Delta Doradus Referencias Menú de navegaciónDelta Doradus«Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks»Catalogue of Stellar Diameters (CADARS)«Rotational velocities of A-type stars. III. Velocity distributions»«Debris Disk Evolution around A Stars»

Estrellas blancas de la secuencia principalConstelación de DoradoÓrbita de la Luna


estrellaconstelaciónDoradomagnitud aparenteα Doradusβ Doradusγ Doradusaños luzsistema solarestrella blanca de la secuencia principaltipo espectralKAltairγ Craterisθ Cassiopeiaemagnitud absolutaradio solarvelocidad de rotaciónkm/sradiación infrarrojaμmestrella polarLunapolo celestePolarisTierra




























Delta Doradus


Constelación

Dorado

Ascensión recta α
05h 44min 46,38s

Declinación δ
-65º 44’ 07,9’’

Distancia
145 años luz

Magnitud visual
+4,35

Magnitud absoluta
+1,10

Luminosidad
33 soles

Temperatura
8360 K

Radio
2,1 soles

Tipo espectral
A7V

Velocidad radial
-3 km/s

Delta Doradus (δ Dor / HD 39014 / HR 2015)[1]​ es una estrella de la constelación de Dorado de magnitud aparente +4,34. Es la cuarta más brillante de la misma después de α Doradus, β Doradus y γ Doradus. Se encuentra a 145 años luz de distancia del sistema solar.


Delta Doradus es una estrella blanca de la secuencia principal de tipo espectral A7V[1]​ con una temperatura superficial de 8360 K.[2]​ Del mismo tipo espectral que Altair (α Aquilae), γ Crateris o θ Cassiopeiae, es más luminosa que cualquiera de ellas, siendo su magnitud absoluta +1,10. Tiene un radio 2,1 veces mayor que el radio solar[3]​ y gira sobre sí misma con una velocidad de rotación igual o mayor a 172 km/s.[4]​ Su edad se estima en 590 millones de años.[2]​ Asimismo, muestra un exceso de radiación infrarroja a 60 μm.[5]​


Delta Doradus es la estrella polar del sur en la Luna. Aunque mejor alineada con el polo celeste que Polaris (α Ursae Minoris) en la Tierra, es sin embargo mucho más tenue que esta.



Referencias



  1. ↑ ab Delta Doradus (SIMBAD)


  2. ↑ ab Chen, C. H.; Sargent, B. A.; Bohac, C.; Kim, K. H.; Leibensperger, E.; Jura, M.; Najita, J.; Forrest, W. J.; Watson, D. M.; Sloan, G. C.; Keller, L. D. (2004). «Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks». The Astrophysical Journal Supplement Series 166 (1). pp. 351-377. 


  3. ↑ Catalogue of Stellar Diameters (CADARS) (VizieR, SIMBAD)


  4. ↑ Royer, F.; Zorec, J.; Gómez, A. E. (2007). «Rotational velocities of A-type stars. III. Velocity distributions». Astronomy and Astrophysics 463 (2). pp. 671-682. 


  5. ↑ Su, K. Y. L.; Rieke, G. H.; Stansberry, J. A.; Bryden, G.; Stapelfeldt, K. R.; Trilling, D. E.; Muzerolle, J.; Beichman, C. A.; Moro-Martin, A.; Hines, D. C.; Werner, M. W. (2006). «Debris Disk Evolution around A Stars». The Astrophysical Journal 653 (1). pp. 675-689. 








-

Popular posts from this blog

Virtualbox - Configuration error: Querying “UUID” failed (VERR_CFGM_VALUE_NOT_FOUND)“VERR_SUPLIB_WORLD_WRITABLE” error when trying to installing OS in virtualboxVirtual Box Kernel errorFailed to open a seesion for the virtual machineFailed to open a session for the virtual machineUbuntu 14.04 LTS Virtualbox errorcan't use VM VirtualBoxusing virtualboxI can't run Linux-64 Bit on VirtualBoxUnable to insert the virtual optical disk (VBoxguestaddition) in virtual machine for ubuntu server in win 10VirtuaBox in Ubuntu 18.04 Issues with Win10.ISO Installation

Image
Fear of getting stuck on one programming language / technology that is not used in my country Do the primes contain an infinite almost arithmetic progression? Biological Blimps: Propulsion Are Captain Marvel's powers affected by Thanos' actions in Infinity War Why does AES have exactly 10 rounds for a 128-bit key, 12 for 192 bits and 14 for a 256-bit key size? Can a College of Swords bard use a Blade Flourish option on an opportunity attack provoked by their own Dissonant Whispers spell? Can disgust be a key component of horror? Can I say "fingers" when referring to toes? What is Cash Advance APR? Why Shazam when there is already Superman? What does "Scientists rise up against statistical significance" mean? (Comment in Nature) What does chmod -u do? What should you do when eye contact makes your subordinate uncomfortable? Issue while creating Apex class using API How much character growth crosses the line into breaking the charac...
Read more

Are there any comparative studies done between Ashtavakra Gita and Buddhim?How is it wrong to believe that a self exists, or that it doesn't?Can you criticise or improve Ven. Bodhi's description of MahayanaWas the doctrine of 'Anatta', accepted as doctrine by modern Buddhism, actually taught by the Buddha?Relationship between Buddhism, Hinduism and Yoga?Comparison of Nirvana, Tao and Brahman/AtmaIs there a distinction between “ego identity” and “craving/hating”?Are there many differences between Taoism and Buddhism?Loss of “faith” in buddhismSimilarity between creation in Abrahamic religions and beginning of life in Earth mentioned Agganna Sutta?Are there studies about the difference between meditating in the morning versus in the evening?Can one follow Hinduism and Buddhism at the same time?Are there any prohibitions on participating in other religion's practices?Psychology of 'flow'

Image
Why "be dealt cards" rather than "be dealing cards"? Have I saved too much for retirement so far? The plural of 'stomach" How do I rename a LINUX host without needing to reboot for the rename to take effect? What defines a dissertation? Why are on-board computers allowed to change controls without notifying the pilots? Bash method for viewing beginning and end of file Student evaluations of teaching assistants Opposite of a diet Go Pregnant or Go Home Valid Badminton Score? What's the purpose of "true" in bash "if sudo true; then" What is the intuitive meaning of having a linear relationship between the logs of two variables? The baby cries all morning Is there a good way to store credentials outside of a password manager? Can I use my Chinese passport to enter China after I acquired another citizenship? Why Were Madagascar and New Zealand Discovered So Late? What are the ramifications of creating a ...
Read more

Where is the suspend/hibernate button in GNOME Shell? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)No suspend option in UI on Bionic BeaverHow can I set sleep mode in ubuntu18.04 LTS and what is the short cut key to do so?17.10 suspend not availableUbuntu 18.04 LTS missing sleep optionUbuntu 18.04 LTS - missing suspend option when power button is pressedHow to put Thinkpad X1 Extreme to sleep in Ubuntu 18.10?Suspend Button in interactive power button menu18.04 - Keep programs running after logging outway to disable Hibernate from within gconf-editor so button disappears?How can I hibernate from GNOME Shell?How can I hibernate/suspend from the command line and do so at a specific timeNo permission to suspend/hibernate after upgrading to 12.10MATE - Missing Suspend and Hibernate buttons, pressing power button shutdowns system immediatelyUbuntu 14.04: Suspend, Hibernate and Suspend-hybrid in the menu?Change “power-button-action” comand for “hibernate” option in GNOME 3.18Shutdown / Power off button does always go to suspend on 17.10Hibernate after suspend stopped working in 17.10Why doesn't the keyboard screenshot button work on Ubuntu with GNOME shell?

Image
.bashrc alias for a command with fixed second parameter Can I cut the hair of a conjured korred with a blade made of precious material to harvest that material from the korred? Did pre-Columbian Americans know the spherical shape of the Earth? calculator's angle answer for trig ratios that can work in more than 1 quadrant on the unit circle Why do C and C++ allow the expression (int) + 4*5? Dinosaur Word Search, Letter Solve, and Unscramble Is honorific speech ever used in the first person? Inverse square law not accurate for non-point masses? How does Billy Russo acquire his 'Jigsaw' mask? My mentor says to set image to Fine instead of RAW — how is this different from JPG? How do you cope with tons of web fonts when copying and pasting from web pages? What does Sonny Burch mean by, "S.H.I.E.L.D. and HYDRA don't even exist anymore"? Flight departed from the gate 5 min before scheduled departure time. Refund options No Invitation for T...
Read more