SDO HMI 2011-05-30 21:59:10 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 |
| 18.60 | 70.52 | 15.34 | 58.07 | -17.96 | 26.77 | -51.28 | 111.97 | 0.8025 | 669.5 | 476.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-30 21:59:10 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 |
| 16.43 | 59.14 | 13.52 | 48.47 | -17.86 | 26.93 | -51.12 | 111.89 | 0.8007 | 803.3 | 507.1 | |
| 1.90 | 3.34 | 1.59 | 2.80 | -18.49 | 26.26 | -51.79 | 112.48 | 0.8086 | 618.3 | 582.6 | |
| 0.27 | 1.90 | 0.23 | 1.59 | -18.72 | 26.16 | -51.89 | 112.72 | 0.8101 | 632.7 | 547.4 | |
| 0.00 | 1.72 | 0.00 | 1.45 | -18.65 | 25.93 | -52.12 | 112.58 | 0.8121 | 536.0 | 480.9 | |
| 0.00 | 1.44 | 0.00 | 1.23 | -18.90 | 25.77 | -52.28 | 112.84 | 0.8142 | 388.0 | 367.1 | |
| 0.00 | 1.35 | 0.00 | 1.13 | -17.15 | 26.29 | -51.76 | 110.86 | 0.8053 | -267.0 | -282.1 | |
| 0.00 | 1.63 | 0.00 | 1.40 | -18.54 | 24.97 | -53.08 | 112.20 | 0.8209 | 338.0 | 246.5 | |
| 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. | |