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The Minor Planet Observer
and
Palmer Divide Observatory

860 Ursina (1999)

MPC Designation: 1917 BD
Lightcurves Period (h): 9.32 0.01
Amplitude (mag): 0.24 0.01
Equipment:

 

Filter: C
MagBand: R
Telescope: SCT 25cm f/6.5
Camera: ST-7
Exposure: 120

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
1999-10-05 07:00  13.84    7.3   10.4   15.3
1999-10-06 07:00  13.85    7.4   10.4   15.4

Data Points: 129
Discovered: 1917-01-22  Heidelberg  M. F. Wolf
Family/Group: MB-Outer
Taxonomic Class: X
Published: MPB 38, 21-23
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Originally reported in MPB 27, 4-6 with P = 9.386, A = 0.22, U = 3. THe images were remeasured with the results being a slightly shorter period and less precision.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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