SDO HMI 2014-04-20 19:00:34 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 |
| 0.00 | 28.54 | 0.00 | 15.52 | -19.92 | 164.24 | -18.45 | 131.28 | 0.4124 | -686.8 | -543.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 19:00:34 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 | 2.04 | 0.00 | 1.11 | -29.72 | 183.88 | 1.19 | 182.48 | 0.4179 | 692.0 | 538.7 | |
| 0.00 | 1.68 | 0.00 | 0.87 | -17.44 | 170.64 | -12.06 | 137.13 | 0.2942 | -831.0 | -687.6 | |
| 0.00 | 2.22 | 0.00 | 1.16 | -18.32 | 168.03 | -14.66 | 133.80 | 0.3344 | -933.0 | -723.4 | |
| 0.00 | 1.60 | 0.00 | 0.86 | -23.40 | 167.10 | -15.60 | 142.02 | 0.4027 | -853.0 | -574.2 | |
| 0.00 | 2.93 | 0.00 | 1.58 | -20.11 | 163.94 | -18.75 | 131.00 | 0.4017 | -725.0 | -567.6 | |
| 0.00 | 2.13 | 0.00 | 1.18 | -22.60 | 162.18 | -20.51 | 133.31 | 0.4465 | -729.0 | -592.4 | |
| 0.00 | 1.42 | 0.00 | 0.78 | -21.82 | 161.54 | -21.16 | 131.11 | 0.4465 | -604.0 | -521.6 | |
| 0.00 | 1.68 | 0.00 | 0.93 | -22.20 | 161.44 | -21.25 | 131.67 | 0.4511 | -895.0 | -750.7 | |
| 0.00 | 1.15 | 0.00 | 0.62 | -16.83 | 162.18 | -20.51 | 121.77 | 0.3962 | -909.0 | -802.5 | |
| 0.00 | 1.68 | 0.00 | 0.93 | -20.62 | 161.31 | -21.39 | 128.59 | 0.4385 | -678.0 | -609.6 | |
| 0.00 | 1.33 | 0.00 | 0.72 | -18.23 | 161.64 | -21.06 | 124.20 | 0.4143 | -878.0 | -664.9 | |
| 0.00 | 3.37 | 0.00 | 1.79 | -9.99 | 161.81 | -20.88 | 104.38 | 0.3640 | -682.0 | -586.7 | |
| 0.00 | 2.39 | 0.00 | 1.31 | -18.47 | 160.34 | -22.35 | 123.26 | 0.4332 | -814.0 | -576.6 | |
| 0.00 | 1.86 | 0.00 | 1.07 | -23.40 | 157.89 | -24.81 | 129.79 | 0.5032 | -808.0 | -678.0 | |
| 0.00 | 1.06 | 0.00 | 0.61 | -22.36 | 157.01 | -25.68 | 127.17 | 0.5050 | -655.0 | -538.8 | |
| 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. | |