SDO HMI 2014-03-15 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 |
| 1.31 | 9.56 | 0.75 | 5.54 | 12.65 | 282.12 | -24.33 | 50.75 | 0.5212 | 277.9 | 179.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-15 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 |
| 0.96 | 2.69 | 0.55 | 1.55 | 12.46 | 282.89 | -23.56 | 50.15 | 0.5106 | -788.5 | -577.1 | |
| 0.35 | 2.26 | 0.20 | 1.30 | 12.78 | 282.79 | -23.66 | 49.77 | 0.5147 | -396.0 | -355.1 | |
| 0.00 | 2.26 | 0.00 | 1.32 | 12.53 | 281.50 | -24.95 | 51.64 | 0.5272 | 635.0 | 678.5 | |
| 0.00 | 0.87 | 0.00 | 0.51 | 12.96 | 281.26 | -25.19 | 51.27 | 0.5339 | 882.0 | 786.6 | |
| 0.00 | 1.48 | 0.00 | 0.86 | 12.77 | 281.17 | -25.28 | 51.64 | 0.5332 | 712.0 | 622.4 | |
| 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. | |