SDO HMI 2014-12-01 00:00:25 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 | 12.47 | 0.00 | 6.85 | -23.93 | 94.94 | -5.39 | 168.22 | 0.4358 | -238.4 | -74.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-01 00:00:25 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 | 2.99 | 0.00 | 1.66 | -26.00 | 101.60 | 1.28 | 182.54 | 0.4550 | 692.0 | 608.8 | |
| 0.00 | 1.03 | 0.00 | 0.55 | -22.46 | 97.22 | -3.10 | 172.81 | 0.4017 | 660.0 | 510.6 | |
| 0.00 | 1.79 | 0.00 | 0.99 | -24.71 | 94.36 | -5.97 | 167.68 | 0.4445 | 799.0 | 637.4 | |
| 0.00 | 0.94 | 0.00 | 0.52 | -24.77 | 92.75 | -7.58 | 164.55 | 0.4515 | -717.0 | -604.1 | |
| 0.00 | 0.85 | 0.00 | 0.47 | -24.05 | 92.79 | -7.53 | 164.16 | 0.4405 | -758.0 | -594.1 | |
| 0.00 | 1.79 | 0.00 | 0.96 | -20.19 | 92.11 | -8.21 | 159.58 | 0.3859 | -943.0 | -708.2 | |
| 0.00 | 1.11 | 0.00 | 0.60 | -20.73 | 91.86 | -8.47 | 159.53 | 0.3954 | -835.0 | -582.9 | |
| 0.00 | 1.97 | 0.00 | 1.10 | -25.43 | 90.35 | -9.97 | 160.58 | 0.4724 | -805.0 | -736.5 | |
| 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. | |