New Horizons "stellar" course?

On 1/9/19 7:19 AM, wrote:
On Tuesday, January 8, 2019 at 4:48:49 PM UTC-5, JBI wrote:
On 1/8/19 11:22 AM, JBI wrote:
On 1/8/19 8:29 AM, wsnell01 wrote:
On Friday, January 4, 2019 at 8:51:04 AM UTC-5, JBI wrote:
Cannot find this information anywhere, but curious where New Horizons
would be heading in the long term, in other words what star? And also
are there any more visits to other objects planned besides the latest?
Thank you.

Here is a link with some cool info and other links about where the
five spacecraft are going:

https://space.stackexchange.com/ques...imately-headed



Yes, I was aware of the Voyagers and others, but was a bit off on the
distance.Â* I thought Voyager I was a little further along than it was. I
was thinking one light day, but about 3/4 of that at roughly 17 light
hours.Â* Still interesting to think about and ponder the vast stellar
distances.Â* At least it makes it a bit easier to put such numbers in
terms common folks can better understand.Â* Thanks for sharing.

I also hope to live to see a reasonable resolution of a large star such
as Betelgeuse. Noting the basically poor resolution of Hubble of Pluto
until New Horizons got there doesn't give me much hope unless a super
telescope is constructed in space. Always possible, but I probably
won't live to see it.

Not as detailed as you want, but here are some articles with pics:

https://astrobob.areavoices.com/2014...ks-you-betcha/

https://www.popularmechanics.com/spa...un-betelgeuse/


By the way, I wonder what's going on with R Doradus with its "spiked"
appearance. I wonder if it's the nature of the IR band causing it, or
maybe that's how it really appears? Strange.

On Wed, 9 Jan 2019 13:26:49 -0500, JBI wrote:

By the way, I wonder what's going on with R Doradus with its "spiked"
appearance. I wonder if it's the nature of the IR band causing it, or
maybe that's how it really appears? Strange.

It's simply an artifact of the mathematical process used to
reconstruct a spatial image from the raw interferometric data.

On 09/01/2019 18:26, JBI wrote:
On 1/9/19 7:19 AM, wrote:
On Tuesday, January 8, 2019 at 4:48:49 PM UTC-5, JBI wrote:
On 1/8/19 11:22 AM, JBI wrote:
On 1/8/19 8:29 AM, wsnell01 wrote:
On Friday, January 4, 2019 at 8:51:04 AM UTC-5, JBI wrote:
Cannot find this information anywhere, but curious where New Horizons
would be heading in the long term, in other words what star? And also
are there any more visits to other objects planned besides the
latest?
Thank you.

Here is a link with some cool info and other links about where the
five spacecraft are going:

https://space.stackexchange.com/ques...imately-headed




Yes, I was aware of the Voyagers and others, but was a bit off on the
distance.Â* I thought Voyager I was a little further along than it
was. I
was thinking one light day, but about 3/4 of that at roughly 17 light
hours.Â* Still interesting to think about and ponder the vast stellar
distances.Â* At least it makes it a bit easier to put such numbers in
terms common folks can better understand.Â* Thanks for sharing.

I also hope to live to see a reasonable resolution of a large star such
as Betelgeuse.Â* Noting the basically poor resolution of Hubble of Pluto
until New Horizons got there doesn't give me much hope unless a super
telescope is constructed in space.Â* Always possible, but I probably
won't live to see it.

Not as detailed as you want, but here are some articles with pics:

https://astrobob.areavoices.com/2014...ks-you-betcha/


https://www.popularmechanics.com/spa...un-betelgeuse/



By the way, I wonder what's going on with R Doradus with its "spiked"
appearance.Â* I wonder if it's the nature of the IR band causing it, or
maybe that's how it really appears?Â* Strange.

It is the method used which is essentially a set of holes at carefully
chosen positions in a big mask across a large aperture.

The classic pattern for a small number of holes is Golumbs ruler which
allows the maximum number of unique baseline correlations to be measured
for a given number of ticks (in this case holes).

N baselines measured
2: 0 1 {0,1}
3: 0 1 3 {0,1,2,3}
4: 0 1 4 6 {0,1,2,3,4,5,6}

It is speckle imaging which is closer to aperture synthesis radio
astronomy than conventional optical imaging see for more details:

https://www.eso.org/public/usa/news/eso9706/

--
Regards,
Martin Brown