Image Details
 
                    Caption: Figure 16.
Plots of various absolute magnitudes (a)–(d) and colors (e)–(h) as a function of near-infrared spectral type. Only members of the 20 pc census are shown, and plots (a)–(d) show only the subset of 20 pc objects having parallaxes measured to better than 12.5%. Plots of Mch2, JMKO − ch2, and H − ch2 are supplemented with W2 magnitudes when ch2 magnitudes are not available, as described in Section 7.4. Polynomial fits that exclude known young objects (pink circles, Section 7.1), subdwarfs (blue squares, Section 7.2), and multiple systems (yellow diamonds, Section 7.3) are shown in brown and described in Table 13.
© 2021. The American Astronomical Society. All rights reserved.