大犬座VY

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大犬座VY大犬座特超巨星也。去坤輿四千九百光年。其重卅倍於,半徑千四百二十倍之。屬半規則變星。假置此星於太陽系,其際出鎮星之外矣。或非之,謂此星雖大,不過出軌之外爾。[一]

略史[]

西元一八〇一年,法蘭西人傑羅姆·拉朗德勘得此星。歸之視星等七。十九世紀,觀象者不知此星之大,見六明散耀,以為眾星集此。實彼雲氣之顯者而已。一九五七年、一九九八年勘察再三,不見伴星[二]

VY,M星之屬也。明甚。處赫羅圖之右上。本或為O主序星[三]

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  1. HubbleSite: Astronomers Map a Hypergiant Star's Massive Outbursts
  2. Wittkowski, M.; Langer, N.; Weigelt, G. Diffraction-limited speckle-masking interferometry of the red supergiant VY CMa. Astronomy and Astrophysics (European Southern Observatory). October 27, 1998, 340: 39–42.
  3. Lada, Charles J.; Reid, Mark J. CO observations of a molecular cloud complex associated with the bright rim near VY Canis Majoris. The Astrophysical Journal (American Astronomical Society). January 1, 1978, 219: 95–104. Bibcode:1978ApJ...219...95Ldoi:10.1086/155758.