Venus Image 2025/04/08(UT)
Paul G. Abel,Anthony Wesley
P.Abel,Anthony.W
| Paul G. Abel |
The planet can now be found in the morning sky. The phase is still quite small at around 9% and although the apparent diameter is large,there was little to see on the disk.[Paul G. Abel:Leicester:United Kingdom]
| Anthony Wesley |
Hi all, some good seeing this morning on Venus for about 30 minutes. Phil and I recorded 5 runs between 1926utc and 2024utc using a 1000nm-1020nm bandpass filter set and prime focus on his 508mm F/4 newt with the modified iDS U3-34E0XCP (imx664 w/out sensor cover glass). The first animation below shows how the thermal signal depends on the altitude of Venus and the Sun. There's only a very short window of about 20 minutes where the thermal signal is at its best currently. Hopefully this window will extend as Venus moves further from the Sun in the coming weeks however it will also get smaller and the lit crescent will get larger. The second animation is the comparison between our merged thermal image (weighted average of the 5 images shown in the first animation) and a Winjupos reference image. A number of surface features can be matched, including the "rabbit ears" or arms of Aphrodite rising on the limb at right. A couple of anomalous bright spots can be seen in this image, the brightest is just left of Aphrodite and corresponds to the bright spot observed in a previous apparition (http://www.acquerra.au/astro/venus/nightside-2022/).
[Anthony Wesley,Murrumbateman Australia] ≪アンソニ オーストラリア≫
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Venus Section
2025/04/09
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