What is meant in the star tables by negative parallaxes?

Subject: What is meant in the star tables by negative parallaxes?

Date: Thu Aug 16 13:30:27 2001
Posted by Scott
Grade level: teacher/prof School: NIMA College
City: St. Louis State/Province: MO Country: USA
Area of science: Astronomy
ID: 997983027.As

Message:


I've noticed im many star chart that there can exist stars that have negative 
parallaxes--i have searched high and low for answers to why parallax can be 
negative--positive parallaxes make mathematical sense to me--how can an object 
subtend a negative angular displacement or do i have to relearn my geometry or
trigonometry?

Re: What is meant in the star tables by negative parallaxes?

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