SDO HMI 2014-04-20 14:00:34 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 |
| 91.15 | 447.73 | 52.23 | 255.17 | 17.94 | 166.73 | -18.73 | 38.05 | 0.4963 | -438.4 | -282.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 14:00:34 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 |
| 21.02 | 387.33 | 11.90 | 219.32 | 18.16 | 168.07 | -17.38 | 35.91 | 0.4859 | -1162.8 | -388.2 | |
| 15.61 | -1.00 | 8.81 | -1.00 | 17.77 | 167.95 | -17.51 | 36.60 | 0.4824 | -1460.9 | 999999 | |
| 24.56 | -1.00 | 13.92 | -1.00 | 17.85 | 167.41 | -18.05 | 37.33 | 0.4883 | -1157.3 | 999999 | |
| 7.18 | -1.00 | 4.09 | -1.00 | 17.87 | 166.84 | -18.62 | 38.15 | 0.4938 | -769.4 | 999999 | |
| 3.28 | -1.00 | 1.86 | -1.00 | 17.68 | 166.86 | -18.60 | 38.38 | 0.4913 | -944.2 | 999999 | |
| 0.00 | 1.15 | 0.00 | 0.66 | 18.37 | 165.67 | -19.78 | 39.18 | 0.5105 | -622.0 | -465.2 | |
| 0.00 | 1.60 | 0.00 | 0.92 | 18.20 | 165.66 | -19.80 | 39.41 | 0.5088 | -643.0 | -318.6 | |
| 0.00 | 1.06 | 0.00 | 0.62 | 17.91 | 163.66 | -21.79 | 42.48 | 0.5252 | 839.0 | 655.8 | |
| 0.00 | 1.15 | 0.00 | 0.67 | 17.47 | 163.27 | -22.18 | 43.58 | 0.5245 | 741.0 | 623.9 | |
| 0.00 | 1.60 | 0.00 | 0.93 | 17.31 | 163.19 | -22.26 | 43.90 | 0.5237 | 874.0 | 720.8 | |
| 0.00 | 1.24 | 0.00 | 0.74 | 20.03 | 162.71 | -22.75 | 40.93 | 0.5567 | 771.0 | 636.7 | |
| 0.00 | 1.86 | 0.00 | 1.11 | 19.77 | 162.47 | -22.98 | 41.54 | 0.5563 | 687.0 | 610.5 | |
| 0.00 | 1.60 | 0.00 | 0.93 | 17.50 | 162.59 | -22.87 | 44.40 | 0.5318 | 850.0 | 697.4 | |
| 0.00 | 1.86 | 0.00 | 1.11 | 19.22 | 162.07 | -23.39 | 42.73 | 0.5546 | 857.0 | 702.1 | |
| 0.00 | 1.95 | 0.00 | 1.16 | 18.99 | 162.10 | -23.35 | 42.99 | 0.5519 | 788.0 | 588.4 | |
| 0.00 | 0.98 | 0.00 | 0.57 | 17.09 | 162.30 | -23.16 | 45.33 | 0.5307 | 780.0 | 615.0 | |
| 0.00 | 2.66 | 0.00 | 1.57 | 18.47 | 162.00 | -23.45 | 43.79 | 0.5476 | 787.0 | 719.9 | |
| 0.53 | 2.22 | 0.32 | 1.31 | 18.73 | 161.93 | -23.52 | 43.53 | 0.5510 | 904.8 | 758.3 | |
| 0.00 | 0.98 | 0.00 | 0.57 | 17.20 | 161.80 | -23.65 | 45.76 | 0.5371 | 755.0 | 666.5 | |
| 12.59 | 37.51 | 7.51 | 22.38 | 18.00 | 160.51 | -24.95 | 46.15 | 0.5584 | 1000.0 | 518.0 | |
| 6.38 | -20.00 | 3.82 | -20.00 | 18.02 | 160.12 | -25.34 | 46.56 | 0.5626 | 721.8 | 999999 | |
| 0.00 | 0.98 | 0.00 | 0.60 | 14.85 | 155.13 | -30.32 | 55.91 | 0.5915 | -680.0 | -641.7 | |
| 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. | |