sci.astro.amateur Google Group

Re: what's your bet?

2009-11-21T13:22:58Z

Actually not! The tangential speed of the rotating earth is latitude
and radius dependent, whereas the rotation rate of the earth about
it axis is directly observable independent of latitude and radius.
The earth rotates exactly 360° in 86,164.09+ seconds, the sidereal
day, and is directly observable from any location.

Re: ?? A.P. 155 EDF F-7 Value ??

2009-11-21T13:21:29Z

John and Jerry. Thank you both for taking the time to reply.
John it's "funny" you would choose the site you did for reference
information only insofar as I'm in Arizona also.
Jerry, Condition isn't an issue and as far as Certifying an A.P. Scope
goes, it's been my experience that it would be almost redundant. The almost

Re: Total noob

2009-11-21T13:16:19Z

Astrophotography can be done by a relative newbie. Probably not
through-the-scope, long-exposures of DSOs but certainly piggyback
telephoto or shots of the Moon and planets with a Webcam or digital
camera are feasible with relatively little investment. This might be
just the thing to spark a newbie's interest. You don't know.

Deep hole spotted on moon

2009-11-21T13:07:29Z

Deep hole spotted on moon
[link]
The feature may be a ‘skylight’ in an underground lava tube.

Re: Total noob

2009-11-21T13:03:37Z

I saw others offering opinions, I thought I would add my own.
The above are opinions and first-hand experiences that the OP might
consider when choosing equipment. I would point out that lower power
doesn't always equal wider FOV, nor does a larger aperture equal more
light gathered, nor does higher mag always mean that the binos are

Re: Pac boots

2009-11-21T12:40:32Z

I agree about condution being a problem. Here in Vermont where it gets nice
and cold, my old Sorels were not keeping my feet warm. I tried the insulated
insoles as last winter was winding down, and they definitely helped a lot. I
might start standing on a piece of carpet or something similarly insulating,

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

2009-11-21T12:38:32Z

You don't know all of the circumstances of the accident. It is
against the law to drive on the wrong side of the road, but the end
results of doing so vary widely, due to many factors.
I once witnessed an accident where a car in the oncoming lane crossed
the median, clipped the car in front of me, bounced off of a car in

Re: Total noob

2009-11-21T12:30:25Z

I don't think it is a good idea to turn this into a discussion of the
relative merits of binos, but when did that stop us? So, I would like to
point out that I have wonderful Celestron 7x50 Ultima binos (no longer
made), and that I recommended to my brother (a noob for sure) that he get
10x50 instead as he lives in a fairly light-polluted area. He doesn't like

Re: Doom-saying kooks, time to start screaming again

2009-11-21T12:12:55Z

One word: Baguette.
Some more words:
Murphy's Law states that: A baguette cannot be accelerated to near the
speed of light without serious consequences to the space time
continuum.
A few more:
"Trust us. We know what we are doing."
Aye-aye, Bosun! :-)

Re: Pac boots

2009-11-21T11:50:18Z

Much of the heat must be lost through conduction to the ground. When
walking your boots' soles spend less time in contact with the ground,
and there is increased heat generation by muscles. Does sitting down
on a chair with your feet off the ground help at all? Or maybe a
small insulated platform on which to stand? Or try Toasty Feet

Re: Yippee!!

2009-11-21T11:07:12Z

Tom, are you a looter or a moocher?

Re: Yippee!!

2009-11-21T11:04:49Z

ROTFL! The Democrats tend to support:
Fairness Doctrine
Gun control
Government control of business
Card check
Elimination of school vouchers
Elimination of privately-run and financed healthcare
Quotas
Increased taxes
etc.
Maybe what you meant to say was that Republicans are further to the
"right" on SOCIALIST issues.

Re: Total noob

2009-11-21T10:30:16Z

On Nov 20, 8:48 pm, "Howard Lester" <howardxtles...@verizon.net>
wrote:
7x35 binoculars with a wide field of view can be useful for finding
and identifying star patterns and asterisms from light-polluted
areas. 10x50s are a good all-around size and magnification.
Binoculars larger than that tend to be expensive and difficult to use

Re: what's your bet?

2009-11-21T07:38:54Z

Astronomers would be expected to know the cause and effect of twilight
variations for different latitudes as the quicker the transit through
the circle of illumination,the more rapid the transition from daylight
into darkness with equatorial regions seeing the most pronounced
effect and this means knowing the rotational speeds which reflect

Re: Pac boots

2009-11-21T06:59:37Z

On Sat, 21 Nov 2009 00:43:28 -0500, "John Nichols"
No doubt there are very good, fairly obscure boots out there. For
something pretty readily available, Sorels are a good choice. You can
fortify them with chemical toe warmers, or electrically heated insoles
(you plug them in to heat, and they hold the warmth for 4-6 hours). You

Re: Pac boots

2009-11-21T05:43:28Z

I figured you were kidding, but I wanted to be sure. It's been a long day
and I'm tired. :)
Anyways, -40 would be good enough then? Any particular brand?

Re: The Ping-Pong Ball and The Sun / S D Rodrian

2009-11-21T05:29:38Z

Rather than a cavity, the region is one of zero gravity!
The pressure assures that nucleii are closest to one anotther there. Fusion
could be self-regulating... If it gets too hot, the core expands, moderation
occurs and the fusion slows, etc. No thermostat required.
The vacuum concept is the one that does not occur, per se. In its place is

Re: Pac boots

2009-11-21T05:18:59Z

On Fri, 20 Nov 2009 23:11:58 -0500, "John Nichols"
I know, just kidding. Cold weather ratings are a bit of a scam; usually,
the rated temperature means the temperature at which you'll be utterly
miserable, but won't suffer permanent damage. If you want to actually be
comfortable, it's necessary to go for something designed for _much_

Re: Pac boots

2009-11-21T04:47:04Z

Do they make cat 'booties'? I need six sets.
Come spring I need forty sets.

Re: ?? A.P. 155 EDF F-7 Value ??

2009-11-21T04:45:50Z

I would take bids on it and decide. You probably have a
valuable instrument if its in excellent condition. It might
not hurt to have someone of merit examine the scope
and issue a certificate of quality. If the certificate is good
the scope will fetch a premium easily worth the trouble
getting the certificate and any serious buyer would be

Re: Pac boots

2009-11-21T04:22:34Z

I'm a bit pessimistic about cold-weather boots for astronomers. My
experience is that the warmest boots made are intended to be worn by
people who are moving around. A friend of mine who spent three winters
in Antarctica said he was amazed at how warm those white boots they
issue were in _extreme_ cold. If he stopped working or stopped walking

Re: Pac boots

2009-11-21T04:11:58Z

In Cleveland in frequently gets into the low teens and lower during winter,
and if I go to our club's dark sky site I'll for darn sure be observing on
snow, both of which are the criteria for the -100 boots.
On a personal note, I have Reynaud's syndrome, which means that when I get
cold it burns and itches like hell, so I'm trying to prevent this, even if

Re: Pac boots

2009-11-21T03:15:23Z

[link] has many boots rated at -100 or
even -150...
I personally have Sorels, rated to -85, and my feet never get cold,
although the coldest I have ever experiences was +8 degrees F. I
bought them 3 sizes too big and wear multiple pairs of heavy wool
socks.
\Paul

Re: what's your bet?

2009-11-21T02:31:53Z

Now, Jerald, why should I give a rat's ass about the tangential
speed of the earth's equator when it is so easy to observe the
rotation of the earth with respect to a star on a local meridian?
None of the speed stuff has anything to do with the fact that the
earth rotates exactly 360° in 86,164.09+ seconds, the sidereal day.

Re: Pac boots

2009-11-21T02:27:15Z

On Fri, 20 Nov 2009 20:39:50 -0500, "John Nichols"
You observe when it's -100°F? Wow! <g>
______________________________ ___________________
Chris L Peterson
Cloudbait Observatory
[link]

Re: what's your bet?

2009-11-21T02:20:22Z

That was good!

Re: Total noob

2009-11-21T01:48:28Z

"Bob Lablaw" wrote
Read this:
[link]
The gist of Alan Adler's article (for choosing binoculars for astronomy) is
a points formula where you take the square root of the aperture and
multiplying it by the magnification. 8 x 42 scores 51.8, and 7 x 50 scores
49.5. Since they're about equally effective for stargazing, I'll take the 8

Pac boots

2009-11-21T01:39:50Z

Where can I find Pac boots that are rated to -100 degrees F? My wife has
been doing a lot of searching but hasn't had any luck. We're basing this on
the recommendation The Ironman's Tips for Staying Comfortable While
Observing in Cold Weather, [link]
Thanks!

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

2009-11-21T01:37:47Z

On Fri, 20 Nov 2009 17:25:39 -0800 (PST), Quadibloc <jsav...@ecn.ab.ca>
wrote:
Prison is no place for the negligent. There are better punishments,
which don't result in a person becoming a permanent burden on society.
Prison should be reserved only for those guilty of violent, premeditated
crimes.
______________________________ ___________________

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

2009-11-21T01:25:39Z

Astoundingly, the charge laid against the driver of the other vehicle,
criminally negligent homicide, only carries a maximum penalty of two
years in jail, instead of life imprisonment in that state. It's time
to change the laws to send a stronger message to careless drivers;
whatever you do that costs a life that you should not have done is

Doom-saying kooks, time to start screaming again

2009-11-21T01:09:23Z

Restart for 'Big Bang' experiment
By Paul Rincon
Science reporter, BBC News
The Large Hadron Collider (LHC) experiment has been re-started after a
hiatus of 14 months.
Engineers have now made two stable proton beams circulate in opposite
directions around the machine.
If all continues to go well, the team might even try to increase the

A Tribute to Starlord

2009-11-21T00:40:21Z

You'll find it here: [link]

Re: what's your bet?

2009-11-21T00:25:10Z

On Fri, 20 Nov 2009 20:19:18 GMT, Sam Wormley <sworml...@mchsi.com>
wrote:
This all brings to mind the Argument Clinic,
[link]
Somebody's getting their money's worth, but I'm not sure who.
______________________________ ___________________
Chris L Peterson
Cloudbait Observatory

Re: Total noob

2009-11-21T00:17:26Z

wowee..1 x's more magnification and smaller aperture.
7 x 50's...somethings never change.

Re: what's your bet?

2009-11-20T23:52:09Z

Oriel36)
Since he is totally unteachable, it has been a very long time...

Re: what's your bet?

2009-11-20T23:35:06Z

While you are spinning your globe take note that it's axis is tilted.

Re: what's your bet?

2009-11-20T23:27:45Z

On Fri, 20 Nov 2009 00:41:54 GMT, Sam Wormley <sworml...@mchsi.com>
wrote:
Fifteen degrees per hour is true only for the mean Sun. If you use
the apparent Sun, which is the one you actually see in the sky, 15
degrees per hour is only an approximation.
Bud

Sky & Telescope's Weekly Bulletin - November 20, 2009

2009-11-20T23:14:07Z

News
============================== ==========
In Memoriam: John Gregory
------------------------------ ----------
November 19, 2009 | The world of amateur telescope making has lost a
charismatic optical engineer and innovator at age 82. One of the "big
guns" of yesteryear, John Gregory introduced the Gregory-Maksutov telescope

Re: what's your bet?

2009-11-20T22:03:35Z

The Earth's equatorial speed is 1669.8 km per hour and turns through
40,075 km in 24 hours but the fundamentalist ideology of empiricism
cannot accept what is pretty much this point of departure for
timekeeping and planetary dynamics.
[link]

Re: what's your bet?

2009-11-20T21:02:51Z

Sam, I've known you for 6-7 years now, I'm surprised you give
Jerald the time of day. For me, the subtle differences of measuring
time is complex, in fact we are still learning, but I think Jerald is
some sort of pissed off astro flunky. He could spend 1/2 the time
learning as he does complaining.
Ken

Re: Total noob

2009-11-20T20:55:09Z

Hey there post topper...
Nope, I've got 7x50, beauts, but nearing age 60 me pupils are not
open enough, it's a standard aging thing, besides, do the math and
you'll find the weight (and steadiness) of 50's may not be worth the
slight view increment.
Might be better to go to electronic image enhancement anyway.

Re: what's your bet?

2009-11-20T20:19:18Z

I take it you are refusing my offer share measuring the earth's
rotation time through 360° as opposed to some globe that you likely
can't even orient to the earth's rotational axis!
I'll bet you are in conflict with knowledgeable people in your own
church congregation, Jerald.
It is sad that you are so utterly confused, and it irritates some

Re: what's your bet?

2009-11-20T19:57:04Z

What you are looking at is a homogenised timekeeping average which
lumps the average 24 hour day together with the 365/366 day calendar
system so that when you perceive the constellations to revolve about
Polaris you are isolated as a group in fixing the daily cycle to that
apparent constellational rotation and in direct conflict with the

Re: what's your bet?

2009-11-20T19:04:58Z

In science (and astronomy) the final arbiter is observation. Observation
confirms that the earth rotates exactly 360° in 86,164.09+ seconds and
the rotation rate is verified by direct observation by a star returning
to a meridian.
You cannot deny this observable fact, Gerald.
How about I fly you over here to Ames, Iowa and together will time

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2009-11-20T19:04:45Z

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Re: Total noob

2009-11-20T18:53:24Z

We'll there you went and done it... now you're hooked!
Dennis' suggestions match what I would offer a new observer.
A planisphere is really just an ultra-basic sky map (cost about $10-15
-or you can make your own) - with a neat twist that allows you to set it
to show the sky for any date and time. It's main use is just to help

Re: Total noob

2009-11-20T18:51:24Z

"Bob Lawblaw" wrote
When it comes to viewing stars and the rest of the night sky, 8 x 42's are
even better. The more magnification, the more stars seen, and 8 x 42's (or 8
x 40's, whatever) are more versatile all-around instruments. 7 x50's were
the most recommended many years ago, but this is the 21st century. ;-)

Re: ?? A.P. 155 EDF F-7 Value ??

2009-11-20T18:38:49Z

I would suspect it's worth quite a bit, although I would have said the
same of a bare OTA; the accessories may be routine items that a buyer
might not necessarily be interested in, but the telescope itself...
a 6" apochromat?
It sold originally for $6,800, but those who bought it new had to go
on a waiting list... and a previous large apo from Astro-Physics that

Re: what's your bet?

2009-11-20T18:21:23Z

What exists is a small minority or rather,a cult which can argue
against the basic planetary facts of shape and rotation at a rate of
15 degrees per hour and that cult has now reached a stage where they
have become extremely offensive with their conclusion which links
carbon dioxide directly to global temperature just as at ground zero

Re: what's your bet?

2009-11-20T17:59:46Z

Gerald, we already know about the 24 hour solar day, the equation
of time to calculate why the solar noon is late and early, and the
Gregorian calendar with its leap years to correct for its errors.
None of that has anything has anything to do with the observable
fact that the earth rotates exactly 360° in 86,164.09+ seconds, the

sci.astro.amateur Google Group

Re: what's your bet?

Re: ?? A.P. 155 EDF F-7 Value ??

Re: Total noob

Deep hole spotted on moon

Re: Total noob

Re: Pac boots

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

Re: Total noob

Re: Doom-saying kooks, time to start screaming again

Re: Pac boots

Re: Yippee!!

Re: Yippee!!

Re: Total noob

Re: what's your bet?

Re: Pac boots

Re: Pac boots

Re: The Ping-Pong Ball and The Sun / S D Rodrian

Re: Pac boots

Re: Pac boots

Re: ?? A.P. 155 EDF F-7 Value ??

Re: Pac boots

Re: Pac boots

Re: Pac boots

Re: what's your bet?

Re: Pac boots

Re: what's your bet?

Re: Total noob

Pac boots

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

Re: Sky & Telescope's Weekly Bulletin - November 20, 2009

Doom-saying kooks, time to start screaming again

A Tribute to Starlord

Re: what's your bet?

Re: Total noob

Re: what's your bet?

Re: what's your bet?

Re: what's your bet?

Sky & Telescope's Weekly Bulletin - November 20, 2009

Re: what's your bet?

Re: what's your bet?

Re: Total noob

Re: what's your bet?

Re: what's your bet?

Re: what's your bet?

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Re: Total noob

Re: Total noob

Re: ?? A.P. 155 EDF F-7 Value ??

Re: what's your bet?

Re: what's your bet?

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