Partly visible satellite found by doctor, perhaps, if not working

• Lunar phase coinciding with neap tides
• Henry Hudson's ship
• Semi-visible natural satellite
• Yoga asana that's a lunar phase
• Hudson vessel
• It's seen in the middle of a quarter
• First or last quarter in the lunar cycle

Wikipedia Word definitions in Wikipedia
The halfmoon , Medialuna californiensis , is a species of sea chub native to the Pacific coast of North America from Vancouver , British Columbia , to the Gulf of California . This species prefers rocky substrates or kelp forests , and can be found from ...