SDO HMI 2011-12-12 21:58:55 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 |
| 3.23 | 14.98 | 2.04 | 9.32 | 7.80 | 45.58 | 36.40 | 283.74 | 0.6073 | -469.5 | -371.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-12 21:58:55 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 | 1.53 | 0.00 | 0.97 | 7.61 | 46.92 | 37.74 | 283.02 | 0.6250 | -559.0 | -472.1 | |
| 0.00 | 1.11 | 0.00 | 0.70 | 8.18 | 46.90 | 37.72 | 283.92 | 0.6262 | -710.0 | -621.5 | |
| 3.23 | 3.83 | 2.04 | 2.41 | 7.76 | 46.48 | 37.30 | 283.38 | 0.6195 | -811.4 | -608.7 | |
| 0.00 | 1.02 | 0.00 | 0.64 | 8.74 | 46.37 | 37.19 | 284.98 | 0.6207 | -583.0 | -466.6 | |
| 0.00 | 1.02 | 0.00 | 0.64 | 7.55 | 45.86 | 36.68 | 283.23 | 0.6106 | -695.0 | -503.7 | |
| 0.00 | 2.30 | 0.00 | 1.43 | 7.60 | 45.42 | 36.24 | 283.46 | 0.6048 | -876.0 | -738.0 | |
| 0.00 | 0.68 | 0.00 | 0.42 | 7.60 | 45.09 | 35.91 | 283.56 | 0.6003 | -802.0 | -637.5 | |
| 0.00 | 1.19 | 0.00 | 0.73 | 7.86 | 44.42 | 35.24 | 284.22 | 0.5919 | -567.0 | -478.1 | |
| 0.00 | 1.62 | 0.00 | 0.98 | 7.50 | 43.40 | 34.22 | 283.97 | 0.5768 | 690.0 | 485.4 | |
| 0.00 | 0.68 | 0.00 | 0.40 | 8.20 | 41.40 | 32.22 | 285.97 | 0.5511 | 574.0 | 580.1 | |
| 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. | |