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--(87) Sylvia, Romulus, and Remus --discovery and notes:

Primary discovered1866 May 16from Madras, Indiaby N. R. Pogson.Alternate designation(s): A909 GA.Permanent number assigned 1866 May 28.

Named 1866 May 28 for the Roman mythological character and/or Sylvie Petiaux-Hugo Flammarion.

Second component discovered2001 Feb 18 by M. E. Brown and J. L. Margotusingadaptive optics telescope observations from W. M. Keck II Telescope, Mauna Kea, Hawaii, USA.Announced2001 Feb 23 [B01a].Provisional designation S/2001 (87) 1.Permanent designation I Romulus, assigned 2005 Aug 11; named for the Roman mythological character [M05h].

Third component discovered2004 Aug 09 by F. Marchis, P. Descamps, D. Hestroffer, and J. Berthierusingadaptive optics telescope observations from Very Large Telescope, ESO, Cerro Paranal, Chile.Announced2005 Aug 11 [M05a].Provisional designation S/2004 (87) 1.Permanent designation II Remus, assigned 2005 Aug 11; named for the Roman mythological character [M05h].

--Links, more technical:

• IAUC 8582.
• IAUC 7588.
• IAUC 7590.
• 87 Sylvia and S/2001 (87) 1.
• Discovery and characterization of three binary asteroids 2000 DP107, 2000 UG11, and 87 Sylvia (.doc).

--Links, less technical:

• Rubble-Pile Minor Planet Sylvia and Her Twins.
• Planetary Astronomy Research News: Discovery of a satellite to the asteroid (87) Sylvia.
• SpaceDaily: Adaptive optics system reveals new asteroidal satellite.

--Links to ADS abstracts:

• Marchis, F., Ruffio, J., Vachier, F., & Berthier, J. 2013, AGU Fall Meeting AbstractsComponent-resolved near-infrared spectra of multiple asteroid systems
• Beauvalet, L., Marchis, F., & Ruffio, J. 2013, AGU Fall Meeting AbstractsConstraining the inner structure of asteroids in multiple systems
• Noll, Keith S., Ryan, E. L., Grundy, W. M., & Benecchi, S. D. 2013, AAS/Division for Planetary Sciences Meeting AbstractsUltra-Slow Rotating Outer Main Belt and Trojan Asteroids: Search for Binaries
• Marchis, Franck, Berthier, J., Vachier, F., Durech, J., Descamps, P., & Carry, B. 2013, AAS/Division for Planetary Sciences Meeting AbstractsNew insights on the main-belt triple asteroid (87) Sylvia
• Berthier, J., Frappa, E., Klotz, A., Lecacheux, J., Descamps, P., Vachier, F., Marchis, F., Bendjoya, P., Abe, L., Suarez, O., Tanga, P., Devogele, M., Dubreuil, P., & Preston, S. 2013, Central Bureau Electronic TelegramsDetection of a Stellar Occultation by (87) Sylvia I (Romulus)
• Boldrin, Luiz Augusto, Winter, O. C., & Vieira Neto, E. 2012, AAS/Division for Planetary Sciences Meeting AbstractsOn The Attitude Dynamics Of Central Bodies Of Triples Systems 87 Sylvia, 45 Eugenia And 2001sn263.
• Vereshchagina, I., Sokov, E., Gorshanov, D., Devyatkin, A., Romas, E., L'vov, V., Slesarenko, V., Rastegaev, D., Balega, Yu., Maximov, A., Diachenko, V., Malogolovec, E., Kouprianov, V., & Naiden, Ya. 2012, European Planetary Science Congress 2012Investigation of binary asteroids and NEOs
• Fang, Julia, Margot, Jean-Luc, & Rojo, Patricio 2012, The Astronomical JournalOrbits, Masses, and Evolution of Main Belt Triple (87) Sylvia
• Frouard, Julien & Compère, Audrey 2012, IcarusInstability zones for satellites of asteroids: The example of the (87) Sylvia system
• Vereshagina, I. A., Devyatkin, A. V., Gorshanov, D. L., & Sokov, Ye. N. 2012, Fifty years of Cosmic Era: Real and Virtual Studies of the Sky. Conference of Young Scientists of CIS CountriesPhotometric research of binary and triple asteroids with the use automatic telescopes of Pulkovo Observatory
• Marchis, F., Emery, J. P., Enriquez, J. E., Descamps, P., Berthier, J., Vachier, F., & Durech, J. 2011, AGU Fall Meeting AbstractsDetailed Pictures of Multiple Asteroid Systems in the Main-Belt
• Frouard, J. & Compère, A. 2011, EPSC-DPS Joint Meeting 2011Mean-motion and secular resonances in the triple asteroidal system 87 Sylvia
• Vereshchagina, I. A. 2011, ArXiv e-printsInvestigation of multiple asteroids 2006 VV2, (45) Eugenia, (90) Antiope, (762) Pulcova, (87) Sylvia, 137170 (1999 HF1)
• Marchis, Franck, Berthier, J., Burns, K. J., Descamps, P., Durech, J., Emery, J. P., Enriquez, J. E., Lainey, V., Reiss, A. E., & Vachier, F. 2010, Bulletin of the American Astronomical SocietyCharacteristics of Known Triple Asteroid Systems in the Main Belt
• Cabo Winter, Othon, Boldrin, L. G., Vieira Neto, E., & Gomes, R. 2010, Bulletin of the American Astronomical SocietyThe Contribution Of The Oblateness Of An Asteroid On The Orbital Evolution Of Its Satellites
• Vokrouhlický, David, Nesvorný, David, Bottke, William F., & Morbidelli, Alessandro 2010, The Astronomical JournalCollisionally Born Family About 87 Sylvia
• Sharma, Ishan 2010, IcarusEquilibrium shapes of rubble-pile binaries: The Darwin ellipsoids for gravitationally held granular aggregates
• Vereshchagina, I. A., Gorshanov, D. L., Devyatkin, A. V., & Papushev, P. G. 2009, Solar System ResearchSome specific features of light curves of (39) Laetitia, (87) Sylvia, (90) Antiopa, and 2006 VV2 asteroids
• Marchis, F., Macomber, B., Berthier, J., Vachier, F., & Emery, J. P. 2009, International Astronomical Union CircularS/2009 (93) 1 and S/2009 (93) 2
• Winter, O. C., Boldrin, L. A. G., Vieira Neto, E., Vieira Martins, R., Giuliatti Winter, S. M., Gomes, R. S., Marchis, F., & Descamps, P. 2009, Monthly Notices of the Royal Astronomical SocietyOn the stability of the satellites of asteroid 87 Sylvia
• Lin, Chi-Long, Zhang, Zhi-Wei, Chen, W. P., King, Sun-Kun, Lin, Hung-Chin, Wang, J.-H., Mondal, S., Alcock, C., Axelrod, T., Bianco, F. B., Byun, Y.-I., Coehlo, N. K., Cook, K. H., Dave, R., de Pater, I., Descamps, P., Lehner, M. J., Kim, D.-W., Lee, T., Lissauer, J. J., Marshall, S. L., Porrata, R., Protopapas, P., Rice, J. A., Schwamb, M. E., Wang, S.-Y., & Wen, C.-Y. 2009, Publications of the Astronomical Society of the PacificA Close Binary Star Resolved from Occultation by 87 Sylvia
• Storrs, Alex, Davis, M., Richmond, M., & Makhoul, K. 2009, Bulletin of the American Astronomical SocietyImages of Asteroidal Companions from the Hubble Space Telescope
• Drummond, Jack & Christou, Julian 2008, IcarusTriaxial ellipsoid dimensions and rotational poles of seven asteroids from Lick Observatory adaptive optics images, and of Ceres
• Marchis, F., Descamps, P., Berthier, J., & Emery, J. P. 2008, International Astronomical Union CircularS/2008 (216) 1 and S/2008 (216) 2
• Marchis, Franck, Descamps, P., Berthier, J., Hestroffer, D., Vachier, F., & Baek, M. 2007, Bulletin of the American Astronomical SocietyMutual Orbits, Bulk Densities, Formation and Evolution of Multiple Visualized Main-Belt Asteroids
• Drummond, Jack D. & Christou, J. 2006, Bulletin of the American Astronomical SocietySizing up Asteroids at Lick Observatory with Adaptive Optics
• Noll, K. S. 2006, AGU Fall Meeting AbstractsObservational Constraints on n>2 Multiples in the Kuiper Belt
• Marchis, F., Kaasalainen, M., Hom, E. F. Y., Berthier, J., Enriquez, J., Hestroffer, D., Le Mignant, D., & de Pater, I. 2006, IcarusShape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey
• Hestroffer, Daniel, Tanga, P., Cellino, A., Kaasalainen, M., Torppa, J., Marchis, F., Richardson, D. C., Elankumaran, P., Berthier, J., Colas, F., & Lounis, S. 2006, Bulletin of the American Astronomical SocietyHST/FGS High Angular Resolution Observations of Binary Asteroids
• Aslan, Z., Gumerov, R. I., Hudkova, L. A., Ivantsov, A. V., Khamitov, I., & Pinigin, G. I. 2006, IAU Joint DiscussionPreliminary Results in Asteroid Mass Determination
• Marchis, Franck, Berthier, Jerome, Descamps, Pascal, & Hestroffer, Daniel 2006, NOAO ProposalRefining the Orbits of Known Main-Belt Binary Asteroids
• 2006, European Southern Observatory Press ReleaseESO PR Highlights in 2005
• 2005, The MessengerA Triple Asteroid System
• Proust, Dominique 2005, Bulletin de l'Association Francaise d'Observateurs d'Etoiles VariablesNouvelles de l'astronomie
• Savov, E. P. 2005, ArXiv Physics e-printsOrbital Data Confirms Dynamic Fractal Firework Universe Having 3D-spiral Code
• Marchis, Franck, Descamps, Pascal, Hestroffer, Daniel, & Berthier, Jérome 2005, NatureDiscovery of the triple asteroidal system 87 Sylvia
• Marchis, F., Descamps, P., Hestroffer, D., Berthier, J., Brown, M. E., & Margot, J.-L. 2005, International Astronomical Union CircularSatellites of (87) Sylvia
• 2005, European Southern Observatory Press ReleaseRubble-Pile Minor Planet Sylvia and Her Twins
• Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System87 Sylvia CCD Spectrum
• Hestroffer, D. J. G. J. 2004, Bulletin of the American Astronomical SocietyOn Equilibrium Shapes among Binary Asteroids
• Storrs, A., Makhoul, K., Wells, E., Gaffey, M., Vilas, F., Landis, R., Wood, C., & Zellner, B. 2002, Bulletin of the American Astronomical SocietyImaging Asteroidal Companions with the Hubble Space Telescope (HST)
• Margot, J. L. & Brown, M. E. 2001, Bulletin of the American Astronomical SocietyDiscovery and characterization of binary asteroids 22 Kalliope and 87 Sylvia
• Consolmagno, G. J. & Britt, D. T. 2001, Bulletin of the American Astronomical SocietyClassifying Asteroids by Macroporosity
• Storrs, A., Vilas, F., Landis, R., Wells, E., Woods, C., Zellner, B., & Gaffey, M. 2001, International Astronomical Union CircularS/2001 (87) 1
• Brown, M. E., Margot, J. L., Keck, W. M., II, de Pater, I., & Roe, H. 2001, International Astronomical Union CircularS/2001 (87) 1
• Prokof'eva, V. V., Demchik, M. I., Karachkina, L. G., & Gaftonyukm, N. M. 1999, Solar System ResearchPhotometric Observations of the Asteroid 87 Sylvia in 1989 and 1992-1993 at the Crimean Astrophysical Observatory and Their Fourier Analysis
• Karachkina, L. G., Prokof'eva, V. V., & Gaftonyuk, N. M. 1999, Solar System ResearchOn the Forced Precession of Asteroid 87 Sylvia
• Prokof'eva, V. V., Demchik, M. L., & Karachkina, L. G. 1995, Astronomical and Astrophysical TransactionsPhotometric Evidences for the Binary Asteroids 87 Sylvia and 423 Diotima
• Prokof'eva, V. V. & Demchik, M. I. 1994, Astronomy LettersFourier analysis of simultaneous BVR observations of the asteroid 87 Sylvia and its duplicity
• Prokof'eva, V. V., Demchik, M. I., Karachkina, L. G., & Pavlenko, E. P. 1992, Astronomicheskii VestnikAsteroid photometry and colorimetry using a digital TV system
• Prokof'eva, V. V. & Demchik, M. I. 1992, Astronomicheskij TsirkulyarAsteroid 87 Sylvia is binary.
• Blanco, C., di Martino, M., Gonano, M., Jaumann, R., & Mottola, S. 1989, Memorie della Societa Astronomica ItalianaCCD observations of minor planets
• Hamilton Brown, R. & Morrison, D. 1984, IcarusDiameters and albedos of thirty-six asteroids
• Milani, A. & Nobili, A. M. 1983, Asteroids, Comets, and MeteorsDynamical instabilities in the outer asteroidal belt
• Schober, H. J. & Surdej, J. 1979, Astronomy and Astrophysics Supplement SeriesUBV photometry of the asteroids 9 Metis, 87 Sylvia and 247 Eukrate during their oppositions in 1978 with respect to lightcurves
• McDonald, Sophia L. & Steel, Thomas B., Jr. 1952, The Astronomical JournalRepresentations of observations of thirty-four minor planets belonging to a group which includes the group one-half.
• Hiltner, W. A. 1948, The Astronomical JournalThe light curves of two Wolf-Rayet stars in Cepheus.
• Oltramare 1888, Bulletin Astronomique, Serie IMémoires et Observations. Éphéméride de la planète Sylvia 87, pour l'opposition de 1888
• Ventosa, V. 1881, Astronomische NachrichtenObservations de la petite planète (87) Sylvia
• Peters, C. F. W. 1868, Astronomische NachrichtenBahnbestimmung des Planeten (87) Sylvia. Von Dr. C. F. W. Peters
• Peters, Karl Friedrich Wilhelm 1868, Gottingen, Druck der Deiterichschen univ.-buchdruckerei W. F. Kaestner, 1868.Bahnbestimmung der (87) Sylvia ...
• Peters, C. F. W. 1867, Astronomische NachrichtenElemente der Sylvia (87), von C. F. W. Peters
• Pogson, M. 1866, Astronomische NachrichtenEntdeckung eines Planeten (87) Sylvia durch M. Pogson
• Pogson, Norman 1866, Monthly Notices of the Royal Astronomical SocietyMinor Planet 87 Sylvia

©2001-2007, 2014by Wm. Robert Johnston.
Last modified21 September 2014.
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