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Astronomy Picture of the Day (APOD) is a website provided by NASA and Michigan Technological University (MTU). It reads: "Each day a different image or photograph of our universe is featured, along with a brief explanation written by a professional astronomer ."
HD 10180, also designated 2MASS J01375356-6030414, is a Sun-like star in the southern constellation Hydrus that is notable for its large planetary system.Since its discovery, at least six exoplanets have been observed orbiting it, and some studies have proposed up to nine potential planets, which would make it potentially the largest of all known planetary systems, including the Solar System.
Messier 25, also known as IC 4725, is an open cluster of stars in the southern constellation of Sagittarius.The first recorded observation of this cluster was made by Philippe Loys de Chéseaux in 1745 and it was included in Charles Messier's list of nebulous objects in 1764. [6]
An earlier image obtained by ASAS-SN on 26.32 March 2018 showed the nova was a magnitude ~10.4 object at that time, and the object was not detected on ASAS-SN images taken on 15.34 March 2018 and earlier. [6] V906 Carinae was featured in the Astronomy Picture of the Day on 25 March 2018. [7]
Astronomy Picture of the Day (2000-09-29) WEBDA open cluster database website for Hyades cluster – E. Paunzen (Univ. Vienna) Distance to the Hyades undergraduate lab Archived 2016-03-03 at the Wayback Machine – J. Lucey (University of Durham) Warburg Institute Iconographic Database (medieval and early modern images of the Hyades)
HD 189733, also catalogued as V452 Vulpeculae, is a binary star system 64.5 light-years (19.8 parsecs) away in the constellation of Vulpecula (the Fox).The primary star is suspected to be an orange dwarf star, [2] while the secondary star is a red dwarf star. [5]
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O'Donnell has been awarded with the Astronomy Picture of the Day (APOD) by NASA twice. The first was published on the APOD website on March 20, 2015, entitled "Sunshine, Earthshine". [11] "Earth Shine" depicts the moon 14 hours after perigee, the point where the moon is closest to the earth. [12]