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
14Mar2026 13:17:36 PDT	sun	179.6	49.9	148749	1.00	0.0	49.9
14Mar2026 13:17:36 PDT	moon	225.7	13.3	392	0.19	52.4	49.9
14Mar2026 13:17:36 PDT	mercury	199.2	45.0	94718	0.10	14.1	49.9
14Mar2026 13:17:36 PDT	venus	153.9	52.6	242864	0.96	16.2	49.9
14Mar2026 13:17:36 PDT	mars	197.1	41.7	347306	0.99	14.6	49.9
14Mar2026 13:17:36 PDT	saturn	165.0	50.6	1568728	1.00	9.4	49.9
    

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


% sl_smrs 37.8 -122.4
14Mar2026:
Sunrise:  07:22 PDT (92.4°)
Sunset:   19:16 PDT (267.9°)
Moonrise: 05:07 PDT (120.9°)
Moonset:  14:50 PDT (241.0°)
    

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


% sl_data -start 14Mar2026 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
mercury (crescent) and moon (crescent)
  start at 17Mar2026 06:40 PDT  b: 100.8° e: 1.6°  2.62° apart
  minsep at 17Mar2026 06:40 PDT  b: 100.8° e: 1.6°  2.62° apart
  end at 17Mar2026 06:55 PDT  b: 103.1° e: 4.2°  2.62° apart
    

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