Bipolar PNe

Owen I said that all wrong. DSF has taught me a lot. I often review Reiner Vogel's observing as well as Alvin Hueys and
Adventures in Deep Space
Please forgive and let me try this again, I did take out Abell 21. I am just trying to put a list of bipolar planetary nebula together. I asked a few years back what to observe and Steve Gottlieb suggested Orion 600 Deep sky. When through about half. I was surprised there are only about a dozen PNe and more RN and BN …

NGC 650/651
CRL 618
J320
HD 44179
J 900
M 1-7
NGC 2346
NGC 2371/2
NGC 2392
NGC 2440
OH 231.8+4.22
Jones-Emberson 1
NGC 2818a
IRAS 09371+1212
CW Leo
LoTr 5
M2-9
NGC 6302
IRAS 17150-3224
19W32
Sa 2-237
Hen 3-1475
IRAS 17441-2411
PN Hb 5
NGC 6445
HD 168625
NGC 6537
IRAS 18059-3211
MWC 922
IRAS 19024+0044
IRAS 19255+2123
M1-92
NGC 6853
Sh 2-106
NGC 6881
IRAS 20068+4051
CRL 2688
NGC 7026
Ou 4
Sh 1-89
MWP1
IRAS 22036+5306
IC 5217
Pn Hb 12
HD 179821
Thank you Mark

I am not sure if it is the wrong place to ask but some of your examples like Abell 21 are definitely not bipolar but old PN interacting with the local ISM. I am not sure why you have deleted your original post/list but in general you may have to wait some time for replies .

Owen

Quote:

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Originally Posted by Mark SW

I asked a few years back what to observe and Steve Gottlieb suggested Orion 600 Deep sky. When through about half. I was surprised there are only about a dozen PNe and more RN and BN …

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Perhaps I'm misinterpreting this comment, but I included 46 planetaries in the Deep Map 600.

Hi Mark
it may help if you make use of the HASH PN database as I suspect that any PN with an IRAS designation are likely to be ProtoPN and have no shape and are unlikely to be visible anyway. I think you said initially you were looking to find 75 Bipolar PN or just bipolar nebulae? Where did you get your inital list from?

Owen

Owen I started with a basic search for bipolar planetary nebula
Wikipedia

Homunculus Nebula around Eta Carinae [4][5][6][7]
Hubble 5 [8]
M2-9 – The Wings of a Butterfly Nebula [9][10][11]
OH231.8+4.2 – The Calabash Nebula or Rotten Egg Nebula [12][13][14][15]
Mz3 (or Menzel 3) – The Ant Nebula [16][17][18]
CRL 2688 – The Egg Nebula [19][20][21][22]
HD 44179 – The Red Rectangle Nebula [23][24][25]
MyCn18 – The Engraved Hourglass Nebula [26][27][28][29][30]
He2-104 – The Southern Crab Nebula [31][32][33]
The Boomerang Nebula [34][35][36][37][38]


NGC 2346 – Also known as the Butterfly Nebula



Sky and Telescope
M 76
J 320
J 390
Mink 1-7
NGC 2346
NGC 2371/2
NGC 2440
NGC 2818a
NGC 2899
NGC 3132

This mosaic shows stunning images of bipolar planetary nebulae, from left to right: row 1 – NGC 6302, NGC 6881, NGC 5189; row 2 – M2-9, Hen 3-1475, Hubble 5 (ESA / NASA / Hubble Heritage Team / Hubble SM4 ERO Team).


NASA/ESA Hubble Space Telescope and the NTT
bipolar planetary nebula known as PN Hb 12

I realize this is not complete. I started with the basic search and dug into each one deeper. I referred to NED and Simbad as well as other resources.
I was trying to gather as much information to determine if I was able to observe them.
Also some were found using a keyword search on DSF and other sites.
Mark

Steve I stand corrected I counted 45. I must have missed the 46th one

I also looked into protoplanetary nebula as well such as IRAS 09371+1212 Frosty Leo, IRAS 16594-4656 Pk 340-03.1 Water Lily
IRAS 17163-3907 Hen 3-1379 Fried Egg Nebula
HD 44179 CRL 618
I am just trying to put a list together of bipolar nebula I might be able to observe.

Mark, one evolution model of PNe says, that nearly all PNe are bipolar in their first phase (and before, topic PPN). Reason because some look like they are not bipolar is the line of sight and their age. So you first have to clarify what you and your project mean with "bipolar".

When you will concentrate on "visible bipolar PNe", or better, PNe that will show you the bipolar morphology in your telescope one suggestion would be to check the (few) websites which shows you pictures, sketches or descriptions of the objects. You named Reiner, Steve and Alvin, which were perfect sources. Maybe you can find one or two objects in my sketching/project sites.
- PNe overall thumbnail collection
- PPN project site (mostly bipolar)

[I would not coll LoTr 5 as bipolar as your first list shows]

Owen. Steve, and Uwe
Thank you for the help and clarification.
I am trying to put a list together of "PNe that will show you the bipolar morphology" as Uwe said.
Uwe both your PNe overall thumbnail collection, PPN project is what I am looking for.
Again I apologize for all the confusion.
Mark

As Uwe says it may also depend on the viewing angle. For instance both M57 and NGC 7293 are thought to be bipolar but we are just looking down the cone. The red rectangle may be another example of a PPNe.

Owen