Related by context. Frequent words. (Click for all words.) 59 penumbra 54 haloes 54 umbra 51 emanations 51 emanation 51 visible wavelengths 50 photometry 49 liminal 49 interstices 49 numinous 49 indeterminacy 49 singularities 48 temporal 48 faint glow 48 unobscured 48 evanescent 48 occultation 47 refract 47 optical wavelengths 47 whorls 47 auroral 47 spectral 47 refracting 47 partial eclipse 47 Hawking radiation 47 ecliptic 47 luminous 46 singularity 46 spectrally 46 constellation Leo 46 superimposition 46 reverberant 46 Cepheids 46 dimness 45 entropic 45 accretion disk 45 whorl 45 fluorescing 45 tracery 45 planetary nebula 45 solar corona 45 anisotropy 45 X ray emission 44 quantized 44 optical microscopy 44 heliosheath 44 crepuscular 44 refracts 44 planetary nebulae 44 lineaments 44 polarizations 44 z = 44 excitations 44 aurorae 44 redshifts 44 Fig. 1A 44 celestial 44 refracted 44 parallax 44 formless 44 shorter wavelengths 44 spacetime 44 greyness 44 symmetries 44 comet tail 44 GRB # 44 blankness 44 diaphanous 44 galaxy cluster 43 distant galaxy 43 sunbeams 43 unaided eye 43 reddish hue 43 starlight 43 interstellar dust 43 nebulae 43 isotropic 43 dolorous 43 translucence 43 sublimity 43 mottling 43 speckle 43 partial lunar eclipse 43 phenomenology 43 iridescence 43 XMM Newton 43 relativistic 43 Jupiter Saturn 43 cirrus 43 dwarf galaxy 43 loveliness 43 caudal 43 gamma ray burst 43 vernal 43 blueness 43 cumulus 43 moonrise 42 teleological 42 dimly 42 halos 42 enfold