SDO HMI 2014-12-04 14:00:25 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 |
| 7.60 | 26.80 | 14.54 | 53.27 | -15.82 | 127.89 | 74.76 | 253.48 | 0.9681 | 101.1 | 52.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 14:00:25 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 | 4.95 | 0.00 | 13.45 | -15.33 | 132.06 | 78.93 | 254.31 | 0.9839 | 130.0 | 29.3 | |
| 4.95 | 16.98 | 9.41 | 32.67 | -15.32 | 127.33 | 74.20 | 253.99 | 0.9666 | 232.5 | 102.3 | |
| 2.65 | -2.00 | 5.13 | -2.00 | -15.81 | 127.59 | 74.46 | 253.50 | 0.9679 | -77.1 | 999999 | |
| 0.00 | 0.26 | 0.00 | 0.42 | -17.30 | 124.66 | 71.53 | 251.68 | 0.9552 | 203.0 | 211.7 | |
| 0.00 | 1.79 | 0.00 | 2.60 | -17.55 | 122.01 | 68.88 | 251.11 | 0.9415 | -83.0 | -88.4 | |
| 0.00 | 1.54 | 0.00 | 2.19 | -17.61 | 121.62 | 68.49 | 251.00 | 0.9394 | -380.0 | -310.1 | |
| 0.00 | 1.28 | 0.00 | 1.94 | -20.10 | 122.52 | 69.39 | 248.50 | 0.9462 | 313.0 | 305.5 | |
| 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. | |