HDTenEightyP/NetNews huggingface dataset:
From: njzy@vax5.cit.cornell.edu (T. Joseph Lazio, Cornell University)
Newsgroups: sci.astro
Subject: Re: HRMS
Date: 8 Oct 92 09:35:45 EDT
Distribution: sci
Organization: Cornell University

In article <1992Oct6.185055.21075@ils.nwu.edu>,
eric@ils.nwu.edu (Eric Goldstein) writes: 
> 
> Would HRMS be able to detect signals from Earth, if (lets pretend) it
> was conducted at Tau Ceti?  In other words, do we generate signals at
> the frequencies HRMS will be listening to?

 Woodruff Sullivan (in a letter to the Editor of Science in *1978*) 
 describes a U.S. Naval Space Surveillance System which is capable of 
 broadcasting 1.4E10 W of effective radiated power into a bandwidth 
 of 0.1 Hz.  

 At the distance of Alpha Centauri, I estimated this to be a 0.5 Jy 
 source.

 Unfortunately, Sullivan does not note the frequency of the radar 
 system.  However, it seems that we are quite capable of producing 
 radar systems detectable at nearby stars.

-- 
 T. Joseph Lazio                | Why relativity? and Why  
 514 Space Sciences             | turbulence?  I really believe   
 Ithaca, NY  14853-6801         | [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: C09630GK@WUVMD (Gary Kronk)
Newsgroups: sci.astro
Subject: Re: Comet Swift-Tuttle..diameter ???
Date: 8 Oct 92 19:39:42 GMT
Organization: Washington University, St. Louis
To:           NETNEWS@WUVMD

For the last 8 nights I have observed Swift-Tuttle and have obtained
a very consistent coma diameter of 3.6 arcmin. Any variations were
never more than 0.2 arcmin off. These were all obtained with my
13.1-inch reflector. With 20x80 binoculars, the coma seemed close to
5 arcmin, but I do not put much faith in the accuracy considering my
field of view is 2.5 degrees in the binoculars.

Sincerely,
Gary W. Kronk
From: harmons@.WV.TEK.COM (Harmon Sommer)
Newsgroups: sci.astro
Subject: Re: Day Names - when did they "start"?
Date: 8 Oct 92 22:24:18 GMT
Article-I.D.: shaman.1933

Reply-To: harmons@mithril.WV.TEK.COM (Harmon Sommer)
Followup-To: 
Distribution: 
Organization: /usr/ens/etc/organization
Keywords: 

>
>What I mean is, today is Tuesday the 6th of October 1992, so if we go back
>far enough someone must have said "I name today Sunday" (for instance).
>When was this ?
>
Right after Saturday?
Newsgroups: sci.astro
From: jechilde@unccsun.uncc.edu (Jr Childers)
Subject: Re: Bright Green Fireball
Organization: University of NC at Charlotte
Distribution: na
Date: Mon, 12 Oct 1992 21:39:07 GMT

In article <1992Oct12.085326.1@scivax.stsci.edu> gliba@scivax.stsci.edu writes:
>
>Bright Green Fireball
>
>   A bright green fireball was seen over several states on friday night.
>It was said to be nearly as bright as the moon. I did not see it, but
>several witnesses that I talked to described it as quite spectacular.
>One witness, a naturalist for the Audubon Naturalist Society, saw it
>at about 7:50 EDT when he was leading a night walk on the C&O Canal on
>Maryland. He said it was traveling northern sky, was bright green in
>color, and broke up into eight pieces. One report from Ohio said the
>fireball was video taped during a local football game. As luck would have
>it, I was suppose to go on the above stated night walk friday, but because
>it was full, I was scheduled for the next night. Did anyone else see this
>barn burner.
>
>
>G.W. Gliba - 'I would rather see starlight than streetlights'

Might as well join the party.

I saw it while driving home ( 20 miles north of Charlotte NC ).
I was driving north and saw it travel west to east about 30 deg. above 
horizon.  But, it moved behind a tree befor broke up. :-(
It was bright, bright, bright green and left a trail of bright 
yellow/orange sparks.  

Are green (or any color) metiors common?

John Childers
EE Dept. 
UNC Charlotte 
john@opticslab1.uncc.edu

Newsgroups: sci.astro
From: eto@elroy.jpl.nasa.gov (Edward T. Olsen)
Subject: RE: SETI spoiler
Originator: eto@seti
Keywords: SETI, HRMS
Organization: HRMS Sky Survey, Jet Propulsion Laboratory
Date: Wed, 14 Oct 1992 22:42:38 GMT

Yes, it is quite possible to encode communications so that they cannot be
distinguished from noise.  It is unreasonable to expect a civilization which
is sending out a signal to another star system (one-way, i.e., COMMUNICATION
is not currently ongoing with that star system) would encode the signal
in such a manner.  After all, it is ment to be detected!

We are not eavesdropping on signals which are only ment for internal
consumption.

We are looking for CW and pulsed signals which may be drifting as much as
(v dot/v) = 10**-9 and which appear to be coming from a position which is
fixed with respect to the distant stars.

We cannot cover all drift rates. Any signal which drifts faster than
what I have stated above will not be detectable.

We are looking through the smog of terrestrial emissions, and so any
signal which does not satisfy the second condition will be rejected
as man made interference.

Our basic strategy is to look for signals whose signature does not mimic
natural emission. Thus we are looking for narrow band signals (the
narrowest microwave maser features are slightly less than 1 kHz wide,
we are looking in the range 20 Hz to 1 Hz) which are continuously
present or regularly pulsed.

We cannot build a more comprehensive signal detector on the restricted
funds we have available. We cannot attempt to detect what is commonly
accepted as leakage because we are not building collecting area.

Those of you who filled out a tax return last year might find it
interesting to know that 10 cents from that return went to HRMS. As
the old song goes: "Buddy, can you spare a dime?"

Edward Olsen
HRMS

-- 
 Edward T. Olsen
 Mail Stop 169-506, Jet Propulsion Laboratory
 4800 Oak Grove Dr, Pasadena, CA  91109 
 Phone: (818)-354-7604   INTERNET: eto@seti.jpl.nasa.gov (Node: 128.149.82.1)
From: metares@well.sf.ca.us (Tom Van Flandern)
Newsgroups: sci.astro
Subject: Re: Discrete Red Shifts
Date: 11 Oct 92 20:56:21 GMT
Organization: Whole Earth 'Lectronic Link


shade@chdasic.sps.mot.com (Douglas Shade) writes:

> I heard a lunch discussion today which had to do with the recent
> conclusions that all known red shifts are falling into discrete regions.
> (i.e. quantum levels?)
>
> Does any body out there have a reasonable (or humorous) explanation for
> this?

     As I reported here recently in my meeting summary for the conference
"Progress with New Cosmologies" last month, the reported "quantization" of
cosmological redshift of galaxies at about 37 km/s intervals out to at least
2000 km/s redshift (first reported by Tifft) has recently been confirmed by
Napier and colleagues, who set out originally to show that it was a
statistical fluke or sampling problem.  They used a completely independent
sample which showed the same effect that Tifft had reported a decade earlier.
There is now little room to doubt the reality of the effect.

     In the new Meta Model cosmology, widely discussed here over this past
summer and soon to be published, the phenomenon is due to density waves in
the light-carrying medium.  If so, then the effect will be direction-
dependent, which has not yet been tested for.  -|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,sci.space
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Diesen sphere or Strungen Sphere
Date: Wed, 14 Oct 1992 17:14:29 GMT
Organization: U of Toronto Zoology

In article <1992Oct14.152017.25320@murdoch.acc.Virginia.EDU> gsh7w@fermi.clas.Virginia.EDU (Greg Hennessy) writes:
>#You're not going to get
>#any useful amount of gravity out of any practical thickness.
>
>You're not going to get *ANY* gravity out of it, NO MATTER how thick
>you make it. The gravitational force on the inside of a sphere is
>zero...

Use the outside, not the inside.  Arranging indirect lighting is left
as an exercise for the student. :-)

However, the original point remains valid, alas...  There isn't enough
mass available in the solar system to get useful gravity (enough to
hold an atmosphere, say).
-- 
MS-DOS is the OS/360 of the 1980s.      | Henry Spencer @ U of Toronto Zoology
              -Hal W. Hardenbergh (1985)|  henry@zoo.toronto.edu  utzoo!henry
From: wats@scicom.AlphaCDC.COM (Bruce Watson)
Newsgroups: sci.astro
Subject: Re: Observing Venus in daylight
Date: 7 Oct 92 17:57:24 GMT
Organization: Alpha Science Computer Network, Denver, Co.

In article <pvtmakela.107@hylkn1.Helsinki.FI| pvtmakela@hylkn1.Helsinki.FI (M{kel{ Veikko) writes:
|
|
|     Venus is quite easy to observe in daylight, even with naked 
|     eye.  The only problem is to find the object and it is not
|     so easy, because to eye will not be focused to far due to
|     the light sky.
|

This is very important. The eye tends to focus a few meters in front
of you if you are looking at a bright sky without something conspicuous.
I try looking at the horizon and then back up to Venus' location.


-- 
Bruce Watson (wats@scicom)  Tumbra, Zorkovick; Sparkula zoom krackadomando.
From: martin@space.ualberta.ca (Martin Connors)
Subject: Re: Elements for Toutatis??
Reply-To: martin@space.ualberta.ca (Martin Connors)
Organization: University Of Alberta, Edmonton Canada
Date: Thu, 8 Oct 1992 19:44:41 GMT

In article <BvtBF2.EJ9@zorch.SF-Bay.ORG> mike@zorch.SF-Bay.ORG (Mike  
Smithwick) writes:
> []
> 
> Anyone have the orbital elements for asteroid Toutatis??
From Jost Jahn's mplanets file:
Name of the          EpochOrbit Mean Ano. Great axis Eccentri. Mean motio  
Perihel     Node    Inclin. Magnitudes 
4179 Toutatis        1990 11  5 176.67152  2.5094357 0.6408216 0.24793622 
275.04919 127.14243  0.46595 14.20 0.25
In heliocentric cartesians this should work out to (1950.)
x,y,z (AU)     T.1074433D1,-.483451D0,-.214434D0/
vx,vy,vz (AU/40days)     T.652D-2,.71336D0,.3052D0/
at epoch (Julian day)        DJZ=2430000.5D0

Someone may be able to post better elements - I don't know if it has been  
picked up yet for this apparition....
--
Martin Connors         |
Space Research         | martin@space.ualberta.ca  (403) 492-2526
University of Alberta  |
From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Sunspots at 13.10.1992.
Reply-To: j.jahn@abbs.hanse.de
Date: 13 Oct 92 19:26:00 MET
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Sunspots at 13.10.1992., 0 h UT.

No.    Pos.  Cl.  Ar.  Mag. SF  F  M  X
---------------------------------------
7301 12S 89W Bxo   40   b
7303 13S 84W Dao  150   b    2
7305 10N 66W Axx    0   a
7306 08S 44W Dao   80   b    2
7307 17S 03W Axx    0   a


No optical or x-ray flares yesterday observed.


 
--
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From: carlis_jc@cs1.lamar.edu
Newsgroups: sci.astro
Subject: orbital tilts info
Date: 15 Oct 92 21:09:18 GMT
Article-I.D.: cs1.1992Oct15.150918.1

Could someone out there provide me with an info source for orbital tilts of 
natural satilites within the solar system? Thank you.
Newsgroups: sci.astro
From: srgskwv@grace.cri.nz
Newsgroups: sci.astro
Subject: RE: looking for lunar occultations software
Date: Fri, 16 Oct 92 06:13:33 GMT  
Organization: Industrial Research Ltd., New Zealand.

>From: grd5005@husky1.stmarys.ca
>Subj: looking for lunar occultations software
>
>I am looking for information on free or commercial software for 
>calculating  the  times  of  lunar  occultations with very high 
>precision,  as well as for calculating  the positions  of small
>planets.   Also, information on how to order  NASA CD-ROM's  is
>very appreciated.
>
>Georgi Mandushev
>
>Department of Astronomy, Saint Mary's University
>
>e-mail:  grd5005@husky1.stmarys.ca
>
You could try :
  Gordon E. Taylor
  BAA Computing Section
c/- Mr Rob Harrold
    10A Barker Avenue
    Roseheyworth Estate
    Abertillery, Gwent, NP3 1SE
    ENGLAND

The cost of "THE LUNAR OCCULTATION PACKAGE" is 10 Pounds.
Its product code is P&DL 0010
It uses an abridged SAO catalogue containing 25138 stars.

-----------------_         
Keith Vincent     -_      Travelling at 1000 miles per hour                *
Soil Scientist      -_                                          *   .     
Manaaki Whenua       _-   with my feet firmly on the ground,
Landcare Research  _-                                         
NEW ZEALAND      _-       and making the stars stand still.   *      *
-----------------
"SRGSKWV@grv.grace.cri.nz"
From: wats@scicom.AlphaCDC.COM (Bruce Watson)
Newsgroups: sci.astro
Subject: Re: Debris from Meteor Shower Friday??
Date: 13 Oct 92 16:41:49 GMT
Organization: Alpha Science Computer Network, Denver, Co.

In article <12990040@hpspdla.spd.HP.COM- paulz@hpspdla.spd.HP.COM (Paul Zander) writes:
-On the Sunday TV news, they showed a parked car with a big hole where
-a meteroite (2 pounds ?) had landed.  It hit the trunk lid, came out
-the bottom of the car, and made a hole in the pavement.  
-
-They concluded by mentioning that the insurance covered collisions with
-other cars, but not meteorites!
-
It would be covered by comprehensive rather than collision.

-- 
Bruce Watson (wats@scicom)  Tumbra, Zorkovick; Sparkula zoom krackadomando.  
Newsgroups: sci.astro
From: dif@xilinx.com (Diana Foss)
Subject: Re: Diesen sphere or Strungen Sphere
Organization: Xilinx Inc.
Date: Wed, 14 Oct 1992 15:34:15 GMT


A Stroemgren sphere (named after the astronomer Bengt Stroemgren, who spelled
his name with an o-umlaut, not an oe) is the sphere of ionized gas that 
forms around a hot, young star still embedded in the interstellar clouds that
gave it birth. One can (and Dr. Stroemgren did) calculate the size of
this sphere based on the temperature of, and hence the number of ionizing
photons emitted by, the star. Not to be confused with a planetary nebula,
which is also a sphere of ionized gas around a hot star, but one that
was given off by the star itself.

A Dyson sphere is an entirely imaginary construct, a sphere built by people
(or other aliens, I suppose, if it appeared on Star Trek) to capture
all the energy given off by the star. A Ringworld that covers all 4 pi
steradians.

On the whole, I'd rather live on a Dyson sphere, if given the choice.

		Diana "I'm not an astronomer, but I play one on TV" Foss
-- 
Any opinions here expressed are mine, not my employer's. No, really!
From: rjohnson@cspa.DaytonOH.NCR.COM (Bob Johnson)
Newsgroups: sci.astro
Subject: Fireball sighting
Keywords: fireball friday
Date: 14 Oct 92 12:17:55 GMT
Reply-To: rjohnson@cspa.DaytonOH.NCR.COM (Bob Johnson)
Distribution: na
Organization: Corporate Information Technology Integration

I was between Marysville and Delaware, Ohio and saw the 
fireball from my car.  Trees interrupted viewing for very
short periods.  It appeared to be traveling west to east at
about a 30 degree angle of drop.  I could not see the end
of the drop due to trees so don't know if it got near the
horizon. It was greenish in color with some slight yellow
and red.  It appeared to be about midway between the moon
and the horizon as it passed beneath the moon. I would guess
the time it was obvious to me to be about 5 seconds but that
could be wrong by a few seconds in either direction.

It was SPECTACULAR.  I have seen a couple others over the
years but nothing to match this.


-- 
Robert Johnson  NCR Corporate Architecture and Applied Technology
(513)445-2593   PCD6 Dayton OH 45479    VOICEplus 622-2593  FAX (513)445-2468
Robert.Johnson@Daytonoh.NCR.COM         ...!uunet!ncrlnk!ciss!cspa!rjohnson
Newsgroups: sci.astro,sci.physics
From: chrstie@ccu.umanitoba.ca (William John M. Christie)
Subject: Re: Visual Effects of Relativistic Speed
Organization: University of Manitoba, Winnipeg, Canada
Date: Mon, 12 Oct 1992 18:08:45 GMT

Perhaps the best simulation of this (or what it would probably look like)
was shown in one of the Cosmos series.  One of the old episodes had an
update of what it would look like to travel through a crystal lattice at
normal velocities and then the appearance as you traveled through at near
light speeds.  It appeared that approaching the lattice it would seem to
'open up' upon you and swallow you.  As you moved through the squares
(that would normally just increase in size as you approached them) they
warped into circles as you went through them.  Exitting the lattice you
could see the edges of it at the corners of your screen, bent into the
centre until as you moved farther away they too left your vision.  I don't
do it justice it here but if it was as accurate a visualization as
possible it was certainly mind-boggling.

Will Christie

-- 
==========================================================================
  Any opinions expressed above are usually made with some thought which   
  is my own and is not intended to represent the University in any way.
==========================================================================
From: rclark@lpl.arizona.edu (Richard Clark x4971)
Newsgroups: sci.astro
Subject: recovering meteorites (was Re: Fireball, Meteorite)
Date: 14 Oct 92 07:48:24 GMT
Distribution: na
Organization: Lunar & Planetary Laboratory, Tucson AZ.


What ever happened to the Prairie Network made famous by the recovery of
the Lost City Meteorite? Not that its coverage extended to the Northeast
where the current incident is alledged to have occurred, but the recent
news has left me wondering about it.

Richard Clark
rclark@lpl.arizona.edu
Xref: sparky sci.astro:10873 sci.research:1194 ca.earthquakes:1226 sci.geo.geology:2158 sci.geo.meteorology:3256 sci.archaeology:2644
From: kevinq@Ingres.COM (Kevin Quinn)
Newsgroups: sci.astro,sci.research,ca.earthquakes,sci.geo.geology,sci.geo.meteorology,sci.archaeology
Subject: Re: THE TRUE CAUSE & ORIGIN OF EARTHQUAKES (AND THEIR PREDICTION)
Date: 16 Oct 92 20:47:31 GMT
Reply-To: kevinq@Ingres.COM (Kevin Quinn)
Organization: Ask Computer Systems Inc., Ingres Division, Alameda CA 94501

In article <1992Oct16.180329.7282@athena.mit.edu> pat@mtl.mit.edu (Patricia E. Varley) writes:
>A Ted Holden clone for all of us!
   ^^^^^^^^^^

Do *not* invoke this name - he may hear you and come back!!!!!!!!


kbq


--
Kevin Quinn                         | kevinq@ingres.com
                                    | {mtzinu,pacbell,ll-winken,sun}!ingres.com
My opinions are my own.  Should you think otherwise, think again.
Newsgroups: sci.astro,rec.radio.amateur.misc,rec.radio.shortwave
From: oler@rho.uleth.ca (Cary Oler)
Subject: ALERT: Minor Geomagnetic Storm Alert
Organization: University of Lethbridge
Date: 12 Oct 92 19:29:41 GMT

                    /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

                        MINOR GEOMAGNETIC STORM ALERT

                         ISSUED: 19:00 UT, 12 OCTOBER

                    /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\


ATTENTION:

     Geomagnetic activity unexpectedly surpassed the minor storm threshold at
15:00 UT on 12 October.  Major to severe storming was observed after 06:00
UT.  Activity has subsided somewhat over the last six hours.

     Moderate to strong attenuation and degradation of HF radio signals over
the high and polar latitude paths have been observed in conjunction with this
disturbance.  A definite enhancement of signals was observed near the onset
of the observed activity.  This has been followed by typical moderate to
strong degradation.  A clear source for this activity is presently not known.

     Conditions are expected to stabilize somewhat over the next six to
twelve hours.  Periods of minor to possibly major storming could still be
observed over the local night sectors during the next 24 hours.  The field is
expected to be fairly unstable for the next 3 to 5 days.


**  End of Alert  **
Newsgroups: sci.astro
From: jsmill01@ulkyvx.louisville.edu
Subject: Re: A 100 Billion?y
Date: Tue, 13 Oct 1992 19:46:41 GMT
Organization: University of Louisville

In article <1959@shaman.wv.tek.com>, harmons@mithril.wv.tek.com (Harmon Sommer) writes:
> A local newspaper article on SETI mentioned that there are 100 Billion stars
> in our solar system. How is this quantity arrived at? 
==============================================================================
And I thought the sky was so bright because of light pollution!

Actually, I suspect that the number refers to the number of stars in 
our galaxy.  Estimates are based on the amount of matter necessary to 
cause the sun to orbit the center of our galaxy in a period of around 
200 million years, observing the way stars and gas orbit outside of 
our own, and determining the mass to cause them to act as they do, and 
by observation of other spirals and noting the way matter is 
distributed in them.  I perhaps oversimplify, and I'm sure that others 
more versed will soon come to my rescue.

Scott Miller, Program Coordinator
Rauch Memorial Planetarium
University of Louisville
jsmill01@ulkyvx.louisville.edu
Newsgroups: sci.astro
Subject: Meteor Showers - THANKS!
From: omf@tiamat.hacks.arizona.edu (Oscar Fowler)
Date: 7 OCT 92 10:11:48    
Reply-To: omf@tiamat.hacks.arizona.edu
Distribution: world,local
Organization: Sirius Cybernetics Corporation
News-Software: VAX/VMS VNEWS 1.4-a4  

Just wanted to thank everyone who responded to my quest for info on meteor
showers.  It was all very much appreciated!

#############################################################################

               "If you can't lick'em, put 'em on with a big piece of tape."

Oscar Fowler
omf@hacks.arizona.edu
Newsgroups: sci.astro
From: alopez-o@neumann.uwaterloo.ca (Alex Lopez-Ortiz)
Subject: Orionids
Organization: University of Waterloo
Distribution: ont
Date: Tue, 13 Oct 1992 00:49:57 GMT


There is an announced meteor shower of the Orionids on October 21st.
Do Ontarians have any suggestions of places around tornoto where city
lights
are not very bright?

Also, which time would it be better to look for the meteors in Southern
Ontario?

Alex



-- 
Alex Lopez-Ortiz                              alopez-o@maytag.UWaterloo.ca
Department of Computer Science                      University of Waterloo
Waterloo, Ontario                                                   Canada
Newsgroups: sci.astro