SDO HMI 2011-08-30 00:59:08 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 |
| 17.74 | 68.10 | 16.97 | 65.57 | -20.37 | 259.44 | -53.11 | 118.99 | 0.8593 | 421.8 | 149.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 00:59:08 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 |
| 3.85 | 19.53 | 3.64 | 18.34 | -20.47 | 260.21 | -52.34 | 119.42 | 0.8536 | 579.9 | 668.3 | |
| 13.08 | 26.88 | 12.54 | 25.81 | -20.95 | 259.81 | -52.74 | 119.77 | 0.8584 | 616.7 | 250.5 | |
| 0.00 | 0.81 | 0.00 | 0.81 | -21.92 | 258.64 | -53.91 | 120.32 | 0.8705 | 406.0 | 272.0 | |
| 0.00 | 1.25 | 0.00 | 1.25 | -20.93 | 258.34 | -54.21 | 119.15 | 0.8695 | 384.0 | 241.5 | |
| 0.00 | 1.08 | 0.00 | 1.05 | -20.02 | 258.70 | -53.85 | 118.32 | 0.8638 | 442.0 | 291.4 | |
| 0.00 | 0.54 | 0.00 | 0.52 | -19.86 | 258.67 | -53.88 | 118.13 | 0.8635 | 405.0 | 348.3 | |
| 0.81 | 14.96 | 0.79 | 14.79 | -19.52 | 258.40 | -54.15 | 117.66 | 0.8645 | 204.8 | -394.6 | |
| 0.00 | 1.25 | 0.00 | 1.24 | -19.08 | 257.84 | -54.71 | 116.96 | 0.8675 | -439.0 | -417.6 | |
| 0.00 | 0.99 | 0.00 | 0.96 | -18.07 | 258.05 | -54.50 | 115.94 | 0.8628 | -534.0 | -469.3 | |
| 0.00 | 0.81 | 0.00 | 0.80 | -18.04 | 257.11 | -55.44 | 115.55 | 0.8700 | -559.0 | -481.8 | |
| 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. | |