SDO HMI 2014-08-21 21:00:38 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 |
| 23.82 | 156.04 | 14.34 | 93.35 | 16.49 | 27.97 | 33.40 | 289.42 | 0.5615 | -614.3 | -344.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-21 21:00:38 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 |
| 23.82 | 129.87 | 14.34 | 78.23 | 16.30 | 28.66 | 34.09 | 288.76 | 0.5703 | -1152.2 | -371.2 | |
| 0.00 | 1.08 | 0.00 | 0.64 | 16.80 | 26.68 | 32.11 | 290.38 | 0.5450 | -615.0 | -471.2 | |
| 0.00 | 1.53 | 0.00 | 0.90 | 17.29 | 26.62 | 32.06 | 291.30 | 0.5460 | -659.0 | -519.8 | |
| 0.00 | 0.54 | 0.00 | 0.32 | 19.57 | 27.11 | 32.54 | 295.03 | 0.5615 | -612.0 | -504.3 | |
| 0.00 | 4.85 | 0.00 | 2.87 | 17.61 | 26.57 | 32.01 | 291.88 | 0.5465 | -661.0 | -621.6 | |
| 0.00 | 8.45 | 0.00 | 4.95 | 17.22 | 25.86 | 31.29 | 291.50 | 0.5353 | -749.0 | -717.3 | |
| 0.00 | 0.99 | 0.00 | 0.58 | 17.18 | 25.56 | 30.99 | 291.56 | 0.5310 | -817.0 | -649.6 | |
| 0.00 | 1.35 | 0.00 | 0.76 | 18.57 | 21.83 | 27.26 | 296.29 | 0.4863 | 637.0 | 541.5 | |
| 0.00 | 1.35 | 0.00 | 0.76 | 18.12 | 21.00 | 26.43 | 295.97 | 0.4725 | 774.0 | 619.6 | |
| 0.00 | 1.44 | 0.00 | 0.80 | 16.94 | 20.39 | 25.82 | 293.99 | 0.4579 | 729.0 | 601.9 | |
| 0.00 | 1.44 | 0.00 | 0.80 | 17.28 | 20.40 | 25.84 | 294.68 | 0.4599 | 861.0 | 680.9 | |
| 0.00 | 0.99 | 0.00 | 0.55 | 19.17 | 20.53 | 25.96 | 298.39 | 0.4720 | 647.0 | 598.5 | |
| 0.00 | 2.16 | 0.00 | 1.19 | 16.79 | 19.80 | 25.24 | 294.06 | 0.4489 | 808.0 | 724.9 | |
| 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. | |