#1
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trappist-1
Does anyone have corodinates for this system please ?
cheers, |
#2
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trappist-1
On Mon, 27 Feb 2017 08:49:28 GMT, (Phil)
wrote: Does anyone have corodinates for this system please ? Note its catalog name, 2MASS J23062928-0502285. That provides the coordinates, RA 23h 6m 29.28s Dec -5° 2' 28.5" (putting it in Aquarius). With a visual magnitude near 19, it's an easy imaging target, but not possible to see visually. |
#3
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trappist-1
On Monday, February 27, 2017 at 6:42:06 AM UTC-8, Chris L Peterson wrote:
On Mon, 27 Feb 2017 08:49:28 GMT, (Phil) wrote: Does anyone have corodinates for this system please ? Note its catalog name, 2MASS J23062928-0502285. That provides the coordinates, RA 23h 6m 29.28s Dec -5° 2' 28.5" (putting it in Aquarius). With a visual magnitude near 19, it's an easy imaging target, but not possible to see visually. One of the great challenges ahead is identifying which stars exist closer to the galactic center than we do,which exist further out or above and below our solar system. It will not happen as long as RA/Dec is used to explain the Earth's motion via a rotating celestial sphere - https://www.youtube.com/watch?v=BYy0EQBnqHI http://planetary-science.org/wp-cont.../06/sphere.jpg My goodness, limiting the stellar Universe to the distance of Polaris bounded as a celestial sphere is rotten and more so in that there are these guys who are oblivious to the monstrosity they so willingly promote. |
#4
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trappist-1
On Mon, 27 Feb 2017 07:42:07 -0700, Chris L Peterson
wrote: With a visual magnitude near 19, it's an easy imaging target, but not possible to see visually. Not even with a 2.5 meter or larger telescope? Yes, interested amateurs can rent the Hoover telescope. |
#5
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trappist-1
On Tue, 28 Feb 2017 16:33:21 +0100, Paul Schlyter
wrote: On Mon, 27 Feb 2017 07:42:07 -0700, Chris L Peterson wrote: With a visual magnitude near 19, it's an easy imaging target, but not possible to see visually. Not even with a 2.5 meter or larger telescope? Yes, interested amateurs can rent the Hoover telescope. The Hooker telescope? Yes, I've observed through it visually. However, even with a newly re-aluminized 2.5 meter telescope, magnitude 6 skies, a large pupil, high power, and good seeing it's doubtful even an expert observer would see a mag 19 star. But not impossible. Still, short of the rare opportunity to take advantage of a huge aperture instrument under ideal conditions, I think it's safe to say this object is out of visual reach of amateur astronomers (even if it's easily imaged). |
#6
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trappist-1
Chris L Peterson wrote:
On Tue, 28 Feb 2017 16:33:21 +0100, Paul Schlyter wrote: On Mon, 27 Feb 2017 07:42:07 -0700, Chris L Peterson wrote: With a visual magnitude near 19, it's an easy imaging target, but not possible to see visually. Not even with a 2.5 meter or larger telescope? Yes, interested amateurs can rent the Hoover telescope. The Hooker telescope? Yes, I've observed through it visually. However, even with a newly re-aluminized 2.5 meter telescope, magnitude 6 skies, a large pupil, high power, and good seeing it's doubtful even an expert observer would see a mag 19 star. But not impossible. Still, short of the rare opportunity to take advantage of a huge aperture instrument under ideal conditions, I think it's safe to say this object is out of visual reach of amateur astronomers (even if it's easily imaged). Indeed. Pluto was a tough object for me under 6th magnitude skies using a 12.5 inch newtonian. Had to verify it amongst the star field over the course of several days. |
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