1 Ilon
1 Ilon[1][2][3] (lotincha: 1 Serpentis) — Sunbula yulduz turkumidagi qizil gigant boʻlib, zohiriy yulduz kattaligi 5,52 ga teng. Bu qizil zichlashish yulduzi, gorizontal shoxning sovuq ob’ekti boʻlib, uning yadrosida geliy yonadi. Yulduz kengaytirilgan atmosferaga ega, jismning radiusi Quyoshnikidan 13 marta katta, harorat K, yorqinligi esa Quyoshnikidan 77 marta katta. Quyoshdan 1 Ilongacha boʻlgan masofa 322 4581yorugʻlik yili[4][5].
Flamstidning 1 Ilon belgisi yulduzga Serpens yulduz turkumi Ophiuchus yulduz turkumi bilan bir boʻlgan bir vaqtda berilgan[6]. Ob’ektga Bayer belgisi M Ilon ham berildi. Iloneltuvchi va Ilon yulduz turkumlari ajratilganda, 1 Ilon tarozi yulduz turkumida, ularning chegaralaridan tashqarida edi. Keyinchalik, yulduz bir oz harakat qildi va Sunbula yulduz turkumiga qoʻshildi[7][8].
1 Ilon 86" burchak masofasida Uilyam Gerschel tomonidan kashf etilgan, 10-chi zohiriy kattalikdagi hamroh yulduzga ega[9][10]. U Quyoshdan 1 Ilon bilan bir xil masofada joylashgan va bir xil toʻgʻri harakatga ega, bu bizga ushbu ob’ektni 1 Ilon bilan jismonan bogʻlangan deb hisoblash imkonini beradi, yulduzlar orasidagi masofa esa 8600 a.b. Hamroh yulduz Quyoshdan bir oz kichikroq va xiraroqdir[11].
Koʻp yulduzlar kataloglarida fon ob’ekti boʻlgan holda, kattaroq burchak masofasida joylashgan 10-kattalikdagi boshqa yulduz ham qayd etilgan[12][13].
Manbalar
[edit | edit source]- ↑ Brown, A. G. A. et al. Gaia Data Release 2: Summary of the contents and survey properties (angl.) // Astronomy and Astrophysics : journal. — EDP Sciences, 2018. — August (vol. 616). — P. A1. — doi:10.1051/0004-6361/201833051. — Bibcode: 2018A&A...616A...1G. — arXiv:1804.09365. Gaia DR2 record for this source at VizieR.
- ↑ Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey. Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity (angl.) // The Astronomical Journal : journal. — IOP Publishing, 2008. — Vol. 135, no. 1. — P. 209. — doi:10.1088/0004-6256/135/1/209. — Bibcode: 2008AJ....135..209M.
- ↑ Anderson, E.; Francis, Ch. XHIP: An extended hipparcos compilation (angl.) // Astronomy Letters : journal. — 2012. — Vol. 38, no. 5. — P. 331. — doi:10.1134/S1063773712050015. — Bibcode: 2012AstL...38..331A. — arXiv:1108.4971.
- ↑ Houk, N.; Swift, C. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5(ingl.) // Michigan Spectral Survey : journal. — 1999. — Vol. 5. — Bibcode:1999MSS...C05....0H.
- ↑ Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey. Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity(ingl.) // The Astronomical Journal : journal. — IOP Publishing, 2008. — Vol. 135, no. 1. — P. 209. — DOI:10.1088/0004-6256/135/1/209. — Bibcode:2008AJ....135..209M.
- ↑ Eggleton, P. P.; Tokovinin, A. A. A catalogue of multiplicity among bright stellar systems(ingl.) // Monthly Notices of the Royal Astronomical Society : journal. — Oxford University Press, 2008. — Vol. 389, no. 2. — P. 869. — DOI:10.1111/j.1365-2966.2008.13596.x. — Bibcode:2008MNRAS.389..869E.
- ↑ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog(ingl.) // The Astronomical Journal : journal. — IOP Publishing, 2001. — Vol. 122, no. 6. — P. 3466. — DOI:10.1086/323920. — Bibcode:2001AJ....122.3466M.
- ↑ Anderson, E.; Francis, Ch. XHIP: An extended hipparcos compilation(ingl.) // Astronomy Letters : journal. — 2012. — Vol. 38, no. 5. — P. 331. — DOI:10.1134/S1063773712050015. — Bibcode:2012AstL...38..331A. —
Arxiv1108.4971
- ↑ Stephenson, C. B. A study of visual binaries having primaries above the main sequence(ingl.) // The Astronomical Journal : journal. — IOP Publishing, 1960. — Vol. 65. — P. 60. — DOI:10.1086/108191. — Bibcode:1960AJ.....65...60S.
- ↑ Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants(ingl.) // Astronomy and Astrophysics : journal. — 2008. — Vol. 480, no. 1. — P. 91. — DOI:10.1051/0004-6361:20078788. — Bibcode:2008A&A...480...91S. —
Arxiv0712.1370
- ↑ Luck, R. Earle; Heiter, Ulrike. Giants in the Local Region(ingl.) // The Astronomical Journal : journal. — IOP Publishing, 2007. — Vol. 133, no. 6. — P. 2464. — DOI:10.1086/513194. — Bibcode:2007AJ....133.2464L.
- ↑ Hoffleit, Dorrit; Jaschek, Carlos. The Bright star catalogue, 1991.
- ↑ Ian Rdipath. „Serpens, the serpent“ (en). 2020-yil 1-noyabrda asl nusxadan arxivlangan. Qaraldi: 2019-yil 28-avgust.