SDO HMI 2014-11-04 04:00:28 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 |
| 0.00 | 7.61 | 0.00 | 4.45 | -21.71 | 75.87 | -18.18 | 146.93 | 0.5208 | 509.8 | 423.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-11-04 04:00:28 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 | 0.86 | 0.00 | 0.48 | -20.04 | 79.99 | -14.07 | 150.69 | 0.4683 | 874.0 | 730.5 | |
| 0.00 | 1.04 | 0.00 | 0.59 | -20.29 | 78.91 | -15.14 | 149.16 | 0.4798 | 682.0 | 574.0 | |
| 0.00 | 1.21 | 0.00 | 0.69 | -20.53 | 78.56 | -15.49 | 148.85 | 0.4856 | 753.0 | 537.3 | |
| 0.00 | 0.61 | 0.00 | 0.34 | -20.93 | 78.15 | -15.90 | 148.66 | 0.4939 | 238.0 | 293.4 | |
| 0.00 | 1.04 | 0.00 | 0.59 | -20.63 | 78.15 | -15.90 | 148.32 | 0.4902 | 644.0 | 484.4 | |
| 0.00 | 1.04 | 0.00 | 0.61 | -22.82 | 76.41 | -17.64 | 148.13 | 0.5311 | 736.0 | 593.2 | |
| 0.00 | 1.12 | 0.00 | 0.65 | -20.39 | 75.65 | -18.40 | 144.24 | 0.5083 | 642.0 | 440.2 | |
| 0.00 | 0.69 | 0.00 | 0.50 | -28.79 | 59.98 | -34.08 | 137.29 | 0.7263 | -491.0 | -420.1 | |
| 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. | |