| 释义 |
- References
{{Starbox begin
| name = 15 Aquarii
}}{{Starbox observe
| epoch = J2000
| constell = Aquarius
| ra = {{RA|21|18|11.07309}}[1]
| dec = {{DEC|−04|31|10.1276}}[1]
| appmag_v = 5.83[3]
}}{{Starbox character
| class = B7 III[4] or B5 V[5]
| b-v = {{Val|−0.130|0.005}}[3]
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|−9.0|1.0}}[7]
| prop_mo_ra = +12.11[8]
| prop_mo_dec = +12.94[8]
| parallax = 4.5632
| p_error = 0.1345
| parallax_footnote = [1]
| absmag_v = −1.62[3]
}}{{Starbox detail
| source =
| mass = {{Val|5.7|0.2}}[12]
| radius = 3.4[13]
| luminosity = 821.67[3]
| temperature = 14,318[15]
| metal_fe =
| gravity = 3.84[15]
| rotational_velocity = 20[17]
| age_myr = {{Val|65.2|25.1}}[12]
}}{{Starbox catalog
| names = {{odlist | f=15 Aqr | BD=−05° 5512 | HD=202753 | HIP=105164 | HR=8141 | SAO=145278 }}
}}{{Starbox reference
| Simbad = 15+Aqr
}}{{Starbox end}}15 Aquarii, abbreviated 15 Aqr, is a single,[20] blue-white star in the zodiac constellation of Aquarius. 15 Aquarii is the Flamsteed designation. It is a dim star that is just visible to the naked eye under good viewing conditions, having an apparent visual magnitude of 5.83.[3] Based upon an annual parallax shift of {{Val|4.6|ul=mas}},[1] it is located around 710 light years away. At that distance, the visual magnitude is diminished by an extinction of 0.18 due to interstellar dust.[23] It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s.[7] Relative to its neighbors, 15 Aqr has a peculiar velocity of {{Val|28.7|2.9|3.1|u=km/s}} and may (62% chance) be a runaway star.[12]Hube (1970) found a stellar classification of B7 III[4] for this star, which would suggest it is a B-type giant star. However, the Bright Star Catalogue (1964) listed it as a B-type main-sequence star with a class of B5 V,[5] and multiple sources use this instead.[12][17][13][15] The star is roughly 65[12] million years old with a projected rotational velocity of 20 km/s.[17] It has an estimated 5.7[12] times the mass of the Sun and about 3.4[13] times the Sun's radius. 15 Aquarii is radiating 822[3] times the Sun's luminosity from its photosphere at an effective temperature of 14,318 K.[15] References1. ^1 2 3 4 {{cite DR2}}
2. ^1 2 3 4 5 6 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
3. ^1 2 {{citation | last1=van Leeuwen | first1=F. | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | postscript=. }}
4. ^1 2 {{citation | title=The radial velocities of 335 late B-type stars | last1=Hube | first1=Douglas P. | journal=Memoirs of the Royal Astronomical Society | volume=72 | page=233 | year=1970 | bibcode=1970MmRAS..72..233H | postscript=. }}
5. ^1 {{citation | title=Spatial distribution and kinematics of OB stars | last1=Gontcharov | first1=G. A. | journal=Astronomy Letters | volume=38 | issue=11 | pages=694–706 | date=November 2012 | doi=10.1134/S1063773712110035 | bibcode=2012AstL...38..694G | arxiv=1606.09028 | postscript=. }}
6. ^1 2 3 4 5 6 {{citation | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | display-authors=1 | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | issue=1 | pages=190–200 | date=January 2011 | bibcode=2011MNRAS.410..190T | arxiv=1007.4883 | doi=10.1111/j.1365-2966.2010.17434.x | postscript=. }}
7. ^1 {{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. }}
8. ^1 2 3 {{citation | title= B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch? | last1=Strom | first1=Stephen E. | last2=Wolff | first2=Sidney C. | last3=Dror | first3=David H. A. | display-authors=1 | journal=The Astronomical Journal | volume=129 | issue=2 | pages=809–828 | date=2005 | doi=10.1086/426748 | arxiv=astro-ph/0410337 | bibcode=2005AJ....129..809S | postscript=. }}
9. ^1 2 3 {{citation | display-authors=1 | last1=Pasinetti Fracassini | first1=L. E. | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A. | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) | edition=Third | journal=Astronomy and Astrophysics | volume=367 | pages=521–524 | date=February 2001 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 | doi=10.1051/0004-6361:20000451 | postscript=. }}
10. ^1 2 {{citation | title=Catalogue of Bright Stars | last1=Hoffleit | first1=Dorrit | publisher=Yale University Observatory | publication-place=New Haven, Conn. | year=1964 | edition=3rd revised | bibcode=1964cbs..book.....H | postscript=. }}
11. ^1 2 {{citation | title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system | last1=Gontcharov | first1=G. A. | journal=Astronomy Letters | volume=32 | issue=11 | pages=759–771 | date=2006 | bibcode=2006AstL...32..759G | arxiv=1606.08053 | doi=10.1134/S1063773706110065 | postscript=. }}
12. ^1 2 3 4 {{citation | display-authors=1 | last1=Takeda | first1=Yoichi | last2=Kambe | first2=Eiji | last3=Sadakane | first3=Kozo | last4=Masada | first4=Seiji | title=Oxygen and Neon Abundances of B-Type Stars in Comparison with the Sun | journal=Publications of the Astronomical Society of Japan | volume=62 | issue=5 | pages=1239–1248 | date=October 2010 | bibcode=2010PASJ...62.1239T | arxiv=1008.1220 | doi=10.1093/pasj/62.5.1239 | postscript=. }}
}}{{Stars of Aquarius}} 7 : B-type giants|Aquarius (constellation)|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |