Observations of GSC 1874:399 in Auriga

Variabilty of the GSC 1874:399 in Auriga was discovered in 2004by J. Robertson (Arkansas Tech University)

The following observation have been performed at the request of J. Robertson.

Coordinates (2000.0)

RA 5h 48m 04s

DE 28^o 30'48"

Observation dates

JD 2453 706 (2005-12-01)

JD 2453 716 (2005-12-11)

JD 2453 733 (2005-12-28)

JD 2453 741 (2006-01-05)

JD 2453 742 (2006-01-06)

JD 2453 759 (2006-01-23)

JD 2453 760 (2006-01-24)

Observation instruments

Meade 8"LX200GPS f/10 telescope

SBIG ST-7xMEI CCD camera

Unfiltered exposures

Phase diagram

Orbital period

An orbital period of 0.250833d ± 0.000046 (6h 1m 12s ± 4s) has been calculated using ANOVA method of Peranso program (www.peranso.com).

Time of minimum

Based on observation of 2006 01 24

Used method : Kwee-van Woerden as implemented in Peranso.

Time heliocentric correction has been applied on dataset.

JD = 2453760.335794 +/- 0.000219d (+/-19sec)

References:

New Eclipsing Contact Binary System in Auriga,

Austin, S., Robertson, J, Justice, C., Campbell, T., Hoskins, J.,

      American Astronomical Society, Vol. 204, pp 510., (2004)

An Eclipsing Near Contact Short Period Binary in the Field of FS Auriga

Robertson, J., Austin, S., Campbell, T., Hoskins, J., International Bulletin of Variable Stars # 5536, (2004)

A Preliminary Study of the Cool Dwarf Interacting Eclipsing Binary HH95-79

R.T. McKenzie and others