pdosmall.gif (6581 bytes)

The Minor Planet Observer
and
Palmer Divide Observatory

11789 Kempowski (2009)

MPC Designation: 1977 RK
Lightcurves Period (h): 48.6 ± 0.5
Amplitude (mag): >0.45 ±
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.5m f/8.1 R/C
Camera: SBIG STL-1001E
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2009-04-21 08:00  16.48   16.8  192.8   15.6
2009-04-22 07:00  16.50   17.1  192.9   15.3
2009-04-23 06:00  16.52   17.5  193.0   15.1
2009-04-24 06:00  16.54   17.8  193.1   14.9
2009-04-29 06:00  16.65   19.7  193.6   13.7
2009-04-30 06:00  16.68   20.0  193.7   13.4

Data Points: 260
Discovered: 1977-09-05  La Silla  H.-E. Schuster
Family/Group: Hungaria
Taxonomic Class: ES (Assumed)
Published: MPB 36, 172-176
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

A period of 24.1 h cannot be formally exclused but, given the slopes of the data, it seems unlikely.

 

Contents © 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

This site is best viewed at 1024x768 and higher

This page was last updated on 16:23:55 2011-12-06 (Mountain Time)
All contents copyright (c) 2001-2011, Brian D. Warner and Bdw Publishing
Trademarks are the property of their repsective owners

Contact webmaster