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Imperial Interstellar Scout Service Details of the worlds of the Imperium (and beyond).

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Old March 4th, 2016, 08:48 AM
Garnfellow Garnfellow is offline
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Default Real Stars in Charted Space

Although considerable distortion occurs when 3-D stellar positions are projected onto a 2-D jump map, several people over the years have tried to place real stars in Charted Space.

Several stars, mostly in the Solomani Rim, have canonical positions; most of these were obliquely established in Classic Traveller Alien Module 6 - Solomani. (See also "The Known Star List for the Solomani Rim" from Traveller Chronicle 10.) Some maps of Charted Space have positions of very bright stars, though these are very hit or miss: Antares is in vaguely the right position, but Deneb and Canopus are far too close to Terra.

I decided to give it a try myself, starting with list of the 300 Brightest Stars from the "An Atlas of the Universe" website.

This list gives distance from Terra and position in galactic longitude. Assuming 0 degrees galactic longitude corresponds to coreward, and 90 degrees corresponds to spinward, using a little trigonometry we can then calculate the approximate position within Charted Space of these stars. I was hoping to get some eyes on my Google Sheets to make sure my methodology works:

The Brightest Real-World Stars in Charted Space

The Google Sheets workbook contains a Notes sheet that goes into more detail, but basically I translated the galactic longitude and distance into polar coordinates with Terra (Solomani Rim 1827) at position (0,0). I then converted those coordinates into hex offsets, and then determined where the resulting position fell within Charted Space to get a sector and hex number.

There are several places where I could have screwed up, so I would welcome any questions, thoughts, or corrections.

Last edited by Garnfellow; March 4th, 2016 at 01:10 PM..
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