| 释义 |
- References
{{distinguish|Andromeda III}}{{Starbox begin
| name = 3 Andromedae
}}{{Starbox observe
| epoch = J2000
| constell = Andromeda
| ra = {{RA|23|04|10.98185}}[1]
| dec = {{DEC|+50|03|07.5297}}[1]
| appmag_v = 4.64[3]
}}{{Starbox character
| type = giant[4]
| class = K0 IIIb[5]
| b-v = {{Val|1.058|0.003}}[3]
| u-b =
}}{{Starbox astrometry
| radial_v = {{Val|−34.7|0.3}}[7]
| prop_mo_ra = 166.374[1]
| prop_mo_dec = 167.463[1]
| parallax = 17.9785
| p_error = 0.1522
| parallax_footnote = [1]
| absmag_v = 0.97[3]
}}{{Starbox detail
| source =
| mass = 1.71[12]
| radius = 10[13]
| luminosity = 49[12]
| temperature = {{Val|4668|45|fmt=commas}}[12]
| metal_fe = −0.08[4]
| gravity = {{Val|2.61|0.11}}[17]
| rotational_velocity = 1.0[18]
| age_gyr = 2.27[12]
}}{{Starbox catalog
| names = {{odlist | F=3 And | BD=+49° 4028 | HD=218031| HIP=113919 | HR=8780 | SAO=52649 | LTT=16772 }}
}}{{Starbox reference
| Simbad = 3+And
}}{{Starbox end}}3 Andromedae, abbreviated 3 And, is a single[21] star in the northern constellation of Andromeda. 3 Andromedae is the Flamsteed designation. It is visible to the naked eye with an apparent visual magnitude of 4.64.[3] The distance to this star, as determined from an annual parallax shift of {{Val|18|ul=mas}},[1] is 181 light years. It is moving closer to the Earth with a heliocentric radial velocity of −35 km/s,[7] and has a relatively large proper motion, traversing the celestial sphere at a rate of {{Val|0.236|ul=arcsecond}}·yr−1.[25]This is an evolved giant star with a stellar classification of K0 IIIb,[5] where the 'b' suffix indicated a lower luminosity giant. It is a red clump star,[4] which means it is generating energy through helium fusion at its core. This star has an estimated 1.7[12] times the mass of the Sun, and, at the age of 2.3[12] billion years, has expanded to 10 times the Sun's radius.[13] It is radiating 49[12] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,668 K.[12] References1. ^1 2 3 4 5 6 {{cite DR2}}
2. ^1 2 3 4 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | arxiv=1108.4971 | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | postscript=. }}
3. ^1 2 {{citation | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | title=The Perkins catalog of revised MK types for the cooler stars | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}
4. ^1 {{citation | title=Determining Ages of APOGEE Giants with Known Distances | journal=The Astrophysical Journal | display-authors=1 | last1=Feuillet | first1=Diane K. | last2=Bovy | first2=Jo | last3=Holtzman | first3=Jon | last4=Girardi | first4=Léo | last5=MacDonald | first5=Nick | last6=Majewski | first6=Steven R. | last7=Nidever | first7=David L. | volume=817 | pages=40 | year=2016 | bibcode=2016ApJ...817...40F | doi=10.3847/0004-637X/817/1/40 | arxiv=1511.04088 | postscript=. }}
5. ^1 2 3 4 5 6 7 8 {{citation | title=Abundances in the Local Region. I. G and K Giants | last1=Luck | first1=R. Earle | journal=Astronomical Journal | volume=150 | issue=3 | pages= | at=88 | year=2015 | arxiv=1507.01466 | bibcode=2015AJ....150...88L | doi=10.1088/0004-6256/150/3/88 | postscript=. }}
6. ^1 2 3 {{citation | display-authors=1 | last1=Tautvaišienė | first1=G. | last2=Edvardsson | first2=B. | last3=Puzeras | first3=E. | last4=Barisevičius | first4=G. | last5=Ilyin | first5=I. | title=C, N and O abundances in red clump stars of the Milky Way | journal=Monthly Notices of the Royal Astronomical Society | volume=409 | issue=3 | pages=1213–1219 | date=December 2010 | doi=10.1111/j.1365-2966.2010.17381.x | bibcode=2010MNRAS.409.1213T | postscript=. | arxiv=1007.4064 }}
7. ^1 2 {{citation | display-authors=1 | postscript=. | last1=Massarotti | first1=Alessandro | last2=Latham | first2=David W. | last3=Stefanik | first3=Robert P. | last4=Fogel | first4=Jeffrey | title=Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity | journal=The Astronomical Journal | volume=135 | issue=1 | pages=209–231 | date=January 2008 | doi=10.1088/0004-6256/135/1/209 | bibcode=2008AJ....135..209M }}
8. ^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 | postscript=. | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 }}
9. ^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 | postscript=. | volume=32 | issue=11 | pages=759–771 | date=2006 | bibcode=2006AstL...32..759G | arxiv=1606.08053 | doi=10.1134/S1063773706110065 }}
10. ^1 {{citation | last1=Lépine | first1=Sébastien | last2=Shara | first2=Michael M. | title=A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog) | journal=The Astronomical Journal | volume=129 | issue=3 | pages=1483–1522 | date=March 2005 | doi=10.1086/427854 | bibcode=2005AJ....129.1483L | arxiv=astro-ph/0412070 | postscript=. }}
11. ^1 {{citation | display-authors=1 | last1=De Medeiros | first1=J. R. | last2=do Nascimento | first2=J. D. Jr. | last3=Sankarankutty | first3=S. | last4=Costa | first4=J. M. | last5=Maia | first5=M. R. G. | title=Rotation and lithium in single giant stars | journal=Astronomy and Astrophysics | postscript=. | volume=363 | pages=239–243 | date=November 2000 | bibcode=2000A&A...363..239D | arxiv=astro-ph/0010273 }}
}}{{Stars of Andromeda}} 9 : K-type giants|Horizontal-branch stars|High-proper-motion stars|Andromeda (constellation)|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |