Quote:
Originally Posted by RobF
Gee, would be interesting to see a graph of the sort of magnitude variations observed versus time. I didn't think it would have dimmed perceptibly so quick. Must read more on it.
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Perhaps it was the sky conditions that made it seem a bit dimmer then? Seemed a clear night.
I don't know.. I'm confused now as this is my first variable star observation.
For the last 12mths I have been trying to train myself between different star brightness for when the time comes to do some variable obs, but I could be off the path here perhaps
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Rob,
Here is a graph of the light curve for Mira.
Do you think it adds up to my obsersations?
According to the Australian Sky & Telescope Magazine (issue Nov/Dec 2009), Mira normally cycles between 3rd and 10th magnitude over a 11 month period.
I really would like some feed back from others observing Mira, so I can compare it to what I see, esp. as I'm a beginner in this field.
I have found a chart at AAVSO here to help plot the stars changes.
The comparison stars are 25,35,41 (that's mag. 2.5, 3.5, 4.1).
Steve, your image has been a great help with comparing to this chart, so again, many thanks.