SDO HMI 2014-04-21 08:00:35 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 |
| 20.78 | 77.85 | 19.52 | 73.26 | -23.24 | 117.87 | -57.67 | 114.24 | 0.8533 | 544.3 | 374.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 08:00:35 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 | 0.89 | 0.00 | 0.83 | -25.40 | 118.50 | -57.04 | 116.85 | 0.8516 | 583.0 | 399.6 | |
| 0.00 | 0.80 | 0.00 | 0.75 | -24.55 | 118.07 | -57.47 | 115.78 | 0.8537 | -106.0 | -90.6 | |
| 14.56 | 61.52 | 13.54 | 57.19 | -23.18 | 118.47 | -57.07 | 114.26 | 0.8484 | 834.3 | 429.4 | |
| 0.00 | 0.62 | 0.00 | 0.56 | -21.26 | 119.43 | -56.11 | 112.16 | 0.8374 | -441.0 | -395.0 | |
| 4.62 | -3.00 | 4.37 | -3.00 | -23.33 | 117.82 | -57.72 | 114.33 | 0.8540 | 360.0 | 999999 | |
| 0.00 | 0.89 | 0.00 | 0.84 | -22.54 | 117.61 | -57.93 | 113.38 | 0.8547 | 331.0 | 307.2 | |
| 0.00 | 2.75 | 0.00 | 2.64 | -22.93 | 117.16 | -58.38 | 113.76 | 0.8589 | 452.0 | 260.9 | |
| 0.36 | 1.51 | 0.34 | 1.43 | -22.13 | 117.64 | -57.90 | 112.90 | 0.8539 | 489.2 | 391.2 | |
| 0.00 | 6.30 | 0.00 | 6.40 | -23.89 | 115.28 | -60.26 | 114.58 | 0.8749 | 533.0 | 358.2 | |
| 1.24 | 2.57 | 1.27 | 2.62 | -22.77 | 115.00 | -60.53 | 113.27 | 0.8758 | -348.3 | -337.9 | |
| 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. | |