HD 118508

HD 118508
Dữ liệu quan sát
Kỷ nguyên J2000      Xuân phân J2000
Chòm sao Mục Phu
Xích kinh 13h 36m 59,08289s[1]
Xích vĩ +24° 36′ 47,8734″[1]
Cấp sao biểu kiến (V) 58021±0,0017[2]
Các đặc trưng
Kiểu quang phổM2III[3]
Chỉ mục màu U-B+1,85[4]
Chỉ mục màu B-V+1,58[4]
Trắc lượng học thiên thể
Vận tốc xuyên tâm (Rv)−3569±0,18[2] km/s
Chuyển động riêng (μ) RA: -26,20[1] mas/năm
Dec.: -2,02[1] mas/năm
Thị sai (π)7.11 ± 0.34[1] mas
Khoảng cách460 ± 20 ly
(141 ± 7 pc)
Chi tiết
Độ sáng324[5] L☉
Nhiệt độ3,817[5] K
Tên gọi khác
BD+25 2652, FK5 3085, HD 118508, HIP 66417, HR 5123, SAO 82905.
Cơ sở dữ liệu tham chiếu
SIMBADdữ liệu

HD 118508 là một sao biến quang ở phía bắc chòm sao Mục Phu. Nó có sự thay đổi nhẹ về suất phản chiếu với biến độ khoảng 0,04 độ lớn.[6]

Tham khảo

  1. ^ a b c d e van Leeuwen, F. (tháng 11 năm 2007), “Validation of the new Hipparcos reduction”, Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. ^ a b Famaey, B.; và đồng nghiệp (2005), “Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters”, Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272.
  3. ^ Eggleton, P. P.; Tokovinin, A. A. (tháng 9 năm 2008), “A catalogue of multiplicity among bright stellar systems”, Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x
  4. ^ a b Mermilliod, J.-C. (1986), “Compilation of Eggen's UBV data, transformed to UBV (unpublished)”, Catalogue of Eggen's UBV data. SIMBAD, Bibcode:1986EgUBV........0M
  5. ^ a b McDonald, I.; và đồng nghiệp (2012), “Fundamental Parameters and Infrared Excesses of Hipparcos Stars”, Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x
  6. ^ Percy, John R.; Au, Winnie (tháng 11 năm 1994), “APT Observations of Small-Amplitude Red Variables”, Information Bulletin on Variable Stars (4114): 1, Bibcode:1994IBVS.4114....1P

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