SDO HMI 2014-07-31 15:01:25 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 | 13.13 | 0.00 | 6.96 | 9.50 | 256.89 | -18.62 | 76.89 | 0.3385 | 413.1 | 487.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-31 15:01:25 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 | 0.91 | 0.00 | 0.46 | 16.58 | 268.18 | -7.34 | 32.92 | 0.2263 | -817.0 | -710.7 | |
| 0.00 | 0.81 | 0.00 | 0.42 | 16.69 | 266.73 | -8.79 | 37.42 | 0.2419 | -820.0 | -577.0 | |
| 0.00 | 1.72 | 0.00 | 0.87 | 4.83 | 262.52 | -13.00 | 93.33 | 0.2255 | 919.0 | 726.4 | |
| 0.00 | 1.27 | 0.00 | 0.66 | 11.00 | 258.05 | -17.46 | 71.88 | 0.3113 | 719.0 | 585.8 | |
| 0.00 | 1.18 | 0.00 | 0.63 | 15.59 | 256.41 | -19.10 | 60.74 | 0.3629 | 791.0 | 703.5 | |
| 0.00 | 1.27 | 0.00 | 0.67 | 4.49 | 255.62 | -19.90 | 92.62 | 0.3412 | 812.0 | 616.1 | |
| 0.00 | 3.26 | 0.00 | 1.72 | 4.36 | 255.36 | -20.16 | 92.94 | 0.3455 | 917.0 | 794.4 | |
| 0.00 | 1.00 | 0.00 | 0.53 | 2.83 | 255.13 | -20.38 | 97.24 | 0.3522 | 623.0 | 495.5 | |
| 0.00 | 0.36 | 0.00 | 0.19 | 13.08 | 254.07 | -21.45 | 69.28 | 0.3824 | 512.0 | 484.8 | |
| 0.00 | 0.54 | 0.00 | 0.30 | 15.65 | 251.89 | -23.63 | 64.94 | 0.4278 | 398.0 | 483.8 | |
| 0.00 | 0.81 | 0.00 | 0.51 | 21.58 | 240.77 | -34.74 | 61.34 | 0.6062 | 490.0 | 425.4 | |
| 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. | |