New Horizons "stellar" course?

No comment.

https://www.youtube.com/watch?v=rdpqZ9mJqEU

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

On 1/8/19 8:29 AM, 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. 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. Still interesting to think about and ponder the vast stellar
distances. At least it makes it a bit easier to put such numbers in
terms common folks can better understand. Thanks for sharing.

On 1/8/19 11:22 AM, JBI wrote:
On 1/8/19 8:29 AM, 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.

JBI wrote:
^^^
Your real name belongs there.

I also hope to live to see a reasonable resolution of a large star such
as Betelgeuse.

I think that

https://apod.nasa.gov/apod/ap100106.html

is a pretty good image considering that this has been taken 8 years ago,
from the ground (by IOTA, Arizona), and Betelgeuse has a diameter of
1'329'000'000 km but is 600 ly (that is, ca. 5'676'000'000'000'000 km) away
(IOW, it is 4.569 million Betelgeuses away).

Noting the basically poor resolution of Hubble of Pluto until New Horizons
got

First of all, apples and oranges. Pluto is 1.17 million times closer than
Betelgeuse, but it is also 558'400 times smaller. And it is a planet, not
a star: it does not emit any light of its own.

https://www.wolframalpha.com/input/?i=Betelgeuse+distance%2FPluto+distance

https://www.wolframalpha.com/input/?i=Betelgeuse+radius%2FPluto+radius

(note that the dot that signifies Pluto next to Betelgeuse is already
magnified 20'000 times, so that you can see it at all)

Second, considering all of this, the HST’s resolution of Pluto is actually
very good:

http://hubblesite.org/explore_astronomy/hubbles_universe_unfiltered/blogs/angular-resolution-and-what-hubble-cant-see

there doesn't give me much hope unless a super telescope is constructed
in space.

You do not need large telescopes for good resolution if you have several
small ones and can do interferometry:

https://en.wikipedia.org/wiki/Astronomical_interferometer

--
PointedEars

Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.

On 1/8/19 6:09 PM, Thomas 'PointedEars' Lahn wrote: JBI wrote:
^^^
Your real name belongs there.

I also hope to live to see a reasonable resolution of a large star such
as Betelgeuse.

I think that

https://apod.nasa.gov/apod/ap100106.html

is a pretty good image considering that this has been taken 8 years ago,
from the ground (by IOTA, Arizona), and Betelgeuse has a diameter of
1'329'000'000 km but is 600 ly (that is, ca. 5'676'000'000'000'000
km) away
(IOW, it is 4.569 million Betelgeuses away).

Yes, I am aware of that image as well as at least one other taken of
such large stars. I guess I'm just hoping that as time passes and
technology improves, there will be more resolved images.


Noting the basically poor resolution of Hubble of Pluto until New
Horizons
got

First of all, apples and oranges. Pluto is 1.17 million times closer
than
Betelgeuse, but it is also 558'400 times smaller. And it is a
planet, not
a star: it does not emit any light of its own.


https://www.wolframalpha.com/input/?i=Betelgeuse+distance%2FPluto+distance

https://www.wolframalpha.com/input/?i=Betelgeuse+radius%2FPluto+radius

(note that the dot that signifies Pluto next to Betelgeuse is already
magnified 20'000 times, so that you can see it at all)

True.


Second, considering all of this, the HST’s resolution of Pluto is
actually
very good:


http://hubblesite.org/explore_astronomy/hubbles_universe_unfiltered/blogs/angular-resolution-and-what-hubble-cant-see

there doesn't give me much hope unless a super telescope is constructed
in space.

You do not need large telescopes for good resolution if you have several
small ones and can do interferometry:

https://en.wikipedia.org/wiki/Astronomical_interferometer

I realize both Hubble and interferometers have done a lot for astronomy,
but I wonder when the next giant step in resolution will be. As far as
I know, there are no interferometer set ups in space. Even doing what
they do on Earth, without the atmosphere, I would think they would do
much better.

On 09/01/2019 01:19, JBI wrote:
On 1/8/19 6:09 PM, Thomas 'PointedEars' Lahn wrote: JBI wrote:
^^^

there doesn't give me much hope unless a super telescope is constructed
in space.

You do not need large telescopes for good resolution if you have several
small ones and can do interferometry:

https://en.wikipedia.org/wiki/Astronomical_interferometer

I realize both Hubble and interferometers have done a lot for astronomy,
but I wonder when the next giant step in resolution will be.* As far as
I know, there are no interferometer set ups in space.* Even doing what
they do on Earth, without the atmosphere, I would think they would do
much better.

The optical interferometer setups on Earth use closure phases and
closure amplitudes to get good observables despite the atmosphere (using
the same methods as radio astronomers do - indeed mostly led by them).

Obviously it would be better not to have corrupted raw data.

COAST was one of the very early ones and did some imaging of Betelgeuse

https://www.mrao.cam.ac.uk/outreach/...pergiants02-04

General introduction and links to other optical interferometers he
https://www.mrao.cam.ac.uk/outreach/...escopes/coast/

--
Regards,
Martin Brown

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/

On 1/9/19 6:50 AM, Martin Brown wrote:
On 09/01/2019 01:19, JBI wrote:
On 1/8/19 6:09 PM, Thomas 'PointedEars' Lahn wrote: JBI wrote:
* ^^^

* there doesn't give me much hope unless a super telescope is
constructed
* in space.
*
* You do not need large telescopes for good resolution if you have
several
* small ones and can do interferometry:
*
* https://en.wikipedia.org/wiki/Astronomical_interferometer

I realize both Hubble and interferometers have done a lot for
astronomy, but I wonder when the next giant step in resolution will
be.* As far as I know, there are no interferometer set ups in space.
Even doing what they do on Earth, without the atmosphere, I would
think they would do much better.

The optical interferometer setups on Earth use closure phases and
closure amplitudes to get good observables despite the atmosphere (using
the same methods as radio astronomers do - indeed mostly led by them).

Obviously it would be better not to have corrupted raw data.

COAST was one of the very early ones and did some imaging of Betelgeuse

https://www.mrao.cam.ac.uk/outreach/...pergiants02-04


General introduction and links to other optical interferometers he
https://www.mrao.cam.ac.uk/outreach/...escopes/coast/


Interesting. I guess this is how they're going to do it then, with
larger and larger interferometers in the future. Did they ever try
imaging something much closer, like say Pluto, just to confirm the
resolution increase? Maybe deemed irrelevant and a waste of time. It
does seem to clearly show increased detail on the supergiant surfaces.

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/


Getting there, those are pretty good! I guess it's just a matter of
time and money now. Thanks for the links, a good read.