https://forums.space.com/threads/the-morning-star-venus-returns-to-the-dawn-sky-this-month.53956/
How possible is it that large ground based telescopes on the surface of Earth or space telescopes in Earth orbit including perhaps Hubble could observe Venus and see these or similiar surface of low atmosphere features on Venus in the far red end of the visible spectrum on a more regular basis?
Could ground based telescopes see Venus in the red part of the visible spectrum or could Hubble and get good images with some detail?
The Hubble likely won't because, IIRC, it must never look at regions that are within 50 deg. of the Sun. The JWST is likley farther than this given its great sensitivity.
Venus Cloud Tops Viewed by Hubble | NASA Solar System Exploration
That's cool! The HST is capable of such imaging with some kind of on-board filter, IIRC. It imaged the Moon, IIRC, which is also not allowed normally.HST did image Venus in 1995, here is a view, quite a view too compared to what I see using my telescope, even at 200x with blue filter
In my telescope views, especially my 90-mm refractor at 200x, depending upon the phase, Venus is generally a bland sight say compared to Jupiter with all the cloud banding visible. Using my blue planetary filter, at times I can see some cloud banding on Venus, mostly near the equator area but not like JupiterThat's cool! The HST is capable of such imaging with some kind of on-board filter, IIRC. It imaged the Moon, IIRC, which is also not allowed normally.
I don't think we have a nice natural color image of Venus yet. Some images show it as white with some very minor fluffy structure. Other images are more yellow, brown and orange representing more of what is below the top atmosphere.
My hope, given the article's headline, was to see a color image, but "color" isn't mentioned once.
Here is a Jan 2022 article on the color of Venus that looks interesting.
Isn't it a bit strange we don't have color images for Venus? We have them for Pluto.
When I observed Venus this month I did not use a filter and it was bright, white light to my eyes
I suspect the subtle color shading on Venus will be very difficult to see from Earth due to the atmospheric effects of both turbulence and color extinctions.In my telescope views, especially my 90-mm refractor at 200x, depending upon the phase, Venus is generally a bland sight say compared to Jupiter with all the cloud banding visible. Using my blue planetary filter, at times I can see some cloud banding on Venus, mostly near the equator area but not like Jupiter
Helio, when I use my #12 Yellow filter, Venus looks more yellow too, green filter can be cool too
This reminds me of the thermos joke.
No surface features of Venus can be seen from ground on the Earth.
OK, thank you. But is it because we can't see at the extreme part of the visible from Earth to see these surface features on Venus that were seen from closer range by the Parker Solar Probe or is it that we simply don't yet have large enough telescopes on Earth in these wavelengths that we can't see some of the surface features seen in visible on Venus by the Parker Solar Probe on its flyby past Venus? Also what visible wavelengths was the Parker Solar Probe focused on when it was able to get some surface detail of Venus? If an image of Venus in visible wavelengths weren't taken first or yet of Venus because we don't yet have large enough telescopes with large enough effective mirror diameter, how large a telescope or mirror diameter would a telescope in visible light even focused on the red end of the visible on Earth have to be to be able to determine some surface features on Venus?
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