SDO HMI 2014-09-27 07:00:33 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 | 9.73 | 0.00 | 6.31 | 5.91 | 273.36 | 39.69 | 270.74 | 0.6308 | 601.3 | 508.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-27 07:00:33 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 | 1.33 | 0.00 | 1.10 | 9.13 | 287.47 | 53.80 | 276.28 | 0.8038 | 345.0 | 257.0 | |
| 0.00 | 1.24 | 0.00 | 0.94 | 4.01 | 283.36 | 49.69 | 269.41 | 0.7631 | 536.0 | 393.4 | |
| 0.00 | 0.62 | 0.00 | 0.39 | 1.21 | 272.19 | 38.52 | 263.33 | 0.6292 | 512.0 | 410.1 | |
| 0.00 | 4.42 | 0.00 | 2.63 | 6.65 | 267.49 | 33.82 | 271.66 | 0.5552 | 756.0 | 639.3 | |
| 0.00 | 0.97 | 0.00 | 0.58 | 6.44 | 267.40 | 33.73 | 271.28 | 0.5540 | 747.0 | 564.1 | |
| 0.00 | 1.15 | 0.00 | 0.67 | 2.62 | 265.05 | 31.38 | 263.76 | 0.5253 | 712.0 | 581.3 | |
| 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. | |