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
13Dec2025 07:05:25 PST	moon	175.4	44.6	395	0.33	69.7	-2.5
13Dec2025 07:05:25 PST	mercury	128.0	14.0	169685	0.76	19.5	-2.5
13Dec2025 07:05:25 PST	venus	120.7	2.3	254038	1.00	5.8	-2.5
13Dec2025 07:05:25 PST	jupiter	276.9	27.6	649236	1.00	148.1	-2.5
    

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


% sl_smrs 37.8 -122.4
13Dec2025:
Sunrise:  07:17 PST (119.2°)
Sunset:   16:51 PST (240.8°)
Moonrise: 01:27 PST (97.1°)
Moonset:  13:02 PST (259.5°)
    

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