... Does the elevation above sea level matter in computing the circumstances? I imagine it should, but changing the elevation in SkyMap does not have seem to...
... Yes, the user's elevation is used when computing local circumstances but, unless the elevation is extreme, the effect will be extremely small. Regards, ...
Hi, I found the arp.zip file on the homesite of SkyMap Pro. Can there 2 files used somehow to present the Arp Galaxies always on the screen ? After unzipping...
... You have to use the "DataPrep" tool (in the "SkyMap/Tools" submenu of the Windows "Start" menu) to "compile" these file into an "arp.sdc" file. This can...
Hi Chris, Thanks a lot :-) Managed to get the Arp Galaxies into my desktop :-) If anyone is interested I uploaded the arp.sdc file into the files section. It...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the skymap group. File : /ARP.sdc ...
skymap@yahoogroups.com
Jul 16, 2009 8:50 pm
13048
Comet W3 Cristensen is currenly the brightest comet in the sky at magnitude 8.6. I imaged and observed it last night. My sky brightness was 18.7 magnitudes/...
I'd like to thank Chris for producing software that is great for predicting circumstances of astronomical events. It was certainly a big help in the last...
Sorry the text got messed up. Let me try again. Latitude: 30° 42' 24.8" N Longitude: 121° 20' 17.1" E Elevation: 6 m Time: 2009 Jul 22 09:35:51 PA of...
... Could the difference have been due to the value of DeltaT? In SkyMap, under Help > Map Status, the value of DeltaT is given as +76.2. I think this is way...
... Is there a way to change the value of DeltaT that SkyMap uses? Apparently the formula used by SkyMap for extrapolating it gives a value that is way off....
... Thanks, it works. It's just a little clumsy. You see, once we got the GPS reading I immediately added the place to the locations.dat file under "China:...
... Thanks for the explanation. Can I request a feature for changing the DeltaT outside of the eclipse map? It would be useful in the following instances: 1....
Hi, Another factor to consider is that predictions are usualy based on the mean lunar limb. The irregularities in the true limb (Watts profile) can add or...
... Hi Tim, I don't think so. Based on my (relatively little) experience observing lunar occultations this difference would be a couple of seconds at the most....
... observing lunar occultations this difference would be a couple of seconds at the most. The difference in the video is about 11 seconds, too big to be...
On Wed, 29 Jul 2009 17:44:27 +0100, Chris Marriott wrote, in ... I thought the same, I had to read it a couple of times to make sure he really meant that. For...
... extraordinary ... Of course not. I was sad at what they had (unknowingly) missed. Seems a normal response to me. (Some make a whole career out of...
... Interesting. In my country people (still) believe an eclipse is caused by a dragon named Lahu eating the sun. He then spits it out after we make noise to...
... So what would have caused the difference between SkyMap's prediction and the observed? My initial thought was it was caused by a wrong DeltaT (76s - 65s =...
The latest version of Wine, which allows some Windows software to run in Linux, contains a fix related to SkyMap. See the release notes below and search the...
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