SDO HMI 2014-05-21 05:00:38 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 |
| 20.16 | 71.66 | 18.27 | 66.05 | -18.02 | 196.88 | 56.28 | 249.81 | 0.8444 | 185.1 | 125.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-21 05:00:38 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 | 1.26 | 0.00 | 1.25 | -19.45 | 199.32 | 58.72 | 248.59 | 0.8676 | -173.0 | -212.9 | |
| 0.00 | 0.90 | 0.00 | 0.82 | -16.02 | 196.99 | 56.39 | 252.17 | 0.8430 | 603.0 | 454.6 | |
| 0.00 | 2.34 | 0.00 | 2.15 | -16.49 | 197.08 | 56.48 | 251.63 | 0.8444 | 198.0 | 190.7 | |
| 4.68 | 52.85 | 4.44 | 49.92 | -18.66 | 197.90 | 57.30 | 249.25 | 0.8547 | 603.9 | 217.9 | |
| 4.14 | -4.00 | 3.91 | -4.00 | -18.44 | 197.78 | 57.19 | 249.48 | 0.8534 | 772.7 | 999999 | |
| 0.99 | -4.00 | 0.93 | -4.00 | -18.16 | 197.47 | 56.87 | 249.75 | 0.8502 | 559.9 | 999999 | |
| 0.00 | 1.17 | 0.00 | 1.06 | -16.41 | 196.53 | 55.93 | 251.63 | 0.8394 | -40.0 | 29.3 | |
| 3.87 | -4.00 | 3.63 | -4.00 | -18.60 | 197.52 | 56.92 | 249.24 | 0.8513 | 798.4 | 999999 | |
| 0.00 | 0.27 | 0.00 | 0.23 | -16.40 | 193.51 | 52.92 | 251.09 | 0.8112 | -317.0 | -247.3 | |
| 0.00 | 1.53 | 0.00 | 1.28 | -16.31 | 193.27 | 52.67 | 251.14 | 0.8086 | -430.0 | -466.8 | |
| 6.03 | 9.72 | 5.01 | 8.07 | -16.03 | 192.95 | 52.36 | 251.42 | 0.8051 | -754.1 | -522.5 | |
| 0.45 | 1.62 | 0.35 | 1.27 | -15.97 | 190.26 | 49.66 | 250.91 | 0.7777 | -375.0 | -392.2 | |
| 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. | |