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Re: Chippokes Presentation June 30 - Volunteers needed

Jim Tallman
 

Mark the Mansion parking lot is our normal observation site and best know to those who go out there.  I might be able to make this to help with observing.  Find a presenter and we are good J

 

 

Jim

 

From: backbayastro@... [mailto:backbayastro@...] On Behalf Of Mark
Sent: Friday, June 15, 2012 12:38 PM
To: backbayastro@...
Subject: [backbayastro] Chippokes Presentation June 30 - Volunteers needed

 

 

Outreach Opportunity:

Chippokes has their calendar open for us to do a presentation/viewing on June 30 around 8 pm.
The conference shelter has electricity for computer, projector, etc.
Viewing can be on the Shelter lawn or on the Mansion parking lot. (Not being familiar with this place, I don't know which would be best.)
Who is ready, willing and able to do a program? Please contact me, cell 434-4220

/\\ark G

George R.: Give me a call to get the info for the calendar.
Re: On line star charts

garry_mitchell74
 

Thanks Bob 

Garry Mitchell


On Jun 15, 2012, at 11:38 AM, "bob414" <bob414@...> wrote:

 

You can try searching for “triatlas”, they have sky charts.  I think in three different resolutions, free in pdf format.  If you can’t get them,  I think I still have them on my computer.

\

Bob

 

From: backbayastro@... [mailto:backbayastro@...] On Behalf Of Garry Mitchell
Sent: Wednesday, June 13, 2012 3:56 AM
To: backbayastro@...
Subject: [backbayastro] On line star charts

 

 

I used to have a link to star charts that were great I had two sets one was like sky atlas and the other was like urcromica 2000 for can't spell too good! What was the link at and how do I find them again thanks.

Garry Mitchell

=
Cub Scout Day Camp at Elks Lodge June 28

gerlach.mark
 

I have an email on this dating back to mid may. I think I heard someone else mention it at the Mt.T. Venus Transit. If anyone has been in contact with the Scouts on this, please call me on my cell, 434-4220, so we can get the info on the Calendar
Outreach Opportunity - VASC

gerlach.mark
 

All:
Parrish Crosby of Va. Air & Space Ctr in Hampton, is asking to have a few scopes for a large group (300-350) from Lincoln Military Housing Group on July 14 from 8pm - 10:30 pm. (Yes, I know, same date as the picnic, but this is PM.)
No presentation is requested, scopes can be set up on the 3rd level, before the stairs to the observation deck. I have told him I would be there, and there is at least one person coming from the VPAS group.

Anyone interested? Call me at 434-4220

/&#92;&#92;ark G.
Chippokes Presentation June 30 - Volunteers needed

gerlach.mark
 

Outreach Opportunity:

Chippokes has their calendar open for us to do a presentation/viewing on June 30 around 8 pm.
The conference shelter has electricity for computer, projector, etc.
Viewing can be on the Shelter lawn or on the Mansion parking lot. (Not being familiar with this place, I don't know which would be best.)
Who is ready, willing and able to do a program? Please contact me, cell 434-4220

/&#92;&#92;ark G


George R.: Give me a call to get the info for the calendar.
Re: Binocular FOV

Paul
 

Well, with 5 deg you can't get Orion's entire belt and M42 at the same time. You can with a 7 deg TFOV. But, a 5 deg TFOV frames the whole area from NGC 1975 to M42/43 to NGC 1980 very nicely. So perhaps it's a subtle difference, but again, it depends what you're after.

--- In backbayastro@yahoogroups.com, "Dale Carey" <vbstargazer@...> wrote:

that is true, most people won't see the difference
Dale



From: nranderson_deepskyobserver
To: backbayastro@yahoogroups.com
Sent: Friday, June 15, 2012 11:18 AM
Subject: [backbayastro] Binocular FOV



When selecting a pair a binoculars, how much does the field of view matter? Why would I want a 7 degree FOV versus 5 degrees? Does the FOV affect light-gathering power? To me, any pair of binoculars is going to seem as a wide field of view since I'm used to only observing through a telescope.

-Nick Anderson
Re: Binocular FOV

Paul
 

I think it depends on what you want the binoculars for. My 10x50's have a 5 deg TFOV, enough to frame pretty much any object, and high enough mag for seeing many features on the Moon. The view they give me of objects like the Beehive and the Pleiades is absolutely stunning.

One thing I (everyone?) love doing with binoculars is exploring the Milky Way. This is one area where having an extremely large TFOV comes in handy. Imagine being able to look up at the sky with the unaided eye and easily see 9th magnitude stars or fainter. The bigger the FOV in your binoculars, the closer you will get to that dream view.

The times I wish I had a bigger TFOV is when I want to see things like the entire Orion belt/sword region or the area around the "belly of the swan" in Cygnus or the "steam" coming out of the teacup (I could go on and on). You could stare at these sights for hours.

--- In backbayastro@yahoogroups.com, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

When selecting a pair a binoculars, how much does the field of view matter? Why would I want a 7 degree FOV versus 5 degrees? Does the FOV affect light-gathering power? To me, any pair of binoculars is going to seem as a wide field of view since I'm used to only observing through a telescope.

-Nick Anderson
Re: Binocular FOV

Dale Carey
 

that is true, most people won't see the difference
Dale
 
 
 

Sent: Friday, June 15, 2012 11:18 AM
Subject: [backbayastro] Binocular FOV

 

When selecting a pair a binoculars, how much does the field of view matter? Why would I want a 7 degree FOV versus 5 degrees? Does the FOV affect light-gathering power? To me, any pair of binoculars is going to seem as a wide field of view since I'm used to only observing through a telescope.

-Nick Anderson
Re: On line star charts

bob414
 

You can try searching for “triatlas”, they have sky charts.  I think in three different resolutions, free in pdf format.  If you can’t get them,  I think I still have them on my computer.

\

Bob

 

From: backbayastro@... [mailto:backbayastro@...] On Behalf Of Garry Mitchell
Sent: Wednesday, June 13, 2012 3:56 AM
To: backbayastro@...
Subject: [backbayastro] On line star charts

 

 

I used to have a link to star charts that were great I had two sets one was like sky atlas and the other was like urcromica 2000 for can't spell too good! What was the link at and how do I find them again thanks.

Garry Mitchell
Binocular FOV

Nick Anderson
 

When selecting a pair a binoculars, how much does the field of view matter? Why would I want a 7 degree FOV versus 5 degrees? Does the FOV affect light-gathering power? To me, any pair of binoculars is going to seem as a wide field of view since I'm used to only observing through a telescope.

-Nick Anderson
Re: IC 5146 (Cocoon Nebula)

Nick Anderson
 

Would you want to go there sometime? I'd have to okay it with my relatives first, but I could ask when I see them this weekend. I've started to make it a habit to go there on a weekend once a month near the New Moon.

Bland County would be about a 6-hour drive from Virginia Beach. Of course there are darker sites that are closer to Hampton Roads. Coinjock is almost as good as this site.

-Nick Anderson

--- In backbayastro@yahoogroups.com, Garry Mitchell <garry_mitchell74@...> wrote:

Where is the site at? I love to go and see the cave one more time. I have seen it with my H-Beta filter and it was interesting to say the least. When I saw the cave I could only barely make out the top of the cave opening only. That was a 12" LX200. What I want to bag is Centurus A I did saw omega Centuri. Hope this helps.

Garry Mitchell

Sent from my iPhone

On Jun 13, 2012, at 8:25 PM, Roy Diffrient <mail@...> wrote:

Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.

Roy

Sent from my iPod

On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?

I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.

-Nick Anderson



------------------------------------

Yahoo! Groups Links
Re: IC 5146 (Cocoon Nebula)

Nick Anderson
 

The site is a relative's farm in Bland County bordering Wythe County, about an hour away from Blacksburg. The entire area is rural so as long as I'm away from any neighbor's lights, then I should be fine. I'm planning to drive up to the top of the nearby mountain to get a clear view of the southern horizon. There's an outlook called "Big Walker Lookout" that I've set up next to before.

http://en.wikipedia.org/wiki/Big_Walker_Lookout

-Nick Anderson

--- In backbayastro@yahoogroups.com, Garry Mitchell <garry_mitchell74@...> wrote:

Where is the site at? I love to go and see the cave one more time. I have seen it with my H-Beta filter and it was interesting to say the least. When I saw the cave I could only barely make out the top of the cave opening only. That was a 12" LX200. What I want to bag is Centurus A I did saw omega Centuri. Hope this helps.

Garry Mitchell

Sent from my iPhone

On Jun 13, 2012, at 8:25 PM, Roy Diffrient <mail@...> wrote:

Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.

Roy

Sent from my iPod

On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?

I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.

-Nick Anderson



------------------------------------

Yahoo! Groups Links
Re: IC 5146 (Cocoon Nebula)

garry_mitchell74
 

Where is the site at?  I love to go and see the cave one more time.  I have seen it with my H-Beta filter and it was interesting to say the least.  When I saw the cave I could only barely make out the top of the cave opening only.  That was a 12" LX200.  What I want to bag is Centurus A I did saw omega Centuri.  Hope this helps.  

Garry Mitchell


On Jun 13, 2012, at 8:25 PM, Roy Diffrient <mail@...> wrote:

 

Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.

Roy

Sent from my iPod

On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

> I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?
>
> I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.
>
> -Nick Anderson
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

=
Re: IC 5146 (Cocoon Nebula)

Nick Anderson
 

Have you ever seen the Cocoon Nebula before Mark?

-Nick Anderson

--- In backbayastro@yahoogroups.com, Mark Ost <jimcoble2000@...> wrote:

Roy, I don't know. Has anybody ever seem that dark lane? Kent or Ted?



________________________________
From: Roy Diffrient <mail@...>
To: "backbayastro@yahoogroups.com" <backbayastro@yahoogroups.com>
Sent: Thursday, June 14, 2012 1:57 AM
Subject: Re: [backbayastro] Re: IC 5146 (Cocoon Nebula)


 
I agree with that filter choice, given no UHC. Just to clarify, with my scope & skies, the OIII made IC5146 invisible, it was minimally visible with the H beta, and the UHC provided the best view. The long dark lane leading to the nebula is not visible here, only the very faint ghostly circular patch of the nebula. But if you can see that dark lane you can use it to help you find the nebula. I think the best view was at about 150X.

Roy

Sent from my iPod

On Jun 14, 2012, at 12:37 AM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

Ok it sounds like I'll have to depend on seeing it either with my broadband filter or *gasp* unfiltered as I don't have a UHC filter. Because the broadband filter doesn't cut out the H-beta emission line, I'm hoping that it will suffice and still increase the contrast. It's worked wonders for several objects, especially the Iris Nebula.

-Nick Anderson

--- In backbayastro@yahoogroups.com, Roy Diffrient <mail@> wrote:

Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.

Roy

Sent from my iPod

On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@> wrote:

I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?

I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.

-Nick Anderson



------------------------------------

Yahoo! Groups Links






------------------------------------

Yahoo! Groups Links
Blacksburg Thursday night (spiral structure in M101)

Nick Anderson
 

I spent another hour observing tonight before the dew took over. I logged three more Herschel galaxies in Leo: NGC 3377, NGC 3412, and NGC 3489. After losing Leo to the skyglow, I panned over to M101 to give its spiral structure a serious attempt. Transparency was an 8/10 at the time. After spending several minutes observing it at 48x and 96x, I believe I was able to detect subtle hints of spiral structure for the first time! Hints of the arms were seen to the north and WNW with averted vision and concentration. I also tried for M51's spiral structure, but the dew compromised my observation.

A note about two NGC's I observed last week (and again today), M105's neighbor's have an alias NGC designation: NGC 3384/NGC 3371 and NGC 3389/NGC 3373 (the former is the one you should use). I just caught this today, which gives me another Herschel object I wasn't aware of.


Herschel 400 objects seen so far: 91

-Nick Anderson
Nightwatch at Chippokes, 6/16/2012, 6:00 pm

backbayastro@...
 

Reminder from:   backbayastro Yahoo! Group
 
Title:   Nightwatch at Chippokes
 
Date:   Saturday June 16, 2012
Time:   6:00 pm - 6:00 am
Next reminder:   The next reminder for this event will be sent in 1 day, 18 hours, 4 minutes.
Location:   Mansion parking lot at Chippokes Plantation State Park
Notes:   Weather dependent. $3.00 fee required. Permit required to be on site. See Directions folder. Observers only please.
 
Copyright © 2012  Yahoo! Inc. All Rights Reserved | Terms of Service | Privacy Policy

Re: Local astronomy shops?

jimcoble2000
 

I think Internet is the only real practical way of getting this as no one will stock an expensive eyepiece like that anywhere I know of for practical purpose. The type 4 17 is a fine piece of glass.

From: William McLean
To: "backbayastro@..."
Sent: Thursday, June 14, 2012 8:56 AM
Subject: Re: [backbayastro] Local astronomy shops?

 
That's a killer eyepiece. The one I usually leave in my scope. I got it used on astromart. Besides MRO in Chesapeake there's one in Gloucester, I think. You can check with them.
 
Carpe Noctem
Bill McLean
From: Greg Doughty
To: backbayastro@...
Sent: Thursday, June 14, 2012 8:02 AM
Subject: [backbayastro] Local astronomy shops?

 
Hi all,
 
Are there any local shops that stock eyepieces?  "Local" can be used loosely here.  I am hoping to find a Nagler 17mm.
 
Thanks,
 
Greg
ki4bbl
Re: Perfect transparency = stupendous Milky Way!

Nick Anderson
 

I think the reason I was so exhilarated was that this view is just a quarter mile away from where I live. How many observers today live where they can actually see the Milky Way from their house? (Ted, you need not answer)

I'm going to look up some facts on the Bortle classification system because I'm leaning towards believing that my morning site is a yellow zone in the summer. Half of Blacksburg's population is college students, so I've noticed in the summer that the skyglow from Blacksburg is significantly less.

-Nick Anderson

--- In backbayastro@yahoogroups.com, William McLean <preciousmyprecious@...> wrote:

It is worth shedding a tear over! I get choked up all the time with the beauty of our heavens.
 
Carpe Noctem
Bill McLean


________________________________
From: nranderson_deepskyobserver <nranderson.deepskyobserver@...>
To: backbayastro@yahoogroups.com
Sent: Thursday, June 14, 2012 3:11 AM
Subject: [backbayastro] Perfect transparency = stupendous Milky Way!


 
Not to spam you guys with another observing report...but THE MILKY WAY LOOKS ABSOLUTELY OUTSTANDING RIGHT NOW!!! I just took a study break to go outside and check on the stars and I think it's the best I've ever seen it here! After realizing I could faintly make it out from the front of my apartment, I biked to one of my observing sites and the view was almost worth shedding tears over! Even with the skyglow from nearby Christiansburg, it was easily visible from Cassiopeia to almost-Scorpius with a mottled appearance. The Great Rift was undeniable. This is probably also the best unaided eye view I've had of M8. With averted vision I could actually detect its oblong shape for the first time!

Just thought I'd share. It's a shame I couldn't be out all night observing like I usually would have.

-Nick Anderson
Re: IC 5146 (Cocoon Nebula)

Nick Anderson
 

Haha...you would be right in saying that I've considered it. I've got my plate full with the 3 that I'm actively working on. Add the PN and DS Programs to that this month and I think I'll be kept busy this year! Once I get astronomy binoculars, add the Lunar, Binocular Messier, and Binocular DS Programs. Then I'll probably go for the Urban Observing Program once I'm about finished with those. Oh wait, I forgot about the Sunspotters Program once I get a solar filter too!

I've got 313 Herschel objects to go and I'm still targeting December as my finish date. I've planned it out so I can do it, but it will take a lot of time and effort. I'm working on the Herschel galaxies in Leo and Virgo right now, but I think I'll bypass the heart of the Virgo Cluster until November. That's something I'd rather spend an entire 3-hour observation on than just the small time window I have in the evening right now. Plus that gives me more time to plan how I want to hunt it down.

I actually may get 70 Caldwells ahead of schedule this weekend. I only need 13 more and there are coincidentally 13 that I'm willing to observe this weekend. Plus there are 2 bonus clusters in Ara if I want to try them. We'll see what happens!

-Nick Anderson

--- In backbayastro@yahoogroups.com, William McLean <preciousmyprecious@...> wrote:

Oh, oh, do I detect another AL program you are working on? 
 
Carpe Noctem
Bill McLean


________________________________
From: nranderson_deepskyobserver <nranderson.deepskyobserver@...>
To: backbayastro@yahoogroups.com
Sent: Thursday, June 14, 2012 7:57 AM
Subject: [backbayastro] Re: IC 5146 (Cocoon Nebula)


 
For reference, the dark lane is also known as B168. It happens to be one of the required items for the AL's Dark Nebulae Program. It looks like it's a newer observing program though; no BBAA members (not even Ted) have completed this one yet.

I wonder which will be easier: the Cocoon or the dark nebula around it?

-Nick Anderson

--- In backbayastro@yahoogroups.com, Mark Ost <jimcoble2000@> wrote:

Roy, I don't know. Has anybody ever seem that dark lane? Kent or Ted?



________________________________
From: Roy Diffrient <mail@>
To: "backbayastro@yahoogroups.com" <backbayastro@yahoogroups.com>
Sent: Thursday, June 14, 2012 1:57 AM
Subject: Re: [backbayastro] Re: IC 5146 (Cocoon Nebula)


 
I agree with that filter choice, given no UHC. Just to clarify, with my scope & skies, the OIII made IC5146 invisible, it was minimally visible with the H beta, and the UHC provided the best view. The long dark lane leading to the nebula is not visible here, only the very faint ghostly circular patch of the nebula. But if you can see that dark lane you can use it to help you find the nebula. I think the best view was at about 150X.

Roy

Sent from my iPod

On Jun 14, 2012, at 12:37 AM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@> wrote:

Ok it sounds like I'll have to depend on seeing it either with my broadband filter or *gasp* unfiltered as I don't have a UHC filter. Because the broadband filter doesn't cut out the H-beta emission line, I'm hoping that it will suffice and still increase the contrast. It's worked wonders for several objects, especially the Iris Nebula.

-Nick Anderson

--- In backbayastro@yahoogroups.com, Roy Diffrient <mail@> wrote:

Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.

Roy

Sent from my iPod

On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@> wrote:

I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?

I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.

-Nick Anderson



------------------------------------

Yahoo! Groups Links






------------------------------------

Yahoo! Groups Links
Re: IC 5146 (Cocoon Nebula)

Roy Diffrient
 

That's a great target for Ted.  My other friend in AZ tells me that the dark lane is as obvious as the moon out there!

Roy

Sent from my iPod

On Jun 14, 2012, at 6:54 AM, Mark Ost <jimcoble2000@...> wrote:

Roy, I don't know. Has anybody ever seem that dark lane? Kent or Ted?

From: Roy Diffrient <mail@...>
To: "backbayastro@..." <backbayastro@...>
Sent: Thursday, June 14, 2012 1:57 AM
Subject: Re: [backbayastro] Re: IC 5146 (Cocoon Nebula)

 
I agree with that filter choice, given no UHC. Just to clarify, with my scope & skies, the OIII made IC5146 invisible, it was minimally visible with the H beta, and the UHC provided the best view. The long dark lane leading to the nebula is not visible here, only the very faint ghostly circular patch of the nebula. But if you can see that dark lane you can use it to help you find the nebula. I think the best view was at about 150X.

Roy

Sent from my iPod

On Jun 14, 2012, at 12:37 AM, "nranderson_deepskyobserver" <nranderson.deepskyobserver@...> wrote:

> Ok it sounds like I'll have to depend on seeing it either with my broadband filter or *gasp* unfiltered as I don't have a UHC filter. Because the broadband filter doesn't cut out the H-beta emission line, I'm hoping that it will suffice and still increase the contrast. It's worked wonders for several objects, especially the Iris Nebula.
>
> -Nick Anderson
>
> --- In backbayastro@..., Roy Diffrient wrote:
>>
>> Yes, I've seen it without an H-beta filter, but just barely, in my 18" f/4.5 with a UHC filter and good conditions in my mag 5 sky (SQM 20.0). My OIII filter did not help at all, and the H-beta didn't help much either. This is a real toughie for an 8". Good luck, and let us know your results.
>>
>> Roy
>>
>> Sent from my iPod
>>
>> On Jun 13, 2012, at 4:37 PM, "nranderson_deepskyobserver" wrote:
>>
>>> I'm planning to go on another trip to my 6.7-7.0 limiting mag site in Bland/Wythe County this weekend. Has anyone seen this nebula without a H-beta filter? In an 8-inch scope?
>>>
>>> I'm hoping to also re-observe NGC 7635 (Bubble Nebula) and NGC 7023 (Iris Nebula) in addition to attempting the ever-elusive Cave Nebula (Sh2-155). The Cave is often considered the most difficult object on the Caldwell list...even more challenging than the Bubble Nebula.
>>>
>>> -Nick Anderson
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>


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