[Lvas] Lvas Digest, Vol 21, Issue 13-Virgo
John Boron
jboron at cox.net
Fri Mar 13 20:22:06 PDT 2009
Roger, if you can send the scanned copy of your sketch I would appreciate it
very much.
I am planning to go to a very dark site in Arizona the weekend of 19-22
March, about 15 miles SE of Winslow AZ. The site is called the Rock Art
Ranch. Virgo should be high in the middle of the night. I will try my hand
at sketching and give a report the following week.
John Boron
----- Original Message -----
From: <lvas-request at lvlug.org>
To: <lvas at lvlug.org>
Sent: Friday, March 13, 2009 4:36 PM
Subject: Lvas Digest, Vol 21, Issue 13
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> Today's Topics:
>
> 1. Re: Virgo Cluster Observing Tecnique (Fred Rayworth)
> 2. Re: Lvas Digest, Vol 21, Issue 10 (Fred Rayworth)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 13 Mar 2009 18:58:59 -0500
> From: Fred Rayworth <rayworth1969 at hotmail.com>
> Subject: Re: [Lvas] Virgo Cluster Observing Tecnique
> To: Las Vegas Astronomical Society <lvas at lvlug.org>
> Message-ID: <BAY119-W40CFA4B20C9281AECA4C79D49C0 at phx.gbl>
> Content-Type: text/plain; charset="windows-1252"
>
>
> Roger, and All,
>
>
>
> I have quite a bit of catching up to do! I'm crossing my fingers that next
> Saturday will be "the" night, but around here you never know what the sky
> is going to do!
>
>
>
> Fred
>
>
>
>
>
> From: drivester at hotmail.com
> To: lvas at lvlug.org
> Date: Fri, 13 Mar 2009 13:17:05 +0000
> Subject: [Lvas] Virgo Cluster Observing Tecnique
>
>
>
> This is a follow-up from yesterday's discussion regarding the "Virgo
> Cluster" which is pretty much centered around M-84 and M-86.
>
> My friend and book author, Tom Lorenzin...author of 1000+ The Amateur
> Astronomer's Field Guide to Deep-Sky Observing pointed out the nine
> galaxies one evening. I could hardly wait to to observe this group. Tom
> called this 1? degree field of galaxies "The Nonet".
>
> The galaxies comprised in this group are E to W; NGC-4435, 4438, 4425,
> 4407, 4406 (M-86) 4413, 4387, 4388, 4374 (M-84).
>
> I will send a scanned copy of my sketch with each galaxy identified to all
> if there is anyone who would like to have it for identification purposes.
>
> I will also submit a detailed description of each in the final observing
> report...hopefully along with observing notes from many others.
>
> I found it necessary to use an unusual technique to observe this group. I
> don't normally use my RA motor for tracking but in this case it was
> necessary. I hand guide almost all the time. With polar alignment I do not
> find it objectionable to slightly nudge the scope in RA to keep the object
> in view.
>
> Some of the galaxies are too faint to be seen at the low power of 57x. I
> had to use a 20mm UO Erfle to get a 1.1? degree field as I had mentioned
> in the previous e-mail.
>
> I found it necessary to look at a photograph of this group and use a
> minimum of 114x ...maybe up to 150x to see and study the fainter galaxies.
> I would then draw them in their appropriate location and also to the
> proper scale as compared to the brighter ones.
>
> With a 10-inch telescope it is necessary to use over 100x to "just see"
> galaxies that are fainter than 12th magnitude...most of the time. Of
> course it depends on the concentration and surface brightness of the
> galaxy, and of course sky conditions.
>
> John, your with your 10-inch f/12.5 Maksutov with a focal length of 3175
> mm's it is going to be hard for you to get a 1? degree field. You may want
> to use your eyepiece with the greatest field and then use a photograph as
> I do and try moving the scope to the location of each galaxy. Memorizing
> from the photo where they should be in relationship to M-84 and M-86. I
> would love to hear your results.
>
> Fred, your 16-inch should show this entire group nicely using your 38mm
> Q70 2-inch. With your focal ratio of 1828 mm's you should be able to place
> all galaxies in your 48x magnification. The greater light gathering
> ability of your 16-inch versus my 10-inch should be significate and you
> should be able to see all the fainter galaxies at the lower power. Like
> John I can hardly wait for your report.
>
> 48x/70? AF = 69 arc mins or a 1.15? degree FOV.
>
> Roger
>
>
>
>
>
>
>
>
> I can see how it might be possible for a man to look down upon the
> earth and be an atheist, but I cannot conceive how he could look up into
> the heavens and say there is no God. Abraham Lincoln
>
>
>
>
>
>
> Windows Live? Groups: Create an online spot for your favorite groups to
> meet. Check it out.
> _________________________________________________________________
> Windows Live?: Life without walls.
> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1a_explore_032009
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> ------------------------------
>
> Message: 2
> Date: Fri, 13 Mar 2009 19:00:23 -0500
> From: Fred Rayworth <rayworth1969 at hotmail.com>
> Subject: Re: [Lvas] Lvas Digest, Vol 21, Issue 10
> To: Las Vegas Astronomical Society <lvas at lvlug.org>
> Message-ID: <BAY119-W45E3C71A9B1ABD86F0C8AFD49D0 at phx.gbl>
> Content-Type: text/plain; charset="windows-1252"
>
>
> John,
>
>
>
> Thanks! I'm wondering if I'll pick all out the next time I go out.
>
>
>
> Fred
>
>
>
>> From: jboron at cox.net
>> To: lvas at lvlug.org
>> Date: Thu, 12 Mar 2009 19:38:56 -0700
>> Subject: Re: [Lvas] Lvas Digest, Vol 21, Issue 10
>>
>> Roger and Fred, I enjoyed the exchange and the sketches. I was in Death
>> Valley the last week of February on a particularly dark night. I was
>> amazed
>> at all the galaxies in the area of M 84 - 85. I was using a 10 " Maksutov
>> f
>> 12.5 with a 24mm televue. The fov is very small but the least little
>> movement of the 'scope brought another galaxy in to view. I must have
>> spent
>> 30 minutes in that one area.
>>
>> John
>> ----- Original Message -----
>> From: <lvas-request at lvlug.org>
>> To: <lvas at lvlug.org>
>> Sent: Thursday, March 12, 2009 6:13 PM
>> Subject: Lvas Digest, Vol 21, Issue 10
>>
>>
>> > Send Lvas mailing list submissions to
>> > lvas at lvlug.org
>> >
>> > To subscribe or unsubscribe via the World Wide Web, visit
>> > http://lvlug.org/mailman/listinfo/lvas
>> > or, via email, send a message with subject or body 'help' to
>> > lvas-request at lvlug.org
>> >
>> > You can reach the person managing the list at
>> > lvas-owner at lvlug.org
>> >
>> > When replying, please edit your Subject line so it is more specific
>> > than "Re: Contents of Lvas digest..."
>> >
>> >
>> > Today's Topics:
>> >
>> > 1. Re: Our last Deep-Sky object (Fred Rayworth)
>> > 2. Re: Observing: Redstone, Saturday March 14 (Fred Rayworth)
>> > 3. Re: 12 years ago (Fred Rayworth)
>> >
>> >
>> > ----------------------------------------------------------------------
>> >
>> > Message: 1
>> > Date: Thu, 12 Mar 2009 20:31:23 -0500
>> > From: Fred Rayworth <rayworth1969 at hotmail.com>
>> > Subject: Re: [Lvas] Our last Deep-Sky object
>> > To: Las Vegas Astronomical Society <lvas at lvlug.org>
>> > Message-ID: <BAY119-W365C392B0AF142C4F74E71D49C0 at phx.gbl>
>> > Content-Type: text/plain; charset="windows-1252"
>> >
>> >
>> > Roger,
>> >
>> >
>> >
>> > Very cool drawings! I'll have to go back through my notes to see what I
>> > found there.
>> >
>> >
>> >
>> > Anyone else out there have some feedback?
>> >
>> >
>> >
>> > Fred
>> >
>> >
>> >
>> >
>> >
>> > From: drivester at hotmail.com
>> > To: lvas at lvlug.org
>> > Date: Fri, 13 Mar 2009 00:44:11 +0000
>> > Subject: [Lvas] Our last Deep-Sky object
>> >
>> >
>> >
>> > LVAS
>> >
>> > This will be our last deep-sky observing object for review...following
>> > this months NGC-2403 in Camelopardalis.
>> >
>> > This would have to be one of my most favorite galaxy cluster's. M-84
>> > and
>> > M-86 are the two brighter objects. I really enjoy observing galaxy
>> > cluster's and interacting galaxies as in this case you can observe nine
>> > galaxies in a 1? FOV.
>> >
>> > The sketch was made with my 10-inch f/4.5 reflector at 57x. I was using
>> > a
>> > 20 mm UO Erfle with a 1.1? FOV. The sketch was made from my back deck
>> > with
>> > a light block curtain. This was an extraordinary evening as both seeing
>> > and transparency were excellent. The date and time was 3-16-99 @ 11:00
>> > PM
>> > Local EST.
>> >
>> > The sketch was made with a No. 2 pencil on white paper and I have
>> > inverted
>> > the colors on my scanner.
>> >
>> > How many galaxies will you be able to see?
>> >
>> > We will conclude our observing projects ending with this galaxy cluster
>> > with all information due by April 25th. The final report will be issued
>> > the first week of May.
>> >
>> > I hope each of you have enjoyed our deep-sky observing project so far
>> > and
>> > that everyone has gained something. It is my sincere hope that you will
>> > be
>> > able to use some of the material and notes to benefit your own personal
>> > observing program.
>> >
>> > Roger
>> >
>> >
>> >
>> > I can see how it might be possible for a man to look down upon the
>> > earth and be an atheist, but I cannot conceive how he could look up
>> > into
>> > the heavens and say there is no God. Abraham Lincoln
>> >
>> >
>> >
>> >
>> >
>> >
>> > Express your personality in color! Preview and select themes for
>> > Hotmail?.
>> > See how.
>> > _________________________________________________________________
>> > Windows Live?: Life without walls.
>> > http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1a_explore_032009
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>> >
>> > ------------------------------
>> >
>> > Message: 2
>> > Date: Thu, 12 Mar 2009 20:32:16 -0500
>> > From: Fred Rayworth <rayworth1969 at hotmail.com>
>> > Subject: Re: [Lvas] Observing: Redstone, Saturday March 14
>> > To: Las Vegas Astronomical Society <lvas at lvlug.org>
>> > Message-ID: <BAY119-W10B2251A9F3B5BDB106537D49C0 at phx.gbl>
>> > Content-Type: text/plain; charset="windows-1252"
>> >
>> >
>> > Not really interested with an almost full moon, but I wish you all the
>> > best.
>> >
>> >
>> >
>> > Fred
>> >
>> >
>> >
>> >
>> >
>> > Date: Thu, 12 Mar 2009 15:43:43 -0700
>> > From: scopegeek at gmail.com
>> > To: lvas at lvlug.org
>> > Subject: Re: [Lvas] Observing: Redstone, Saturday March 14
>> >
>> > Depends on how my wife is feeling Saturday - she's having some surgery
>> > tomorrow, so it just depends. I would love to go out with you, since I
>> > haven't been out for a couple of weeks.
>> >
>> > Rob
>> >
>> >
>> > On Thu, Mar 12, 2009 at 3:36 PM, David Blanchette <Yahoo at awit.com>
>> > wrote:
>> >
>> > Anyone up for a night out?
>> >
>> > The weather has been tricky this week, but there seems to be a good
>> > chance for good weather on Saturday. Friday looks clear, but the
>> > seeing looks bad, so I'm opting for Saturday.
>> >
>> > -- David
>> >
>> > _______________________________________________
>> > Sent via the Lvas mailing list Lvas at lvlug.org
>> > Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas
>> > The LVAS discussion list is hosted courtesy of LasVegas.Net
>> >
>> >
>> > --
>> > Rob Lambert
>> > 702-461-1390
>> >
>> > _________________________________________________________________
>> > Windows Live?: Life without walls.
>> > http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1a_explore_032009
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>> > ------------------------------
>> >
>> > Message: 3
>> > Date: Thu, 12 Mar 2009 20:37:08 -0500
>> > From: Fred Rayworth <rayworth1969 at hotmail.com>
>> > Subject: Re: [Lvas] 12 years ago
>> > To: Las Vegas Astronomical Society <lvas at lvlug.org>
>> > Message-ID: <BAY119-W1B3C86926CB7C50A2A60FD49C0 at phx.gbl>
>> > Content-Type: text/plain; charset="windows-1252"
>> >
>> >
>> > Roger,
>> >
>> >
>> >
>> > Wish I could draw like you! Outstanding drawings.
>> >
>> >
>> >
>> > I met Hale in Oklahoma in 96 or 97. At the time he was unemployed. Even
>> > famous observers have their hard times!
>> >
>> >
>> >
>> > Attached is a photo of him posing with me and my oldest granddaughter.
>> >
>> >
>> >
>> > Fred
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > From: drivester at hotmail.com
>> > To: lvas at lvlug.org
>> > Date: Wed, 11 Mar 2009 00:20:10 +0000
>> > Subject: [Lvas] 12 years ago
>> >
>> >
>> >
>> > It's hard to believe that it has been 12 years since Hale-Bopp streaked
>> > across the overhead and northern sky.
>> >
>> > I have attached a sketch from the night of March 16th 1997. I was using
>> > my
>> > 10-inch reflector with a 20mm UO Erfle and a 2.8x UO Klee barlow.
>> > Magnification was 160X with a FOV of 0.38? or 23 minutes of arc.
>> >
>> > The sketch was made at 4:00 AM local EST. The temperature was 29?.
>> >
>> > I was using high magnification to study the nucleus and coma.
>> >
>> > Using a small RF telescope at low power I measured a tail of over 5?
>> >
>> > I noted the coordinates at: Right ascention: 23h 15m Declination:
>> > +44? 30 minutes
>> >
>> > Now that was a comet...
>> >
>> > I also attached NGC 3226-3227 interacting galaxies.
>> >
>> > Best regards, Roger Ivester
>> >
>> >
>> > I can see how it might be possible for a man to look down upon the
>> > earth and be an atheist, but I cannot conceive how he could look up
>> > into
>> > the heavens and say there is no God. Abraham Lincoln
>> >
>> >
>> >
>> >
>> >
>> >
>> > Windows Live? Groups: Create an online spot for your favorite groups to
>> > meet. Check it out.
>> > _________________________________________________________________
>> > Express your personality in color! Preview and select themes for
>> > Hotmail?.
>> > http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme
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>> > ------------------------------
>> >
>> > _______________________________________________
>> > Lvas mailing list
>> > Lvas at lvlug.org
>> > http://lvlug.org/mailman/listinfo/lvas
>> >
>> >
>> > End of Lvas Digest, Vol 21, Issue 10
>> > ************************************
>> >
>>
>> _______________________________________________
>> Sent via the Lvas mailing list Lvas at lvlug.org
>> Set options or unsubscribe at http://lvlug.org/mailman/listinfo/lvas
>> The LVAS discussion list is hosted courtesy of LasVegas.Net
>
> _________________________________________________________________
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