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Messages 5639 - 5668 of 5914   Oldest  |  < Older  |  Newer >  |  Newest
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5639
Hi guys, What's the current Delta-T? (difference beween terrestrial time TT and Universal Time UT). Thanks, Geoff...
Geoff Dudley
gd253
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May 10, 2009
9:04 am
5640
~ =74.5s 2009/5/10 Geoff Dudley <dudley.geoff@...> ... -- With best regards, Oleg Maliy Zaporozhye Astronomical Club "Altair" [Non-text portions of this...
Oleg Maliy
astroclubzp@...
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May 10, 2009
9:58 am
5641
Oh! :( I have written DT-UT. *Terrestrial Time (TT)* : The timescale used for apparent geocentric ephemerides whose unit of time is the SI...
Oleg Maliy
astroclubzp@...
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May 10, 2009
1:18 pm
5642
I have plenty of trees from my site, and I set up a local horizon to reproduce them. The program is ignoring "reverses" in azimuth - in other words, where the...
Kevin Quin
astrovienna
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May 16, 2009
7:18 pm
5643
The custom horizon feature (in v2.76, at least) is pretty basic and assumes that all obstructions are convex as seen from above. So that puts some limitations...
John Mahony
jmmahony
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May 17, 2009
11:04 am
5644
How can I eliminate a recurrent message "supply correct path for Deepsky 2000 base directory"? I don't know how to either supply that information nor...
martykiel
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May 17, 2009
11:50 pm
5645
If you DO NOT have Deepsky installed, you must go into the catalog setup (stars tab) and TURN OFF (uncheck) "Deepsky Base" (and the Hubble GSC and Super Tycho...
Rod Mollise
rmollise
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May 18, 2009
12:06 am
5646
Thank you for the help. I did have Deepsky installed, and with a little trial and error supplied a correct path and the annoying message is gone. It worked! ...
martykiel
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May 18, 2009
7:35 pm
5647
I want to make a field of view indicator so I can use my Canon 40D (on a tripod, not through a scope) for astrophotgraphy. i want to be able to show the...
crayonharry
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May 19, 2009
8:17 pm
5648
Which part aren't you sure about Harry? Determining the field of view or how to enter that into CdC? Let us know which version you're using, please. Sander...
Sander Pool
sander_pool
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May 20, 2009
12:17 am
5649
im not sure how to do either ... determine the field of view and also how to enter it in the program....
crayonharry
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May 20, 2009
1:42 pm
5650
Hi Harry, the official way to do step 1 is to plate solve. To be honest that's too involved to explain here. You may want to google for it. A poor man's plate...
Sander Pool
sander_pool
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May 20, 2009
1:49 pm
5651
Or take a picture of the Moon. This is approx 0.5 degrees across which gives you the scaling factor you need. ________________________________ From:...
Simon Hicks
simonhicks001
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May 20, 2009
1:53 pm
5652
Eh, yeah or save yourself a ton of time and do that :) Good idea Simon! Sander...
Sander Pool
sander_pool
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May 20, 2009
2:01 pm
5653
I disagree! The poor-man approach to plate solving is uploading your picture to flickr and submit it to the astrometry.net group, it will be solved like this: ...
Philipp Salzgeber
astro_graph
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May 20, 2009
2:23 pm
5654
If you trust the focal length of the optics (and this is just a camera lens, so it should be accurate), then it's easier to just calculate the FOV numbers...
John Mahony
jmmahony
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May 20, 2009
2:25 pm
5655
Thanks for that information! CdC can display FITS images with location, direction and scale information embedded in them. This works fine with Elbrus (also...
Sander Pool
sander_pool
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May 20, 2009
2:29 pm
5656
When you have an account with astrometry.net you can upload fits images and get the image back with the proper header information. Of course colour DSLR images...
Philipp Salzgeber
astro_graph
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May 20, 2009
2:36 pm
5657
I would say it is 66.18s, 32.18 + 24 leap seconds + 10 s initial offset. See http://en.wikipedia.org/wiki/Terrestrial_Time /Thomas...
thomasngab
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May 28, 2009
4:58 pm
5658
I have made a new catalog of stars that is based on the BSC-catlog but with updated data and inclusion of info of both double stars and variable stars. The...
thomasngab
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May 28, 2009
5:32 pm
5659
Hi all, A few days ago I finished the translation of the Dutch documentation of Cartes du Ciel version 3. You can find it here: ...
Marc Fokker
marcus_fokker
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May 29, 2009
7:21 am
5660
Hello all, I have recently downloaded V2.76 plus the repair after struggling with one of the commercial programs for several years (and several dollars). I...
griff_nc
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May 29, 2009
7:03 pm
5661
Hi Griff, don't forget to try the 3.0 version when you get a chance. Get it at http://www.ap-i.net . It uses the same catalog format so you don't have to...
Sander Pool
sander_pool
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May 29, 2009
7:07 pm
5662
To All, Has anyone used CdC to control an equatorially mounted Cassegrain powered by Animatics SmartMotors via ASCOM drivers? Amateur Astronomers, Inc....
Ray Shapp
rayshapp
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Jun 3, 2009
6:47 am
5663
Hi Ray, sounds like you have quite a project on your hands :) I recommend you try to develop an ASCOM interface for your scope so you are not bound to just...
Sander Pool
sander_pool
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Jun 3, 2009
1:27 pm
5664
I'd appreciate hearing from anyone out there who is successfully connecting to their scopes using CdC ASCOM drivers through a BT device. Specifically, which...
Steve Berte
thebertes
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Jun 3, 2009
8:14 pm
5665
... Hi Steve, I control my Nexstar 11 GPS using the AIRcable Serial 3, CDC 3X and ASCOM. This setup works flawlessly for me even when I use ASCOM's POTH and...
iccd1
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Jun 3, 2009
10:28 pm
5666
Will someone please tell me what the deep sky object groups that are designated "Cr" and "Mel". Thanks. Bob Harris...
growler3
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Jun 4, 2009
1:41 am
5667
... Those are Open Clusters. Cr = Collinder Mel = Melotte They are usually associated with a number. For example Cr 399 is the Coat Hanger cluster. Hope that...
Jeff Burton
jburton.geo
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Jun 4, 2009
1:46 am
5668
Yep, it's been a whole year again and time for the annual update to the PGC/LEDA galaxy catalog for CDC. This year we have a whopping 1,708,809 galaxies in the...
Jeff Burton
jburton.geo
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Jun 4, 2009
1:51 am
Messages 5639 - 5668 of 5914   Oldest  |  < Older  |  Newer >  |  Newest
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