41 Cygni: Difference between revisions
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{{short description|Star in the constellation Cygnus}} |
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{{starbox short |
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{{Starbox begin}} |
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|constell= [[Cygnus (constellation)|Cygnus]] |
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{{Starbox image |
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|name= 41 Cygni |
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| image = |
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|type= F5Iab <ref name=SIMBAD> SIMBAD, [http://simbak.cfa.harvard.edu/simbad/sim-basic?Ident=41+Cygni&submit=SIMBAD+search 41 Cygni] (accessed 27 August 2012) </ref> |
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{{Location mark |
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|ra= {{RA|20|29|23.73561}} <ref name=SIMBAD/> |
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|image=Cygnus constellation map.svg |
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|dec= {{DEC|+30|22|06.7968}} <ref name=SIMBAD/> |
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|float=center |
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|alt= |
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|label= |
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|position=right |
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|width=280 |
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|mark=Red circle.svg |
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|mark_width=10 |
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|mark_link=41 Cygni |
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|x=342|y=642 |
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}} |
}} |
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| caption = Location of 41 Cyg (circled) |
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'''41 Cygni''' ('''41 Cyg''') is a [[star]] in the [[constellation]] [[Cygnus (constellation)|Cygnus]]. Its [[apparent magnitude]] is 3.99. |
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}} |
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{{Starbox observe |
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| epoch = J2000 |
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| ra = {{RA|20|29|23.73561}}<ref name=hipparcos/> |
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| dec = {{DEC|+30|22|06.7968}}<ref name=hipparcos/> |
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| appmag_v = 4.02<ref name=luck/> |
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| constell = [[Cygnus (constellation)|Cygnus]] |
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}} |
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{{Starbox character |
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| type = supergiant<ref name=Gray2001/> |
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| class = F5Ib-II<ref name=Gray2001/> |
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| b-v = +0.38<ref name=luck/> |
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| u-b = |
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| variable = constant<ref name=Gray2001/> |
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}} |
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{{Starbox astrometry |
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| radial_v = −18.20<ref name=Gontcharov2006/> |
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| prop_mo_ra = 6.89<ref name=hipparcos/> |
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| prop_mo_dec = −0.87<ref name=hipparcos/> |
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| parallax = 4.24 |
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| p_error = 0.16 |
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| parallax_footnote = <ref name=hipparcos/> |
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| absmag_v = −3.32<ref name=kovtyukh/> |
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}} |
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{{Starbox detail |
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| mass = {{Val|5.3|0.4}}<ref name=leonid09/> |
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| radius = {{Val|27.01|2.51|1.01}}<ref name=GaiaDR2/> |
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| luminosity = {{Val|1197|90|fmt=commas}}<ref name=GaiaDR2/> |
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| temperature = {{Val|6533|126|283}}<ref name=GaiaDR2/> |
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| gravity = {{Val|2.32|0.08}}<ref name=leonid09/> |
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| metal_fe = {{Val|0.00|0.07}}<ref name=leonid09/> |
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| rotational_velocity = {{Val|9.5|2.0}}<ref name=Gray2001/> |
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| age_myr = 85<ref name=leonid09/> |
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}} |
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{{Starbox catalog |
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| names = {{odlist | F=41 Cyg | BD=+29°4057 | FK=1534 | GC= | HD=195295 | HIP=101076 | HR=7834 | SAO=70095 }}<ref name=Simbad/> |
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}} |
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{{Starbox reference |
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| Simbad = 41+Cygni |
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}} |
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{{Starbox end}} |
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'''41 Cygni''' is a single<ref name=Eggleton2008/> [[star]] in the northern [[constellation]] of [[Cygnus (constellation)|Cygnus]], located near the southern border with [[Vulpecula]]. It is visible to the naked eye as a faint, yellow-white hued star with an [[apparent visual magnitude]] of 4.02.<ref name=luck/> The star lies at a distance of around 770 [[light year]]s from the Sun, based on [[stellar parallax|parallax]], and is drifting closer with a [[radial velocity]] of −18 km/s.<ref name=Gontcharov2006/> |
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This is a sharp-lined [[supergiant star]]<ref name=Adelman2008/> with a [[stellar classification]] of F5Ib-II.<ref name=Gray2001/> It is 85<ref name=leonid09/> million years old with 5.3<ref name=leonid09/> times the [[mass of the Sun]] and is spinning with a [[projected rotational velocity]] of 9.5 km/s.<ref name=Gray2001/> Having exhausted the supply of hydrogen at its [[stellar core|core]], the star has expanded to 27<ref name=GaiaDR2/> times the [[Sun's radius]]. It is radiating about 1,200<ref name=GaiaDR2/> times the [[Sun's luminosity]] from its swollen [[photosphere]] at an [[effective temperature]] of 6,533 K.<ref name=GaiaDR2/> |
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==References== |
==References== |
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{{reflist |
{{reflist|refs= |
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<ref name=GaiaDR2>{{cite DR2|1860951540585275264}}</ref> |
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<ref name=Simbad>{{cite simbad | title=41 Cyg | access-date=2019-07-22 }}</ref> |
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<ref name=Adelman2008>{{cite journal |
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| title=Elemental abundance analyses with DAO spectrograms: XXXI. The early F supergiants ν Her (F2 II) and 41 Cyg (F5 Ib-II) |
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| display-authors=1 | last1=Adelman | first1=S. J. |
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| last2=Cay | first2=I. H. | last3=Tektunali | first3=H. G. |
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| last4=Gulliver | first4=A. F. | last5=Teker | first5=A. |
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| journal=Astronomische Nachrichten |
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| volume=329 | issue=1 | pages=26–38 | date=January 2008 |
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| doi=10.1002/asna.200710863 | bibcode=2008AN....329....4A | doi-access=free }}</ref> |
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<ref name=hipparcos>{{cite journal |
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| last1=Van Leeuwen | first1=F. |
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| title=Validation of the new Hipparcos reduction |
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| journal=Astronomy and Astrophysics |
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| volume=474 | issue=2 | pages=653–664 | year=2007 |
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| bibcode=2007A&A...474..653V | arxiv=0708.1752 |
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| doi=10.1051/0004-6361:20078357 | s2cid=18759600 |
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}}</ref> |
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<ref name=luck>{{cite journal |
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| last1=Luck | first1=R. Earle |
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| title=Parameters and Abundances in Luminous Stars |
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| journal=The Astronomical Journal |
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| volume=147 | issue=6 | pages=137 | year=2014 |
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| bibcode=2014AJ....147..137L | doi=10.1088/0004-6256/147/6/137 | doi-access=free }}</ref> |
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<ref name=Gontcharov2006>{{cite journal |
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| last1=Gontcharov | first1=G. A. |
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| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system |
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| journal=Astronomy Letters |
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| volume=32 | issue=11 | pages=759–771 | year=2006 |
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| bibcode=2006AstL...32..759G | arxiv=1606.08053 |
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| doi=10.1134/S1063773706110065 | s2cid=119231169 |
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}}</ref> |
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<ref name=kovtyukh>{{cite journal |
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| display-authors=1 | last1=Kovtyukh | first1=V. V. |
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| last2=Gorlova | first2=N. I. | last3=Belik | first3=S. I. |
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| title=Accurate luminosities from the oxygen λ7771-4 Å triplet and the fundamental parameters of F-G supergiants |
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| journal=Monthly Notices of the Royal Astronomical Society |
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| volume=423 | issue=4 | pages=3268 | year=2012 |
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| bibcode=2012MNRAS.423.3268K | arxiv=1204.4115 |
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| doi=10.1111/j.1365-2966.2012.21117.x | doi-access=free | s2cid=118683158 }}</ref> |
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<ref name=leonid09>{{cite journal |
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| display-authors=1 | last1=Lyubimkov | first1=Leonid S. |
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| last2=Lambert | first2=David L. | last3=Rostopchin | first3=Sergey I. |
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| last4=Rachkovskaya | first4=Tamara M. | last5=Poklad | first5=Dmitry B. |
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| title=Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood |
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| journal=Monthly Notices of the Royal Astronomical Society |
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| volume=402 | issue=2 | pages=1369 | year=2010 |
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| bibcode=2010MNRAS.402.1369L | arxiv=0911.1335 |
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| doi=10.1111/j.1365-2966.2009.15979.x | doi-access=free | s2cid=119096173 }}</ref> |
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<ref name=Gray2001>{{citation |
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| display-authors=1 | last1=Gray | first1=R. O. |
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| last2=Napier | first2=M. G. | last3=Winkler | first3=L. I. |
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| title=The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars |
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| journal=The Astronomical Journal |
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| volume=121 | issue=4 | pages=2148–2158 |
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| date=April 2001 | doi=10.1086/319956 |
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| bibcode=2001AJ....121.2148G | doi-access=free }}</ref> |
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<ref name=Eggleton2008>{{citation |
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| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. |
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| title=A catalogue of multiplicity among bright stellar systems |
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| journal=[[Monthly Notices of the Royal Astronomical Society]] |
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| volume=389 | issue=2 | pages=869–879 | date=September 2008 |
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| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | postscript=. |
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| bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}</ref> |
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}} |
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{{Stars of Cygnus}} |
{{Stars of Cygnus}} |
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[[Category:F-type bright giants]] |
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[[Category:Cygnus (constellation)]] |
[[Category:Cygnus (constellation)]] |
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[[Category: |
[[Category:Durchmusterung objects|BD+29 4057]] |
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[[Category:F-type stars]] |
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[[Category:Flamsteed objects|Cygni, 41]] |
[[Category:Flamsteed objects|Cygni, 41]] |
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[[Category:Henry Draper Catalogue objects|195295]] |
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[[Category:Hipparcos objects|101076]] |
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{{Star-stub}} |
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[[Category:Bright Star Catalogue objects|7834]] |
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Latest revision as of 12:18, 22 August 2024
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 29m 23.73561s[1] |
| Declination | +30° 22′ 06.7968″[1] |
| Apparent magnitude (V) | 4.02[2] |
| Characteristics | |
| Evolutionary stage | supergiant[3] |
| Spectral type | F5Ib-II[3] |
| B−V color index | +0.38[2] |
| Variable type | constant[3] |
| Astrometry | |
| Radial velocity (Rv) | −18.20[4] km/s |
| Proper motion (μ) | RA: 6.89[1] mas/yr Dec.: −0.87[1] mas/yr |
| Parallax (π) | 4.24 ± 0.16 mas[1] |
| Distance | 770 ± 30 ly (236 ± 9 pc) |
| Absolute magnitude (MV) | −3.32[5] |
| Details | |
| Mass | 5.3±0.4[6] M☉ |
| Radius | 27.01+2.51 −1.01[7] R☉ |
| Luminosity | 1,197±90[7] L☉ |
| Surface gravity (log g) | 2.32±0.08[6] cgs |
| Temperature | 6533+126 −283[7] K |
| Metallicity [Fe/H] | 0.00±0.07[6] dex |
| Rotational velocity (v sin i) | 9.5±2.0[3] km/s |
| Age | 85[6] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
41 Cygni is a single[9] star in the northern constellation of Cygnus, located near the southern border with Vulpecula. It is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 4.02.[2] The star lies at a distance of around 770 light years from the Sun, based on parallax, and is drifting closer with a radial velocity of −18 km/s.[4]
This is a sharp-lined supergiant star[10] with a stellar classification of F5Ib-II.[3] It is 85[6] million years old with 5.3[6] times the mass of the Sun and is spinning with a projected rotational velocity of 9.5 km/s.[3] Having exhausted the supply of hydrogen at its core, the star has expanded to 27[7] times the Sun's radius. It is radiating about 1,200[7] times the Sun's luminosity from its swollen photosphere at an effective temperature of 6,533 K.[7]
References
[edit]- ^ a b c d e Van Leeuwen, F. (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. S2CID 18759600.
- ^ a b c Luck, R. Earle (2014). "Parameters and Abundances in Luminous Stars". The Astronomical Journal. 147 (6): 137. Bibcode:2014AJ....147..137L. doi:10.1088/0004-6256/147/6/137.
- ^ a b c d e f Gray, R. O.; et al. (April 2001), "The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars", The Astronomical Journal, 121 (4): 2148–2158, Bibcode:2001AJ....121.2148G, doi:10.1086/319956
- ^ a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ Kovtyukh, V. V.; et al. (2012). "Accurate luminosities from the oxygen λ7771-4 Å triplet and the fundamental parameters of F-G supergiants". Monthly Notices of the Royal Astronomical Society. 423 (4): 3268. arXiv:1204.4115. Bibcode:2012MNRAS.423.3268K. doi:10.1111/j.1365-2966.2012.21117.x. S2CID 118683158.
- ^ a b c d e f Lyubimkov, Leonid S.; et al. (2010). "Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood". Monthly Notices of the Royal Astronomical Society. 402 (2): 1369. arXiv:0911.1335. Bibcode:2010MNRAS.402.1369L. doi:10.1111/j.1365-2966.2009.15979.x. S2CID 119096173.
- ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ "41 Cyg". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-22.
- ^ Eggleton, P. P.; Tokovinin, A. A. (September 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, S2CID 14878976.
- ^ Adelman, S. J.; et al. (January 2008). "Elemental abundance analyses with DAO spectrograms: XXXI. The early F supergiants ν Her (F2 II) and 41 Cyg (F5 Ib-II)". Astronomische Nachrichten. 329 (1): 26–38. Bibcode:2008AN....329....4A. doi:10.1002/asna.200710863.