | 199.0 | |
| 1.78 | 4.19 | 1.82 | 4.28 | 15.93 | 175.85 | 58.27 | 290.83 | 0.8770 | 522.5 | 454.2 | |
| 0.00 | 0.98 | 0.00 | 0.98 | 16.07 | 174.96 | 57.38 | 291.23 | 0.8702 | 514.0 | 433.1 | |
| 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. | |