SDO HMI 2011-02-28 20:58:58 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 |
| 18.27 | 61.10 | 10.00 | 33.34 | -23.05 | 180.29 | -19.80 | 131.93 | 0.4204 | -394.5 | 61.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-28 20:58:58 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 |
| 4.14 | 7.15 | 2.20 | 3.81 | -21.60 | 183.27 | -16.82 | 133.29 | 0.3713 | 975.8 | 682.4 | |
| 0.00 | 5.08 | 0.00 | 2.75 | -22.27 | 181.30 | -18.79 | 131.74 | 0.4012 | 476.0 | 594.3 | |
| 0.00 | 3.19 | 0.00 | 1.72 | -21.99 | 181.24 | -18.85 | 131.09 | 0.3993 | 1115.0 | 887.4 | |
| 0.00 | 1.81 | 0.00 | 0.98 | -22.84 | 181.08 | -19.01 | 132.58 | 0.4094 | -984.0 | -816.8 | |
| 0.00 | 0.78 | 0.00 | 0.42 | -22.16 | 181.05 | -19.05 | 131.18 | 0.4033 | 663.0 | 492.7 | |
| 0.00 | 10.08 | 0.00 | 5.45 | -21.79 | 180.83 | -19.26 | 130.12 | 0.4024 | 1003.0 | 767.3 | |
| 0.00 | 1.38 | 0.00 | 0.75 | -23.16 | 180.56 | -19.53 | 132.48 | 0.4186 | -941.0 | -738.1 | |
| 0.00 | 1.29 | 0.00 | 0.70 | -22.60 | 180.47 | -19.62 | 131.28 | 0.4143 | -753.0 | -506.5 | |
| 0.00 | 2.50 | 0.00 | 1.37 | -23.61 | 180.18 | -19.91 | 132.83 | 0.4273 | -819.0 | -516.3 | |
| 0.00 | 0.69 | 0.00 | 0.38 | -25.00 | 179.74 | -20.35 | 134.76 | 0.4458 | -674.0 | -530.0 | |
| 8.36 | 24.21 | 4.61 | 13.38 | -24.10 | 179.20 | -20.90 | 132.48 | 0.4433 | -1070.2 | -648.5 | |
| 0.00 | 0.78 | 0.00 | 0.43 | -24.90 | 178.99 | -21.11 | 133.65 | 0.4533 | -740.0 | -616.8 | |
| 0.00 | 0.52 | 0.00 | 0.29 | -24.68 | 178.78 | -21.31 | 133.00 | 0.4534 | -658.0 | -594.8 | |
| 5.77 | -11.00 | 3.19 | -11.00 | -23.99 | 178.76 | -21.33 | 131.74 | 0.4472 | -931.7 | 999999 | |
| 0.00 | 1.64 | 0.00 | 0.91 | -24.04 | 178.48 | -21.62 | 131.49 | 0.4510 | -609.0 | -591.7 | |
| 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. | |