The Minor Planet Bulletin
BULLETIN OF THE MINOR PLANETS SECTION OF THE ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS


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The Minor Planet Bulletin is the journal for almost all amateurs and even some professionals for publishing asteroid photometry results, including lightcurves, H-G parameters, color indexes, and shape/spin axis models. It is considered to be a refereed journal by the SAO/NASA ADS. All MPB papers are indexed in the ADS.

Print subscriptions are no longer available to individuals. Institutions (e.g., college libraries) can still obtain print copies via a special subscription. See details in MPB 37-4 or contact the editor, Richard Binzel.

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Please send a check, drawn on a U.S. bank and payable in U.S. funds, to "Minor Planet Bulletin" and send it to:

Derald D. Nye
Minor Planet Bulletin
10385 E. Observatory Drive
Corona de Tucson, AZ 85641-2309


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Issue 33-4 (2006 Oct-Dec)
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Additional lightcurves of 165 Loreley
Pages 77
Pilcher, Frederick; Jardine, Don C.
2006MPBu...33...77P    Download PDF

Lightcurves of 165 Loreley obtained on three nights in early 2006 can be satisfied by several different rotation periods, one of which, 7.224 hours, is consistent with the tabulated value, with an amplitude of 0.17 mag.

CCD photometry of asteroids 276 Adelheid, 1490 Limpopo, and 2221 Chilton from the Universidad de Monterrey Observatory
Pages 78-79
Sada, Pedro V.
2006MPBu...33...78S    Download PDF

CCD photometry of asteroids 276 Adelheid, 1490 Limpopo, and 2221 Chilton obtained at the Universidad de Monterrey Observatory during August and September 2005 is reported. A synodic rotation period of 6.315±0.005 hours and an amplitude of 0.17±0.03 magnitudes is confirmed for Adelheid from five nights of observations. The resulting synodic rotation period and amplitude for Limpopo is 6.426±0.003 hours and 0.16±0.03 magnitudes from three nights of observations. Chilton was observed on four nights and exhibits a synodic rotation period of 7.445±0.015 hours and an amplitude of 0.20±0.05 magnitudes, though the period is uncertain due to the faintness of the asteroid in the images. Another possible solution for the rotation period of Chilton is 8.63±0.02 hours.

Brightness variation of the asteroid (35690) 1999 CT21
Pages 80-81
Pietrukowicz, P.; Michalowski, T.; Pych, W.; Kaluzny, J.; Thompson, I. B.
2006MPBu...33...80P    Download PDF

The asteroid (35690) 1999 CT21 was incidentally recorded on 29 and 30 July 2000 UT during the observations of the globular cluster M22. These data have allowed determination of the synodic rotation period to be 9.06 ± 0.02 hours. On 29 July 2000 the reduced V magnitude, the amplitude of the light variation and color index B-V were 14.82 ± 0.01, 0.60 ± 0.02 and 0.7 ± 0.1 mag, respectively. Dimensions and the biaxial ellipsoid models of this asteroid have been obtained for two assumed taxonomic classes (C and S).

Asteroid lightcurve analysis at the Palmer Divide Observatory - February - March 2006
Pages 82-84
Warner, Brian D.
2006MPBu...33...82W    Download PDF

Lightcurves for 15 asteroids were obtained at the Palmer Divide Observatory from February through mid-March 2006: 353 Ruperto-Carola, 486 Cremona, 535 Montague, 1319 Disa, 1326 Losaka, 1396 Outeniqua, 1653 Yakhontovia, 1854 Skvortsov, 1889 Pakhmutova, 2288 Karolinum, 2725 David Bender, 4490 Bambery, (6159) 1991 YH, (6393) 1990 HM1, and 6859 Datemasamune.

Asteroid lightcurve analysis at the Palmer Divide Observatory - March - June 2006
Pages 85-88
Warner, Brian D.
2006MPBu...33...85W    Download PDF

Lightcurves for 22 asteroids were obtained at the Palmer Divide Observatory from early March through early June 2006: 216 Kleopatra, 314 Rosalia, 618 Elfriede, 633 Zelima, 1064 Aethusa, 1115 Sabauda, 1320 Impala, 1384 Kniertje, 1546 Izsak, 1592 Mathieu, 2047 Smetana, 3318 Blixen, 3642 Frieden, 4077 Asuka, 4985 Weir, 4091 Lowe, 5222 Ioffe, 6296 Cleveland, 5430 Luu, (7563) 1988 BC, 21022 Ike, and (68950) 2002 QF15.

Asteriod lightcurve analysis at Hunters Hill Observatory and collaborating stations - autumn 2006
Pages 89-91
Higgins, David; Pravec, Petr; Kusnirak, Peter; Galad, Adrian; Kornos, Leos; Pray, Donald; Koff, Robert A.
2006MPBu...33...89H    Download PDF

Lightcurves for the following asteroids were obtained at Hunters Hill Observatory and one or more collaborating stations: 2195 Tengstrom, 2501 Lohja, 4580 Child, 9423 Abt, (9992) 1997 TG19, (10909) 1997 XB10, (12271) 1998 RC2, (12290) 1991 LZ, 12317 MadiCampbell, (31383) 1998 XJ94, (33116) 1998 BO12, (34442) 2000 SS64.

Book Review
Pages 91
Binzel, Richard P.
2006MPBu...33...91B    Download PDF

A Practical Guide to Lightcurve Photometry and Analysis (Second Edition) by Brian D. Warner. Springer Science + Business Media, 2006. 298 pages, 110 illustrations. ISBN: 0-387-29365-5. (Price $39.95, available at www.springer.com)

Lightcurve analysis of asteroids 53, 698, 1016, 1523, 1950, 4608, 5080 6170, 7760, 8213, 11271, 14257, 15350 and 17509
Pages 92-95
Pray, Donald P.; Galad, Adrian; Gajdos, Stefan; Vilagi, Jozef; Cooney, Walt; Gross, John; Terrel, Dirk; Higgins, David; Husarik, Marek; Kusnirak, Peter
2006MPBu...33...92P    Download PDF

Lightcurve period and amplitude results are reported for fourteen asteroids observed at Carbuncle Hill Observatory and other sites during October 2005 - May 2006. The following synodic periods and amplitudes were determined: 53 Kalypso, 18.075±0.005hr, 0.14mag; 698 Ernestina, 5.0363±0.0005hr, 0.30mag; 1016 Anitra, 5.928±0.001hr, 0.30mag; 1523 Pieksamaki, 5.3202±0.0005hr, 0.50mag; 1950 Wempe, 16.788±0.001hr, 0.98mag; 4608 Wodehouse, 13.95±0.01hr, 0.10mag; 5080 Oja, 7.2220±0.0004hr, 0.37mag; 6170 Levasseur, 2.6529±0.0003hr, 0.14mag; (7760) 1990 RW3, 25.940±0.005hr, 0.32mag; (8213) 1995 FE, 2.911±0.001hr, 0.38mag; (11271) 1988 KB, 6.326±0.001hr, 0.36mag; (14257) 2000 AR97, 13.584±0.002hr, 0.67mag; 15350 Naganuma, 2.5835±0.0001hr, 0.20mag; 17509 Ikumadan, 5.788±0.001hr, 0.40mag.

The lightcurve of main-belt asteroid 774 Armor
Pages 95
Warner, Brian D.; Higgins, David; Bennett, Thomas; Fauerbach, Michael
2006MPBu...33...95W    Download PDF

Observations spanning more than two months reveal the synodic period of the main-belt asteroid 774 Armor to be 25.162±0.002hr with an amplitude of 0.37±0.02mag. This study affirmed the importance of both collaboration and having data from widely separated locations.

Lightcurves analysis of 10 asteroids from Leura Observatory
Pages 96-99
Oey, Julian
2006MPBu...33...96O    Download PDF

Lightcurves and period solutions for 10 asteroids were obtained in the first six months of 2006. 171 Ophelia 6.6666±0.0002hr 0.50±0.02mag, 291 Alice 4.313±0.002hr 0.20±0.03mag, 293 Brasilia 8.173±0.002hr 0.20±0.03mag, 683 Lanzia 8.631±0.001hr 0.20±0.02mag, 710 Gertrud 8.288±0.002hr 0.30±0.02mag, 762 Pulcova 5.8403±0.0005hr 0.20±0.02mag, 2104 Toronto 8.9669±0.0002hr 0.35±0.02mag, 7360 Moberg 4.699±0.001hr 0.38±0.01mag, (35369) 1997 UJ11 2.48±0.09hr 0.15±0.05mag, (85804) 1998 WQ5 3.0089±0.0001hr 0.35±0.10mag.

The lightcurve of Hungaria asteroid 6384 Kervin
Pages 99
Warner, Brian D.; Pray, Donald P.; Pravec, Petr
2006MPBu...33...99W    Download PDF

Hungaria asteroid 6384 Kervin is found to have a synodic lightcurve period of 3.6203±0.0003hr and amplitude 0.10±0.02mag. The period and size are such that the asteroid was a binary candidate. No signs of mutual events were seen; however, initial runs showed slight, but eventually unsubstantiated, indications of a secondary period. Observations at other viewing aspects are encouraged to rule out a binary nature completely.

Asteroid lightcurve photometry from Santana and GMARS observatories - winter and spring 2006
Pages 100-101
Stephens, Robert D.
2006MPBu...33..100S    Download PDF

Lightcurve period and amplitude results from Santana and GMARS Observatories are reported for 2006 January - June. 58 Concordia (9.895±0.002hr and 0.10mag.), 268 Adorea (7.800±0.002hr and 0.16mag.), 293 Brasilia (8.17±0.01hr and 0.20mag.), (6185) 1997 YD (21.05±0.01hr and 0.34mag.), (19204) 1992 ME (3.17±0.01hr and 0.04mag.)

Analysis of the lightcurve of 71 Niobe
Pages 102-103
Warner, Brian D.; Shepard, Michael K.; Harris, Alan W.; Pravec, Petr; Crawford, Greg; Husarik, Marek
2006MPBu...33..102W    Download PDF

The main-belt asteroid, 71 Niobe, was the target of radar observations in early 2006 by Shepard. Supporting optical observations (lightcurve) were requested. Initial optical observations by Warner indicated the previously reported period of 14.38h (Harris 1989a) may have been incorrect. Follow up observations, optical and radar, showed that a synodic period of 35.6±0.1h is more likely correct. The observed amplitude is 0.22±0.02mag.

Lightcurve analysis of 1304 Arosa
Pages 103
Fauerbach, Michael; Bennett, Thomas; Behrend, Raoul; Bernasconi, Laurent; Casulli, Silvano
2006MPBu...33..103F    Download PDF

The main-belt asteroid 1304 Arosa was observed in late 2005 and early 2006 in a collaborative effort by observers in France, Italy and the United States. A period of 7.7478±0.0001hr with an amplitude 0.375±0.011 mag was derived.

Period determination for 1484 Postrema
Pages 103-104
Julian, William M., II
2006MPBu...33..103J    Download PDF

Asteroid 1484 Postrema was observered on 5 nights in April thru May 2006. The lightcurve period and amplitude were 12.1923±0.0005hr and 0.20±0.05mag.

The lightcurves of 1043 Beate and 1186 Turnera
Pages 104-105
Warner, Brian D.; Higgins, David
2006MPBu...33..104W    Download PDF

Observations of 1043 Beate in April 2006 found the synodic period to be 22.05±0.10hr or, possibly, 44.10±0.10hr. The lightcurve amplitude was 0.32±0.02mag. The synodic period for 1186 Turnera was determined to be 12.066±0.004hr based on observations also obtained in April 2006; its lightcurve amplitude was 0.34±0.02mag. With both having adopted periods nearly commensurate with 24hr, the importance of collaboration among observers at different longitudes was again demonstrated. This was particularly true in the case of 1043 Beate, where combined runs allowed forming a single long run on more than one occasion, and so provided additional clues in finding a solution.

Lightcurve analysis of asteroids 453 Tea and 454 Mathesis
Pages 106-107
Licchelli, Domenico
2006MPBu...33..105L    Download PDF

CCD images recorded December 2005 to February 2006 yielded lightcurves and periods for two asteroids: 453 Tea 6.812±0.001hr, 0.30±0.02mag and 454 Mathesis, 8.378±0.001hr, 0.29±0.02mag.

Definition of a planet: Prague 2006 IAU resolutions
Pages 106-107
Binzel, Richard P.
2006MPBu...33..106B    Download PDF

For members of the ALPO Minor Planets Section and readers of the Minor Planet Bulletin, it is useful to review the outcome and implications of the resolutions passed at the XXVIth General Assembly of the International Astronomical Union (IAU) held August 14-25 in Prague.

Lightcurve photometry opportunities October - December 2006
Pages 107-109
Warner, Brian D.; Harris, Alan W.; Pravec, Petr; Kaasalainen, Mikko; Benner, Lance A. M.
2006MPBu...33..107W    Download PDF

We present here four lists of “targets of opportunity” for the period 2006 October through December. The first list is those asteroids reaching a favorable apparition during this period, are <15m at brightest, and have either no or poorly constrained lightcurve parameters. By “favorable” we mean the asteroid is unusually brighter than at other times. In many cases, a favorable apparition may not come again for many years. The goal for these asteroids is to find a well-determined rotation rate, if at all possible. Don’t hesitate to solicit help from other observers at widely spread longitudes should the initial finding for the period indicated that it will be difficult for a single station to find the period.


copyright©2017 Brian D. Warner. Funding to support this web site is provided by NASA grant NSSC 80NSSC18K0851