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Observing >> Deep Sky Observing

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GlennLeDrew
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Reged: 06/18/08

Loc: Ottawa, Ontario, Canada
Most over-rated DSO?
      #5974812 - 07/16/13 06:58 PM

Another thread here deals with under-rated DSOs, which are nice or interesting objects not deemed to receive attention or press commensurate with their 'niceness.'

What about the other end of the spectrum? There are objects which by themselves are nothing to write home about. But due to proximity to some other well known and oft observed object, receive attention out of all proportion to their 'puniness.'

I'll toss in two; the galaxies close to M57 and M13, they being IC 1295 and NGC 6207, respectively.


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kfiscus
Carpal Tunnel
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Reged: 07/09/12

Loc: Albert Lea, MN, USA
Re: Most over-rated DSO? new [Re: GlennLeDrew]
      #5974900 - 07/16/13 07:53 PM

Cluster NGC 6802 at the right tip of the Coat Hanger (if viewed with hanger 'correct side up'). The pair provides a neat depth-of-field.

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Nick Anderson
super member


Reged: 04/21/13

Loc: Virginia, USA
Re: Most over-rated DSO? new [Re: GlennLeDrew]
      #5975066 - 07/16/13 09:40 PM

M40, enough said there.

-Nick Anderson


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David Knisely
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Reged: 04/19/04

Loc: southeastern Nebraska
Re: Most over-rated DSO? new [Re: kfiscus]
      #5975105 - 07/16/13 10:03 PM

Quote:

Cluster NGC 6802 at the right tip of the Coat Hanger (if viewed with hanger 'correct side up'). The pair provides a neat depth-of-field.




How in the world can this one be over-rated? It is a nice cluster for moderate to large telescopes, especially at higher powers. If anything, it is underrated, as it has around 50 stars and shows two or three sub-clusters within its borders. It should be better-known, given that it sits at the edge of one of the best known asterisms in the northern sky. Clear skies to you.


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Nick Anderson
super member


Reged: 04/21/13

Loc: Virginia, USA
Re: Most over-rated DSO? new [Re: David Knisely]
      #5975175 - 07/16/13 10:46 PM

After re-reading his post, I think it was meant for the "under-rated" forum. I agree here: in my opinion NGC 6802 was one of the best open clusters of the Herschel 400 list!

-Nick Anderson


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Jon Isaacs
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Re: Most over-rated DSO? new [Re: David Knisely]
      #5975184 - 07/16/13 10:50 PM

In some sense, all DSOs are underrated since only a very small portion of the world's population ever gets a chance to enjoy them.

But in terms of the general public, I have to think the Crab Nebula is one of the best known but underwhelming at the eyepiece in comparison to other well know DSOs like Andromeda, the Pleiades, the Great Nebula in Orion, the Hercules Cluster... First timers and non observers find these can be quite awesome in most any scope.. The Crab Nebula generally is more of a "that's it?"

Jon


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ggalilei
scholastic sledgehammer
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Reged: 09/01/11

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Re: Most over-rated DSO? new [Re: Jon Isaacs]
      #5975221 - 07/16/13 11:15 PM

True, M1 is generally underwhelming, but isn't it the easiest visible SNR? (and it has a pulsar at its center!) With that kind of brain vision, it becomes "overwhelming."

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russell23
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Reged: 05/31/09

Loc: Upstate NY
Re: Most over-rated DSO? new [Re: ggalilei]
      #5975247 - 07/16/13 11:33 PM

I think these questions are tough because it depends upon the aperture of the scope. Still for me the overrated object is M11 no matter the aperture. I might be the only person ever to think that but it is my feelings about that cluster. I check it once each summer just to confirm that I still won't be spending time on it. Last time I mentioned this people wanted to understand why. I can't explain why I just don't enjoy looking at M-11. Sorry!

Dave


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kfiscus
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Reged: 07/09/12

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Re: Most over-rated DSO? new [Re: David Knisely]
      #5975323 - 07/17/13 12:34 AM

I nominated it by following Drew's (OP) intro examples of objects overshadowed by famous neighbors. I really like 6802. It's more like overLOOKED than overrated.

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kfiscus
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Re: Most over-rated DSO? new [Re: Nick Anderson]
      #5975327 - 07/17/13 12:36 AM

+1. I've seen "M-40" used as a verb somewhere in a CN forum to describe the act of a close double fooling the eye into seeing things that aren't really there.

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David Knisely
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Re: Most over-rated DSO? new [Re: Jon Isaacs]
      #5975398 - 07/17/13 02:17 AM

Quote:

In some sense, all DSOs are underrated since only a very small portion of the world's population ever gets a chance to enjoy them.

But in terms of the general public, I have to think the Crab Nebula is one of the best known but underwhelming at the eyepiece in comparison to other well know DSOs like Andromeda, the Pleiades, the Great Nebula in Orion, the Hercules Cluster... First timers and non observers find these can be quite awesome in most any scope.. The Crab Nebula generally is more of a "that's it?"

Jon




Well, the Crab is certainly better than the Bubble Nebula (NGC 7635). All that is usually seen is a small faint oval glow around a star, with only the closest parts of the arcs of the "bubble" barely hinted at in moderate to large apertures (even when using a nebula filter). At a real dark sky site with a narrow-band filter, in a 10 inch, there can be a little more fainter nebulosity that is seen, but not a lot. I can at least see the Crab in a 60mm refractor from my 5th magnitude back yard (and it is notably larger than the brightest visual portion of NGC 7635) but the "Bubble"?? Nope. I consider the Bubble to be over-rated. Clear skies to you.


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Tony Flanders
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Re: Most over-rated DSO? new [Re: Nick Anderson]
      #5975497 - 07/17/13 06:38 AM

Quote:

M40, enough said there.




Yeah, M40 might just be the champ when you take the ratio of its fame to its inherent virtues. It's a perfect OK wide, easy, moderately faint double star, but there are probably at least a thousand equally attractive wide, easy, moderately faint doubles. Of them, M40 is by far the best known.

I'm glad that the Messier list includes M40 -- it gives it more variety. But it's sheer chance, and a very small one, that this particular wide double happened to be noticed by Messier.


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azure1961p
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Re: Most over-rated DSO? new [Re: Tony Flanders]
      #5975527 - 07/17/13 07:53 AM

The *Blinking Planetary* in Cygnus since 1. It does no such thing, 2. Any number of averted vision sensitive deepsky objects will appear to vanish and reappear given proper or improper attention.
Its just a nice fairly bright planetary with an easy central star. That's all.

Pete

Edited by azure1961p (07/17/13 07:54 AM)


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Gil V
professor emeritus


Reged: 09/09/12

Re: Most over-rated DSO? new [Re: azure1961p]
      #5975720 - 07/17/13 10:31 AM

Agreement on the non-blinking planetary. I wasn't sure I had it because no blinking. Maybe in a smaller scope?

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EJN
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Reged: 11/01/05

Loc: 53 miles west of Venus
Re: Most over-rated DSO? new [Re: azure1961p]
      #5975827 - 07/17/13 11:41 AM

Quote:

The *Blinking Planetary* in Cygnus since 1. It does no such thing, 2. Any number of averted vision sensitive deepsky objects will appear to vanish and reappear given proper or improper attention.
Its just a nice fairly bright planetary with an easy central star. That's all.




I will strongly disagree with this statement. While other planetary nebula
show the "blinking" effect in my 8" scope, it is far more pronounced
and obvious with NGC 6826 than any other I have seen.

As for over-rated DSOs,

1) M40
2) M73
3) M29


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Tom Polakis
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Re: Most over-rated DSO? new [Re: GlennLeDrew]
      #5975916 - 07/17/13 12:38 PM

The one that comes instantly to my mind is the Horsehead Nebula. So much effort is expended seeing it, and the view is bland even with a large telescope and a Hydrogen-Beta filter at a dark site.

My two criteria for what makes an object worthwhile to spend time on are either aesthetic beauty or astrophysical interest. Many of our favorite objects like M51 and M42 have both going for them. I can't get enough of the Veil Nebula, which is exceedingly beautiful, but of little astrophysical interest. The Crab Nebula currently has been written about in 4328 papers, so it's a worthy target despite it's faintness. Then there's the Horsehead Nebula, whose fascination is apparently that it looks cool in images.

Tom


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GlennLeDrew
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Re: Most over-rated DSO? new [Re: Tom Polakis]
      #5976033 - 07/17/13 01:45 PM

Tom,
I'm with you! The verbiage pounded out here about the Horsehead year after year (even to the point of having a post about the thing stickied), goes almost beyond the pale. There are innumerable dark nebulae vastly easier to see. But I suppose it's really the challenge it poses; to see it might be perceived as graduating to the upper echelon of visual observers. Not that there aren't numerous tougher objects out there to earn bragging rights on.


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Nick Anderson
super member


Reged: 04/21/13

Loc: Virginia, USA
Re: Most over-rated DSO? new [Re: EJN]
      #5976187 - 07/17/13 03:15 PM

Quote:

Quote:

The *Blinking Planetary* in Cygnus since 1. It does no such thing, 2. Any number of averted vision sensitive deepsky objects will appear to vanish and reappear given proper or improper attention.
Its just a nice fairly bright planetary with an easy central star. That's all.




I will strongly disagree with this statement. While other planetary nebula
show show the "blinking" effect in my 8" scope, it is far more pronounced
and obvious with NGC 6826 than any other I have seen.




As a fellow 8-inch telescope owner, I agree: the blinking effect is very obvious. But add a lot of aperture, then it's doubtful the nebulosity will "blink" anymore.

-Nick Anderson


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acochran
professor emeritus


Reged: 06/19/08

Loc: So. CA
Re: Most over-rated DSO? new [Re: Nick Anderson]
      #5976326 - 07/17/13 04:32 PM

I find M 31 to be disappointing. Looked at it through a 24" Dob two weekends ago, looked the same as with my 16" Dob, just bigger.
Andy


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kfiscus
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Reged: 07/09/12

Loc: Albert Lea, MN, USA
Re: Most over-rated DSO? new [Re: acochran]
      #5976397 - 07/17/13 05:06 PM

This type of comment will likely get you and me both kicked off CN- but I agree. I get a bigger kick out of 32 & 110.

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