SDO HMI 2011-11-21 18:58:57 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 |
| 37.62 | 179.53 | 45.07 | 212.69 | 17.53 | 223.04 | -64.55 | 71.62 | 0.9090 | -277.2 | -107.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-21 18:58:57 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 | 1.46 | 0.00 | 1.65 | 18.53 | 224.31 | -63.28 | 70.38 | 0.9010 | -443.0 | -389.6 | |
| 0.00 | 1.37 | 0.00 | 1.56 | 18.40 | 224.12 | -63.47 | 70.55 | 0.9022 | -642.0 | -578.6 | |
| 20.99 | 156.99 | 24.42 | 184.53 | 17.50 | 223.43 | -64.16 | 71.61 | 0.9063 | -744.5 | -125.6 | |
| 2.83 | -3.00 | 3.39 | -3.00 | 18.10 | 222.58 | -65.01 | 71.05 | 0.9126 | -304.4 | 999999 | |
| 3.00 | -3.00 | 3.54 | -3.00 | 17.49 | 223.00 | -64.59 | 71.67 | 0.9093 | 193.9 | 999999 | |
| 0.00 | 0.26 | 0.00 | 0.32 | 18.65 | 221.33 | -66.26 | 70.59 | 0.9212 | -79.0 | -123.7 | |
| 8.40 | 18.68 | 10.70 | 23.67 | 17.33 | 220.91 | -66.68 | 72.06 | 0.9231 | 405.4 | 247.1 | |
| 0.00 | 0.77 | 0.00 | 0.96 | 16.33 | 221.53 | -66.06 | 73.08 | 0.9185 | 470.0 | 448.9 | |
| 2.40 | -7.00 | 3.02 | -7.00 | 16.69 | 221.21 | -66.38 | 72.72 | 0.9208 | 423.2 | 999999 | |
| 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. | |