sightliner - find sight lines for the sun and moon

Not quite released yet.

Here are the current positions of the celestial objects, above the horizon as seen from San Francisco:


% sl_data -planets -num 1 -refraction 37.8 -122.4 | sl_find 'elev>0'
# datetime		object	bearing	elev	dist	full	sunsep	sunelev
24May2026 20:32:46 PDT	moon	179.2	52.4	385	0.67	110.2	-2.7
24May2026 20:32:46 PDT	mercury	294.5	8.5	183092	0.87	12.2	-2.7
24May2026 20:32:46 PDT	venus	282.5	26.0	194507	0.82	33.1	-2.7
24May2026 20:32:46 PDT	jupiter	270.1	37.4	878670	0.99	48.6	-2.7
    

Here are today's sun/moon rise/set times and bearings for San Francisco:


% sl_smrs 37.8 -122.4
24May2026:
Sunrise:  05:53 PDT (62.5°)
Sunset:   20:20 PDT (297.6°)
Moonrise: 14:18 PDT (87.3°)
Moonset:  02:19 PDT (276.7°)
    

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