Editing Cancer (constellation) (section)

{{Short description|Zodiac constellation in the northern hemisphere}}
{{Use dmy dates|date=April 2021}}
{{Infobox constellation
| name = Cancer
| abbreviation = Cnc<ref name="ridpath"/>
| genitive = Cancri<ref name="ridpath"/>
| pronounce = {{IPAc-en|ˈ|k|æ|n|s|ər}},<br/>genitive {{IPAc-en|ˈ|k|æ|ŋ|k|r|aɪ}}
| symbolism = the [[Crab]]
| RA = {{RA|07|55|19.7973}}–{{RA|09|22|35.0364}}<ref name=boundary>{{Cite journal | title=Cancer, constellation boundary | journal=The Constellations | publisher=International Astronomical Union|url=https://www.iau.org/public/themes/constellations/#cnc | access-date=14 February 2014 }}</ref>
| dec= {{dec|33.1415138}}–{{dec|6.4700689}}<ref name=boundary/>
| family = [[Zodiac]]
| areatotal = 506
| arearank = 31st
| numbermainstars = 0
| numberbfstars = 70
| numberstarsplanets = 10
| numberbrightstars = 2
| numbernearbystars = 0
| brighteststarname = [[Beta Cancri|β Cnc]] (Tarf)
| starmagnitude = 3.53
| neareststarname = [[DX Cancri|DX Cnc]]
| stardistancely = 11.84
| stardistancepc = 3.63
| numbermessierobjects = 2
| meteorshowers = [[Delta Cancrids]]
| bordering = [[Lynx (constellation)|Lynx]]<br />[[Gemini (constellation)|Gemini]]<br />[[Canis Minor]]<br />[[Hydra (constellation)|Hydra]]<br />[[Leo (constellation)|Leo]]<br />[[Leo Minor]] (corner)
| latmax = [[North Pole|90]]
| latmin = [[60th parallel south|60]]
| month = March
| notes=}}
'''Cancer''' is one of the twelve [[constellation]]s of the [[zodiac]] and is located in the [[Northern celestial hemisphere]]. Its name is [[Latin]] for [[crab]] and it is commonly represented as one. Cancer is a medium-size constellation with an area of 506 [[square degree]]s and its stars are rather faint, its brightest star [[Beta Cancri]] having an [[apparent magnitude]] of 3.5. It contains ten stars with known [[exoplanet|planets]], including [[55 Cancri]], which has five: one [[Super-Earth|super-earth]] and four [[gas giant]]s, one of which is in the [[habitable zone]] and as such has expected temperatures similar to Earth. At the (angular) heart of this sector of our celestial sphere is [[Beehive Cluster|Praesepe]] (Messier 44), one of the closest [[open cluster]]s to Earth and a popular target for amateur astronomers.