אלפא בסרטן

אלפא בסרטן
נתוני תצפית
קבוצת כוכבים סרטן (Cancer)
שמות נוספים אקיובנס
סוג ננס צהוב
בהירות נראית 4.23[1]
סיווג ספקטרלי A5m[2]
עלייה ישרה 08ʰ 58ᵐ 29.2ˢ[2] מילי-שניות קשת בשנה
נטייה

‏27.723″ ‏51′ ‏11°‏+

[2] מילי-שניות קשת בשנה
מאפיינים פיזיים
בהירות מוחלטת 0.6
מרחק 174 שנות אור
53.35 פארסק[3]
רדיוס 1.0[4] רדיוסי שמש
מסה 2[5] מסות שמש
עוצמת הארה פי 23[5] מהשמש
מהירות סיבוב 75 קילומטר לשנייה
מהירות רדיאלית −12.1±0.8 קילומטר לשנייה
היסט 18.3304±0.3216 אלפיות של שניות קשת
לעריכה בוויקינתונים שמשמש מקור לחלק מהמידע בתבנית

α (אלפא) בסרטןלטינית α Cancri) הוא כוכב בקבוצת הכוכבים סרטן. ידוע גם בשמו המסורתי אקיובנס (Açubens). מכיוון שכוכב זה נראה בשמי כדור הארץ בסמוך למישור המילקה, הוא לעיתים קרובות לוקח חלק בהתקבצות אסטרונומית.

קישורים חיצוניים

הערות שוליים

  1. ^ NSV 4327, database entry, New Catalogue of Suspected Variable Stars, the improved version, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line October 20, 2009.
  2. ^ 1 2 3 שאילתא באתר SIMBAD, 6.7.2012
  3. ^ Perryman, M. A. C. et al. (1997), "The Hipparcos Catalogue", Astronomy & Astrophysics 323: L49–L52
  4. ^ HD 76756, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224.
  5. ^ 1 2 אלפא בסרטן, האתר של ג'ים קלר


ערך זה הוא קצרמר בנושא מדעי החלל. אתם מוזמנים לתרום לוויקיפדיה ולהרחיב אותו.

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