SDO HMI 2014-04-19 23:00:34 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 | 10.28 | 0.00 | 6.22 | -21.21 | 162.15 | -31.54 | 120.76 | 0.5713 | -676.1 | -559.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-19 23:00:34 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 | 0.62 | 0.00 | 0.37 | -27.82 | 168.54 | -25.15 | 136.19 | 0.5450 | -717.0 | -558.9 | |
| 0.00 | 1.68 | 0.00 | 0.97 | -24.44 | 169.10 | -24.59 | 131.61 | 0.5088 | -860.0 | -658.2 | |
| 0.00 | 2.04 | 0.00 | 1.23 | -21.46 | 161.74 | -31.95 | 120.69 | 0.5748 | -680.0 | -483.9 | |
| 0.00 | 1.42 | 0.00 | 0.84 | -16.84 | 161.70 | -31.99 | 112.92 | 0.5526 | -689.0 | -597.9 | |
| 0.00 | 1.68 | 0.00 | 1.02 | -19.45 | 161.12 | -32.57 | 117.04 | 0.5721 | -650.0 | -529.1 | |
| 0.00 | 1.33 | 0.00 | 0.80 | -17.48 | 160.79 | -32.90 | 113.56 | 0.5674 | -622.0 | -557.5 | |
| 0.00 | 0.80 | 0.00 | 0.54 | -27.76 | 155.77 | -37.92 | 126.35 | 0.6774 | -659.0 | -594.1 | |
| 0.00 | 0.71 | 0.00 | 0.45 | -19.05 | 156.34 | -37.35 | 114.09 | 0.6305 | -532.0 | -509.4 | |
| 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. | |