SDO HMI 2014-07-23 12:00:40 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 |
| 14.42 | 72.22 | 11.81 | 58.93 | -21.12 | 69.47 | 46.47 | 238.40 | 0.7961 | 472.3 | 168.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-23 12:00:40 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 |
| 13.24 | 61.87 | 10.87 | 50.85 | -21.12 | 69.83 | 46.83 | 238.59 | 0.7993 | 829.7 | 187.6 | |
| 0.00 | 1.45 | 0.00 | 1.17 | -21.06 | 69.00 | 46.00 | 238.25 | 0.7916 | 540.0 | 433.6 | |
| 1.18 | 2.27 | 0.94 | 1.81 | -20.68 | 68.75 | 45.75 | 238.57 | 0.7876 | 627.2 | 525.6 | |
| 0.00 | 0.73 | 0.00 | 0.58 | -21.22 | 68.83 | 45.82 | 237.98 | 0.7907 | 487.0 | 416.6 | |
| 0.00 | 2.09 | 0.00 | 1.64 | -21.47 | 67.48 | 44.48 | 237.01 | 0.7796 | 643.0 | 485.3 | |
| 0.00 | 0.82 | 0.00 | 0.62 | -20.89 | 65.91 | 42.90 | 236.82 | 0.7621 | -587.0 | -516.3 | |
| 0.00 | 0.45 | 0.00 | 0.35 | -21.12 | 65.85 | 42.85 | 236.52 | 0.7628 | -562.0 | -538.4 | |
| 0.00 | 0.73 | 0.00 | 0.55 | -21.43 | 64.85 | 41.85 | 235.59 | 0.7550 | -541.0 | -482.6 | |
| 0.00 | 1.81 | 0.00 | 1.36 | -21.45 | 64.64 | 41.64 | 235.45 | 0.7531 | -705.0 | -592.6 | |
| 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. | |