[Lvas] Information M-27 From COFCT
roger ivester
drivester at hotmail.com
Thu Jun 11 08:40:49 PDT 2009
All,
Re: M-27 and visible stars within the nebula.
I have always enjoyed reading one of my reference books, Celestial Objects for Common Telescope, Volume Two; The Stars by the Rev. T.W. Webb, first edition, 1859. Copyright 1962 by Dover publications which is the sixth edition.
Many of the object reference writings are almost poetic. A few quotes from this book regarding the stars within the M-27 nebula.
The minute stars in it, of which I picked out two or three with 5-1/2 in. achr, and 8-in. silvered glass, and Denning sees 7 with 10-in. spec.,are admirable test for superior telescopes. Ingall claimed 18 with 5-1/2 in. dialyte, from keenness of vision, and Se. has drawn many more. A star in the centre, 13 m., but on photos 11.7 mag., is probably the nucleus.
As I have mentioned before this was one of the primary astronomical reference sources for over a hundred years.
It was revised in 1917 by Rev. T.E. Espin. I am sure all have observed M-41 just below Sirius, and have noted the beautiful orange star in the central region. This star is known as the Espin star.
Roger
The moon and stars to govern the night; his love endures forever. Psalm 136:9
From: rayworth1969 at hotmail.com
To: lvas at lvlug.org
Date: Wed, 10 Jun 2009 19:53:37 -0500
Subject: Re: [Lvas] Robs Image of M-27
All,
Robs image comes pretty close to the actual view through a 16", minus the color, of course. There is really a lot more to see than just an hourglass shape too.
I think it'll make an excellent challenge.
Fred
From: drivester at hotmail.com
To: lvas at lvlug.org; scopegeek at gmail.com; fred.rayworth.ctr at nellis.af.mil; trenglish at gtcc.edu; steve.davis at fascontrols.com
Date: Fri, 5 Jun 2009 18:17:50 +0000
Subject: [Lvas] Robs Image of M-27
All,
Re: M-27 ... the central star and overall shape
Rob has already got one of the July objects off and running with a presentation of his "almost" big scope visual view of M-27.
Fred mentioned this also in a previous e-mail. I must concur with Fred, that I too saw a view very similar view, but of course lacking much of the fine detail or structure as the Mallincam image.
I just wanted to share a note that I made on Thursday 28-September-95.
Telescope: 14.5-inch Refelctor with a 20mm Nagler eyepiece.
Large, hourglass shape, with faint extensions on both sides creating an almost round appearance. Very uneven texture, and could see the central star and few other faint stars within the nebula.
This was my first time seeing stars in M-27
Roger
The moon and stars to govern the night; his love endures forever. Psalm 136:9
> Date: Thu, 4 Jun 2009 05:46:53 -0700
> From: scopegeek at gmail.com
> To: drivester at hotmail.com
> Subject: Re: Need your help - Review of Spring Supplement and May Observer Challenge
>
> Hey Roger,
>
> Do you mean this central star and round shape? Image is a single frame
> 7-second exposure.
>
> Rob
>
>
> roger ivester wrote:
> >
> > Hey guy's do you think we need to add another object? As I mentioned
> > earlier, M-27 might be a good addition as I want to attempt the 12th
> > magnitude central star. I was able to see it once in a 14.5-inch
> > reflector, but not in my 10-inch.
> >
> > Gentlemen, what are yours thoughts? I am going to be looking for the
> > star regardless. Have either of you ever seen this star. A very
> > careful and thorough observer will see more of a round shape to this
> > nebula. So the central star and shape would be the challenge.
> >
> > roger
>
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