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An observatory for my 8x8' concrete pad? by
W. eWatson[_2_]
Several years ago I built Subject pad near my house as yet another place
to observe from. I used to leave a fairly heavy and large Meade
refractor out there...
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7 |
468 |
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PolishKnight's unending nonsense by
Andrew Usher[_3_]
I am not going to reply to the contents of this post in detail,
as very little of it is pertinent to the argument. Instead I
will summarise what you are...
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5 |
533 |
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Comet Garradd Visits M71 by
Marty[_3_]
I ran out a little after 10:00 with my old C8 to get a look at Comet
Garradd's close approach to M71... It was a pretty clear night,
although kind of humid,...
( 1 2)
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17 |
1,066 |
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15 |
990 |
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Sh2-96 - Supernova remnant in Cygnus by
Anthony Ayiomamitis[_1_]
Dear group,
Third time lucky in my attempts to image Sh2-96 and which represents
the northern section of the shell of the supernova remnant G65.2+05.7
(the...
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1 |
473 |
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97 |
3,951 |
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PTF11kly - Supernova in M101 by
Anthony Ayiomamitis[_1_]
Dear group,
Here is a glimpse of the supernova in M101 which was caught in its
infant stages less than two days ago:...
( 1 2)
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12 |
1,131 |
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Comet Garradd again... by
Marty[_3_]
After seeing that it was a clear night, and the moon wasn't
interfering yet, I ran out for another look at Comet Garradd. I
hadn't seen it since my last...
( 1 2)
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14 |
2,693 |
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Abell 74 - PNe in Vul by
Anthony Ayiomamitis[_1_]
Dear group ... and oriel,
I sat down last night to pursue an old adversary, namely Abell 74 in
Vulpecula, and which has proven in the past to be a very...
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4 |
1,745 |
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Hard case for Celestron 6se? by
W. eWatson[_2_]
Any ideas where I can get such a case, Subject? Scope base and OTA in
particular, and maybe room for a 12v alarm batter (8x4x6"?).
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0 |
273 |
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23 |
1,373 |
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0 |
483 |
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Galactic bull's-eye came naturally by
Sam Wormley[_2_]
Galactic bull's-eye came naturally
http://www.sciencenews.org/view/generic/id/333592/title/Galactic_bulls-eye_came_naturally
"When Arthur Hoag first...
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0 |
282 |
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What time is it in Sydney? by
W. eWatson[_2_]
Anyone know of a clock package that I could put on my PC that I could
see time in an icon for Sydney Australia? I'm working with a fellow
there, and it would...
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5 |
384 |
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14 |
782 |
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0 |
507 |
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3 |
570 |
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New Astro Camera? On NPR today by
W. eWatson[_2_]
Early this morning when I was 1/ asleep, I thought I heard there would
be a segment on Subject. Anyone know more about it? I didn't see
anything on today's...
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2 |
547 |
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thermal imagers maximum resolution by
Ron Cuaz
Hi,
I'm trying to calculate the maximum resolution of CCDs in thermal
imagers. These device can detect pure thermal heat in the 7-13
micrometers. The...
( 1 2 3)
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20 |
1,180 |
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pixel to object mapping formula by
Ron Cuaz
Hi,
I forgot the formula.. something to do with tangent and radians.
Supposed I want to know how big a portion of object a certain distance
away would appear...
( 1 2)
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11 |
510 |