|
WOW! Simply beautiful!
More rare than hens teeth...
😎
Pete
On Jul 31, 2020, at 6:17 PM, Roland Christen via groups.io <chris1011@...> wrote:
Hi Astronuts,
Today I finished the last of the 10" F14.5 Maks, which will go to whoever is on our list. This is the last of my hand figured Maks that I plan to make of this size and focal length in production. It used to be that there was much more visual astronomy than there is today, probably because imaging was hard in the film days and for the first couple of years when we had small chips to do electronic imaging. Nowadays it is impossible to get visual views that remotely resemble what you can do with a few thousand bucks worth of electronic equipment.
That said, here is my last production Mak, aimed at a far distant telephone pole insulator which has a glint of sunshine that shows up as an artificial star. With a 5mm SPL ocular (737x) I see a tight high contrast Airy disc at focus. For those who don't know what that is - an Airy disc is the smallest resolvable spot from a distant point source that can be seen in any telescope. For a 10" it's approximately 4.5 arc seconds, and is surrounded by a few faint diffraction rings. With a scope like this I once saw the Sirius Pup in the Florida Keys when the separation was a mere 4 arc seconds.
Business end of the mighty Mak
Let there be light and minimal obstruction
The little Stowaway couldn't help hitching a ride on it's big sister
|
|
|
Well, I have imaged the Moon and Planets with mine (earlier version) and could not be happier with its performance. I may be part of the end of the era of visual observations and am happy to say I have spent hours and hours at the
eyepiece of telescopes. I can certainly image more detail on Jupiter with my 10” than I can see but the longer I look the more I can see. And, in my opinion, very few images match the aesthetic beauty of Jupiter through the eyepiece of my telescope!
Jim Phillips
 <main@ap-gto.groups.io>
on behalf of Pete Lardizabal <p14@...>
toggle quoted messageShow quoted text
Sent: Friday, July 31, 2020 6:32 PM
To: main@ap-ug.groups.io
Cc: main@ap-gto.groups.io
Subject: Re: [ap-gto] [ap-ug] End of an era?
WOW! Simply beautiful!
More rare than hens teeth...
😎
Pete
On Jul 31, 2020, at 6:17 PM, Roland Christen via groups.io <chris1011@...> wrote:
Hi Astronuts,
Today I finished the last of the 10" F14.5 Maks, which will go to whoever is on our list. This is the last of my hand figured Maks that I plan to make of this size and focal length in production. It used to be that there was much more visual
astronomy than there is today, probably because imaging was hard in the film days and for the first couple of years when we had small chips to do electronic imaging. Nowadays it is impossible to get visual views that remotely resemble what you can do with
a few thousand bucks worth of electronic equipment.
That said, here is my last production Mak, aimed at a far distant telephone pole insulator which has a glint of sunshine that shows up as an artificial star. With a 5mm SPL ocular (737x) I see a tight high contrast Airy disc at focus. For
those who don't know what that is - an Airy disc is the smallest resolvable spot from a distant point source that can be seen in any telescope. For a 10" it's approximately 4.5 arc seconds, and is surrounded by a few faint diffraction rings. With a scope like
this I once saw the Sirius Pup in the Florida Keys when the separation was a mere 4 arc seconds.
Business end of the mighty Mak
Let there be light and minimal obstruction
The little Stowaway couldn't help hitching a ride on it's big sister
|
|
|
Beautiful instrument Jim! I agree, just something about viewing the
universe with your eyes.
tony
toggle quoted messageShow quoted text
On 7/31/2020 6:46 PM, thefamily90
Phillips wrote:
Well, I have imaged the Moon
and Planets with mine (earlier version) and could not be
happier with its performance. I may be part of the end of
the era of visual observations and am happy to say I have
spent hours and hours at the eyepiece of telescopes. I can
certainly image more detail on Jupiter with my 10??? than I
can see but the longer I look the more I can see. And, in
my opinion, very few images match the aesthetic beauty of
Jupiter through the eyepiece of my telescope!
Jim Phillips??
WOW! Simply beautiful!
More rare than hens teeth...
????
Pete
On Jul 31, 2020, at 6:17 PM, Roland
Christen via groups.io <chris1011@...>
wrote:
???
Hi Astronuts,
Today I finished the last of the 10"
F14.5 Maks, which will go to whoever is on our list.
This is the last of my hand figured Maks that I plan
to make of this size and focal length in production.
It used to be that there was much more visual
astronomy than there is today, probably because
imaging was hard in the film days and for the first
couple of years when we had small chips to do
electronic imaging. Nowadays it is impossible to get
visual views that remotely resemble what you can do
with a few thousand bucks worth of electronic
equipment.
That said, here is my last
production Mak, aimed at a far distant telephone
pole insulator which has a glint of sunshine that
shows up as an artificial star. With a 5mm SPL
ocular (737x) I see a tight high contrast Airy disc
at focus. For those who don't know what that is - an
Airy disc is the smallest resolvable spot from a
distant point source that can be seen in any
telescope. For a 10" it's approximately 4.5 arc
seconds, and is surrounded by a few faint
diffraction rings. With a scope like this I once saw
the Sirius Pup in the Florida Keys when the
separation was a mere 4 arc seconds.
Business end of the mighty Mak
Let there be light and minimal
obstruction
The little Stowaway couldn't help
hitching a ride on it's big sister
|
|
|
I hit 20 years on the Mark-Cass list earlier this month!
I found a used one many years ago; here's me using it in 2010:
On Fri, Jul 31, 2020 at 5:19 PM Harley Davidson < astrocnc@...> wrote:
Beautiful instrument Jim! I agree, just something about viewing the
universe with your eyes.
tony
On 7/31/2020 6:46 PM, thefamily90
Phillips wrote:
Well, I have imaged the Moon
and Planets with mine (earlier version) and could not be
happier with its performance. I may be part of the end of
the era of visual observations and am happy to say I have
spent hours and hours at the eyepiece of telescopes. I can
certainly image more detail on Jupiter with my 10??? than I
can see but the longer I look the more I can see. And, in
my opinion, very few images match the aesthetic beauty of
Jupiter through the eyepiece of my telescope!
Jim Phillips??
WOW! Simply beautiful!
More rare than hens teeth...
????
Pete
???
Hi Astronuts,
Today I finished the last of the 10"
F14.5 Maks, which will go to whoever is on our list.
This is the last of my hand figured Maks that I plan
to make of this size and focal length in production.
It used to be that there was much more visual
astronomy than there is today, probably because
imaging was hard in the film days and for the first
couple of years when we had small chips to do
electronic imaging. Nowadays it is impossible to get
visual views that remotely resemble what you can do
with a few thousand bucks worth of electronic
equipment.
That said, here is my last
production Mak, aimed at a far distant telephone
pole insulator which has a glint of sunshine that
shows up as an artificial star. With a 5mm SPL
ocular (737x) I see a tight high contrast Airy disc
at focus. For those who don't know what that is - an
Airy disc is the smallest resolvable spot from a
distant point source that can be seen in any
telescope. For a 10" it's approximately 4.5 arc
seconds, and is surrounded by a few faint
diffraction rings. With a scope like this I once saw
the Sirius Pup in the Florida Keys when the
separation was a mere 4 arc seconds.
Business end of the mighty Mak
Let there be light and minimal
obstruction
The little Stowaway couldn't help
hitching a ride on it's big sister
|
|
|
Greatest scope ever from the AP line up. Well done Roland!
On Fri, Jul 31, 2020 at 5:58 PM Ben Lutch < procyon@...> wrote:
I hit 20 years on the Mark-Cass list earlier this month!
I found a used one many years ago; here's me using it in 2010:
On Fri, Jul 31, 2020 at 5:19 PM Harley Davidson < astrocnc@...> wrote:
Beautiful instrument Jim! I agree, just something about viewing the
universe with your eyes.
tony
On 7/31/2020 6:46 PM, thefamily90
Phillips wrote:
Well, I have imaged the Moon
and Planets with mine (earlier version) and could not be
happier with its performance. I may be part of the end of
the era of visual observations and am happy to say I have
spent hours and hours at the eyepiece of telescopes. I can
certainly image more detail on Jupiter with my 10??? than I
can see but the longer I look the more I can see. And, in
my opinion, very few images match the aesthetic beauty of
Jupiter through the eyepiece of my telescope!
Jim Phillips??
WOW! Simply beautiful!
More rare than hens teeth...
????
Pete
???
Hi Astronuts,
Today I finished the last of the 10"
F14.5 Maks, which will go to whoever is on our list.
This is the last of my hand figured Maks that I plan
to make of this size and focal length in production.
It used to be that there was much more visual
astronomy than there is today, probably because
imaging was hard in the film days and for the first
couple of years when we had small chips to do
electronic imaging. Nowadays it is impossible to get
visual views that remotely resemble what you can do
with a few thousand bucks worth of electronic
equipment.
That said, here is my last
production Mak, aimed at a far distant telephone
pole insulator which has a glint of sunshine that
shows up as an artificial star. With a 5mm SPL
ocular (737x) I see a tight high contrast Airy disc
at focus. For those who don't know what that is - an
Airy disc is the smallest resolvable spot from a
distant point source that can be seen in any
telescope. For a 10" it's approximately 4.5 arc
seconds, and is surrounded by a few faint
diffraction rings. With a scope like this I once saw
the Sirius Pup in the Florida Keys when the
separation was a mere 4 arc seconds.
Business end of the mighty Mak
Let there be light and minimal
obstruction
The little Stowaway couldn't help
hitching a ride on it's big sister
|
|
|
Michael Hambrick <mike.hambrick@...>
I have always been more into the imaging
side of the hobby, but I will never forget the view through my 180EDT the
night that Comet Shoemaker-Levy 9 impacted Jupiter. We had the scope out
that night, but I had totally forgotten about the comet. I had just pointed
the scope at Jupiter to give my wife something interesting to look at.
When she looked through the eyepiece she asked what the black specs were
in the clouds. At that point I immediately remembered about the comet.
It was an amazing treat to be able to watch it "live".
Best Regards
Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...
|
|
|
