SDO HMI 2014-04-15 22:00:34 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 |
| 16.72 | 74.64 | 19.86 | 88.71 | -13.22 | 181.20 | -65.87 | 102.02 | 0.9101 | 136.3 | -51.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-15 22:00:34 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 | 0.97 | 0.00 | 1.01 | -9.51 | 185.06 | -62.01 | 97.81 | 0.8810 | 244.0 | 233.2 | |
| 1.95 | 4.51 | 2.24 | 5.21 | -12.79 | 181.93 | -65.14 | 101.53 | 0.9048 | -480.4 | -430.8 | |
| 9.20 | 54.03 | 10.85 | 63.97 | -13.69 | 181.31 | -65.76 | 102.53 | 0.9093 | 499.1 | 27.1 | |
| 3.27 | 13.27 | 3.97 | 16.18 | -11.75 | 180.54 | -66.53 | 100.40 | 0.9147 | 98.0 | -350.3 | |
| 2.30 | -4.00 | 2.80 | -4.00 | -11.98 | 180.42 | -66.64 | 100.66 | 0.9155 | -446.0 | 999999 | |
| 0.00 | 1.15 | 0.00 | 1.45 | -12.80 | 179.59 | -67.47 | 101.56 | 0.9211 | -377.0 | -321.2 | |
| 0.00 | 0.71 | 0.00 | 0.89 | -12.29 | 179.71 | -67.36 | 101.00 | 0.9203 | -231.0 | -181.9 | |
| 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. | |