SDO HMI 2014-10-12 09:00:31 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 | 9.46 | 0.00 | 5.12 | 14.17 | 56.80 | 22.15 | 292.54 | 0.3970 | 348.9 | 413.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-12 09:00:31 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 | 2.89 | 0.00 | 1.59 | 12.84 | 59.87 | 25.22 | 287.09 | 0.4365 | 820.0 | 633.4 | |
| 0.00 | 0.88 | 0.00 | 0.49 | 18.56 | 60.52 | 25.86 | 298.71 | 0.4734 | -567.0 | -509.6 | |
| 0.00 | 1.05 | 0.00 | 0.58 | 15.72 | 59.06 | 24.41 | 293.97 | 0.4371 | -871.0 | -622.2 | |
| 0.00 | 0.44 | 0.00 | 0.24 | 12.90 | 57.79 | 23.14 | 288.38 | 0.4053 | 603.0 | 547.2 | |
| 0.00 | 1.75 | 0.00 | 0.93 | 13.38 | 54.76 | 20.11 | 291.77 | 0.3617 | 849.0 | 743.0 | |
| 0.00 | 1.05 | 0.00 | 0.56 | 13.18 | 54.38 | 19.73 | 291.57 | 0.3550 | 825.0 | 733.8 | |
| 0.00 | 1.40 | 0.00 | 0.73 | 15.08 | 49.94 | 15.28 | 302.20 | 0.3021 | 783.0 | 669.6 | |
| 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. | |