Meanings
- uncountableastronomyApoapsis around a black hole.
Indeed, the speed of, say, S2 at perinigricon is as large as 2.6 per cent of the speed of light, while at aponigricon it is 0.1 per cent of c.
2011 September, Lorenzo Iorio, “Long-term classical and general relativistic effects on the radial velocities of the stars orbiting Sgr A*”, in Monthly Notices of the Royal Astronomical Society1 more example
Fig. 1 indicates that close encounters are negligible at aponigricon and for inclinations in the range 60–90° in both prograde and retrograde orbits.
2013 June, R de la Fuente Marcos, C de la Fuente Marcos, “Colliding with G2 near the Galactic Centre: a geometrical approach”, in Monthly Notices of the Royal Astronomical Society
Origin
From apo- + Latin niger (“black”) + -icon, alternative form of -ion.
Full word history & related roots →Cite this entry
aponigricon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/aponigricon
“aponigricon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/aponigricon. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “aponigricon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/aponigricon.
Source: aponigricon on Wiktionary, CC BY-SA 4.0.