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- R_Aquarii abstract "R Aquarii (R Aqr) is a variable star in the constellation Aquarius.R Aquarii is a symbiotic star believed to contain a white dwarf and a Mira-type variable in a binary system. The orbital period is approximately 44 years. The main Mira-type star is a red giant, and varies in brightness by a factor of several hundred and with a period of slightly more than a year; this variability was discovered by Karl Ludwig Harding in 1810. It has a distance of about 200 parsec, and is one of the nearest symbiotic stars and a well known jet source.By its gravitational pull, the white dwarf draws in material from the red giant and occasionally ejects some of the surplus in weird loops to form the nebula seen in the linked image. The whole system appears reddened because it is situated in a very dusty region of space, and its blue light is absorbed before reaching us. The nebula around R Aquarii is also known as Cederblad 211. According to Tom Polakis, as of 1998 no one had succeeded to observe this challenging object visually. It is possible that the nebula is the remnant of a nova-like outburst, which may have been observed by Japanese astronomers, in the year 930 AD.".
- R_Aquarii thumbnail R_Aquarii.jpg?width=300.
- R_Aquarii wikiPageExternalLink AladinPreview?-c=23+43+49.4616-15+17+04.202&ident=V*+R+Aqr&submit=Aladin+previewer.
- R_Aquarii wikiPageExternalLink image.
- R_Aquarii wikiPageExternalLink vsots_raqr.
- R_Aquarii wikiPageID "12566372".
- R_Aquarii wikiPageRevisionID "592889196".
- R_Aquarii absmagV "-6.87".
- R_Aquarii appmagV "5.72".
- R_Aquarii bV "1.58".
- R_Aquarii class "M7IIIpev".
- R_Aquarii constell Aquarius_(constellation).
- R_Aquarii epoch "J2000".
- R_Aquarii hasPhotoCollection R_Aquarii.
- R_Aquarii luminosity "50000".
- R_Aquarii mass "1.5".
- R_Aquarii pError "3.15".
- R_Aquarii parallax "5.07".
- R_Aquarii propMoDec "-32.61".
- R_Aquarii propMoRa "32.98".
- R_Aquarii radialV "-22".
- R_Aquarii radius "4300.014".
- R_Aquarii uB "0.32".
- R_Aquarii variable Mira.
- R_Aquarii subject Category:Aquarius_(constellation).
- R_Aquarii subject Category:HR_objects.
- R_Aquarii subject Category:Henry_Draper_Catalogue_objects.
- R_Aquarii subject Category:M-type_giants.
- R_Aquarii subject Category:Mira_variables.
- R_Aquarii subject Category:Objects_named_with_variable_star_designations.
- R_Aquarii subject Category:Spectroscopic_binaries.
- R_Aquarii type Animal100015388.
- R_Aquarii type BinaryStar109221070.
- R_Aquarii type CelestialBody109239740.
- R_Aquarii type Giant101323781.
- R_Aquarii type HenryDraperCatalogueObjects.
- R_Aquarii type LivingThing100004258.
- R_Aquarii type M-typeGiants.
- R_Aquarii type MiraVariables.
- R_Aquarii type NaturalObject100019128.
- R_Aquarii type Object100002684.
- R_Aquarii type ObjectsNamedWithVariableStarDesignations.
- R_Aquarii type Organism100004475.
- R_Aquarii type PhysicalEntity100001930.
- R_Aquarii type SpectroscopicBinaries.
- R_Aquarii type Star109444100.
- R_Aquarii type Thing100002452.
- R_Aquarii type Variable109468959.
- R_Aquarii type Whole100003553.
- R_Aquarii type CelestialBody.
- R_Aquarii type Star.
- R_Aquarii type Thing.
- R_Aquarii comment "R Aquarii (R Aqr) is a variable star in the constellation Aquarius.R Aquarii is a symbiotic star believed to contain a white dwarf and a Mira-type variable in a binary system. The orbital period is approximately 44 years. The main Mira-type star is a red giant, and varies in brightness by a factor of several hundred and with a period of slightly more than a year; this variability was discovered by Karl Ludwig Harding in 1810.".
- R_Aquarii label "R Aquarii".
- R_Aquarii label "R Aquarii".
- R_Aquarii label "R Aquarii".
- R_Aquarii label "R Aquarii".
- R_Aquarii label "R Aquarii".
- R_Aquarii label "R Водолея".
- R_Aquarii label "물병자리 R".
- R_Aquarii sameAs R_Aquarii.
- R_Aquarii sameAs R_Aquarii.
- R_Aquarii sameAs 물병자리_R.
- R_Aquarii sameAs R_Aquarii.
- R_Aquarii sameAs m.02ww43k.
- R_Aquarii sameAs Q1367419.
- R_Aquarii sameAs Q1367419.
- R_Aquarii sameAs R_Aquarii.
- R_Aquarii wasDerivedFrom R_Aquarii?oldid=592889196.
- R_Aquarii depiction R_Aquarii.jpg.
- R_Aquarii isPrimaryTopicOf R_Aquarii.
- R_Aquarii name "R Aquarii".