British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community Member Pages Graeme Coates
Image search

XY LMi Primary minima

Image

Expand image

About this observation
Observer
Graeme Coates
Time of observation
02/03/2020 - 21:24
Object
XY LMi
Observing location
Standlake, W Oxon
Equipment
Home built 350mm Newtonian (f4.6)
SBIG ST2000XM
Astrodon V Filter
Losmandy Titan
Exposure
15sec exposures
Like This Image
Share

Data for determining ToM of the eclipsing binary XY LMi which is an EW type eclipsing binary with period 10.48535 h. 

The time of minimum appears to be -0.0542d different to the predicted minimum from the Lichtenknecker Database value - this star has a last observed minimum in that database on 11/03/2017 where the ToM was -0.0395d different to the predicted value.   

Comments

GraemeCoates's picture

https://iopscience.iop.org/article/10.1088/0004-6256/141/5/151 details this star - and has a quadratic formula for the light curve. The timing here is within 5 minutes of the predicted time using that formula.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.