SDO HMI 2014-07-30 16:00:40 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 |
| 20.00 | 53.87 | 17.72 | 47.68 | -18.69 | 237.08 | -51.12 | 117.13 | 0.8302 | -208.0 | -145.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-30 16:00:40 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 | 1.00 | 0.00 | 0.78 | -17.08 | 242.12 | -46.08 | 117.45 | 0.7781 | 369.0 | 346.5 | |
| 0.00 | 0.63 | 0.00 | 0.50 | -16.61 | 241.86 | -46.34 | 116.76 | 0.7787 | 546.0 | 489.6 | |
| 0.72 | 3.26 | 0.60 | 2.68 | -17.98 | 240.21 | -47.98 | 117.63 | 0.7998 | 641.9 | 524.3 | |
| 4.44 | 7.33 | 3.69 | 6.10 | -18.21 | 239.74 | -48.46 | 117.69 | 0.8051 | 598.5 | 394.6 | |
| 0.81 | 2.17 | 0.68 | 1.82 | -18.40 | 239.37 | -48.82 | 117.75 | 0.8092 | 536.8 | 401.4 | |
| 0.00 | 1.81 | 0.00 | 1.60 | -18.52 | 237.02 | -51.18 | 116.89 | 0.8305 | -630.0 | -431.6 | |
| 5.43 | 26.44 | 4.92 | 24.08 | -19.01 | 236.23 | -51.96 | 117.13 | 0.8388 | -727.8 | -202.8 | |
| 3.53 | 11.23 | 3.19 | 10.12 | -18.53 | 236.13 | -52.06 | 116.55 | 0.8381 | -752.4 | -537.0 | |
| 5.07 | -7.00 | 4.64 | -7.00 | -19.18 | 235.79 | -52.41 | 117.15 | 0.8431 | -338.9 | 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. | |