SDO HMI 2014-09-28 16:00:33 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 |
| 19.66 | 117.27 | 22.10 | 132.81 | -0.98 | 151.89 | -63.65 | 94.45 | 0.9004 | 530.1 | 203.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-28 16:00:33 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 |
| 19.40 | 112.88 | 21.80 | 127.21 | -0.95 | 152.04 | -63.50 | 94.44 | 0.8993 | 690.1 | 215.2 | |
| 0.26 | -1.00 | 0.30 | -1.00 | -0.61 | 151.57 | -63.97 | 93.99 | 0.9025 | 267.0 | 999999 | |
| 0.00 | 0.88 | 0.00 | 1.06 | -0.68 | 150.07 | -65.46 | 93.84 | 0.9134 | 94.0 | 60.4 | |
| 0.00 | 0.26 | 0.00 | 0.33 | -2.11 | 149.24 | -66.29 | 95.26 | 0.9205 | 347.0 | 270.3 | |
| 0.00 | 1.23 | 0.00 | 1.57 | -2.35 | 148.99 | -66.54 | 95.48 | 0.9224 | 167.0 | 178.4 | |
| 0.00 | 0.26 | 0.00 | 0.34 | -3.24 | 148.89 | -66.65 | 96.42 | 0.9241 | -94.0 | -171.0 | |
| 0.00 | 0.88 | 0.00 | 1.14 | -3.04 | 148.76 | -66.77 | 96.19 | 0.9247 | -237.0 | -187.2 | |
| 0.00 | 0.88 | 0.00 | 1.16 | -1.62 | 148.12 | -67.41 | 94.57 | 0.9275 | -244.0 | -183.3 | |
| 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. | |