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F.Meiresonne
Carpal Tunnel
   
Reged: 12/22/03
Posts: 2959
Loc: Eeklo,Belgium
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Quote:
Very nice. So, with those conditions did any of you see IC 1296?
Bill
Nope, one of my fellow observers mentioned it at the time we were busy with M57, but he could not see it. He's very experienced but anyhow we could not spot it. Seeing was good that evening and that was probably the most important that evening for spotting the central star I am just come back from the Provence in France where i enjoyed one night with very good seeing(never saw the GRS on Jupiter so good...), unfortunately, i could not observe there with the 18 incher, does not fit in my car together with my family...
-------------------- Freddy Meiresonne
Obsession 18 inch #1638
Orion Optics 8 inch F/4.5 -1/8 wave optics -Vixen GP-E
20x80 Helios Stellar Binos
10x60 Helios Quantum 4(= Obie Mariner)
10x50 Helios Nature sport plus
8x40 Helios Nature sport plus
Eyepieces in use :Pan 35,24,19, N13T6, Pentax 10 XW, N9T6, Ultrascopic 7.5, TV2, baader ortho 12.5 and 9 mm
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Van Robinson
journeyman
Reged: 04/30/08
Posts: 6
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Both stars in M57 visible with direct vision in 82" at McDonald Observatory at 1297X. IC 1296 visible in separate fov.
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Rick Woods
Post Laureate
   
Reged: 01/27/05
Posts: 4319
Loc: Inner Solar System
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I'm sure I've seen it a couple of times. What I saw was more like a faint denser spot of illumination within the central haze. It wasn't a hard stellar point, more like a small faint blob. Is that how it looked to you guys? On one occasion I did seem to see a sharp twinkle in the center; but the other times, it's been the blob. It fades in and out.
-------------------- - Rick
14" LX200GPS
8" Meade 826C
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Rick Woods
Post Laureate
   
Reged: 01/27/05
Posts: 4319
Loc: Inner Solar System
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Quote:
Both stars in M57 visible with direct vision in 82" at McDonald Observatory at 1297X. IC 1296 visible in separate fov.
Show-off!
-------------------- - Rick
14" LX200GPS
8" Meade 826C
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4824
Loc: London UK
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Congrats to all the central star spotters I've only see it with Lowell Ob 1m where it was really bright It however raises a query - as the star is very blue [I think] is its detection, with modest scopes, age dependent through yellowing of the cornea eg any seniors seeing it?
-------------------- Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page
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David Knisely
Postmaster
   
Reged: 04/19/04
Posts: 6787
Loc: Beatrice, Nebraska
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Quote:
Congrats to all the central star spotters I've only see it with Lowell Ob 1m where it was really bright It however raises a query - as the star is very blue [I think] is its detection, with modest scopes, age dependent through yellowing of the cornea eg any seniors seeing it?
There are many people in their 60's and 70's who have seen it. Again, the main factors (other than just having enough aperture to reach the magnitude needed) are using high power (over 300x) and waiting for great seeing. If the seeing isn't rock-solid, the central star usually won't be visible no matter how big the scope is. Clear skies to you.
-------------------- David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
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Silicon Owl
scholastic sledgehammer
   
Reged: 11/25/05
Posts: 944
Loc: Waimea, Hawaii
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I have never seen it in my 18" despite a few attempts (using high mag) though a young friend of mine (age 13 at the time) claimed to see it easily, he was a pretty good observer and I believe him. The one time I have seen it, and the second star, was with a 60" scope atop Mt. Lemmon belonging to the Steward Observatory, University of Arizona.
Maybe something to that age bias.
-------------------- Andrew Cooper
Personal Website and CN Gallery
Handmade 18" Dob / NS11GPS / 6" RFT / 90mm APO / TV-76 ...and a twin 10m
"I have loved the stars too fondly to be fearful of the night." --Sarah Williams
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Lamb0
professor emeritus
   
Reged: 07/25/07
Posts: 668
Loc: Fairbury, Nebraska
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I've seen it in a 20" f/5 @ 318X using the 8mm Ethos. In the same scope, my 5-8mm Speers-WALER required ~6.7mm (about 382X), although the central star was never seen with 5mm and 8mm Hyperions. In a different scope, also a 20" f/5, the 5-8 SW performed similarly, a 6.4mm Orthoscopic, as well as a 12mm (unknown brand) and 15mm TeleVue Plossl succeeded with a 2X TeleVue Barlow. Contrast matters for this task! Dig out those Orthos, and TeleVue Plossls and Barlows.
-------------------- John "Have eyepiece - will travel!"
8" f/5 Dob w/2.14" sec in a 12" alum tube 'The Mortar' - w/PCorr 2° TFoV @ 36.5X ~70% illum *NICE*
Typical eyepieces: 32 Burg, 24 Pan, 20T5, 5-8 SW, Others ALL 2": Pcorr, 2X PwrMt, Ast H-b, Lum UHC + OIII
60mm $50 Walmart Special in training - aka "Backpack Observatory"
Minolta Activa 12x50 , Steiner 15X80
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