See the mosaic I made of the Eta Carinae area.Īlso take a look at the two textures IC1805 and IC1848. In any case the textures are close enough for fine tuning by hand. I think this is mostly due to the precision of the calculations. At the moment my program works pretty well for textures under 1 degree square and within 30 degrees of the celestial equator but outside this errors start to creep in. I am reworking this program to include the size and angle calculations but it is not finished yet.īecause the photos are linear applying them to a spherical display requires quite a bit of trigonometry to find their corners depending on how far they are from the poles. I then apply these details to another program I wrote in Qbasic that calculates all the necessary coords and writes the data to a file in the format required for an insert into the textures.json file. From this I can calculate the size of the texture quite accurately using maths. I next locate two more stars with known coords to calculate the separation. This gives me a basic texture that is much easier to manipulate. I then rotate the image in photoshop to make north squarely up (within a degree or two) and crop the image so that the size is 512 x 512 pixels using the known star as the centre of the image. The way I find the centre is by locating an identifiable star as close to the centre as possible and which direction north is. The DSS display is not yet activated in stellarium but it is in the Virgo version that is available on the internet.Ĭonverting images to this form will be a problem for most because at the moment you must know the exact centre, size and offset angle in order to calculate the corner coords.
#Stellarium landscapes folder download#
This information is included in the headers of the fts images from the DSS that Stellarium can download and display.
The json display method needs to know the coords of the corners of the picture. Installation instructions are included in a readme file in each download. It is about 44MB all up so may take a while to down load. I have arranged with Mike who has kindly allowed me to put some useful add ons to Stelarium and patches to keep the latest release of Stellarium 0.10.4-win32.exe up to date with the development in the uploads section of the iceinspace site.Ī landscape of the house at the ASNSW site WirunaĪ landscape of the telescope viewing field SPSP 2008 at Wiruna
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