Cococubed.com Nifty HR Diagrams
Home Astronomy Research    2026 Neutrinos From De-excitation    2024 Radiative Opacity    2024 Neutrino Emission from Stars    2023 White Dwarfs & 12C(α,γ)16O    2023 MESA VI    2022 Earendel, A Highly Magnified Star    2022 Black Hole Mass Spectrum    2021 Skye Equation of State    2021 White Dwarf Pulsations & 22Ne    Software Instruments 2026 AAS Journals    AAS YouTube    Listing of 500+ Author Videos    AAS Peer Review Workshops Outreach Material Education Material Other Stuff:    Bicycle Adventures    Illustrations      Introductory Astronomy      Energy in Everyday Life      Geometry of Art and Nature      Seedhead phyllotaxis      Calculus      Logos and Motifs      Nifty HR diagrams      Supernova 1987A      Unknown Pleasures      Reaction network matrices      Nuclide charts    Presentations Contact: F.X.Timmes my one page vitae, full vitae, research statement, and teaching statement.	Rosenberg, 1910. Pleiades color-magnitude; comparison of the spectroscopic calcium K line with Hδ and H linesζ lines on the abscissa, photographic brightness on the as the ordinate. Hertzsprung, 1911. Hyades with absolute magnitudes on the top horizontal axis, absolute photographic magnitude on the lower axis, and and color index on the vertical axis. Russell, 1914, paper here. "All the direct measures of parallax avaliable in the spring of 1913." Hess Diagram from Lonnquist, Meddel. Astron. Obs. Upsala, No. 25, 1927 Jeans 1928 - Liquid Stars! Gamow 1938 - no giants! Unmistakably Icko Iben Adapted from Jim Kaler Adapted from Michael Seeds Jørgen Christensen-Dalsgaard Unknown, circa 1970 Supernova 1987A Anatoly Fomenko (1967) Hester et al (2010) Guy Ottewell HR Aurora, Guy Ottewell Add another axis for a 3D HR Pattern recognition Tribal motif of image on left. Robert Stevens Science Ink Tatoo with Sun's location Supernova Type Ia in HR diagram Adapted from Falk Herwig 2005. M31 HR rap beefs HR of love Karen Fischer Tiffany Ard Astronomy Magazine Varadi Nagy Pallal Gabriel Perez Diaz Jillian Bornak 2013 Angeles Muñoz Angeles Muñoz MrsGeology pop III version 5 playful Unmistakably xkcd After Péter I Pápics GAIA DR2 photon and first neutrino HR diagram