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
21Apr2026 01:19:09 PDT	jupiter	295.4	4.6	807099	0.99	76.5	-40.2
    

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


% sl_smrs 37.8 -122.4
21Apr2026:
Sunrise:  06:26 PDT (74.1°)
Sunset:   19:51 PDT (286.1°)
Moonrise: 09:33 PDT (53.6°)
Moonset:  00:22 PDT (306.4°)
    

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


% sl_data -start 21Apr2026 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
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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