SDO HMI 2014-04-15 04:00:34 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 |
| 0.00 | 8.84 | 0.00 | 7.59 | -17.19 | 202.26 | -54.71 | 107.06 | 0.8171 | 157.4 | -15.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-15 04:00:34 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 | 0.80 | 0.00 | 0.60 | -14.38 | 207.67 | -49.30 | 104.17 | 0.7597 | 453.0 | 388.4 | |
| 0.00 | 0.71 | 0.00 | 0.54 | -13.80 | 207.22 | -49.75 | 103.35 | 0.7641 | 463.0 | 354.8 | |
| 0.00 | 0.88 | 0.00 | 0.69 | -14.78 | 206.43 | -50.54 | 104.55 | 0.7735 | 566.0 | 466.1 | |
| 0.00 | 0.97 | 0.00 | 0.90 | -22.38 | 199.98 | -56.98 | 113.03 | 0.8446 | 540.0 | 458.0 | |
| 0.00 | 0.80 | 0.00 | 0.70 | -18.27 | 201.24 | -55.72 | 108.30 | 0.8286 | -442.0 | -424.6 | |
| 0.00 | 0.88 | 0.00 | 0.76 | -15.50 | 202.03 | -54.94 | 105.02 | 0.8189 | -350.0 | -314.7 | |
| 0.00 | 3.80 | 0.00 | 3.40 | -17.49 | 200.54 | -56.43 | 107.30 | 0.8345 | -128.0 | -216.3 | |
| 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. | |