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
17Apr2026 23:30:41 PDT	jupiter	278.9	26.8	799856	0.99	79.0	-36.2
    

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


% sl_smrs 37.8 -122.4
17Apr2026:
Sunrise:  06:32 PDT (76.0°)
Sunset:   19:47 PDT (284.3°)
Moonrise: 06:21 PDT (71.6°)
Moonset:  20:35 PDT (292.9°)
    

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


% sl_data -start 17Apr2026 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
saturn (full) and mars (full)
  start at 17Apr2026 05:55 PDT  b: 89.1° e: 1.4°  1.79° apart
  minsep at 17Apr2026 06:05 PDT  b: 90.7° e: 3.2°  1.79° apart
  end at 17Apr2026 06:05 PDT  b: 90.7° e: 3.2°  1.79° apart
mars (full) and mercury (gibbous)
  start at 18Apr2026 05:45 PDT  b: 89.1° e: 0.5°  2.47° apart
  minsep at 18Apr2026 06:05 PDT  b: 92.2° e: 4.2°  2.35° apart
  end at 18Apr2026 06:05 PDT  b: 92.2° e: 4.2°  2.35° apart
saturn (full) and mercury (gibbous)
  start at 18Apr2026 05:50 PDT  b: 89.8° e: 0.8°  2.66° apart
  minsep at 18Apr2026 06:05 PDT  b: 92.0° e: 3.5°  2.62° apart
  end at 18Apr2026 06:05 PDT  b: 92.0° e: 3.5°  2.62° apart
saturn (full) and mars (full)
  start at 18Apr2026 05:50 PDT  b: 88.6° e: 1.0°  1.41° apart
  minsep at 18Apr2026 06:05 PDT  b: 90.9° e: 3.8°  1.32° apart
  end at 18Apr2026 06:05 PDT  b: 90.9° e: 3.8°  1.32° apart
mars (full) and mercury (gibbous)
  start at 19Apr2026 05:45 PDT  b: 88.7° e: 0.8°  1.92° apart
  minsep at 19Apr2026 06:05 PDT  b: 91.8° e: 4.3°  1.92° apart
  end at 19Apr2026 06:05 PDT  b: 91.8° e: 4.3°  1.92° apart
saturn (full) and mercury (gibbous)
  start at 19Apr2026 05:45 PDT  b: 88.8° e: 0.1°  1.33° apart
  minsep at 19Apr2026 06:05 PDT  b: 91.9° e: 3.8°  1.31° apart
  end at 19Apr2026 06:05 PDT  b: 91.9° e: 3.8°  1.31° apart
saturn (full) and mars (full)
  start at 19Apr2026 05:45 PDT  b: 88.0° e: 0.6°  1.26° apart
  minsep at 19Apr2026 05:55 PDT  b: 89.6° e: 2.5°  1.14° apart
  end at 19Apr2026 06:05 PDT  b: 91.1° e: 4.2°  1.17° apart
mars (full) and mercury (gibbous)
  start at 20Apr2026 05:45 PDT  b: 88.3° e: 0.9°  1.56° apart
  minsep at 20Apr2026 05:55 PDT  b: 89.8° e: 2.7°  1.56° apart
  end at 20Apr2026 06:00 PDT  b: 90.6° e: 3.6°  1.64° apart
saturn (full) and mercury (gibbous)
  start at 20Apr2026 05:45 PDT  b: 88.8° e: 0.6°  0.51° apart
  minsep at 20Apr2026 05:50 PDT  b: 89.5° e: 1.4°  0.50° apart
  end at 20Apr2026 06:00 PDT  b: 91.0° e: 3.2°  0.51° apart
saturn (full) and mars (full)
  start at 20Apr2026 05:45 PDT  b: 88.2° e: 1.1°  1.14° apart
  minsep at 20Apr2026 05:55 PDT  b: 89.8° e: 3.0°  1.14° apart
  end at 20Apr2026 06:00 PDT  b: 90.5° e: 3.9°  1.20° apart
mars (full) and mercury (gibbous)
  start at 21Apr2026 05:45 PDT  b: 87.8° e: 1.1°  1.63° apart
  minsep at 21Apr2026 06:00 PDT  b: 90.2° e: 3.8°  1.53° apart
  end at 21Apr2026 06:00 PDT  b: 90.2° e: 3.8°  1.53° apart
saturn (full) and mercury (gibbous)
  start at 21Apr2026 05:45 PDT  b: 88.6° e: 0.8°  1.63° apart
  minsep at 21Apr2026 06:00 PDT  b: 90.9° e: 3.6°  1.56° apart
  end at 21Apr2026 06:00 PDT  b: 90.9° e: 3.6°  1.56° apart
saturn (full) and mars (full)
  start at 21Apr2026 05:40 PDT  b: 87.7° e: 0.8°  1.58° apart
  minsep at 21Apr2026 06:00 PDT  b: 90.8° e: 4.3°  1.58° apart
  end at 21Apr2026 06:00 PDT  b: 90.8° e: 4.3°  1.58° apart
mars (full) and mercury (gibbous)
  start at 22Apr2026 05:45 PDT  b: 87.4° e: 1.3°  1.94° apart
  minsep at 22Apr2026 06:00 PDT  b: 89.7° e: 4.0°  1.94° apart
  end at 22Apr2026 06:00 PDT  b: 89.7° e: 4.0°  1.94° apart
saturn (full) and mars (full)
  start at 22Apr2026 05:35 PDT  b: 87.2° e: 0.3°  2.12° apart
  minsep at 22Apr2026 06:00 PDT  b: 91.0° e: 4.9°  2.10° apart
  end at 22Apr2026 06:00 PDT  b: 91.0° e: 4.9°  2.10° apart
mars (full) and mercury (gibbous)
  start at 23Apr2026 05:45 PDT  b: 86.9° e: 1.5°  2.51° apart
  minsep at 23Apr2026 05:45 PDT  b: 86.9° e: 1.5°  2.51° apart
  end at 23Apr2026 06:00 PDT  b: 89.2° e: 4.2°  2.59° apart
saturn (full) and mars (full)
  start at 23Apr2026 05:35 PDT  b: 87.3° e: 0.9°  2.70° apart
  minsep at 23Apr2026 05:55 PDT  b: 90.4° e: 4.5°  2.59° apart
  end at 23Apr2026 06:00 PDT  b: 91.2° e: 5.5°  2.69° apart
    

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