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
14Jul2026 17:44:05 PDT	sun	274.6	30.7	152062	1.00	0.0	30.7
14Jul2026 17:44:05 PDT	moon	269.6	38.0	358	0.01	8.4	30.7
14Jul2026 17:44:05 PDT	mercury	272.8	25.1	87129	0.01	5.9	30.7
14Jul2026 17:44:05 PDT	venus	223.6	55.5	139872	0.63	43.3	30.7
14Jul2026 17:44:05 PDT	jupiter	266.0	38.7	938792	1.00	10.6	30.7
    

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


% sl_smrs 37.8 -122.4
14Jul2026:
Sunrise:  06:00 PDT (61.6°)
Sunset:   20:31 PDT (298.3°)
Moonrise: 06:06 PDT (58.9°)
Moonset:  21:13 PDT (297.6°)
    

And here are the close celestial encounters for the next week:


% sl_data -start 14Jul2026 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
jupiter (full) and moon (crescent)
  start at 14Jul2026 21:00 PDT  b: 295.2° e: 1.7°  1.17° apart
  minsep at 14Jul2026 21:05 PDT  b: 295.9° e: 0.9°  1.08° apart
  end at 14Jul2026 21:05 PDT  b: 295.9° e: 0.9°  1.08° apart
venus (gibbous) and moon (crescent)
  start at 17Jul2026 10:00 PDT  b: 81.8° e: 2.7°  2.66° apart
  minsep at 17Jul2026 10:00 PDT  b: 81.8° e: 2.7°  2.66° apart
  end at 17Jul2026 10:30 PDT  b: 86.3° e: 8.1°  2.99° apart
    

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