• DOI:10.1051/0004-6361/201935274
• Corpus ID: 102350991

Long-term photometric monitoring of the dwarf planet (136472) Makemake

@article{Hromakina2019LongtermPM,
  title={Long-term photometric monitoring of the dwarf planet (136472) Makemake},
  author={T. A. Hromakina and Irina Belskaya and Yurij Krugly and Vasilij Shevchenko and Jos{\'e} Luis Ortiz and Pablo Santos-Sanz and Ren{\'e} Duffard and Nicol{\'a}s Morales and Audrey Thirouin and Raguli Inasaridze and V. R. Ayvazian and Vasili Zhuzhunadze and D. Perna and Vasiliy Rumyantsev and Inna Reva and Alexander V Serebryanskiy and Aleksandr V. Sergeyev and Igor Evgenevich Molotov and Viktor Anatolevich Voropaev and Sergey Velichko},
  journal={Astronomy \& Astrophysics},
  year={2019}
}

• T. Hromakina, I. Belskaya, +17 authors S. Velichko
• Published 7 April 2019
• Physics, Geology
• Astronomy & Astrophysics

Aims. We studied the rotational properties of the dwarf planet Makemake.
Methods. The photometric observations were carried out at different telescopes between 2006 and 2017. Most of the measurements were acquired in BVRI broad-band filters of a standard Johnson-Cousins photometric system.
Results. We found that Makemake rotates more slowly than was previously reported. A possible lightcurve asymmetry suggests a double-peaked period of P = 22.8266 ± 0.0001 h. A small peak-to-peak lightcurve amplitude in R-filter A = 0.032 ± 0.005 mag implies an almost spherical shape or near pole-on orientation. We also measured BVRI colours and the R-filter phase-angle slope and revised the absolute magnitudes. The absolute magnitude of Makemake has remained unchanged since its discovery in 2005. No direct evidence of a newly discovered satellite was found in our photometric data; however, we discuss the possible existence of another larger satellite.