SDO HMI 2014-03-02 22:00:28 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 |
| 0.60 | 13.81 | 0.36 | 8.15 | -11.70 | 74.15 | -33.16 | 100.34 | 0.5466 | -333.7 | -248.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-02 22:00:28 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 | 3.19 | 0.00 | 1.86 | -11.42 | 75.46 | -31.86 | 100.02 | 0.5275 | 537.0 | 627.9 | |
| 0.00 | 1.04 | 0.00 | 0.60 | -11.15 | 75.49 | -31.82 | 99.52 | 0.5267 | 902.0 | 755.2 | |
| 0.00 | 1.90 | 0.00 | 1.13 | -12.12 | 73.85 | -33.47 | 101.06 | 0.5515 | -791.0 | -670.0 | |
| 0.00 | 1.55 | 0.00 | 0.92 | -11.90 | 73.77 | -33.55 | 100.66 | 0.5524 | -875.0 | -758.4 | |
| 0.00 | 1.47 | 0.00 | 0.87 | -11.88 | 73.52 | -33.80 | 100.59 | 0.5560 | -681.0 | -567.2 | |
| 0.60 | 4.66 | 0.36 | 2.77 | -11.70 | 73.43 | -33.88 | 100.24 | 0.5569 | -892.9 | -666.2 | |
| 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. | |