SDO HMI 2014-03-04 19:00:28 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 | 8.98 | 0.00 | 4.51 | -12.46 | 76.15 | -6.48 | 134.09 | 0.1487 | 282.3 | 183.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 19:00:28 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 | 2.07 | 0.00 | 1.03 | -10.97 | 81.08 | -1.54 | 157.85 | 0.0705 | 747.0 | 588.4 | |
| 0.00 | 1.30 | 0.00 | 0.65 | -14.55 | 77.36 | -5.26 | 145.19 | 0.1562 | 920.0 | 701.1 | |
| 0.00 | 0.95 | 0.00 | 0.48 | -13.98 | 76.91 | -5.71 | 140.67 | 0.1530 | 937.0 | 752.5 | |
| 0.00 | 1.38 | 0.00 | 0.69 | -10.26 | 76.00 | -6.63 | 115.22 | 0.1261 | 1007.0 | 728.8 | |
| 0.00 | 2.16 | 0.00 | 1.09 | -13.78 | 72.91 | -9.72 | 125.20 | 0.2015 | -912.0 | -594.3 | |
| 0.00 | 1.12 | 0.00 | 0.57 | -11.63 | 71.57 | -11.05 | 112.77 | 0.2045 | -1005.0 | -787.9 | |
| 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. | |