Figure 2 from An Ancient Extrasolar System with Five Sub-Earth-size Planets

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An Ancient Extrasolar System with Five Sub-Earth-size Planets

Authors: T. L. Campante, T. Barclay, J. J. Swift, D. Huber, V. Zh. Adibekyan, W. Cochran, C. J. Burke, H. Isaacson, E. V. Quintana, G. R. Davies, V. Silva Aguirre, D. Ragozzine, R. Riddle, C. Baranec, S. Basu, W. J. Chaplin, J. Christensen-Dalsgaard, T. S. Metcalfe, T. R. Bedding, R. Handberg, D. Stello, J. M. Brewer, S. Hekker, C. Karoff, R. Kolbl, N. M. Law, M. Lundkvist, A. Miglio, J. F. Rowe, N. C. Santos, C. Van Laerhoven, T. Arentoft, Y. P. Elsworth, D. A. Fischer, S. D. Kawaler, H. Kjeldsen, M. N. Lund, G. W. Marcy, S. G. Sousa, A. Sozzetti, and T. R. White

Campante et al. 2015 The Astrophysical Journal 799 170.

Provider: AAS Journals

Caption: Figure 2.

Kepler-444 resolved into two components by Robo-AO. This linearly scaled image was obtained using a long-pass filter (LP600) that approximately matches the Kepler bandpass at the redder visible wavelengths. The magnitude difference between the two components was measured to be Δm_LP600 = 3.51 ± 0.02. The secondary lies roughly to the west (to the right in the image), at a position angle of 251° ± 2° with respect to the primary.

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