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Astronomy with an online telescope

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Picture of Dennis Ramirez

Dennis Ramirez Post 1

6 Jan 2021, 20:48

folded curve

I would like to ask why most of the folded curves are ploted 

in a graph of flux v phase? But that is not the case in the one we use.

I also would like to ask how long can I use the remote telescope after

 finishing the course?

Tnak you Dennis

Picture of Alan Cayless

Alan Cayless Post 2 (unread) in reply to 1

7 Jan 2021, 09:11 Edited by the author on 7 Jan 2021, 09:11

Hi Dennis;

The normal plot has each observation plotted against the date - but this means that the plot is spread out over many periods of the variable star.  The folded plot combines these into a single period, overlaying the data points to make an average curve for a single orbit of the stars.  The "phase" of a light curve refers to the time from the start of each period and on our plots we plot this in terms of days from the start of each period.

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