Sigma Tauri (σ Tauri) is the Bayer designation for a pair of white-hued stars in the zodiac constellation of Taurus. The system is a visual double star...

in Hartmann et al.). The disc gradually cools in what is known as the T Tauri star stage. Within this disc, the formation of small dust grains made of...

including 16 classified as protostars, 123 T Tauri stars with dense circumstellar disks, and 77 weaker T Tauri stars with thinner disks. The last 2 categories...

the constellation Taurus (the Bull) is designated α Tauri (abbreviated α Tau, pronounced Alpha Tauri), which means "Alpha of the Bull". Bayer used Greek...

longer used – Bayer’s Uranometria and Bayer letters Also designated as Beta Tauri (β Tau) Now included in the constellation Lynx Also designated Psi Herculis...

Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a multiple star system in the constellation Orion, consisting of the brightest members of a young open...

of object. T Tauri was found to be a very young and variable star, and is the prototype of the class of similar objects known as T Tauri stars which have...

After a protostar ends its phase of rapid contraction and becomes a T Tauri star, it is extremely luminous. The star continues to contract, but much...

Orion as a hunter; an arrow he has shot is represented by Aldebaran (Alpha Tauri), with the same figure as other Western depictions. There are claims in...

Triple star system 1.64 1.59 Bellatrix Star 1.64 Gacrux Star 1.65 Beta Tauri Star 1.69 1.64 Alnilam Star 1.69 Beta Carinae Star 1.71 1.69 Gamma Velorum...

original on December 12, 2021. Ninja Gaiden Sigma, credits – TJ Rogan (June 20, 2011). Ninja Gaiden Sigma: Credits and Ending Cinematic. YouTube. Event...

harvest, was a constellation formed by Alpha Aurigae, Beta Aurigae, Beta Tauri, Theta Aurigae, and Iota Aurigae. Sanzhu or Zhu was one of three constellations...

and Bouvier, J., “Accretion Disks around T Tauri Stars”. Valenti, J. A.; Basri, G.; Johns, C. M., "T Tauri Stars in Blue". Basri, G.; Marcy, G. W.; Graham...

much dimmer magnitude 5.5 star on its southern axis, Polaris Australis (Sigma Octantis). From around 1700 BC until just after 300 AD, Kochab (Beta Ursae...

He spent most of his career at Czech football clubs, FK Jablonec and SK Sigma Olomouc, playing over 100 matches in the Gambrinus liga. Tomáš Lovásik –...

TW Hydrae b is a likely extrasolar planet orbiting the young T Tauri star TW Hydrae approximately 176 light-years (54 parsecs, or nearly 1.665×1016 km)...

stars Gamma, Delta¹, Delta², Delta³, Epsilon, Theta Tauri, as well as the bright star Alpha Tauri (Aldebaran) which forms the red eye of the Bull. Other...

codes were used "nebular" or "rapidly irregular" variable stars such as T Tauri and Orion variables. The remaining irregular stars, cool slowly varying...

52266, HD 57682, 14 Cephei, 10 Lacertae) and 3 O9.5 V standards (HD 34078, Sigma Orionis, Zeta Ophiuchi). An important review on spectral classification...

October 2009. Mallinson, William (2005). Cyprus: A Modern History. I. B. Tauris. p. 81. ISBN 978-1-85043-580-8. Archived from the original on 17 May 2024...

{{\text{d}}T(r)}{{\text{d}}r}}\ =\ -{\frac {3\kappa (r)\rho (r)L(r)}{(4\pi r^{2})(16\sigma _{B})T^{3}(r)}}} where κ(r) is the opacity, ρ(r) is the matter density,...

TW Hydrae is a T Tauri star approximately 196 light-years away in the constellation of Hydra (the Sea Serpent). TW Hydrae is about 80% of the mass of...

Farhad (1994). The Assassin legends: myths of the Ismaʻilis (2 ed.). I.B. Tauris. p. 213. ISBN 978-1-85043-705-5. Otfinoski, Steven (2003). Marco Polo: to...

{\displaystyle T={\sqrt[{4}]{\frac {L(1-a)}{16\pi \sigma D^{2}}}}} Where σ {\displaystyle \sigma } is the Stefan–Boltzmann constant. Note that the planet's...

Time Lord: Regenerating "Doctor Who" in the Twenty-First Century (I. B. Tauris, 2010). 261 pages. Discusses the revival of the BBC's Doctor Who in 2005...

globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object Hayashi track Henyey track Evolution Main sequence Red-giant...

globule Young stellar object Protostar Pre-main-sequence Herbig Ae/Be T Tauri Herbig–Haro object Hayashi track Henyey track Evolution Main sequence Red-giant...

hydrogen, κ = σ T / m p {\displaystyle \kappa =\sigma _{\rm {T}}/m_{\rm {p}}} , where σ T {\displaystyle \sigma _{\rm {T}}} is the Thomson scattering cross-section...

blue giants. Examples: Meissa (λ Orionis A), an O-type giant. Alcyone (η Tauri), a B-type giant, the brightest star in the Pleiades; Thuban (α Draconis)...

perfect black body: L = 4 π R 2 σ T e f f 4 {\displaystyle L=4\pi R^{2}\sigma \,T_{eff}^{4}} . Thus, any value of R corresponds to a certain point in...