金星 ALPO-Japan Latest

Venus Image 2022/02/07(UT)

Stanislas Maksymowicz,Anthony Wesley
S.Maksymowicz,Anthony.W

---

Here is a venus report performed last 7th feb with the 102mm refractor under good images.
A faint to very faint AL was noted especially on the red channel and with no filter use (yellowish red color,intensity faint).

[Stanislas Maksymowicz  Ecquevilly,France]

Hi all, we wanted to show a couple of results from the current Venus night side thermal imaging that Phil Miles and I are working on. 
The camera we're using (Lucid TRI051S-MC) is performing well, 
we've changed from the native F/4 to F/5 to minimize a persistent optical artifact that seems to be on-sensor based somehow. 
To do this we added a Brandon 1.25x MDB (Magic Dakin Barlow) and now there are very few problems apart from the obvious glare off the dayside crescent.
I've attached two animations blinking between our data and a topographic map and you can see that many features match between the two. 
Higher altitudes are cooler and show as dark areas. Conversely low lying areas are hotter and show as brighter spots.
There will also be some contribution from Venusian clouds obscuring some of the landscape, it will be interesting to analyze this all in detail.

[Anthony Wesley,Murrumbateman Australia]
≪アンソニ  オーストラリア≫

ALPO-Japan Latest Venus Section	2022/02/09
	2022/02/05