SDO HMI 2013-09-21 00:59:04 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 |
| 70.87 | 387.96 | 47.95 | 262.33 | -17.68 | 58.36 | -35.36 | 125.81 | 0.6819 | 933.5 | 318.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-09-21 00:59:04 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 |
| 66.79 | 370.16 | 44.89 | 249.15 | -17.66 | 58.71 | -35.01 | 126.03 | 0.6782 | 1218.8 | 355.4 | |
| 0.71 | -1.00 | 0.49 | -1.00 | -18.20 | 57.26 | -36.46 | 125.61 | 0.6967 | 426.8 | 999999 | |
| 0.00 | 0.89 | 0.00 | 0.60 | -15.90 | 57.40 | -36.32 | 122.83 | 0.6803 | -393.0 | -346.0 | |
| 0.00 | 2.04 | 0.00 | 1.43 | -18.96 | 56.47 | -37.25 | 125.97 | 0.7096 | -568.0 | -515.3 | |
| 0.00 | 2.21 | 0.00 | 1.55 | -16.19 | 54.87 | -38.85 | 121.50 | 0.7088 | -719.0 | -639.9 | |
| 0.00 | 1.86 | 0.00 | 1.37 | -19.58 | 53.34 | -40.38 | 124.61 | 0.7440 | -730.0 | -654.5 | |
| 1.24 | 2.04 | 0.91 | 1.49 | -16.86 | 52.27 | -41.45 | 120.72 | 0.7392 | -837.6 | -732.7 | |
| 0.00 | 2.83 | 0.00 | 2.09 | -16.92 | 51.96 | -41.76 | 120.61 | 0.7427 | -491.0 | -535.0 | |
| 0.62 | 1.77 | 0.45 | 1.30 | -16.30 | 51.96 | -41.76 | 119.86 | 0.7395 | -698.7 | -601.7 | |
| 0.80 | 2.30 | 0.64 | 1.85 | -19.07 | 48.21 | -45.51 | 121.05 | 0.7893 | 565.1 | 413.3 | |
| 0.71 | 1.86 | 0.57 | 1.50 | -19.32 | 48.03 | -45.69 | 121.24 | 0.7921 | 460.8 | 322.9 | |
| 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. | |