SDO HMI 2011-01-12 12:58:55 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 |
| 2.72 | 21.47 | 1.69 | 13.39 | 22.93 | 77.11 | -26.28 | 42.22 | 0.6096 | -57.1 | -257.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-12 12:58:55 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 | 0.93 | 0.00 | 0.61 | 28.32 | 77.75 | -25.64 | 35.60 | 0.6567 | -571.0 | -429.5 | |
| 2.72 | 9.77 | 1.69 | 6.09 | 23.23 | 77.52 | -25.87 | 41.40 | 0.6085 | -979.9 | -689.6 | |
| 0.00 | 1.36 | 0.00 | 0.85 | 23.34 | 77.03 | -26.36 | 41.78 | 0.6141 | -347.0 | -387.2 | |
| 0.00 | 2.55 | 0.00 | 1.59 | 23.01 | 77.10 | -26.29 | 42.10 | 0.6103 | -799.0 | -577.5 | |
| 0.00 | 1.19 | 0.00 | 0.74 | 22.81 | 77.07 | -26.32 | 42.37 | 0.6087 | -774.0 | -637.1 | |
| 0.00 | 1.44 | 0.00 | 0.89 | 21.16 | 76.56 | -26.83 | 44.95 | 0.5982 | 885.0 | 717.7 | |
| 0.00 | 1.10 | 0.00 | 0.68 | 21.52 | 76.38 | -27.01 | 44.67 | 0.6033 | 769.0 | 647.8 | |
| 0.00 | 1.44 | 0.00 | 0.89 | 21.26 | 76.32 | -27.07 | 45.05 | 0.6014 | 670.0 | 503.5 | |
| 0.00 | 0.76 | 0.00 | 0.47 | 21.53 | 76.20 | -27.19 | 44.84 | 0.6051 | 538.0 | 430.3 | |
| 0.00 | 0.93 | 0.00 | 0.58 | 21.44 | 76.04 | -27.35 | 45.12 | 0.6058 | 675.0 | 453.1 | |
| 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. | |