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331 Etheridgea (1999)
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MPC Designation: |
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| Lightcurves |
Period (h): |
Long? ± |
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Amplitude (mag): |
± |
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Equipment: |
Filter: C
MagBand: R
Telescope: SCT 25cm f/6.5
Camera: ST-7
Exposure: 90 |
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Obs. Details |
Date E Mag Phase PABL PABB
1999-10-15 07:00 13.27 2.5 16.0 -0.7
1999-10-28 07:00 13.62 7.9 16.3 -0.3
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Data Points: |
152 |
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Discovered: |
1892-04-01 Nice A. Charlois |
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Family/Group: |
MB-Outer |
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Taxonomic Class: |
C |
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Published: |
MPB 37, 127-130 |
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NOTES: |
Unless otherwise stated, the "Reduced Magnitudes" in the plots are
Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)Presuming the nightly calibrations were correct, the data provide any number of solutions. If the two sessions are forced to overlay, a number of solutions, less than 24 h, are still possible.
Originally in MPB 30, 61-64 with P = 6.82, A = 0.05, U = 2. Behrend reports P - 13.54 but with U = 1. |
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Contents © 2011 Brian D. Warner / Palmer Divide Observatory |
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