𝜈1 Dra: 24 Dra, BD+55 1944, FK5 655, HD 159541, HIP 85819, HR 6554, SAO 30447[13]
𝜈2 Dra: 25 Dra, BD+55 1945, FK5 657, HD 159560, HIP 85829, HR 6555, SAO 30450[14]
Database references
SIMBAD
𝜈 Dra
𝜈1 Dra
𝜈2 Dra
Nu Draconis (also known as 𝜈 Dra, 𝜈 Draconis, where 𝜈 is the Greek letter nu, or traditionally as Kuma/ˈkjuːmə/) is a double star in the constellation Draco. The respective components are designated 𝜈1 Draconis and 𝜈2 Draconis. The second component is a spectroscopic binary star system.[14]
This star, along with β Dra (Rastaban), γ Dra (Eltanin), μ Dra (Alrakis) and ξ Dra (Grumium) were Al ʽAwāïd, "the Mother Camels", which was later known as the Quinque Dromedarii.[15]
In Chinese, 天棓 (Tiān Bàng), meaning Celestial Flail, refers to an asterism consisting of 𝜈 Draconis, ξ Draconis, β Draconis, γ Draconis and ι Herculis.[16] Consequently, the Chinese name for 𝜈 Draconis itself is 天棓二 (Tiān Bàng èr, English: the Second Star of Celestial Flail.)[17]
The two stars of the visual binary are considered to be a common proper motion pair on the basis of their very similar parallaxes, radial velocities, and proper motions, although no orbital motion can be observed.[18]
𝜈1 Draconis is an Am star, a slowly rotating chemically peculiar star with abnormally strong metallic absorption lines in its spectrum. Its spectral type of kA3hF0mF0 means that it would have a spectral class of A3 if determined solely from its calcium K lines, F0 if determined from its hydrogen lines, and F0 if determined from other metallic spectral lines.[4]
𝜈2 Draconis is a spectroscopic binary with a period of 38 days. The two stars are separated by 0.267 au on average, and they have an almost circular orbit with an eccentricity of 0.03.[19][6] The primary is also an Am star, while the secondary has a low mass and luminosity and is only inferred from the orbital movement of the more massive star.[7]
^ abcdefghijCite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
^ abcdefCite error: The named reference clpl4_99 was invoked but never defined (see the help page).
^ abCite error: The named reference chen was invoked but never defined (see the help page).
^ abcCite error: The named reference abt was invoked but never defined (see the help page).
^ abCite error: The named reference gcsrv was invoked but never defined (see the help page).
^ abCite error: The named reference margoni was invoked but never defined (see the help page).
^ abcCite error: The named reference msc was invoked but never defined (see the help page).
^ abcdCite error: The named reference pastel was invoked but never defined (see the help page).
^ abCite error: The named reference aaa393 was invoked but never defined (see the help page).
^Cite error: The named reference tetzlaff was invoked but never defined (see the help page).
^Cite error: The named reference masana was invoked but never defined (see the help page).
^Cite error: The named reference stateva was invoked but never defined (see the help page).
^Cite error: The named reference simbad_1 was invoked but never defined (see the help page).
^ abCite error: The named reference simbad_2 was invoked but never defined (see the help page).
^Cite error: The named reference allen1963 was invoked but never defined (see the help page).
^(in Chinese)中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
^(in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 Archived 2011-01-29 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.
^Cite error: The named reference lepine was invoked but never defined (see the help page).
^Cite error: The named reference rodriguez was invoked but never defined (see the help page).
NuDraconis (also known as 𝜈 Dra, 𝜈 Draconis, where 𝜈 is the Greek letter nu, or traditionally as Kuma /ˈkjuːmə/) is a double star in the constellation...
Gamma Draconis (γ Draconis, abbreviated Gamma Dra, γ Dra), formally named Eltanin /ɛlˈteɪnɪn/, is a star in the northern constellation of Draco. Contrary...
Beta Draconis, a name Latinized from β Draconis, is a binary star system and the third-brightest star in the northern circumpolar constellation of Draco...
Mu Draconis (μ Draconis, abbreviated Mu Dra, μ Dra) is a multiple star system near the head of the constellation of Draco. With a combined magnitude of...
film directed by Umut Dag Kuma (star), a traditional name for the star NuDraconis Kuma Reality Games, a video game developer Kuma (Cap), a traditional...
as a ring of mother camels – Beta Draconis (Rastaban), Gamma Draconis (Eltanin), NuDraconis (Kuma) and Xi Draconis (Grumium) – surrounding a foal (the...
Xi Draconis (ξ Draconis, abbreviated Xi Dra, ξ Dra) is a double or binary star in the northern circumpolar constellation of Draco. It has an apparent visual...
musician under the alias of "Frater Nemidial", and currently known as Victor Draconi. The two men, who confessed to their crime, were eventually sentenced by...
Detail for NSV 4456". www.aavso.org. Retrieved 2022-09-01. "VSX : Detail for nu. Pup". www.aavso.org. Retrieved 2022-09-03. "VSX : Detail for NSV 14656"....
based upon the hour at which Vega set below the horizon. In Chinese, 織女 (Zhī Nǚ), meaning Weaving Girl (asterism), refers to an asterism consisting of Vega...
P.; Brogt, E. (2016-08-21). "The conjectured S-type retrograde planet in nu Octantis: more evidence including four years of iodine-cell radial velocities"...
analyses with DAO spectrograms - XIX. The superficially normal B stars ζ Draconis, η Lyrae, 8 Cygni and 22 Cygni". Monthly Notices of the Royal Astronomical...
Star of Left Wall Theta Draconis 上宰 Shǎng Zǎi The First Premier 紫微左垣三 Zǐ Wēi Zuǒ Yuán sān the Third Star of Left Wall Eta Draconis Athebyne 少宰 Shǎo Zǎi The...
the name Tianyi for 7 Draconis, an alternative identification of this star. The IAU has adopted the name Taiyi for 8 Draconis, an alternative identification...
recently. Carach Angren, Cirith Gorgor, Israthoum, Dodecahedron, Ordo Draconis, Funeral Winds, Lugubre, Slechtvalk and Urfaust are some of the best-known...
stars in Pictor are known to host planetary systems. AB Pictoris is a BY Draconis variable star with a substellar companion that is either a large planet...
Bigelow Sky Survey BY – (celestial object) BY Draconis, a class of rotating variable stars for which BY Draconis is the archetypal object C – First Cambridge...