SDO HMI 2014-04-15 17:00:34 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 |
| 56.49 | 362.66 | 32.56 | 208.75 | 11.90 | 275.06 | 25.23 | 304.97 | 0.5109 | -978.5 | -355.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-15 17:00:34 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 |
| 55.52 | 342.41 | 32.01 | 197.48 | 11.85 | 275.35 | 25.52 | 304.53 | 0.5138 | -1410.6 | -413.4 | |
| 0.00 | 1.24 | 0.00 | 0.68 | 8.54 | 272.20 | 22.37 | 302.15 | 0.4464 | -842.0 | -576.6 | |
| 0.00 | 0.44 | 0.00 | 0.25 | 14.31 | 272.03 | 22.19 | 312.31 | 0.4970 | -435.0 | -416.2 | |
| 0.97 | 3.45 | 0.55 | 1.93 | 12.69 | 271.03 | 21.20 | 311.02 | 0.4696 | 783.7 | 591.9 | |
| 0.00 | 6.81 | 0.00 | 3.81 | 12.80 | 270.68 | 20.85 | 311.68 | 0.4666 | 876.0 | 702.6 | |
| 0.00 | 1.15 | 0.00 | 0.65 | 14.00 | 270.46 | 20.63 | 313.90 | 0.4764 | 491.0 | 398.8 | |
| 0.00 | 1.59 | 0.00 | 0.89 | 12.92 | 270.33 | 20.50 | 312.36 | 0.4637 | 980.0 | 831.2 | |
| 0.00 | 0.80 | 0.00 | 0.44 | 14.24 | 269.06 | 19.23 | 316.27 | 0.4638 | 624.0 | 443.9 | |
| 0.00 | 1.77 | 0.00 | 0.98 | 14.47 | 268.07 | 18.24 | 318.12 | 0.4558 | 902.0 | 673.7 | |
| 0.00 | 0.88 | 0.00 | 0.49 | 13.79 | 267.72 | 17.88 | 317.63 | 0.4444 | 765.0 | 614.4 | |
| 0.00 | 2.12 | 0.00 | 1.15 | 12.26 | 266.34 | 16.51 | 317.42 | 0.4122 | 695.0 | 560.0 | |
| 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. | |