SDO HMI 2013-09-20 11:59:04 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 |
| 57.69 | 370.29 | 43.20 | 278.03 | -17.62 | 58.55 | -42.34 | 121.12 | 0.7519 | 587.2 | 221.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-09-20 11:59:04 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 |
| 54.94 | 351.43 | 40.95 | 262.64 | -17.65 | 58.84 | -42.05 | 121.30 | 0.7493 | 898.1 | 259.3 | |
| 0.00 | 0.97 | 0.00 | 0.75 | -18.33 | 57.06 | -43.83 | 121.10 | 0.7700 | -215.0 | -203.4 | |
| 0.00 | 1.15 | 0.00 | 0.89 | -18.48 | 56.88 | -44.01 | 121.17 | 0.7724 | 446.0 | 275.6 | |
| 0.71 | 3.63 | 0.55 | 2.84 | -18.83 | 56.63 | -44.26 | 121.45 | 0.7765 | -568.8 | -466.1 | |
| 0.00 | 1.77 | 0.00 | 1.43 | -15.31 | 53.30 | -47.59 | 115.68 | 0.7923 | -462.0 | -427.5 | |
| 0.00 | 1.24 | 0.00 | 1.03 | -17.03 | 52.70 | -48.19 | 117.38 | 0.8048 | -627.0 | -594.6 | |
| 0.00 | 1.24 | 0.00 | 1.03 | -16.87 | 52.61 | -48.28 | 117.17 | 0.8050 | -782.0 | -673.8 | |
| 0.00 | 0.62 | 0.00 | 0.52 | -16.60 | 52.42 | -48.47 | 116.76 | 0.8057 | -618.0 | -521.3 | |
| 0.00 | 1.24 | 0.00 | 1.04 | -17.28 | 52.13 | -48.75 | 117.41 | 0.8110 | -310.0 | -332.3 | |
| 0.00 | 2.04 | 0.00 | 1.71 | -17.08 | 52.16 | -48.73 | 117.20 | 0.8100 | -645.0 | -554.0 | |
| 2.04 | 3.63 | 1.70 | 3.03 | -16.36 | 52.17 | -48.72 | 116.38 | 0.8071 | -629.5 | -500.2 | |
| 0.00 | 0.62 | 0.00 | 0.52 | -16.66 | 52.06 | -48.83 | 116.68 | 0.8092 | -459.0 | -409.0 | |
| 0.00 | 0.71 | 0.00 | 0.60 | -15.66 | 51.34 | -49.55 | 115.21 | 0.8120 | -479.0 | -421.4 | |
| 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. | |