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- II_Pegasi abstract "II Pegasi is a binary star system in the constellation of Pegasus with an apparent magnitude of 7.4 and a distance of 130 light years. It is a very active RS Canum Venaticorum variable (RS CVn), a close binary system with active starspots.The primary (II Pegasi A) is a cool subgiant, an orange K-type star. It has begun to evolve off the main sequence and expand. Starspots cover about 40% of its surface. The star produces intense flares observable at all wavelengths.Its smaller companion (II Pegasi B) is too close to have been observed directly. It is a red dwarf, an M-type main sequence star. The stars are tidally locked in a very close orbit with a period of 6.7 days and a separation of a few stellar radii.X-ray flares from II Pegasi A were observed with the Ariel 5 satellite in the 1970's and with later x-ray observatories. In December 2005 a superflare was detected by the Swift Gamma-Ray Burst Mission. It was the largest stellar flare ever seen and was a hundred million times more energetic than The Sun's typical solar flare.".
- II_Pegasi wikiPageID "16160880".
- II_Pegasi wikiPageRevisionID "603190369".
- II_Pegasi absmagV "3.8".
- II_Pegasi appmagV "7.4".
- II_Pegasi class "K2 IV".
- II_Pegasi class "M0-M3 V".
- II_Pegasi component "II Pegasi A".
- II_Pegasi component "II Pegasi B".
- II_Pegasi constell Pegasus_(constellation).
- II_Pegasi dec "+28° 38' 01.2422"'".
- II_Pegasi epoch "J2000".
- II_Pegasi gravity "3.2".
- II_Pegasi hasPhotoCollection II_Pegasi.
- II_Pegasi luminosity "0.53".
- II_Pegasi luminosity "1.06".
- II_Pegasi mass "0.4".
- II_Pegasi mass "0.8".
- II_Pegasi noHeading "y".
- II_Pegasi pError "0.51".
- II_Pegasi parallax "25.06".
- II_Pegasi propMoDec "34.69".
- II_Pegasi propMoRa "576.22".
- II_Pegasi ra "86104.05313".
- II_Pegasi radialV "-20.5".
- II_Pegasi radius "3.4".
- II_Pegasi temperature "4600".
- II_Pegasi type Main_sequence.
- II_Pegasi type Subgiant.
- II_Pegasi variable RS_Canum_Venaticorum_variable.
- II_Pegasi subject Category:Henry_Draper_Catalogue_objects.
- II_Pegasi subject Category:K-type_stars.
- II_Pegasi subject Category:Objects_named_with_variable_star_designations.
- II_Pegasi subject Category:Pegasus_(constellation).
- II_Pegasi subject Category:RS_Canum_Venaticorum_variables.
- II_Pegasi subject Category:Variable_stars.
- II_Pegasi type CelestialBody109239740.
- II_Pegasi type NaturalObject100019128.
- II_Pegasi type Object100002684.
- II_Pegasi type PhysicalEntity100001930.
- II_Pegasi type RSCanumVenaticorumVariables.
- II_Pegasi type Star109444100.
- II_Pegasi type Thing100002452.
- II_Pegasi type Variable109468959.
- II_Pegasi type VariableStar109469152.
- II_Pegasi type VariableStars.
- II_Pegasi type Whole100003553.
- II_Pegasi type CelestialBody.
- II_Pegasi type Star.
- II_Pegasi type PhysicalBody.
- II_Pegasi comment "II Pegasi is a binary star system in the constellation of Pegasus with an apparent magnitude of 7.4 and a distance of 130 light years. It is a very active RS Canum Venaticorum variable (RS CVn), a close binary system with active starspots.The primary (II Pegasi A) is a cool subgiant, an orange K-type star. It has begun to evolve off the main sequence and expand. Starspots cover about 40% of its surface.".
- II_Pegasi label "II Pegasi".
- II_Pegasi label "II Pegasi".
- II_Pegasi sameAs II_Pegasi.
- II_Pegasi sameAs m.03wbkj3.
- II_Pegasi sameAs Q5176684.
- II_Pegasi sameAs Q5176684.
- II_Pegasi sameAs II_Pegasi.
- II_Pegasi wasDerivedFrom II_Pegasi?oldid=603190369.
- II_Pegasi isPrimaryTopicOf II_Pegasi.
- II_Pegasi name "II Pegasi".