nytecam
Post Laureate
Reged: 08/20/05
Posts: 4814
Loc: London UK
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It's awhile since I've looked at this remote globular in Del but last night I had it in the scope as a faint fuzzy and wondered what other observers make of it - can it be resolved into stars and with what aperture
-------------------- 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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stevecoe
   
Reged: 04/24/04
Posts: 2129
Loc: Arizona, USA
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I have only resolved it in the largest personal scope I have ever owned: 18" f/6 at 210X, I saw 3 stars superimposed on the surface of NGC 7006. One was held steady, the other two appeared and disappeared with the seeing. This was on a night I rated 8/10 for transparency and 7/10 for seeing.
So, it takes the combination of a good night and a pretty good sized scope to resolve even a few stars in this globular. I tried it twice in my 13 inch and never got a star to appear.
Have fun; Steve Coe
-------------------- 150mm 6" f/8 Celestron Refractor on Sirius Mount
80mmED 3" f/7.5 Orion Refractor
Author "Deep Sky Observing" Springer-Verlag
Author "Nebulae and How to Observe Them" Springer
New Canon Xt astrocamera with Hutech modification
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MessierScott
super member
Reged: 06/18/07
Posts: 188
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Back in September 2004 at the ICStars Star Party with the 20-inch on a better-than-average seeing night at 209x:
"A very tiny, little cluster. Very unresolved, but overall quite bright. A fairly heavily concentrated core area that extends quite a ways out into the cluster before breaking apart rapidly to the edges. Core is so dense it gives a mottled appearance. A few stars are resolved as individuals at the very edges of the cluster. The small faint round galaxy PGC65893 lies on the very NW edge of the field of view (very slight brightening at the core)."
Down to 6 Milky Way globulars yet to view from the Kansas City location (hopefully less after this coming weekend)!
-------------------- Scott Kranz
20-inch f/4.3 Starmaster w/Zambuto mirror, Feathertouch focuser, GO TO & tracking
7-inch Starmaster
H-alpha Coronado PST
Denkmeier II binoviewers w/24mm Panoptics
16x80 binos
Astronomical Society of Kansas City
Astronomical League Messier, Meteor, Sunspotter, & Asteroid Observing Programs Coordinator
ASKC Dark Sky Site
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star drop
Guilty as Charged
   
Reged: 02/02/08
Posts: 3247
Loc: Cattaraugus Co., NY
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Quote:
"A very tiny, little cluster. Very unresolved, but overall quite bright. A fairly heavily concentrated core area that extends quite a ways out into the cluster before breaking apart rapidly to the edges. Core is so dense it gives a mottled appearance. A few stars are resolved as individuals at the very edges of the cluster.
Observing with a 25" in a red zone with poorer seeing conditions the out lying stars give a pentagonal appearance to the globular. I spent several hours watching it one night in hopes of obtaining a better view. Now that I am in a green zone I should give it another look. Now I just have to wait for good seeing conditions.
-------------------- Ted
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Mr Q
sage
Reged: 02/25/08
Posts: 351
Loc: N Central New Mexico
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The best views of it in my 10" newt showed only a hint of mottled texture on a very good seeing night, with averted vision. Mr Q
-------------------- What goes around, comes around, eventually.
Meade DS-10(10" newt)
10x50, 10x70 binos
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RRaubach
AstroCowboy
   
Reged: 01/26/05
Posts: 2173
Loc: Douglas (Converse County),WY
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I have observed n7006 in several scopes, the largest being the Discovery 12.5 ", and not a hint of resolution. In smaller scopes, it is only minimally "globular-looking". I first identified it as a globular in my now dearly departed TMB 175 using a Televue Panoptic 27. FWIW, Steve O'Meara has reported resolution in a 31" reflector.
-------------------- Rodger
Meade SN-10 (UHTC) on Tak EM-200 mount/Antares rotating rings. Moonlite focuser.
Parallax 14.5" Newtonian on HD 200 mount (arriving soon!) w/ conical Royce mirror.
TMB 203 f/7 APO refractor on Tak NJP-160 mount.
Discovery 12.5" PDHQ
Schneider 18x80 "Flakfernrohr" binoculars/tripod mounted. Canon 15x50 IS binoculars
Unihedron Sky Quality Meter
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sgottlieb
sage
Reged: 07/22/07
Posts: 243
Loc: SF Bay area
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The brightest stars of NGC 7006 are roughly V = 15.6, but to resolve (beyond a few stars in the halo) in my 18" requires very good seeing. Here's my last observation...
This small globular was viewed at 435x and 565x and it appeared very mottled and lively in excellent seeing. Two or three very faint stars were visible pretty steadily and a number of extremely faint mag 16 stars appeared to sharpen up and momentarily sparkle, particularly in the 1.5' to 2' halo. Perhaps a dozen stars total sparkled or popped in and out of view.
BTW, there's an interacting galaxy, UGC 11672 just 43' east. It's also a nice challenge to try and resolve the components!
-------------------- Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space - New article on MASH planetaries
7500+ NGC/IC Visual Descriptions
NGC/IC Project
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MessierScott
super member
Reged: 06/18/07
Posts: 188
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Quote:
BTW, there's an interacting galaxy, UGC 11672 just 43' east. It's also a nice challenge to try and resolve the components!
Cool! I'll have to check that one out this weekend. I seen the PGC galaxy to the immediate NW but missed that one.
-------------------- Scott Kranz
20-inch f/4.3 Starmaster w/Zambuto mirror, Feathertouch focuser, GO TO & tracking
7-inch Starmaster
H-alpha Coronado PST
Denkmeier II binoviewers w/24mm Panoptics
16x80 binos
Astronomical Society of Kansas City
Astronomical League Messier, Meteor, Sunspotter, & Asteroid Observing Programs Coordinator
ASKC Dark Sky Site
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Achernar
Post Laureate
   
Reged: 02/25/06
Posts: 3721
Loc: Alabama, USA
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I've looked at it in telescopes as large as a 17.5-inch Dob, and it still appeared as a fuzzy blob. The stars are incredibly faint due to NGC-7006's distance of some 185,000 light years from us and 210,000 light years from the galactic center. To resolve this cluster requires very dark skies and probably a 20-inch or bigger telescope unless you have very good vision.
Taras
-------------------- 10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
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sgottlieb
sage
Reged: 07/22/07
Posts: 243
Loc: SF Bay area
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Quote:
To resolve this cluster requires very dark skies and probably a 20-inch or bigger telescope unless you have very good vision.
I'd emphasize good seeing and high power (500x or greater) as well.
-------------------- Steve Gottlieb
18" f/4.3 Starmaster
Adventures In Deep Space - New article on MASH planetaries
7500+ NGC/IC Visual Descriptions
NGC/IC Project
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Achernar
Post Laureate
   
Reged: 02/25/06
Posts: 3721
Loc: Alabama, USA
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For most folks, good seeing is hard to come by. Sometimes though I see nights steady enough to push my 10-inch that far without the image mushing out.
Taras
-------------------- 10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
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Starman1
Vendor - Scope City
   
Reged: 06/24/03
Posts: 10957
Loc: Los Angeles
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from my 8":
Sml,faint,no res.,somewhat condensed core,slightly oval,
from my 12.5":
small,mod.faint,smattering of v.faint stars across ghostly core.Appears slightly flattened with direct vision, but round with averted. A little smaller than N2419 in LYN, but similar resolution/lack therof.
I haven't looked through a larger scope at this object, but I guess I must have looked on a very transparent night to have seen any stars at all.
Don
-------------------- Don Pensack
12.5" Truss Dob, 5" Maksutov
Sustaining Lifetime IDA member, TeleVue junkie
Edited by Starman1 (06/27/08 12:48 AM)
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4814
Loc: London UK
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Thanks everyone for their excellent reports - it seems this GC is quite a challege to resolve much like 2419 in Lynx - keep up the good works
-------------------- 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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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4814
Loc: London UK
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as a follow-up to my recent visual ob of 7006 I took a pic last night on CN thread here Megastar quotes [in vis mags] gross 10.6; brightest stars 15.6; ave [HB] 18.8. The two stars immediately below the GC at m[v]13.7
-------------------- 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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HaleBopper
sage
Reged: 01/14/08
Posts: 259
Loc: Great White North
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I caught a couple of glimpses of NGC 7006 last Aug from my light polluted backyard with an 8" SCT. I used a 21 mm Orion Stratus.
It was a very faint, ghostly round, and greyish object. Not very exciting to look at, but you need to have an appreciation of what you're looking at. I was quite happy to have been able to catch it! Needless to say, I was unable to resolve any of the stars in NGC 7006, (as you would expect from an 8" scope in LP skies).
-------------------- 8" SCT CG5 mount
Canon Digital Rebel 400
Kodak Easyshare 2.0 Megapixels
5, 8, 13, 17, 21, 24mm Orion Stratus
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David Knisely
Postmaster
   
Reged: 04/19/04
Posts: 6782
Loc: Beatrice, Nebraska
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I observed NGC 7006 last night from my driveway (ZLM 5.6 or so) in my NexStar 9.25 inch SCT. I saw no firm hints of any resolution, although there were quite a few stars near it and maybe one or two close to the edges. It is a nice little faint "puff" with some central concentration, and was fairly easy to see but not much in the resolution end. This was right after I hit the *very* nice globular NGC 6712, so I might have been just a bit "jaded" by the previous object. NGC 6712 was a pleasant surprise after hitting a number of fainter globulars that night, although for a globular, it is a little weird (odd shape and distribution of stars). Clear skies to you.
-------------------- David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4814
Loc: London UK
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Quote:
I observed NGC 7006 last night from my driveway (ZLM 5.6 or so) in my NexStar 9.25 inch SCT.....
Thanks David for your observation - did you observe GC NGC 6934 in Del Sp 7006? I've posted my pic here and seemed to notice the central condensation split in two vertically as if partically obscured - have you noticed this
-------------------- 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: 6782
Loc: Beatrice, Nebraska
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Quote:
Quote:
I observed NGC 7006 last night from my driveway (ZLM 5.6 or so) in my NexStar 9.25 inch SCT.....
Thanks David for your observation - did you observe GC NGC 6934 in Del Sp 7006? I've posted my pic here and seemed to notice the central condensation split in two vertically as if partically obscured - have you noticed this
I haven't observed this one in a while, but in my old Herschel 400 log, at 220x in my old 8 inch f/7 Newtonian, I describe it as "clumpy with hints of resolution". I may have to go back and see what the NexStar shows. Clear skies to you.
-------------------- David W. Knisely
Hyde Memorial Observatory
http://www.hydeobservatory.info
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gripweed44
scholastic sledgehammer
   
Reged: 02/12/05
Posts: 905
Loc: PDX
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I observed it last summer from Oregon Star party
Real small, bright core - diffuse edges
It was a ghost of a object. But in The sky its the only thing around. I believe its one of the furthest Globs from here.
-------------------- John
Omega Centauri is the finest Globular I have seen with my own eyes.
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