SDO HMI 2014-10-12 08:00:31 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 |
| 0.35 | 6.66 | 0.25 | 4.15 | 14.38 | 358.42 | -36.79 | 74.56 | 0.6033 | -554.7 | -409.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-12 08:00:31 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 | 1.23 | 0.00 | 0.70 | 10.49 | 4.90 | -30.30 | 79.57 | 0.5065 | -677.0 | -506.7 | |
| 0.00 | 0.61 | 0.00 | 0.36 | 13.66 | 3.21 | -32.00 | 73.99 | 0.5378 | -690.0 | -634.1 | |
| 0.00 | 2.45 | 0.00 | 1.50 | 12.40 | 359.17 | -36.04 | 77.24 | 0.5913 | -155.0 | -241.3 | |
| 0.00 | 0.88 | 0.00 | 0.54 | 12.51 | 358.92 | -36.28 | 77.11 | 0.5949 | -611.0 | -461.9 | |
| 0.35 | 1.49 | 0.25 | 1.05 | 21.00 | 351.13 | -44.08 | 66.27 | 0.7117 | -623.5 | -503.2 | |
| 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. | |