SDO HMI 2011-10-08 01:59:03 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 | 5.97 | 0.00 | 3.23 | -13.52 | 144.64 | -12.50 | 148.24 | 0.4015 | -152.6 | -241.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-08 01:59:03 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 | 0.97 | 0.00 | 0.52 | -15.01 | 148.29 | -8.86 | 157.74 | 0.3943 | 691.0 | 551.3 | |
| 0.00 | 0.88 | 0.00 | 0.47 | -13.67 | 148.31 | -8.84 | 156.38 | 0.3742 | 950.0 | 799.7 | |
| 0.00 | 1.40 | 0.00 | 0.76 | -12.66 | 143.43 | -13.72 | 144.40 | 0.3991 | -861.0 | -720.1 | |
| 0.00 | 1.23 | 0.00 | 0.67 | -13.18 | 143.15 | -14.00 | 144.61 | 0.4084 | -829.0 | -690.5 | |
| 0.00 | 1.49 | 0.00 | 0.81 | -13.55 | 142.55 | -14.59 | 144.01 | 0.4186 | -714.0 | -534.4 | |
| 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. | |