SDO HMI 2014-08-02 01:00:39 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 |
| 13.67 | 27.23 | 7.63 | 15.22 | -20.51 | 248.91 | -7.85 | 163.93 | 0.4632 | 759.3 | 518.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-02 01:00:39 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 | 0.72 | 0.00 | 0.39 | -17.11 | 251.31 | -5.46 | 166.86 | 0.4018 | -695.0 | -501.2 | |
| 0.00 | 0.72 | 0.00 | 0.40 | -18.50 | 251.23 | -5.54 | 167.48 | 0.4237 | 629.0 | 556.1 | |
| 0.00 | 1.09 | 0.00 | 0.60 | -20.39 | 251.13 | -5.64 | 168.23 | 0.4530 | 772.0 | 626.1 | |
| 13.67 | 20.18 | 7.63 | 11.26 | -20.45 | 248.93 | -7.83 | 163.90 | 0.4621 | 1027.5 | 612.3 | |
| 0.00 | 0.81 | 0.00 | 0.47 | -23.24 | 248.74 | -8.02 | 165.20 | 0.5039 | 341.0 | 389.3 | |
| 0.00 | 2.35 | 0.00 | 1.31 | -19.56 | 247.51 | -9.25 | 160.50 | 0.4557 | 780.0 | 563.8 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -24.14 | 246.96 | -9.80 | 162.69 | 0.5242 | 683.0 | 494.5 | |
| 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. | |