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Jovian moon observation



 
 
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  #1  
Old June 28th 06, 03:55 AM posted to sci.astro.amateur
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Default Jovian moon observation



Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.

Thanks

Tom R


  #2  
Old June 28th 06, 03:58 AM posted to sci.astro.amateur
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Default Jovian moon observation

Not a moon, a Background STAR.


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"Tom Rauschenbach" wrote in message
news


Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.

Thanks

Tom R




  #3  
Old June 28th 06, 04:12 AM posted to sci.astro.amateur
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Default Jovian moon observation

Tom Rauschenbach wrote:


Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.

Thanks

Tom R



Star -- HD 126766

  #4  
Old June 28th 06, 04:13 AM posted to sci.astro.amateur
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Default Jovian moon observation

"Tom Rauschenbach" wrote in message
news


Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.

Thanks

Tom,

Jupiter has been showing some extra moons of late, but they are all stars
the planet is passing by. The star in your diagram is SAO 158577, HD
126766, with a visual magnitude of 6.7.

Clear skies, Alan


  #5  
Old June 28th 06, 04:17 AM posted to sci.astro.amateur
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Default Jovian moon observation

Tom Rauschenbach wrote:
snip
In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.


Hi Tom,

The '?' isn't a moon of Jupiter, but rather a far more distant star
identified as SAO 158577 at mag 6.651 almost identical in brightness to the
moon Callisto which is the rightmost "." in your ASCII depiction. This star
is located 139.3 ± 5.2 light-years from us (42.7 ± 1.6 parsecs), according
to the Hipparcos catalog. We saw this star while doing a public outreach
event last Saturday night. It confused several casual observers. The
moons, left to right in your diagram, are Ganymede, Europa, Io and Callisto.
They are the only moons of Jupiter visible in a less-than-enormous
telescope. Your binoculars, as good as they are, will only show you four
moons. ;^)

Clear Dark Steady Skies,
Dave Jessie



  #6  
Old June 28th 06, 04:22 AM posted to sci.astro.amateur
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Default Jovian moon observation

Tom Rauschenbach wrote in
news


Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were
the Galilean Moons. The fifth was above that plane, on the right hand
side (remember that my image was not reversed in either way) about half
way (or centered )between the two moons in the plane and about half that
distance above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify.
The time was around 9:30 EDT.


HD126766 SAO158577 SD-12 4055
Visual Magnitude: 6.64

Klazmon



Thanks

Tom R



  #7  
Old June 28th 06, 04:36 AM posted to sci.astro.amateur
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Default Jovian moon observation

On Tue, 27 Jun 2006 22:55:50 -0400, Tom Rauschenbach
wrote:

Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.


Moon 5 was a field star (HD126766). The smaller moons of Jupiter are
far beyond the grasp of 25x100 binoculars. The next look you take
will show you that the "moon" is not keeping up with Jupiter.

  #8  
Old June 28th 06, 05:35 AM posted to sci.astro.amateur
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Default Jovian moon observation

Thats no moon thats a space station!!!!!


:P

"Tom Rauschenbach" wrote in message
news


Tonight (June 27, 2006) I saw five moons of Jupiter through a pair of
25X100 binos. There were four, in a single plane, which I assume were the
Galilean Moons. The fifth was above that plane, on the right hand side
(remember that my image was not reversed in either way) about half way (or
centered )between the two moons in the plane and about half that distance
above the plane.

Is there an ephemeris of some sort that will help confirm what I saw and
identify that moon ?

In ASCII art I saw


?
. . J . .


where J is the plante's disk, the full stops are the four Galilean moons
(I think) and the question mark is the object I'm trying to identify. The
time was around 9:30 EDT.

Thanks

Tom R




  #9  
Old June 28th 06, 03:45 PM posted to sci.astro.amateur
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Default Jovian moon observation


Many thanks for very informative replies. For those not quite in the know,
the SAO numbers people mentioned refer to the Smithsonian Astrophysical
Observatory catalog. The HD numbers refer to the Henry Draper catalog.

I have not been able to find information on Klazmon's SD-12 4055
reference, nor any way to know which moon is which at any arbitrary time.


  #10  
Old June 28th 06, 04:12 PM posted to sci.astro.amateur
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Default Jovian moon observation

Tom Rauschenbach wrote in message:

I have not been able to find information on Klazmon's SD-12 4055
reference, nor any way to know which moon is which at any arbitrary time.


Hi Tom,

http://www.cpac.org.uk/

Get "The Planets (Version 2.02)" and you'll have a fast-loading program to
answer your Jovian moon and events questions.

Dave Jessie


 




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