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
29Jan2026 05:50:12 PST	jupiter	296.7	3.1	642543	1.00	158.1	-17.1
    

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


% sl_smrs 37.8 -122.4
29Jan2026:
Sunrise:  07:16 PST (112.1°)
Sunset:   17:30 PST (248.1°)
Moonrise: 13:54 PST (53.3°)
Moonset:  04:45 PST (306.7°)
    

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


% sl_data -start 29Jan2026 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
venus (full) and mercury (full)
  start at 30Jan2026 17:55 PST  b: 248.1° e: 0.5°  1.08° apart
  minsep at 30Jan2026 17:55 PST  b: 248.1° e: 0.5°  1.08° apart
  end at 30Jan2026 17:55 PST  b: 248.1° e: 0.5°  1.08° apart
venus (full) and mercury (full)
  start at 01Feb2026 18:00 PST  b: 249.1° e: 0.9°  1.86° apart
  minsep at 01Feb2026 18:00 PST  b: 249.1° e: 0.9°  1.86° apart
  end at 01Feb2026 18:00 PST  b: 249.1° e: 0.9°  1.86° apart
venus (full) and mercury (full)
  start at 02Feb2026 18:00 PST  b: 249.1° e: 1.6°  2.20° apart
  minsep at 02Feb2026 18:00 PST  b: 249.1° e: 1.6°  2.20° apart
  end at 02Feb2026 18:00 PST  b: 249.1° e: 1.6°  2.20° apart
venus (full) and mercury (full)
  start at 03Feb2026 18:05 PST  b: 250.0° e: 1.3°  2.68° apart
  minsep at 03Feb2026 18:05 PST  b: 250.0° e: 1.3°  2.68° apart
  end at 03Feb2026 18:05 PST  b: 250.0° e: 1.3°  2.68° apart
    

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