SDO HMI 2011-01-04 19:58:55 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 |
| 61.64 | 400.43 | 38.79 | 252.08 | 31.31 | 188.56 | -16.31 | 22.92 | 0.6185 | -1119.0 | -358.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-04 19:58:55 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 |
| 58.50 | 389.40 | 36.75 | 244.86 | 31.24 | 188.63 | -16.24 | 22.88 | 0.6173 | -1329.5 | -371.0 | |
| 0.00 | 1.78 | 0.00 | 1.23 | 37.59 | 187.03 | -17.85 | 20.38 | 0.6998 | 289.0 | 327.7 | |
| 0.00 | 2.55 | 0.00 | 1.69 | 34.98 | 187.34 | -17.54 | 21.76 | 0.6685 | 745.0 | 598.2 | |
| 0.00 | 0.93 | 0.00 | 0.60 | 32.68 | 187.57 | -17.31 | 23.12 | 0.6403 | -433.0 | -265.2 | |
| 1.36 | -1.00 | 0.86 | -1.00 | 31.59 | 187.67 | -17.21 | 23.81 | 0.6267 | -383.2 | 999999 | |
| 0.00 | 1.87 | 0.00 | 1.14 | 28.20 | 187.88 | -17.00 | 26.28 | 0.5841 | -660.0 | -573.3 | |
| 1.78 | 2.46 | 1.18 | 1.63 | 33.85 | 185.67 | -19.20 | 24.38 | 0.6641 | 743.1 | 577.8 | |
| 0.00 | 1.44 | 0.00 | 0.93 | 31.73 | 185.82 | -19.06 | 25.87 | 0.6389 | -632.0 | -534.1 | |
| 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. | |