SDO HMI 2014-03-30 14:00:31 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 |
| 2.19 | 22.43 | 2.48 | 25.80 | -25.33 | 167.49 | 64.85 | 245.04 | 0.9041 | -29.6 | -54.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 14:00:31 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 | 1.75 | 0.00 | 2.14 | -24.93 | 169.33 | 66.69 | 245.63 | 0.9160 | -366.0 | -316.5 | |
| 0.00 | 4.91 | 0.00 | 5.89 | -24.66 | 168.79 | 66.15 | 245.89 | 0.9124 | -521.0 | -373.3 | |
| 0.00 | 2.19 | 0.00 | 2.58 | -25.57 | 168.20 | 65.55 | 244.84 | 0.9090 | -141.0 | -184.1 | |
| 0.00 | 0.61 | 0.00 | 0.71 | -25.30 | 167.60 | 64.96 | 245.09 | 0.9049 | -243.0 | -247.9 | |
| 0.00 | 0.44 | 0.00 | 0.48 | -24.29 | 166.02 | 63.37 | 246.08 | 0.8933 | 292.0 | 249.8 | |
| 0.00 | 2.10 | 0.00 | 2.28 | -24.12 | 165.72 | 63.08 | 246.23 | 0.8911 | 125.0 | 145.5 | |
| 2.19 | 8.59 | 2.48 | 9.70 | -26.06 | 166.89 | 64.24 | 244.19 | 0.9006 | 599.2 | 359.9 | |
| 0.00 | 0.61 | 0.00 | 0.67 | -25.43 | 165.97 | 63.32 | 244.79 | 0.8938 | -588.0 | -514.1 | |
| 0.00 | 1.23 | 0.00 | 1.35 | -25.58 | 166.11 | 63.46 | 244.64 | 0.8949 | -354.0 | -322.1 | |
| 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. | |