SDO HMI 2014-09-17 18:00:34 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 |
| 8.95 | 34.68 | 7.60 | 29.80 | -20.97 | 311.84 | -47.77 | 122.11 | 0.8180 | 13.3 | -184.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-17 18:00:34 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 |
| 1.95 | 3.90 | 1.58 | 3.15 | -20.87 | 314.79 | -44.82 | 123.51 | 0.7922 | 712.1 | 566.6 | |
| 0.89 | 2.48 | 0.73 | 2.03 | -20.82 | 314.17 | -45.45 | 123.12 | 0.7975 | 675.7 | 585.3 | |
| 0.00 | 2.31 | 0.00 | 1.89 | -20.57 | 313.99 | -45.63 | 122.74 | 0.7978 | 744.0 | 549.3 | |
| 1.86 | 3.90 | 1.54 | 3.23 | -20.62 | 313.46 | -46.16 | 122.52 | 0.8027 | 424.1 | 282.3 | |
| 0.53 | 1.77 | 0.45 | 1.48 | -20.36 | 312.72 | -46.90 | 121.84 | 0.8080 | 532.2 | 357.9 | |
| 0.00 | 0.27 | 0.00 | 0.23 | -21.49 | 311.42 | -48.19 | 122.44 | 0.8240 | -699.0 | -680.3 | |
| 0.00 | 1.86 | 0.00 | 1.64 | -21.57 | 310.94 | -48.67 | 122.30 | 0.8283 | -615.0 | -530.4 | |
| 0.80 | 1.95 | 0.70 | 1.71 | -21.23 | 310.95 | -48.67 | 121.93 | 0.8268 | -687.4 | -615.6 | |
| 1.15 | 14.11 | 1.02 | 12.56 | -21.31 | 310.52 | -49.10 | 121.80 | 0.8307 | -676.0 | -495.0 | |
| 1.06 | -9.00 | 0.95 | -9.00 | -21.00 | 310.21 | -49.40 | 121.32 | 0.8320 | -742.6 | 999999 | |
| 0.71 | 2.13 | 0.63 | 1.88 | -20.76 | 310.27 | -49.35 | 121.09 | 0.8305 | -703.6 | -605.2 | |
| 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. | |