LY Del (=TAV J2106+194)

LY Del = TAV J2106+194 = GSC 1657.1754)

This variable was discovered by Mike Collins during his nova patrol. It is an eclipsing binary with a period of 10.35 days. The time of minimum is given by MIN = JD 2450307.705+10.3526E. Primary eclipses last for over a day and are about three magnitudes deep. There is some evidence for a secondary eclipse of about 0.1 magnitudes but this is not confirmed.

To help you find the star here is a finder chart prepared by Mike Collins. These images show the variation during an eclipse.

CCD lightcurve. GIF or Postscript
Lightcurve wrapped to 10.3526d period. GIF or Postscript
Close up of the primary eclipse. GIF or Postscript

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