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Observing >> Deep Sky Observing

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azure1961p
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Small Summer Planetaries
      #5955680 - 07/05/13 08:10 AM

Hi Folks,

I've drafted up a challenging list of planetaries for this summer with Sasa's help. Some we have seen, others have not yet been seen. Some are easy and done are very very challenging. I've tried to keep the magnitudes maxing around 12.5v so with a UHC, OIII or Hbeta they can still be had from less than optimal sky's.

If anyone wants to add to the list it'd be great.

List: Small Bright planetarys Summer
NGC 6891 Planetary Nebula in Delphinus
NGC 7027 Planetary Nebula in Cygnus
Blue Flash Nebula - NGC 6905 Planetary Nebula in Delphinus
Blinking Planetary Nebula - NGC 6826 Planetary Nebula in Cygnus
NGC 6210 Planetary Nebula in Hercules
IC 4593 Planetary Nebula in Hercules
Little Gem Nebula - NGC 6818 Planetary Nebula in Sagittarius
Saturn Nebula - NGC 7009 Planetary Nebula in Aquarius
NGC 6572 Planetary Nebula in Ophiuchus
NGC 6886 Planetary Nebula in Sagitta
Vyssotsky 1-2 Planetary Nebula in Hercules
Henize 2-327 planetary in Sagitarius
ARO 11 Campbells Hydrogen Star, Planetary Nebula in Cygnus
UGC 11668 Egg Nebula listed as Galaxy in Cygnus in Sky Safari
Footprint Nebula - M 1-92 Bright Nebula in Cygnus
Humason 1-2 Planetary Nebula in Cygnus
NGC 6778 Planetary Nebula in Aquila
NGC 6884 Planetary Nebula in Cygnus
NGC 7026 Planetary Nebula in Cygnus
IC 3568 Planetary Nebula in Camelopardalis
Box Nebula - NGC 6309 Planetary Nebula in Ophiuchus
NGC 6369 Planetary Nebula in Ophiuchus
Phantom Streak - NGC 6741 Planetary Nebula in Aquila
NGC 6803 Planetary Nebula in Aquila
IC 5117 Planetary Nebula in Cygnus
IC 5217 Planetary Nebula in Lacerta
PK38+12.1 planetary in Ophiuchus 12.5v to 13.5v depending on source
IC1295 Scutum
NGC 6781 Aquila
NGC 6790. Aquila
NGC 6543 Draco
NGC40 Cepheus
NGC7139 Cepheus


Pete

Edited by azure1961p (07/05/13 05:52 PM)


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Sasa
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5955711 - 07/05/13 08:46 AM

Thanks Pete for the list. There are definitely names I did not hear about before and it is a good inspiration. I'm sure, people can add few more candidates.

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sgottlieb
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Reged: 07/22/07

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Re: Challenging Summer Planetaries new [Re: Sasa]
      #5955955 - 07/05/13 11:32 AM

Excellent list, Pete. Listed planetary magnitudes can be all over the map, but Henize 2-327 is probably closer to mag 14.5, based on a visual estimate I made back in 1987 in an 18" (described as "very faint" in that scope).

This planetary was first discovered by Minkowski in 1947, so the discovery name is M 2-24. The position is 18 02 02.9 -34 27 47, if others want to take a look and compare. I'd suggest blinking with an OIII or narrowband filter as the size is quite small.


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azure1961p
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Re: Challenging Summer Planetaries new [Re: sgottlieb]
      #5956010 - 07/05/13 12:13 PM

Thanks, guys. Steve thanks for the clarifier. My stellar faint mag limit is 15 but the sky's I use now are nearly a full mag brighter so my Minkowski choice may have been rather optimistic. I doubt ill see all but I feel good about a lot. Thanks for your comments!

Pete


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Dave MitskyModerator
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5956063 - 07/05/13 01:00 PM

You may want to add NGC 6781 and NGC 6804 in Aquila and IC 1295 in Scutum to your list.

Dave Mitsky


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azure1961p
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Re: Challenging Summer Planetaries new [Re: Dave Mitsky]
      #5956082 - 07/05/13 01:13 PM

Done! Thank you David. I've seen those two NGCs and they are nice but not the IC just yet. I'm looking forward to it.

Pete


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KidOrion
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5956099 - 07/05/13 01:24 PM

NGC 7139 in Cepheus is somewhat tricky (NGC 40 in Cepheus is much easier). NGC 6337 (Scorpius), which was an Object of the Week over at Deep Sky Forum, is another cool one. And don't forget the Bug (NGC 6302) while you're there!

IC 1295 is interesting; I've seen it from the Cincinnati suburbs in an 8" SCT with a UHC filter, yet some reports consider it difficult with similar gear in rural skies.

Edited by KidOrion (07/05/13 01:25 PM)


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aatt
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5956103 - 07/05/13 01:29 PM

I am working on this list right now. Question-in Scutum I think it is IC 1298 right next (or in) globular NCG6712. I had a broad band on and cranked it to 190x. I could not pick that thing out. I stared and swatted at mosquitoes and searched and stared and swatted at mosquitoes to no avail. Is this one that requires even higher mag or must have an OIII? Any tips?

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eps0mu0
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Re: Challenging Summer Planetaries new [Re: aatt]
      #5956219 - 07/05/13 03:07 PM

Pete,
In a reply to a recent post of mine, you mentioned the bright planetary NGC6543 in Draco, the "Cat's Eye Nebula". It is an easy one, as I was able to pick it up yesterday. It is well placed for summer viewing.
Regards,
JCF


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azure1961p
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Re: Challenging Summer Planetaries new [Re: eps0mu0]
      #5956268 - 07/05/13 03:41 PM

Son of a gun, I omitted 6543!!! And I had it in my head to put it on the list!

Editing.

Aatt: I looked on Safari and the magnitude is omitted - not a good sign!!! I'm thinking it may be incredibly small and very very faint. More over Safari lists it as a multiple star, not a planetary. Hers a link with a graphic - I think its non nebulous. However Burnhams sais: 14th magnitude 17 mag central star, 80x60". Hmmm.
http://www.darkerview.com/scripts/query.php?IC1298

Kid Orion: NGC40 and NGC7139 are great. The other is farther south than I look for seeing reasons but its a nice call.
Pete

Edited by azure1961p (07/05/13 04:58 PM)


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Dave MitskyModerator
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Re: Challenging Summer Planetaries new [Re: aatt]
      #5956349 - 07/05/13 04:33 PM

Quote:

I am working on this list right now. Question-in Scutum I think it is IC 1298 right next (or in) globular NCG6712. I had a broad band on and cranked it to 190x. I could not pick that thing out. I stared and swatted at mosquitoes and searched and stared and swatted at mosquitoes to no avail. Is this one that requires even higher mag or must have an OIII? Any tips?




IC 1295 is the planetary nebula in the vicinity of NGC 6712. Using a narrowband or OIII filter will make it much easier to see.

Dave Mitsky


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Astrojensen
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5956377 - 07/05/13 04:56 PM

Hi Pete

It's a great list of small planetaries, for sure, but I wouldn't call most of them challenging. At least, *I* wouldn't... Most are very bright, mag 8 - 9.

I would call the list "the best small summer planetaries". I've seen many of them in my 63mm, as you may know.


Clear skies!
Thomas, Denmark


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azure1961p
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Re: Challenging Summer Planetaries new [Re: Astrojensen]
      #5956460 - 07/05/13 05:50 PM

Thomas - in my light pollution its challenging lol. I agree these are not truly challenging - Ive seen far fainter - but for the magnitude and size of the smallest its fairly challenging for me anyway. The bigger brighter 6210 and other beacons I added on a little later so it became more generalized. I've changed the title per your suggestion.

Pete

Edited by azure1961p (07/05/13 09:43 PM)


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LivingNDixie
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5956831 - 07/05/13 10:35 PM

Great list!

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REC
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Re: Challenging Summer Planetaries new [Re: LivingNDixie]
      #5957598 - 07/06/13 02:01 PM

Great list as I really like these more and more. Should I use my narrowband filter for most of these in my 8" SCT?

Thanks for posting!

Bob


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azure1961p
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Re: Challenging Summer Planetaries new [Re: REC]
      #5958164 - 07/06/13 09:04 PM

Bob I would . I find most all planetaries respond well to a UHC or an OIII . Some peculiar ones like ARO11 (Campbell's Hydrogen Star) show better with an HBeta.

Pete


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eps0mu0
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5958388 - 07/07/13 01:40 AM Attachment (50 downloads)

I did not have anything better to do, so I put your list into a spreadsheet, and added comments from three references, Sue French's wonderful "Deep Sky Wonders", Massimo Zecchin's "Brightest Planetary Nebula Observing Atlas" (downloadable), and Martin Griffith's "Planetary Nebulae and how to observe them". I have it in spreadsheet format. Take a look. I hope I did not transpose any entries. The different references do not agree 100%, even on magnitude or size, not to mention appearance. I can only attach one file at a time, apparently. If you like, I can send it out as a pdf, as well.
Note to self... spend less time at PC, more time observing...

Regards,
J.C.F.


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Asbytec
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Re: Challenging Summer Planetaries new [Re: eps0mu0]
      #5958633 - 07/07/13 09:30 AM

Alright, Pete, when the skies clear I am up for the challenge of completing your (updated) list. Post some observations and some sketches, I will when I can.

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CelestronDaddy
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Re: Challenging Summer Planetaries new [Re: eps0mu0]
      #5958661 - 07/07/13 10:02 AM

Nice! Thanks for putting this into a spreadsheet...

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REC
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Re: Challenging Summer Planetaries new [Re: eps0mu0]
      #5958673 - 07/07/13 10:09 AM

Wow, this is just great! Thanks for the sheet:)

Bob


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azure1961p
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Re: Challenging Summer Planetaries new [Re: REC]
      #5959041 - 07/07/13 02:29 PM

Thanks for the spreadsheet . Some of the comments are interesting. Where applicable I always refer to Skiff and Luginbuhl . Nice to see some other remarks too.

Pete


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Tyranthrax
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5959506 - 07/07/13 07:52 PM

I definitely want to take a look, guides like this help. . What's the best way to plan them out? some of them aren't coming up at reasonable hours. . .Like the egg for example I defiantly have that on my must see list. is there something you guys use that helps you plan the best times to view them?

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azure1961p
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Re: Challenging Summer Planetaries new [Re: Tyranthrax]
      #5959567 - 07/07/13 08:40 PM

I'm using the length of summer and some fall. When I go about it - and Ive seen half or so of these already, ill mix it up a bit with easier and more difficult. I haven't done it in a while as my mirrors older coating dissuaded me from trying anything challenging (beyond mag 10 under my sky's), but that was my M. O..

The really small stuff does best on steadier nights even if its not the clearest of all.

Pete


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blb
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5960259 - 07/08/13 10:04 AM

Quote:

...What's the best way to plan them out? some of them aren't coming up at reasonable hours. . .Like the egg for example I defiantly have that on my must see list. is there something you guys use that helps you plan the best times to view them?



All of the constellations listed seem to be best viewed in the summer time, except for IC 3568 Planetary Nebula in Camelopardalis and it is close to Polaris, so still viewable. Remember that NGC numbers increase with Right Ascension so if your view of the sky is limited, start observing with the lowest numbered object in the area of sky that you can see and view them as they rotate into view. First find all of them on your atlas before trying to view them, it makes finding a logical order easier. I think when you do this you will see that almost all of them can be viewed in the evening.

P.S., This is up at a very reasonable time now. CRL2688 = PK 80-6.1 = IV ZW 67 = UGC 11668 = the "Egg Nebula". It is located within Cygnus at R.A.= 21h 02.3m; Dec.= +36d 42m


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Tyranthrax
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Reged: 04/22/13

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Re: Challenging Summer Planetaries new [Re: blb]
      #5961479 - 07/08/13 11:56 PM

that's cool I like learning new things here!

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Astrodj
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Re: Challenging Summer Planetaries new [Re: Tyranthrax]
      #5961550 - 07/09/13 01:09 AM

Pete,

Thank you for putting together a fine list...I just love observing lists! Some of these will be new for me which is always a good thing.

And thanks J.C.F. for the spreadsheet. I always enjoy comparing the descriptions of prolific observers with what I myself see. Nice work!

Thanks Guys!


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azure1961p
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Re: Challenging Summer Planetaries new [Re: Astrodj]
      #5963102 - 07/09/13 10:20 PM

I've been googling my neighborhood and surrounding towns to make a start on this list. I just can't seriously consider making a go of this with the lit parking lot and ghastly 5v sky. The next town over has some potential good secluded spots if the Google Earth images are fairly representative.
I want a nice long respite full restoring evening with these.

Pete


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Astrodj
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5963369 - 07/10/13 01:01 AM

I hear ya. I have a green zone 45 minutes away I would like to take my dob out and hit this list with. Or at least a good portion of it. I get under a really decent sky infrequently enough that I'm very easily sidetracked and all of a sudden it's 3am.

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Astrojensen
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Re: Challenging Summer Planetaries new [Re: azure1961p]
      #5963454 - 07/10/13 02:47 AM

Quote:

I just can't seriously consider making a go of this with the lit parking lot and ghastly 5v sky.




I can understand your contempt of the brightly lit parking lot, but a NELM 5 sky isn't bad at all. I can see most of these planetaries in a 4" under a NELM 2.5 summer sky, with the Sun less than 12° below the horizon. The trick is to use high magnification, which you're going to anyway, since they're small.


Clear skies!
Thomas, Denmark


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Ron (Lubbock)
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Re: Challenging Summer Planetaries new [Re: Astrojensen]
      #5964551 - 07/10/13 06:42 PM

I just got a new scope (C11 Edge) last week and had a lot of fun observing about a dozen of these planetaries from the darker of the two sites I use here in west TX. Planetaries are cool on their own, but add a ragged milky way with lots of dark nebulae and few coyotes yelping off in the distance for a really memorable observing session. I had never seen many of the fainter PNs before due to living in the light polluted northeast until a few years ago.

A few nights ago, I imaged NGC 7139 in Cepheus from a slightly less dark site. Here's a clickable thumbnail below. I love imaging PNs as much as observing them. The diversity in colors and shapes is amazing.



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Astrojensen
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Re: Challenging Summer Planetaries new [Re: Ron (Lubbock)]
      #5965156 - 07/11/13 03:46 AM

There's no question that a dark sky is the best, but it's not strictly neccesary for many of these little nebulae.

Your observing site sounds awesome.


Clear skies!
Thomas, Denmark


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Ben Therrell
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Reged: 10/09/12

Re: Challenging Summer Planetaries new [Re: Astrojensen]
      #5965437 - 07/11/13 10:09 AM

A most elegant image, Ron! Thanks for posting.

Edited by Ben Therrell (07/11/13 10:13 AM)


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nytecam
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Re: Challenging Summer Planetaries new [Re: Ron (Lubbock)]
      #5969093 - 07/13/13 02:30 PM

Nice image Ron - reminds me of NGC 6781 in Aql:-) I'll give it a go in a few min rather than hours as your pic :-)

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John_G
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Re: Challenging Summer Planetaries new [Re: nytecam]
      #5973142 - 07/15/13 09:22 PM

Normally I don't spend much time thinking about aperture, but after the past few nights of hunting down a dozen or so planetary nebula with my 200mm, I found myself wishing for a Dob for more detail.

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