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Object | Saturn |
Image type | image |
File size | 108.0 KB |
URL | s2023-07-07_01-57-35_ic johnson_.png |
Observer | Serge Dramonis |
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Comments: Interesting results were obtained when shooting Saturn. The Johnson/Cousins Ιc filter was used. The picture views a dark area. When checking the position of the satellites, it was noted that this area almost exactly coincides with the position of the satellite/shadow from inner Saturn's satellite Aegaeon. The satellite itself is difficult to detect due to its small size and low albedo. However, it is difficult to rule out that the shadow projection from the satellite is detected as slightly darker pixels, for example, from one to several. When summing frames, it is also difficult to assert that the alignment is carried out exactly according to the this pixels. Therefore, when stacking frames, darker pixels are strengthened and may expand somewhat given the long exposure time (21 minutes), the number of frames (more than 40,000). This allows not to exclude and assume that this transit of Aegaeon. Aegaeon is an inner moon of Saturn and is believed to be the main source of the G ring.
Observation 1 | |
Feature(s) | N/A |
Filter(s) | ic johnson |
Date | 2023-07-07 01:57:35 |
Julian day | 2460132.58125 |
System I | 259.74° |
System II | N/A |
System III | 239.71° |
Illumination | 100.0% |
Phase angle | 4.5° |
Solar longitude | 38.3° |
Eq. diameter | 18.2″ |
Derotation | 0.0 min |