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The Minor Planet Observer
and
Palmer Divide Observatory

1659 Punkaharju (2000)

MPC Designation: 1940 YL
Lightcurves Period (h): 5.01 0.01
Amplitude (mag): 0.33 0.01
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.5m f/4.58 RC
Camera: ST-8
Exposure: 20

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2000-11-27 07:00  13.14   14.2   52.0   22.1
2000-11-28 07:00  13.16   14.4   52.1   22.1

Data Points: 218
Discovered: 1940-12-28  Turku  Y. Vaisala
Family/Group: MB-Outer
Taxonomic Class: S
Published: MPB 38, 63-65
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

MPB 28, 30-32: P = 5.01, A = 0.26, U = 3.

Remeasured images gave slightly higher amplitude but no other significant change.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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