APOD and General Astronomy Discussion Forum
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Looks like an ant's face, to me. Or worse.orin stepanek wrote: ↑Tue Aug 25, 2020 8:03 pm Bubble_LiverpoolNilsson_960.jpg
Look at this! Is it not a perfect picture of a humans's face! A woman
crying out! Well maybe not perfect; but who knows what might have
happened to beings that might have lived in the habitable zones of
the star system that went bye bye!
https://en.wikipedia.org/wiki/Bubble_Nebula_(NGC_6822) wrote:<<The Bubble Nebula in Barnard's Galaxy has the official designation of Hubble 1925 I as it was the first (Roman numeral 1) object recorded in a paper by E. Hubble 1925. It includes areas of bright H II emission. It is located north-west of the larger Hubble 1925 III.Click to play embedded YouTube video.
Barnard's Galaxy (NGC 6822) is a barred irregular galaxy approximately 1.6 million light-years away in the constellation Sagittarius. Part of the Local Group of galaxies, it was discovered by E. E. Barnard in 1884 (hence its name), with a six-inch refractor telescope. It is one of the closer galaxies to the Milky Way. It is similar in structure and composition to the Small Magellanic Cloud. It is about 7,000 light-years in diameter.
Edwin Hubble, in the paper N.G.C. 6822, A Remote Stellar System, identified 15 variable stars (11 of which were Cepheids) of this galaxy. He provided spectral characteristics, luminosities and dimensions for the five brightest "diffuse nebulae" (giant H II regions) that included the Bubble Nebula and the Ring Nebula. He also computed the absolute magnitude of the entire galaxy.
Hubble's detection of eleven Cepheid variable stars was a milestone in astronomy. Utilizing the Cepheid Period-Luminosity relationship, Hubble determined a distance of 214 kiloparsecs. This was the first system beyond the Magellanic Clouds to have its distance determined. (Hubble continued this process with the Andromeda Galaxy and the Triangulum Galaxy). His distance to the galaxy was way beyond Harlow Shapley's value of 300,000 light-years for the size of universe. In the paper, Hubble concluded the "Great Debate" of 1920 between Heber Curtis and Shapley over the scale of the universe and the nature of the "spiral nebula". It soon became evident that all spiral nebulae were in fact spiral galaxies far outside our own Milky Way.>>
Chris Peterson wrote: ↑Tue Aug 25, 2020 8:09 pmLooks like an ant's face, to me. Or worse.orin stepanek wrote: ↑Tue Aug 25, 2020 8:03 pm Bubble_LiverpoolNilsson_960.jpg
Look at this! Is it not a perfect picture of a humans's face! A woman
crying out! Well maybe not perfect; but who knows what might have
happened to beings that might have lived in the habitable zones of
the star system that went bye bye!
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v_mandarina_face_baine-wsda-copy.jpg
