SDO HMI 2014-08-27 04:00:37 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 | 4.95 | 0.00 | 3.74 | -11.69 | 330.18 | 45.54 | 247.66 | 0.7582 | 62.0 | 66.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-27 04:00:37 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 | 0.27 | 0.00 | 0.23 | -10.66 | 337.30 | 52.66 | 251.78 | 0.8247 | 343.0 | 345.0 | |
| 0.00 | 1.26 | 0.00 | 0.98 | -9.90 | 332.53 | 47.89 | 250.96 | 0.7753 | 489.0 | 443.6 | |
| 0.00 | 0.45 | 0.00 | 0.34 | -10.27 | 331.47 | 46.82 | 250.07 | 0.7655 | 517.0 | 460.0 | |
| 0.00 | 0.72 | 0.00 | 0.52 | -5.00 | 330.11 | 45.46 | 256.33 | 0.7331 | 633.0 | 500.2 | |
| 0.00 | 0.81 | 0.00 | 0.65 | -15.28 | 331.72 | 47.08 | 244.11 | 0.7874 | -348.0 | -349.1 | |
| 0.00 | 0.81 | 0.00 | 0.58 | -15.44 | 325.20 | 40.56 | 240.49 | 0.7224 | -570.0 | -430.9 | |
| 0.00 | 0.63 | 0.00 | 0.44 | -14.94 | 324.63 | 39.98 | 240.78 | 0.7137 | -630.0 | -476.9 | |
| 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. | |