SDO HMI 2011-10-20 07:59:01 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 |
| 8.37 | 27.03 | 5.04 | 16.39 | 19.13 | 322.41 | -33.15 | 64.19 | 0.5763 | 653.8 | 514.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 07:59:01 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 | 1.57 | 0.00 | 0.89 | 15.16 | 327.82 | -27.74 | 68.30 | 0.4855 | 697.0 | 521.1 | |
| 0.00 | 1.05 | 0.00 | 0.61 | 17.72 | 326.24 | -29.32 | 64.39 | 0.5194 | -816.0 | -636.0 | |
| 0.00 | 0.96 | 0.00 | 0.56 | 18.20 | 325.42 | -30.14 | 64.01 | 0.5327 | 911.0 | 782.1 | |
| 8.37 | 11.24 | 5.04 | 6.77 | 19.35 | 322.93 | -32.63 | 63.48 | 0.5708 | 889.8 | 688.8 | |
| 0.00 | 1.66 | 0.00 | 1.00 | 19.00 | 322.78 | -32.78 | 64.14 | 0.5711 | 856.0 | 646.4 | |
| 0.00 | 1.66 | 0.00 | 1.01 | 19.71 | 322.16 | -33.40 | 63.30 | 0.5823 | 633.0 | 467.7 | |
| 0.00 | 1.66 | 0.00 | 1.01 | 19.40 | 322.05 | -33.51 | 63.87 | 0.5823 | 727.0 | 541.2 | |
| 0.00 | 0.78 | 0.00 | 0.48 | 16.26 | 321.44 | -34.12 | 69.37 | 0.5776 | 383.0 | 456.2 | |
| 0.00 | 1.66 | 0.00 | 1.04 | 21.61 | 319.80 | -35.76 | 61.53 | 0.6203 | 613.0 | 529.0 | |
| 0.00 | 1.57 | 0.00 | 0.94 | 13.05 | 321.56 | -34.00 | 74.85 | 0.5665 | 687.0 | 555.5 | |
| 0.00 | 0.87 | 0.00 | 0.56 | 22.34 | 318.75 | -36.82 | 60.97 | 0.6362 | 638.0 | 510.6 | |
| 0.00 | 2.35 | 0.00 | 1.52 | 22.73 | 318.38 | -37.18 | 60.57 | 0.6423 | 673.0 | 581.4 | |
| 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. | |