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
21Jun2025 09:44:24 PDT	sun	92.7	43.8	152029	1.00	0.0	43.8
21Jun2025 09:44:24 PDT	moon	189.6	69.6	359	0.19	51.8	43.8
21Jun2025 09:44:24 PDT	mercury	78.8	24.6	156096	0.63	22.3	43.8
21Jun2025 09:44:24 PDT	venus	167.0	65.7	129273	0.60	44.7	43.8
21Jun2025 09:44:24 PDT	jupiter	91.4	41.9	920918	1.00	2.1	43.8
21Jun2025 09:44:24 PDT	saturn	229.3	38.3	1430236	1.00	89.1	43.8
    

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


% sl_smrs 37.8 -122.4
21Jun2025:
Sunrise:  05:48 PDT (59.0°)
Sunset:   20:35 PDT (301.0°)
Moonrise: 02:24 PDT (69.5°)
Moonset:  16:49 PDT (294.9°)
    

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


% sl_data -start 21Jun2025 -duration 7d -interval 5m -planets -refraction 37.8 -122.4 | sl_conjunctions
mercury (half) and moon (crescent)
  start at 26Jun2025 22:00 PDT  b: 297.1° e: 2.4°  2.65° apart
  minsep at 26Jun2025 22:10 PDT  b: 298.6° e: 0.8°  2.60° apart
  end at 26Jun2025 22:10 PDT  b: 298.6° e: 0.8°  2.60° apart
    

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