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Can I do this with celestia, if so how?

Posted: 24.10.2005, 21:27
by xtac
I'd like to see if the moon was visible on certain dates from a city in new york. I understand that sometimes you can not see the moon, because of whatever reasons, weather, etc.. is this possible with celestia?

Posted: 24.10.2005, 21:33
by buggs_moran
You can for the dates. Just hover over New York, hit y to sync your orbit, ctrl-g to land, hit enter, type moon, enter, and t to track. Now go to Time, set time, enter the date and time and presto. The weather on certain dates will not be the same however...

Posted: 24.10.2005, 21:44
by xtac
interesting, thanks, but how do i get to exactly to new york?

Posted: 24.10.2005, 21:55
by Malenfant
xtac wrote:interesting, thanks, but how do i get to exactly to new york?


Do you know the latitude and longitude of the city you're looking for? If so, go to the Navigation menu/Goto Object. In the box that pops up, enter the lat and lon of the city, make sure the object is Earth and put a distance of say 10000 km for the distance. Then do what Buggs said.

Be careful with the longitude though, I think any longitudes measured in terms of degrees W rather than degrees E need to be entered as negative.

Posted: 24.10.2005, 22:06
by xtac
No I don't know the coordinates, can't find them, the city in new york is

coram, new york

Posted: 25.10.2005, 00:26
by Malenfant
GO here:
http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq

Enter "coram" as the feature name, and the state as New York. You'll see the lat/lon in the next window.

It seems Coram is at 40?° 52' 07" N and 73?° 0' 5" W?

If you go here:
http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html

You can convert those to decimal degrees that Celestia likes in its Goto Object box. Since it's shown in W coordinates, you'll have to add a - sign before the decimal longitude there.

Posted: 25.10.2005, 00:55
by BrainDead
If you go HERE,
you can download a locations file for the entire Earth and forget about trying
to figure out the latitude/longitude. :lol: You'll be able to type "New York" to
get to New York.

Take care. :wink:

Posted: 25.10.2005, 01:06
by Malenfant
BrainDead wrote:If you go HERE,
you can download a locations file for the entire Earth and forget about trying
to figure out the latitude/longitude. :lol: You'll be able to type "New York" to
get to New York.

Take care. :wink:


That's a pretty useful file but I'm not sure it would have the place he wants (it's worth checking though).

I don't think he wants New York City itself, he wants a small town outside it? The point is though that there are plenty of sites on the net where you can find the lat/lon of any town/city/village/hamlet/collection of shacks that you want and not just in the US :)

(I find that going to weather.ca, typing in a city, and clicking the 'statistics' button in the sidebar will give the location of cities and towns in Canada for example).

Posted: 25.10.2005, 10:31
by BrainDead
Malenfant wrote:That's a pretty useful file but I'm not sure it would have the place he wants (it's worth checking though).

Yeah, no problem...

I just thought I'd make sure that people do know that there are location
files available. My town of Germantown, OH can be found in one of the larger
location files, and it's only got 5000 people.

Posted: 25.10.2005, 21:00
by t00fri
Well, this is a free world:

I had clearly pioneered the 41000+ Earth locations from the Gazetteer data base years ago.

http://www.shatters.net/forum/viewtopic.php?t=3925&highlight=gazetteer
http://www.shatters.net/forum/viewtopic.php?t=3959&start=0

Notably I invented a sophisticated scheme of assigning numerical importance weights to each location such that labels do NOT overlap. I have published and explained the respective strategy and the resulting formulae in a Maple script.

http://www.shatters.net/~t00fri/earth.html

My locations file was available from the Motherlode until Sep 10 2005, when I requested all links to my files to be deleted from ML for reasons not important here. My 41000+ locations were VERY popular indeed for years.

As I discovered now: One day later, Sep 11 2005, Harald (Schmidt) submitted under his name without any reference to my previous work new large size locations files to ML, including importance weights, but without any comments how they were generated...

Well, this is a free world...

Bye Fridger

Posted: 25.10.2005, 22:08
by Malenfant
It seems that Coram is in both the "31000 big ones" and the "96000 small ones" SSCs on the motherlode, but the long/lat listed for it in the 'small ones' file is -114.05 48.42, and listed as -73.00 40.87 in the 'big ones' file.

I guess they're showing different cities with the same name?

Posted: 25.10.2005, 22:55
by buggs_moran
t00fri wrote:Well, this is a free world...

Bye Fridger


We will have to start calling you Freedger :wink:

Posted: 25.10.2005, 23:10
by t00fri
buggs_moran wrote:
t00fri wrote:Well, this is a free world...

Bye Fridger

We will have to start calling you Freedger :wink:


Actually that name comes from pre-medieval German and has a nice meaning:

Code: Select all

old                new                English
--------------------------------------------
Frid              Friede                peace
Ger               Speer                 spear


In other words: FridGer = 'peace spear' = 'Fighter for the peace'
And its VERY rare. I always promised 1 free beer to anyone with that name. Never had to pay for it ;-)

Bye Fridger

Posted: 25.10.2005, 23:49
by BrainDead
t00fri wrote:Actually that name comes from pre-medieval German and has a nice meaning:

In Germantown, Ohio it means that you're someone who travels often to
the "fridge" to get another cold beer. :lol: