SDO HMI 2014-05-17 03:00:38 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 |
| 14.12 | 27.51 | 12.84 | 25.15 | -8.38 | 251.76 | 57.16 | 261.60 | 0.8421 | -4.2 | -12.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-17 03:00:38 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 |
| 0.72 | 3.24 | 0.69 | 3.10 | -8.91 | 253.43 | 58.82 | 261.06 | 0.8576 | 431.6 | 335.8 | |
| 0.00 | 0.63 | 0.00 | 0.59 | -7.68 | 252.84 | 58.23 | 262.48 | 0.8519 | 373.0 | 322.7 | |
| 5.57 | 8.27 | 5.24 | 7.78 | -8.02 | 252.85 | 58.25 | 262.09 | 0.8522 | 477.7 | 215.2 | |
| 0.00 | 0.54 | 0.00 | 0.50 | -8.56 | 252.22 | 57.62 | 261.42 | 0.8466 | 608.0 | 551.7 | |
| 0.00 | 1.26 | 0.00 | 1.15 | -9.28 | 251.60 | 56.99 | 260.52 | 0.8412 | -238.0 | -158.2 | |
| 2.70 | 4.04 | 2.43 | 3.65 | -9.30 | 251.21 | 56.60 | 260.48 | 0.8375 | -462.4 | -304.2 | |
| 0.00 | 2.34 | 0.00 | 2.09 | -9.22 | 250.91 | 56.30 | 260.56 | 0.8346 | -449.0 | -483.9 | |
| 2.61 | 7.19 | 2.28 | 6.29 | -7.74 | 250.14 | 55.54 | 262.29 | 0.8266 | -411.9 | -229.8 | |
| 2.52 | -8.00 | 2.20 | -8.00 | -7.56 | 250.05 | 55.45 | 262.50 | 0.8256 | -501.4 | 999999 | |
| 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. | |