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The Minor Planet Observer
and
Palmer Divide Observatory

756 Lilliana (2001)

MPC Designation: 1908 DC
Lightcurves Period (h): 9.38 0.02
Amplitude (mag): 0.32 0.02
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.5m f/8.1 R/C
Camera: FLI KAF-1001E
Exposure: 30

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2001-07-15 07:00  14.21   11.2  276.9   24.0
2001-07-17 07:00  14.24   11.5  276.9   24.0

Data Points: 128
Discovered: 1908-04-26  Taunton  J.H. Metcalf
Family/Group: MB-Outer
Taxonomic Class: C (Assumed)
Published: Web only
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Period analysis after remeasuing original images using 2MASS conversion for calibration was forced to fit near solution found in 2007 (MPB 35, 56-60).
By themselves, the data provide numerous solutions in the range of 4-12 hours. Using the half-period approach, a solution of 8.52 h is favored by the slightest of margins over 9.36 h.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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