SDO HMI 2014-04-17 04:00:34 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 |
| 20.54 | 106.28 | 15.63 | 81.05 | -13.25 | 181.02 | -49.54 | 102.80 | 0.7617 | 376.6 | 64.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-17 04:00:34 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 | 0.44 | 0.00 | 0.30 | -13.17 | 187.47 | -43.09 | 103.45 | 0.6862 | 428.0 | 475.8 | |
| 0.62 | 2.66 | 0.46 | 1.95 | -12.73 | 182.80 | -47.76 | 102.27 | 0.7413 | 622.0 | 486.3 | |
| 15.14 | 77.67 | 11.47 | 58.88 | -13.54 | 181.32 | -49.24 | 103.20 | 0.7587 | 967.5 | 207.4 | |
| 0.00 | 0.89 | 0.00 | 0.69 | -15.57 | 180.40 | -50.16 | 105.75 | 0.7708 | 533.0 | 512.3 | |
| 1.95 | 3.45 | 1.50 | 2.66 | -11.97 | 180.30 | -50.25 | 101.06 | 0.7687 | -698.9 | -604.4 | |
| 2.83 | 14.79 | 2.20 | 11.53 | -12.57 | 180.09 | -50.46 | 101.82 | 0.7713 | -853.4 | -580.5 | |
| 0.00 | 1.15 | 0.00 | 0.89 | -12.13 | 180.02 | -50.54 | 101.25 | 0.7719 | -655.0 | -547.3 | |
| 0.00 | 0.97 | 0.00 | 0.76 | -12.34 | 179.96 | -50.60 | 101.52 | 0.7726 | -456.0 | -406.3 | |
| 0.00 | 1.42 | 0.00 | 1.12 | -14.09 | 179.10 | -51.46 | 103.70 | 0.7831 | -458.0 | -344.8 | |
| 0.00 | 1.42 | 0.00 | 1.12 | -9.52 | 178.88 | -51.68 | 97.84 | 0.7833 | 237.0 | 266.0 | |
| 0.00 | 1.42 | 0.00 | 1.15 | -12.06 | 177.74 | -52.82 | 101.02 | 0.7960 | 191.0 | 135.4 | |
| 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. | |