https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, 11 October 2022 at 00:58:30 UTC-4, palsing wrote:

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

Earth-based image I said.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Monday, October 10, 2022 at 10:30:29 PM UTC-7, RichA wrote:

On Tuesday, 11 October 2022 at 00:58:30 UTC-4, palsing wrote:

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

Earth-based image I said.

Yes, I understand... I am just pointing out the the Earth-based photos cannot hold a candle to the space-based photos. I am afriad that this will always be the case...

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Mon, 10 Oct 2022 22:50:27 -0700 (PDT), palsing <pnalsing@gmail.com>
wrote:

On Monday, October 10, 2022 at 10:30:29 PM UTC-7, RichA wrote:

On Tuesday, 11 October 2022 at 00:58:30 UTC-4, palsing wrote:

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

Earth-based image I said.

Yes, I understand... I am just pointing out the the Earth-based photos cannot hold a candle to the space-based photos. I am afriad that this will always be the case...

That is true... but Earth-based images allow for lines of research
that are not generally possible from space. Outside of specialized
missions intended for specific purposes, ground-based observations
will always have the advantage of utilizing filters and instruments
not available in space. That's what we have here. The importance of
these images lies not in their resolution, but in their resolution
combined with the chosen wavelengths, revealing geological details
that no space-based missions have been able to reveal.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 11, 2022 at 7:08:09 AM UTC-7, Chris L Peterson wrote:

On Mon, 10 Oct 2022 22:50:27 -0700 (PDT), palsing <pnal...@gmail.com>
wrote:

On Monday, October 10, 2022 at 10:30:29 PM UTC-7, RichA wrote:

On Tuesday, 11 October 2022 at 00:58:30 UTC-4, palsing wrote:

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

Earth-based image I said.

Yes, I understand... I am just pointing out the the Earth-based photos cannot hold a candle to the space-based photos. I am afriad that this will always be the case...

That is true... but Earth-based images allow for lines of research
that are not generally possible from space. Outside of specialized
missions intended for specific purposes, ground-based observations
will always have the advantage of utilizing filters and instruments
not available in space. That's what we have here. The importance of
these images lies not in their resolution, but in their resolution
combined with the chosen wavelengths, revealing geological details
that no space-based missions have been able to reveal.

Ok... but in this particular case, the ground based pictures were based upon the infrared spectrum, so wouldn't we expect the JWST to someday provide superior results?

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tue, 11 Oct 2022 08:39:31 -0700 (PDT), palsing <pnalsing@gmail.com>
wrote:

On Tuesday, October 11, 2022 at 7:08:09 AM UTC-7, Chris L Peterson wrote:

On Mon, 10 Oct 2022 22:50:27 -0700 (PDT), palsing <pnal...@gmail.com>
wrote:

On Monday, October 10, 2022 at 10:30:29 PM UTC-7, RichA wrote:

On Tuesday, 11 October 2022 at 00:58:30 UTC-4, palsing wrote:

On Monday, October 10, 2022 at 8:43:43 PM UTC-7, RichA wrote:

https://phys.org/news/2022-10-sharpest-earth-based-images-europa-ganymede.html

Those, of course, are not the best views of this moon...

https://www.google.com/search?q=pictures+of+ganymede&rlz=1C1GTPM_enUS1017US1018&sxsrf=ALiCzsbP2pD0d6GSB1mYCEUhK_2MnKs8rg:1665464241137&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjrperjsdf6AhX6MUQIHeCADowQ_AUoAXoECAIQAw&biw=1536&bih=809&dpr=2.5

Earth-based image I said.

Yes, I understand... I am just pointing out the the Earth-based photos cannot hold a candle to the space-based photos. I am afriad that this will always be the case...

That is true... but Earth-based images allow for lines of research
that are not generally possible from space. Outside of specialized
missions intended for specific purposes, ground-based observations
will always have the advantage of utilizing filters and instruments
not available in space. That's what we have here. The importance of
these images lies not in their resolution, but in their resolution
combined with the chosen wavelengths, revealing geological details
that no space-based missions have been able to reveal.

Ok... but in this particular case, the ground based pictures were based upon the infrared spectrum, so wouldn't we expect the JWST to someday provide superior results?

Maybe. But JWST is limited to the narrow bands that its filters
provide, and those filters are what they are. I don't know if it has
the right ones for this particular application. But more generally, if
somebody comes up with a particular spectral observation program for
some object, it can always be tried from a ground-based telescope.
It's a matter of luck if the right instruments already exist in space.

(The JWST filters were chosen primarily for specific cosmological
research, so there's a good chance that the right bands for planetary
research aren't available.)

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)