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

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Old October 10th, 2016, 11:31 PM
tjoneslo tjoneslo is offline
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Default Seeing Stars during the day

I've been slowly working through the Deneb sector worlds. One of the interesting things was seeing how bright Deneb (the star) really is. At an Absolute Magnitude of -8.73, it is one of the brightest stars known.

Now the Deneb star on the Charted Space map isn't the real Deneb star. The real one should be about 1000 parsecs from Terra, whereas the one on the map is about 200 or so.

I asked Josua to add a circle overlay to the Traveller Map API, and found the six brightest stars in charted space. The are (in order) Deneb, Helix, Yurm, Troutiyka, Antares, and Sargas.

The link shows these six stars, and a calculated distance where you can, in theory, see the star during daylight hours. By definition this is having the star's apparent magnitude of -4 or brighter

https://travellermap.com/?options=58...ocy5=81&ocr5=5

So as background for people running campaigns in the Spinward Marches, Deneb is, by far, the brightest star in the night sky. It is almost always visible in even in daylight, a bright point of light. In some cases it will be brighter than the far companions of some systems. And bright enough to cast shadows. On the trailing edge (and throughout the Deneb sector) Deneb will be brighter than most moons. In the Usani Subsector, the Deneb is brighter than a full moon.
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