Nice report Steve: On NGC 6712; this one I like to call "The Wierd Globular", as it caught my eye during many years ago when I was doing the Herschel 400 list...
2681
Brian Skiff
bas@...
Jul 8, 2000 4:15 am
The paper I'm remembering was in "Science" in the early 1970s and had the title "Twilight Myopia". My memory ain't what it used to be, so the contents of the...
2680
Derek Wong
dawong@...
Jul 8, 2000 1:10 am
I have read this thread with interest, since I would love to increase my nighttime naked eye visual acuity. I finally found a paper that explains Brian's...
2679
Don
don@...
Jul 8, 2000 12:15 am
Jeff, 1.You notice astigmatism at night because almost all eyes have "whole-eye" astigmatism. It only becomes noticeable when your dark-adapted pupil diameter...
2678
Jeff Medkeff
medkeff@...
Jul 8, 2000 12:03 am
... I am in complete agreement. The other night, we snagged a clear one from the jaws of the Monsoon, and a friend came over to take some measurements of my...
2677
Brian Skiff
bas@...
Jul 7, 2000 7:28 pm
I agree entirely with Mel Bartels' comment about observers tending to focus telescopes "inward", i.e. as though they are somewhat near-sighted. Although this...
2676
Brian Skiff
bas@...
Jul 7, 2000 7:15 pm
Thanks to Steve G for lots of interesting objects and first-rate observations. Less-experienced folks on the list might consider these as models of "how to...
2675
Jeffrey D. Gortatowsky
jgortatows@...
Jul 7, 2000 6:32 pm
André, Funny you should mention the price. Mine are glass lens and very ugly 'Poindexter(sp?)' frames. Very rugged as I tend to crush them against the upper...
2674
Steve Gottlieb
sgottlieb@...
Jul 7, 2000 6:17 pm
A large group of San Francisco bay area amateurs met at Lassen National Park last week (southern end of the Cascades at 40.5 deg latitude) under excellent ...
2673
Don
don@...
Jul 7, 2000 5:53 pm
Mel, You may be right. In 1963, when I got my first telescope, the book that came with it said to always rack the eyepiece in to focus from outside focus and...
2672
André Lemieux
lemieuxetassocies@...
Jul 7, 2000 5:36 pm
That is great, can you quantiify at how much more than your usual prescription you tune them. When I first had mine, I felt one could commercialized the idea. ...
2671
Jeffrey D. Gortatowsky
jgortatows@...
Jul 7, 2000 5:27 pm
Months ago, long before this came up on AMASTRO I borrowed a plastic paddle with the small adjustment lens on it from my doctor. I used them to fine tune a...
2670
André Lemieux
lemieuxetassocies@...
Jul 7, 2000 5:26 pm
Well, by looking at the discussions it stired, seems it wasn't such a bad subject; Glasses in big black cheap plastic....100.00$ CAN Used for, aiming telrade...
2669
Mel Bartels
mbartels@...
Jul 7, 2000 5:04 pm
... But viewing through the scope, at infinity focus, and looking at the sky at the same focus should clearly require the same prescription. <<< My casual...
2668
Alan Whitman
awhitman@...
Jul 7, 2000 4:51 pm
... Here's a naked-eye target to try, the dark nebula Barnard 142/143 near Altair. I always take a look at the sky when I rise briefly at night as I awake...
2667
Don
don@...
Jul 7, 2000 4:27 pm
People, I did not say viewing the naked-eye night sky was not enjoyable. I did not say that people who need vision correction should not correct their visions....
2666
Tom Polakis
polakis@...
Jul 7, 2000 3:44 pm
Well, I'm of the opinion that the naked-eye Milky Way is the single best deep-sky "object" there is to see. I would pay big bucks for better glasses to get a...
2665
Terry.Trees@...
Jul 7, 2000 3:40 pm
Dear "Mr. Know It All", I, for one, found this discussion at least interesting, if not enlightening. I am near-sighted and must wear glasses. Without my...
2664
Don
don@...
Jul 7, 2000 3:21 pm
Folks, I have to say, I do not understand why someone would buy a pair of glasses just to improve one's naked-eye view of the sky. But, then again, I've never...
2663
André Lemieux
lemieuxetassocies@...
Jul 7, 2000 2:59 pm
JUst to be more specifique....here are the real numbers, maybe Dave would have gone a litle stronger knowing this but I did not expect some one would go ahead ...
2662
Steve Dillinger
dillingr@...
Jul 6, 2000 9:59 pm
Last weekend I observed a quasar with a redshift of 3.051, how far away is that? If I use a non-relativistic red shift formula I get about 9 billion light...
2661
Kent Wallace
kwwallace@...
Jul 6, 2000 3:09 pm
Hi Andre' There are two arrow head asterisms. One which is bright and large is north of the small dimmer one which gets you to barnard's star. Both of these ...
2660
Brian Skiff
bas@...
Jul 6, 2000 5:21 am
GSC 0425-0184 is indeed Barnard's star as recorded on the GSC plates at epoch 1982.478. The equinox 2000 position at that time was: 17 57 49.4 +04 38 35. ...
2659
André Lemieux
lemieuxetassocies@...
Jul 6, 2000 5:01 am
I read the message this week about Barnard's star an got curious. I had a look and strated star hopping from 66Ophiucis toward that nice litle asterism of star...
2658
HEALYHealyDave@...
Jul 4, 2000 8:02 pm
Nils Olof, /Brian and Andre had a brief exchange here on June 26 and 28 about improved nighttime viewing using "forced glasses," i.e., glasses that have too...
2657
Jay Reynolds Freeman
freeman@...
Jul 4, 2000 5:39 am
I just spent five nights at Lassen Peak in the Cascades, but did not get to IC 3475; I will put it on my list for next year......
2656
Barbara Wilson
bwilson2@...
Jul 3, 2000 10:05 pm
Fourth of July Holiday Infrared Globulars....or Red used to be my Favorite Color.... Despite the joking about 2MASS globulars being naked eye........on amastro...
2655
Frederick Paul Kiesch...
FKiesche3@...
Jul 3, 2000 3:16 pm
Greetings: "Starlight Nights" is one of my favorite astronomy books and one of my favorite books, period. I was very happy when S&T came out with the new...
2654
Frederick Paul Kiesch...
FKiesche3@...
Jul 3, 2000 3:15 pm
Greetings All: Well the curse of the new scope had not hit yet (of course, neither had the new scope), so I took the TV85 out for observing Friday and Saturday...
2653
Greg Crinklaw
crinklaw@...
Jul 1, 2000 8:17 pm
================================================================== July Skyhound http://www.skyhound.com/sh/skyhound.html ...
