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- 29_Canis_Majoris abstract "29 Canis Majoris is a star in the constellation Canis Major. It is classified as a Beta Lyrae eclipsing contact binary and given the variable star designation UW Canis Majoris. Its brightness varies from magnitude +4.84 to +5.33 with a period of 4.39 days. Bode had initially labelled it as Tau2 Canis Majoris, but this designation had been dropped by Gould and subsequent authors.29 Canis Majoris A is a rare blue supergiant of spectral type O7.5-8 Iab with a diameter 13 times that of the Sun, while its companion is a slightly cooler, less evolved and less luminous supergiant of spectral type O9.7Ib that is 10 times the Sun's diameter. The brighter star is the more luminous, its luminosity 200,000 times that of the Sun as opposed to the secondary's 63,000 times. However the secondary is the more massive star at 19 Solar masses to the primary's 16. Parallax measurements showed it to be approximately 3000 light years from Earth, but this is unexpectedly close for a star of its spectral type and brightness. Recent more accurate Hipparcos parallax data gives an even closer result around 2000 light years. It is thought to be distant member of NGC 2362 which would place it about 5000 light years and more closely match its expected luminosity. The contradiction between the different distance results is still a subject of research.".
- 29_Canis_Majoris wikiPageID "2922328".
- 29_Canis_Majoris wikiPageRevisionID "600532327".
- 29_Canis_Majoris absmagV "-6.1".
- 29_Canis_Majoris appmagV "4.84".
- 29_Canis_Majoris bV "-0.15".
- 29_Canis_Majoris class "O7.5Iabf + O9.7Ib".
- 29_Canis_Majoris constell Canis_Major.
- 29_Canis_Majoris dec "24".
- 29_Canis_Majoris distLy "5".
- 29_Canis_Majoris distPc "1.5".
- 29_Canis_Majoris epoch Epoch_(astronomy).
- 29_Canis_Majoris hasPhotoCollection 29_Canis_Majoris.
- 29_Canis_Majoris luminosity "200000".
- 29_Canis_Majoris mass "16".
- 29_Canis_Majoris pError "0.27".
- 29_Canis_Majoris parallax "1.71".
- 29_Canis_Majoris propMoDec "3.16".
- 29_Canis_Majoris propMoRa "-2.21".
- 29_Canis_Majoris ra "40.3794".
- 29_Canis_Majoris radialV "-11".
- 29_Canis_Majoris radius "13".
- 29_Canis_Majoris temperature "33750".
- 29_Canis_Majoris uB "-1.02".
- 29_Canis_Majoris variable Beta_Lyrae.
- 29_Canis_Majoris subject Category:Beta_Lyrae_variables.
- 29_Canis_Majoris subject Category:Canis_Major_(constellation).
- 29_Canis_Majoris subject Category:Flamsteed_objects.
- 29_Canis_Majoris subject Category:O-type_supergiants.
- 29_Canis_Majoris type CelestialBody.
- 29_Canis_Majoris type Star.
- 29_Canis_Majoris type PhysicalBody.
- 29_Canis_Majoris comment "29 Canis Majoris is a star in the constellation Canis Major. It is classified as a Beta Lyrae eclipsing contact binary and given the variable star designation UW Canis Majoris. Its brightness varies from magnitude +4.84 to +5.33 with a period of 4.39 days.".
- 29_Canis_Majoris label "29 Canis Majoris".
- 29_Canis_Majoris sameAs m.08cvh5.
- 29_Canis_Majoris wasDerivedFrom 29_Canis_Majoris?oldid=600532327.
- 29_Canis_Majoris isPrimaryTopicOf 29_Canis_Majoris.