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1 Jan: 13.8: Big Bang, as seen through cosmic background radiation, which would have been last emitted 14 minutes after midnight 19 Jan 13.1 Oldest known Gamma Ray Burst: 26 Jan 12.85 First galaxies form [4] 16 Mar: 11: Milky Way Galaxy formed 13 May: 8.8: Milky Way Galaxy disk formed 2 Sep: 4.57: Formation of the Solar System: 6 Sep: 4.4 ...
The following is a list of NGC objects, that is objects listed in the New General Catalogue (NGC). It is one of the largest comprehensive astronomical catalogues for deep sky objects such as star clusters, nebulae, and galaxies. List of NGC objects (1–1000) List of NGC objects (1001–2000) List of NGC objects (2001–3000)
A look at the science of planet hunting; astronomers explain the technology and methods used to find extra-solar planets—worlds outside the Sun's Solar System orbiting other stars; and a look at some of the most interesting planets that have been discovered, such as "Hot Jupiters" and "Super-Earths."
Lists of galaxies. List of galaxies; List of largest galaxies; List of galaxies with richest globular cluster systems; List of nearest galaxies; List of galaxies named after people; List of spiral galaxies; List of polar-ring galaxies; List of ring galaxies; List of quasars; Satellite galaxies. List of satellite galaxies of the Milky Way
Given the different Sun incidence in different positions in the orbit, it is necessary to define a standard point of the orbit of the planet, to define the planet position in the orbit at each moment of the year w.r.t such point; this point is called with several names: vernal equinox, spring equinox, March equinox, all equivalent, and named considering northern hemisphere seasons.
This is a list of NGC objects 1–1000 from the New General Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters , nebulae , and galaxies . Other objects in the catalogue can be found in the other subpages of the list of NGC objects .
By measuring the shape and movement of galaxies as far as 10 billion light-years away, astronomers hope to learn more about the dark energy and matter that make up 95% of the universe.
The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source