SDO HMI 2014-03-09 02:00:28 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 |
| 6.50 | 22.60 | 6.09 | 21.24 | -26.73 | 83.99 | 57.92 | 242.95 | 0.8516 | -405.1 | -352.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-09 02:00:28 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 | 1.30 | 0.00 | 1.31 | -25.85 | 86.74 | 60.67 | 244.35 | 0.8724 | -259.0 | -253.2 | |
| 4.16 | 9.35 | 3.92 | 8.83 | -26.54 | 84.17 | 58.10 | 243.21 | 0.8529 | -373.7 | -253.2 | |
| 0.00 | 0.78 | 0.00 | 0.76 | -28.10 | 85.17 | 59.10 | 241.56 | 0.8629 | -198.0 | -226.6 | |
| 0.00 | 1.21 | 0.00 | 1.13 | -26.43 | 83.58 | 57.51 | 243.24 | 0.8480 | -424.0 | -412.0 | |
| 1.82 | 5.20 | 1.69 | 4.83 | -26.62 | 83.67 | 57.60 | 243.04 | 0.8490 | -676.4 | -521.2 | |
| 0.00 | 1.73 | 0.00 | 1.62 | -27.02 | 83.87 | 57.80 | 242.60 | 0.8511 | -314.0 | -355.1 | |
| 0.52 | 2.08 | 0.48 | 1.94 | -27.08 | 83.60 | 57.53 | 242.49 | 0.8491 | -627.7 | -512.0 | |
| 0.00 | 0.95 | 0.00 | 0.82 | -28.64 | 80.06 | 53.99 | 239.97 | 0.8222 | -166.0 | -208.1 | |
| 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. | |