SDO HMI 2014-03-12 03:00:29 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 |
| 4.85 | 19.08 | 4.99 | 19.67 | -17.87 | 48.08 | 62.09 | 253.55 | 0.8788 | 83.0 | 201.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-12 03:00:29 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 |
| 1.04 | 5.64 | 1.13 | 6.08 | -17.97 | 49.70 | 63.71 | 253.47 | 0.8915 | 514.1 | 505.5 | |
| 0.00 | 0.87 | 0.00 | 0.86 | -14.17 | 46.80 | 60.81 | 257.78 | 0.8681 | 211.0 | 171.9 | |
| 0.00 | 0.69 | 0.00 | 0.72 | -17.38 | 48.35 | 62.36 | 254.11 | 0.8810 | 132.0 | 187.0 | |
| 0.69 | 2.08 | 0.72 | 2.15 | -17.25 | 48.07 | 62.09 | 254.25 | 0.8788 | 543.2 | 477.8 | |
| 0.00 | 0.61 | 0.00 | 0.63 | -17.50 | 48.09 | 62.10 | 253.97 | 0.8789 | 393.0 | 402.6 | |
| 1.74 | 3.99 | 1.78 | 4.09 | -18.93 | 47.82 | 61.84 | 252.33 | 0.8772 | -160.4 | 41.4 | |
| 0.43 | 1.39 | 0.42 | 1.35 | -15.81 | 46.06 | 60.07 | 255.88 | 0.8620 | 369.2 | 374.8 | |
| 0.95 | 3.38 | 0.94 | 3.36 | -18.58 | 46.69 | 60.70 | 252.68 | 0.8679 | -541.9 | -398.8 | |
| 0.00 | 0.43 | 0.00 | 0.43 | -19.17 | 47.05 | 61.06 | 252.03 | 0.8710 | -608.0 | -574.6 | |
| 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. | |