HDTenEightyP/NetNews huggingface dataset:
From: metares@well.sf.ca.us (Tom Van Flandern)
Newsgroups: sci.astro
Subject: Re: grav lensing
Date: 21 Jul 92 15:58:45 GMT
Distribution: na,sci
Organization: Whole Earth 'Lectronic Link


Earlier, I wrote:

>> The inferred position of the invisible lobe is not as close to either the
>> galaxy or the ring center as it should be in order for a gravitational
>> lens to produce a symmetric ring.

and gsh7w@fermi.clas.Virginia.EDU (Greg Hennessy) replied:

> But the ring observed is NOT symmetric, so I don't understand why you make
> this claim.

     No ring is *perfectly* symmetric.  But for purposes of this discussion,
the one in question is remarkably symmetric.  We are contrasting what we do
see with what we should see, which is a ring arc.  -|Tom|-

-- 
Tom Van Flandern / Washington, DC / metares@well.sf.ca.us
Meta Research was founded to foster research into ideas not otherwise
supported because they conflict with mainstream theories in Astronomy.
Newsgroups: sci.astro
From: turner@bigbang.astro.indiana.edu (George Wm Turner)
Subject: Re: An Observation Question. 
Reply-To: turner@bigbang.astro.indiana.edu (George Wm Turner)
Organization: Indiana University
Date: Thu, 30 Jul 92 18:26:35 GMT


In article <1992Jul30.181344.6209@bronze.ucs.indiana.edu>, turner@bigbang.astro.indiana.edu (George Wm Turner) writes:
Newsgroups: sci.astro
From: turner@bigbang.astro.indiana.edu (George Wm Turner)
Subject: Re: An Observation Question.
Reply-To: turner@bigbang.astro.indiana.edu (George Wm Turner)
Organization: Indiana University
Date: Thu, 30 Jul 92 13:13:44 EST


>
>In article <92211.145626LXS117@psuvm.psu.edu>, <LXS117@psuvm.psu.edu> writes:
>
>    I have a question about what we really see when we
>look at the stars.  I know, for example that if you are
>looking at the bright star Vega in the constellation
>Lyra, you are seeing light which has traveled 26 light
>years to earth.  However, how far are we actually seeing?

when you look at vega, 26 light years. (sorry, cheap shot.)

>What is our real range of vision?
>                          Thanks for enlightening me!
>
>                          Lizabeth at PSU

the farthest thing the naked eye can detect is the andromeda galaxy
which is 2,100,000 (2.1 Million) light years distance. on a very dark 
night it appears 
as a dim cloudly patch; i usually first think of it as an odd cloud
on a very clear night. then i realize that is about where andromeda
is and realize it as the galaxy.  

george wm turner    turner@bigbang.astro.indiana.edu
From: bobv@spike.Jpl.Nasa.Gov (Bob von Buelow)
Newsgroups: sci.astro
Subject: Fireball report
Date: 27 Jul 92 14:55:55 GMT
Organization: Jet Propulsion Laboratory, Pasadena, CA

While driving to work this morning, heading due west across the Mojave, I
observed a fireball. 

Time:               05:15, PDT.  
Viewing conditions: perfect, visibility unlimited.  

The fireball was slighlty north of due west, dropping slightly
north of verticle at moderate speed.  It was bright, about equal to the
headlights of oncoming traffic in the pre-dawn light.  Color was quite
white.  It did not flare when it flamed out at about 15 degrees above the 
horizon.  The sky was bright enough at this time that most stars were not 
visible.


--
Bob von Buelow             Mars Observer Planning and Sequencing Element
bobv@quarky.jpl.nasa.gov         - standard disclaimers apply -
From: CARDOSO <CARD@UNB.CA>
Subject: GENESIS, WANTED!
Organization: University of New Brunswick
Date: Wed, 22 Jul 1992 19:02:24 GMT

I am considering purchasing a Televue GENESIS telescope. If you
have one for sale (or know of someone who does) please contact
me directly at my E-MAIL ADDRESS.
Thanx!
John Cardoso
e-mail address: cardoso@unb.ca

Newsgroups: sci.astro
From: gjstephe@rodan.acs.syr.edu (Greg J Stephens)
Subject: Galaxy Formation
Organization: Syracuse University, Syracuse, NY
Date: Mon, 27 Jul 92 14:52:12 EDT

I would like to know what are the conjectured differences that
cause a galaxy to become a spiral, elliptical or irregular.
Thanks in advance.
--
Greg Stephens
201 Physics Bldg.
Syracuse, NY 13244
Internet: stephens@suhep.phys.syr.edu
From: malcolm@hpwin052.uksr.hp.com (Malcolm Porter)
Newsgroups: sci.astro
Subject: Re: FOR ALL MANKIND on TBS Sunday, July 19 (APOLLO lunar missions)
Date: 24 Jul 92 15:57:51 GMT
Organization: HP AEO - London, England

/ hpwin052:sci.astro / klaes@verga.enet.dec.com (Larry Klaes) /  7:19 pm  Jul 17, 1992 /
    	For those of you in the U.S. with cable television, National 
    Geographic Explorer is presenting the film FOR ALL MANKIND on the 
    Turner Broadcast Station (TBS) this Sunday, July 19 at 9 p.m. ET.  
    It is a film about the APOLLO manned lunar missions, taken from 
    thousands of hours of NASA film footage.

        Larry Klaes  klaes@verga.enet.dec.com
		     or - ...!decwrl!verga.enet.dec.com!klaes
    		     or - klaes%verga.dec@decwrl.enet.dec.com
                     or - klaes%verga.enet.dec.com@uunet.uu.net

             "All the Universe, or nothing!" - H. G. Wells

        EJASA Editor, Astronomical Society of the Atlantic

----------
From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Sunspots at 30.07.1992.
Date: 31 Jul 92 19:01:23 GMT
Reply-To: j.jahn@abbs.hanse.de
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Sunspots at 30.07.1992., 0 h UT.

No.    Pos.  Cl.  Ar.  Mag. SF  F  M  X
---------------------------------------
7238 20S 05E Cso  160   b
7240 13S 48W Axx    0   a    1
7241 15N 30E Hsx   80   a
7242 18N 44E Cao  150   b    1
7243 12N 66W Axx   20   a
7244 17N 56E Axx    0   a


No optical or x-ray flares yesterday observed.


 
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From: ucap22a@ucl.ac.uk (Mr Alisdair R Davey)
Newsgroups: sci.astro
Subject: Geocentric Ecliptic Latitude of the Sun
Date: 28 Jul 92 14:33:43 GMT
Organization: Bloomsbury Computing Consortium, London

Hi - Can anyone point me in the direction of formulae for calculating
the geocentric ecliptic latitude of the sun. Before some shouts at me
that its zero, I know that zero is a good approximation but I need a
better one. Any references would be most appreciated. Thanks for the
attention.
Alisdair
From: bell@nssdca.gsfc.nasa.gov (E. V. Bell, II - NSSDC/HSTX/GSFC/NASA - (301)513-1663)
Newsgroups: sci.astro
Subject: Re: Phobos and Deimos
Date: 24 Jul 92 21:13:00 GMT
Organization: NASA - Goddard Space Flight Center
News-Software: VAX/VMS VNEWS 1.41

In article <1992Jul24.191933.17859@jpl-devvax.jpl.nasa.gov>, frisbee@jpl-devvax.jpl.nasa.gov (Tyler Brown) writes...
>I know that the moon Phobos means "fear" and was a consort of the God
>of war (Mars/Ares), but I forget what "Deimos" means. Could someone
>remind me?
> 
>			frisbee@devvax.jpl.nasa.gov
> 
> 

	My recollection is that Deimos means "terror". Corrections?
From: malcolm@hpwin052.uksr.hp.com (Malcolm Porter)
Date: Fri, 24 Jul 1992 16:02:44 GMT
Subject: ST-4 & PHOTOMETRY
Organization: HP AEO - London, England
Newsgroups: sci.astro

 I would be interested in hearing about anyone's experiences of
using the SBIG ST-4 CCD camera for stellar photometry. 

                         Best regards, 


                         Malcolm Porter.
Newsgroups: sci.astro
From: fy@lucid.com (Frank Yellin)
Subject: the San Jose Mercury News explains weighlessness
Organization: Lucid, Inc., Menlo Park, CA
Distribution: sci
Date: 22 Jul 92 11:29:43


The following article appeared in the Q&A section of the San Jose
(California) Mercury News on Sunday, July 19, 1992.

   Q:  How far out into space must the shuttle go before it gets out of the
   Earth's gravity?  [Dick Galli,  San Jose]

   A: It never gets out of the Earth's gravitational pull, although by the
   time it gets into orbit, the pull is very slight.  The pull is enough to
   drag abandoned equipment like the Skylab back to Earth, though it make
   [sic] take many years for it to fall.  The shuttle stays in orbit by
   matching its velocity (it's going about 17,500 mph) to the Earth's
   rotation.  When it wants to come back to Earth, it uses its engines to
   slow down so gravity can take over.

How many mistakes can you find in these four sentences?

The newspaper posted a retraction and correction this morning (July 22).

-- Frank Yellin
   fy@lucid.com
From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Sunspots at 25.07.1992.
Date: 26 Jul 92 09:40:42 GMT
Reply-To: j.jahn@abbs.hanse.de
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Sunspots at 25.07.1992., 0 h UT.

No.    Pos.  Cl.  Ar.  Mag. SF  F  M  X
---------------------------------------
7235 05S 88W Axx   10   a
7236 19N 30W Bxo   20   b
7237 05N 65W Bxo   10   b
7238 19S 69E Dso  210   b


No optical or x-ray flares yesterday observed.


 
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From: banshee@cats.ucsc.edu (Wailer at the Gates of Dawn)
Newsgroups: sci.astro
Subject: Re: Galaxy Formation
Date: 30 Jul 92 09:55:40 GMT
Organization: University of California, Santa Cruz
NNTP-Posting-Host: am.ucsc.edu


jsmill01@ulkyvx.louisville.edu writes:

>In article <1992Jul27.145212.2616@newstand.syr.edu>, gjstephe@rodan.acs.syr.edu (Greg J Stephens) writes:
>> I would like to know what are the conjectured differences that
>> cause a galaxy to become a spiral, elliptical or irregular.
>Well, according to one theory presented in a text I use for my intro. 
>astronomy classes (Kaufman's "Discovering the Universe) the 
>determining factor between getting a spiral vs. an elliptical may have 
>to do with the initial rate and subsequent efficiency of star 
>formation.  In the case of an elliptical, an efficient star formation 
>rate leads to the great reduction of star-making material, meaning 
>that there is not much material left to make future generations of 
>stars.  A spiral is less efficient in its initial star formation, 
>allowing the collapse of the protogalactic cloud to continue, 
>eventually to form into a disk and central bulge.  Material trapped 
>in the disk can then be used for future generations of stars.

One would not think that diffuse matter would have a much greater effect on
damping perpendicular motion than stars, but the role which hydrodynamic
effects play is mostly unknown.  Could a rapid starburst drive out sufficient
gas/dust to prevent the collapse into a disk?  Or does disk formation preceed
star formation in spirals, while ellipticals consume gas which would otherwise
provide hydrodynamic damping?

-- 
The Wailer at the Gates of Dawn              | banshee@cats.UCSC.EDU       |
Just who ARE you calling a FROOFROO Head?    |                             |
DoD#0667  "Just a friend of the beast."      | banshee@ucscb.UCSC.EDU      |
2,3,5,7,13,17,19,31,61,89,107,127,521,607....| banshee@ucscb.BITNET        |
Newsgroups: sci.astro
From: gerry@bluemoon.rn.com (Gerard M. Foley)
Subject: 2800MHz Solar Flux July16-25
Organization: Blue Moon BBS ((614) 868-998[024])
Date: Mon, 27 Jul 92 21:18:18 EDT

I have a fairly long listing of this and WWV A-values, but
was away for the period July 16-25.  If anyone has the values
for the period, I would be grateful to have them.

 This is from
     gerry@bluemoon.rn.com
who doesn't have his (or her) own obnoxious signature yet
From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Sunspots at 26.07.1992.
Date: 26 Jul 92 19:22:17 GMT
Reply-To: j.jahn@abbs.hanse.de
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Sunspots at 26.07.1992., 0 h UT.

No.    Pos.  Cl.  Ar.  Mag. SF  F  M  X
---------------------------------------
7232 15N 53W Cro   20   b
7236 18N 45W Hrx   10   a    1
7238 21S 57E Dso  250   b    1
7239 13S 21W Axx    0   a


No optical or x-ray flares yesterday observed.


 
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------------------------- for amateur astronomers ----------------------------
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Newsgroups: sci.astro
From: edwards@andy.bgsu.edu (Bruce Edwards)
Subject: Mansfield Ohio Star Fest? Help
Summary: Need information
Organization: Bowling Green State University B.G., Oh.
Date: Thu, 30 Jul 1992 14:39:20 GMT

A while ago someone here posted some information about a star fest
which was going to be held in Mansfield, Ohio this year.  I have
misplaced my file with the information, could someone please help!
I'm also interested in pop-up camping at the site, I seem to remem-
ber the post saying that camping might be available. Thanks-a-bunch.

edwards@andy.bgsu.edu


-- 

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
edwards@andy.bgsu.edu  (ken jenkins as guest of Bruce Edwards)
century marketing corporation
Newsgroups: sci.astro,fido.astronomy
From: aalpert@nyx.cs.du.edu (Arnold Alpert)
Subject: Algol
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Distribution: usa
Date: Thu, 30 Jul 92 22:51:57 GMT


I'm curious as to the location (As seen from Colorado in august) of the
binary eclipsing star Algol.  Could someone E-Mail me the general location?

Thanx.

Newsgroups: sci.astro
From: gjstephe@rodan.acs.syr.edu (Greg J Stephens)
Subject: Re: Galaxy Formation
Organization: Syracuse University, Syracuse, NY
Date: Tue, 28 Jul 92 22:23:51 EDT

In article <1529f3INN7j0@darkstar.UCSC.EDU> banshee@cats.ucsc.edu (Wailer at the Gates of Dawn) writes:
>
>Obviously galaxies start as an irregular clump, gravity pulls them into
>an elliptical shape, and then spin momentum conservation cause that to
>develop spiral arms.  Its all very simple.... just kidding.
>
Does this mean that the determining factor in galaxy formation
is the initial angular momemtun of the cloud? 

--
Greg Stephens
201 Physics Bldg.
Syracuse, NY 13244
Internet: stephens@suhep.phys.syr.edu
From: wats@scicom.AlphaCDC.COM (Bruce Watson)
Newsgroups: sci.astro
Subject: Calendar and Zodiac - two different subjects
Keywords: astronomy calendar Julian Gregorian precession zodiac
Date: 29 Jul 92 22:46:02 GMT
Organization: Alpha Science Computer Network, Denver, Co.


I get it now.

First topic: Calendar and calendar reform

The actual value of the tropical (equinox to equinox) year is 365.2422 days.
The Julian calendar had 365 days and an extra day every 4 years, i.e.
365.25 days. After centuries it was noticed that the error caused
a shift in the seasons; spring was occuring earlier according to the
calendar. So it was proposed to omit the extra day in century years not divisible by 400, 
this gregorian calendar has 365 + 1/4 - 1/100 + 1/400 = 365.2425.
Still not exact but close enough so that after 400 years the accumulated
discrepancey with the tropical year is only a few hours instead of
days as with the old calendar.
This will guarantee that northern hemisphere summer will remain in July.

Second topic: Precession and the location in the zodiac of the equinox

Precession happens and in 13000 years (half the cycle) northern 
hemisphere summer evenings will sport Orion and not Scorpious but it
will still be July.
There is nothing we can do with the calendar to prevent this.
-- 
 __________________________________________________________________________   
|wats@scicom.AlphaCDC.com|    "Another Case of too many scientists and     |
|Bruce Watson            |     not enough hunchbacks." -- Gary Larson      |
From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Sunspots at 22.07.1992.
Date: 23 Jul 92 20:25:40 GMT
Reply-To: j.jahn@abbs.hanse.de
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Sunspots at 22.07.1992., 0 h UT.

No.    Pos.  Cl.  Ar.  Mag. SF  F  M  X
---------------------------------------
7229 23N 54W Dao   80   b    4
7232 17N 07W Hsx   10   a
7234 17S 50W Cro   40   b    4
7235 04S 42W Bxo   20   b
7236 18N 10E Dro   40   b    3


No optical or x-ray flares yesterday observed.


 
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------------------------------------------------------------------------------
ABBS AstroMail, the first and most popular German astronomical bulletin board
------------------------- for amateur astronomers ----------------------------
    + 49 5851 7896 / V.21, V.22, V.22bis, V.32, V.42, V.42bis and MNP5
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Organization: Johannes Kepler University Linz - Computing Center
Date: Tuesday, 21 Jul 1992 21:37:22 CDT
From: Herbert Raab <K3032E0@ALIJKU11.BITNET>
Newsgroups: sci.astro
Subject: Re: Comet Macholz


The following orbital elements of comet 1992k "Machholz" by B.G.Marsden
are from 5 Observations July 5 - 10 (IAUC 5562):

T = 1992 July 11.058 TT
q = 0.82016 A.U.
Peri = 163.117
Node = 235.136 (2000.0)
Incl =  57.747

By the way, the observing conditions for mid-northern latitudes are very
unfavorable|

Have some nice looks at the heavens above|
 Yours
    Herbert Raab  --- K3032E0@EDVZ.UNI-Linz.AC.AT ---
From: njzy@vax5.cit.cornell.edu (T. Joseph Lazio, Cornell University)
Newsgroups: sci.astro
Subject: Re: Quasars and Meta
Date: 27 Jul 92 08:47:09 EDT
Distribution: sci
Organization: Cornell University

In article <Bs18DC.5LI@well.sf.ca.us>,
metares@well.sf.ca.us (Tom Van Flandern) writes: 
>
>      Now to relate this to your question about supermassive stars:  Gravity
> in the Meta Model is subtly but importantly different than in the standard
> model in three ways.  One of these concerns the density of matter.  Gravity
> in the Meta Model arises in an explicit, geometrical way from the action of
> entities called "C-gravitons" ("C" for classical, to distinguish them from
> the hypothetical spin-2 gravitons of quantum theory).  These produce the
> gravitational field around masses.  But as matter density increases, the C-
> gravitons eventually become unable to move about freely within a body.  The
> result is that part of a dense or very large star's internal matter is not
> represented in its external gravity field.  The gravitational mass and total
> matter content no longer have a one-to-one relationship.
> 
>      For planets and dwarf stars like our Sun, this is of little account.
> Some of the neutrinos we would otherwise see from the Sun do not get out, but
> little else evidences the small excess internal matter content.  But in the
> case of larger or denser masses, the excess internal matter can become
> appreciable.  This effects stellar interior models for such massive objects
> profoundly.  In particular, that well-known "instability" of large-mass stars
> which you referred to practically vanishes due to the stabilizing influence
> of the extra interior matter.

 I hate to sound like I'm badgering you, Tom, but I still don't understand
 this point.  Instability of massive stars is thought to result from 
 radiation pressure exceeding the surface gravity.  If the extra interior
 mass does not contribute to the surface gravity, assuming the luminosity 
 is unchanged, then the star should be even more unstable in your model 
 than in the standard one.  Unless I am to infer that this extra 
 interior matter does not affect either the luminosity or the surface 
 gravity, in which case I have to ask if this extra interior matter makes
 a difference at all.

-- 
 T. Joseph Lazio                | Why relativity? and Why  
 514 Space Sciences             | turbulence?  I really believe   
 Ithaca, NY  14853              | [God] will have an answer for the
 (607) 255-6420                 | first [question].
 lazio@astrosun.tn.cornell.edu  |   -- W. Heisenberg, on his death bed
ICBM:                           |
 42 deg. 20' 08" N              |              STOP RAPE
 76 deg. 28' 48" W              |
From: 1k1mgm@kuhub.cc.ukans.edu (Christopher Gunn)
Newsgroups: sci.astro
Subject: Re: Binocular opinions wanted....
Date: 25 Jul 92 14:39:03 CDT
Organization: University of Kansas Academic Computing Services

In article <1992Jul23.203100.12041@rei2.uucp>, naizer@rei2.uucp (jonathan naizer) writes:
> I'm interested in getting opinions on low-end binoculars. I have a pair of
> cheap 7x35's that I'm wanting to replace. I don't want to spend a lot of
> money as I just purchased three new eyepieces for my SCT. Orion has a pair of
> multicoated binoculars for about $100. Has anyone used these before? Are they 
> worth $100? I'm also debating about what size to get 10x50's or 7x50's. Which 
> would be better for scanning the night skies? Ideally, I'd like some 10x70's,
> but I don't think I could afford them right now....

After a small financial windfall, I bought some Fujinon 10x70s, which
are wonderful in many ways, but which, because of bulk and the need to
use a tripod, I find I don't use as much as I might with a smaller,
hand-holdable model.  It's not exactly that I'm filled with regret,
but I now realize that smaller models, perhaps especially those
with a cheaper, 'knockabout' character, are *not* necessarily
a poorly-satisfactory compromise;  they may be, in the long run,
exactly what you want.

Dickson and Dyer, in _The Backyard Astronomer's Guide_, (Camden House,
1991), say that after considerable testing they recommend Adlerblick
7x50 or 10x50 (~$290, ~$280 from Orion, by no means the cheapest place)
or the Celestron Ultimas in those sizes.  Celestron also has an Ultima
8x56.

Also, they say, "Several models of the Celestron standard line ['Pro';
approx. $150] and Swift Instruments' 7x50s and 10x50s in the $150 to
$200 range are good values.  Another recommendation in this price
range is the Bausch & Lomb 7x50 legacy."

It's not clear what's lacking in Orion's $90-$100 'Explorer' models;
specs sound OK.  Maybe someone on the net has some hands-on experience
to share....

Christopher Gunn	Molecular Graphics and Modeling Lab
SPAN--KUPHSX::GUNN	Department of Medicinal Chemistry, Malott Hall
913-864-4428 or -4495	University of Kansas, Lawrence, KS  66045
Newsgroups: sci.astro
From: tedwards@src.umd.edu (Thomas Grant Edwards)
Subject: Meteor watching
Organization: Systems Research Center, Maryversity of Uniland, College Park
Date: Wed, 29 Jul 1992 21:40:07 GMT

Last night, I and a group of friends went out to watch for
Delta Acquarids.  Suprisingly enough, the first one I saw I
caught by accident viewing through binoculars, which was quite
interesting.  Around midnight we noticed that there were many more
meteors comming from areas besides Acquarius, which we took to be
Persieds.  We didn't keep a good tally of meteors, but over a
2.5 hour of reasonable watching we saw about 15-20.  

I think we are going to target the time between moonset and first daylight
on August 10, and try to do a more exacting count of Perseids.

-Thomas

Newsgroups: sci.astro