on the Magellanic Cloud clusters NGC 330, NGC 346, NGC 2004, and the N11 region". Astronomy & Astrophysics. 456 (2): 623–638. arXiv:astro-ph/0606405...
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The Astrophysical Journal. 740 (2): 84. arXiv:1107.5061. Bibcode:2011ApJ...740...84Q. doi:10.1088/0004-637X/740/2/84. ISSN 0004-637X. Rosenfeld, Katherine...
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Nursing Act of 2002: Repealing the Philippine Nursing Act of 1991 or RA 7164 2002-11-07 9174 Amending the Balikbayan Program or RA 6768: Providing Additional...
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John Herschel. The French astronomer Abbé Lacaille listed NGC 104, NGC 4833, M 55, M 69, and NGC 6397 in his 1751–1752 catalogue. The low resolution of early...
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NGC NGC 6440 NGC 6520 NGC 6522 NGC 6528 NGC 6530 NGC 6540 NGC 6544 NGC 6553 NGC 6558 NGC 6569 NGC 6603 NGC 6624 NGC 6638 NGC 6642 NGC 6717 NGC 6723 Other...
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retrieved 22 May 2016. "Bulletin of the IAU Working Group on Star Names, No. 2" (PDF). Retrieved 12 October 2016. Allen, R. H. (1963). Star Names: Their...
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NGC NGC 6440 NGC 6520 NGC 6522 NGC 6528 NGC 6530 NGC 6540 NGC 6544 NGC 6553 NGC 6558 NGC 6569 NGC 6603 NGC 6624 NGC 6638 NGC 6642 NGC 6717 NGC 6723 Other...
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1038/s41550-019-0880-2. ISSN 2397-3366. S2CID 118647384. Bulik, Tomasz (2007). "Black holes go extragalactic". Nature. 449 (7164): 799–801. doi:10.1038/449799a...
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Chi Sagittarii (redirect from Chi-2 Sagittarii)
(Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 2 日 This set index article includes a list of related items that share the same...
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NGC NGC 6440 NGC 6520 NGC 6522 NGC 6528 NGC 6530 NGC 6540 NGC 6544 NGC 6553 NGC 6558 NGC 6569 NGC 6603 NGC 6624 NGC 6638 NGC 6642 NGC 6717 NGC 6723 Other...
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the main sequence. The star has around 3.7 times the mass of the Sun and 2.7 times the Sun's radius. It is an estimated 224 million years old and is...
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NGC NGC 6440 NGC 6520 NGC 6522 NGC 6528 NGC 6530 NGC 6540 NGC 6544 NGC 6553 NGC 6558 NGC 6569 NGC 6603 NGC 6624 NGC 6638 NGC 6642 NGC 6717 NGC 6723 Other...
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by: 2 ⋅ R ∗ = ( 55.7 ⋅ 2.32 ⋅ 10 − 3 ) AU 0.0046491 AU / R ⨀ ≈ 27.8 ⋅ R ⨀ {\displaystyle {\begin{aligned}2\cdot R_{*}&={\frac {(55.7\cdot 2.32\cdot...
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Beta2 Sagittarii (redirect from Beta-2 Sagittarii)
The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607. McDonald, I...
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The Astrophysical Journal, 698 (2): 1068–1094, arXiv:0904.0819, Bibcode:2009ApJ...698.1068P, doi:10.1088/0004-637X/698/2/1068, S2CID 51417657. Linsky, Jeffrey...
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December 2021. "The USNO Asteroid Connection" (PDF). The USNO Transit. 1 (2). April–May 2009. Archived (PDF) from the original on September 5, 2014. Retrieved...
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"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...
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of around 370 days. A magnitude +11.2 companion, component C, is orbiting further out at an angular separation of 2.5 arcseconds from the primary. van...
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A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics...
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Theta2 Sagittarii (redirect from Theta-2 Sagittarii)
temperature of 8,113 K. It is spinning with a projected rotational velocity of 45.2 km/s. Theta2 Sagittarii has a pair of visual companions. Component B is a...
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Nu2 Sagittarii (redirect from Nu-2 Sagittarii)
"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...
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Xi2 Sagittarii (redirect from Xi-2 Sagittarii)
NGC NGC 6440 NGC 6520 NGC 6522 NGC 6528 NGC 6530 NGC 6540 NGC 6544 NGC 6553 NGC 6558 NGC 6569 NGC 6603 NGC 6624 NGC 6638 NGC 6642 NGC 6717 NGC 6723 Other...
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This is a single-lined spectroscopic binary with an orbital period of just 2.1 days in a circular orbit. The visible member, component A, is a B-type subgiant...
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a two-component debris disk. The star is about 161 million years old with 2.23 times the mass of the Sun and 1.7 times the Sun's radius. It is radiating...
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spinning with a projected rotational velocity of 8 km/s. HD 167665 is radiating 2.45 times the Sun's luminosity from its photosphere at an effective temperature...
9 KB (752 words) - 00:56, 30 November 2023
The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607. McDonald, I...
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Kappa2 Sagittarii (redirect from Kappa-2 Sagittarii)
310 light years from the Sun. They are receding with a radial velocity of +2.6 km/s. This is a visual binary system with the components orbiting each other...
9 KB (627 words) - 17:37, 18 July 2024
"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...
6 KB (368 words) - 05:08, 21 August 2024
"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...
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on parallax, and it is drifting further away with a radial velocity of +1.2 km/s. It is positioned near the ecliptic and so it can be occulted by the...
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