41 Cygni

{{Starbox image

| image =

{{Location mark

|image=Cygnus constellation map.svg

|float=center

|alt=

|label=

|position=right

|width=280

|mark=Red circle.svg

|mark_width=10

|mark_link=41 Cygni

|x=342|y=642

}}

| caption = Location of 41 Cyg (circled)

}}

{{Starbox observe

| epoch = J2000

| ra = {{RA|20|29|23.73561}}

| dec = {{DEC|+30|22|06.7968}}

| appmag_v = 4.02

| constell = Cygnus

}}

{{Starbox character

| type = supergiant

| class = F5Ib-II

| b-v = +0.38

| u-b =

| variable = constant

}}

{{Starbox astrometry

| radial_v = −18.20

| prop_mo_ra = 6.89

| prop_mo_dec = −0.87

| parallax = 4.24

| p_error = 0.16

| parallax_footnote =

| absmag_v = −3.32

}}

{{Starbox detail

| mass = {{Val|5.3|0.4}}

| radius = {{Val|27.01|2.51|1.01}}

| luminosity = {{Val|1197|90|fmt=commas}}

| temperature = {{Val|6533|126|283}}

| gravity = {{Val|2.32|0.08}}

| metal_fe = {{Val|0.00|0.07}}

| rotational_velocity = {{Val|9.5|2.0}}

| age_myr = 85

}}

{{Starbox catalog

| names = {{odlist | F=41 Cyg | BD=+29°4057 | FK=1534 | GC= | HD=195295 | HIP=101076 | HR=7834 | SAO=70095 }}

}}

{{Starbox reference

| Simbad = 41+Cygni

}}

41 Cygni is a single 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. 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.

This is a sharp-lined supergiant star with a stellar classification of F5Ib-II. It is 85 million years old with 5.3 times the mass of the Sun and is spinning with a projected rotational velocity of 9.5 km/s. Having exhausted the supply of hydrogen at its core, the star has expanded to 27 times the Sun's radius. It is radiating about 1,200 times the Sun's luminosity from its swollen photosphere at an effective temperature of 6,533 K.

References

{{reflist|refs=

{{cite journal

| 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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| last2=Cay | first2=I. H. | last3=Tektunali | first3=H. G.

| last4=Gulliver | first4=A. F. | last5=Teker | first5=A.

| journal=Astronomische Nachrichten

| volume=329 | issue=1 | pages=26–38 | date=January 2008

| doi=10.1002/asna.200710863 | bibcode=2008AN....329....4A | doi-access=free }}

{{cite journal

| 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

| bibcode=2007A&A...474..653V | arxiv=0708.1752

| doi=10.1051/0004-6361:20078357 | s2cid=18759600

}}

{{cite journal

| last1=Luck | first1=R. Earle

| title=Parameters and Abundances in Luminous Stars

| journal=The Astronomical Journal

| volume=147 | issue=6 | pages=137 | year=2014

| bibcode=2014AJ....147..137L | doi=10.1088/0004-6256/147/6/137 | doi-access=free }}

{{cite journal

| last1=Gontcharov | first1=G. A.

| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system

| journal=Astronomy Letters

| volume=32 | issue=11 | pages=759–771 | year=2006

| bibcode=2006AstL...32..759G | arxiv=1606.08053

| doi=10.1134/S1063773706110065 | s2cid=119231169

}}

{{cite journal

| display-authors=1 | last1=Kovtyukh | first1=V. V.

| last2=Gorlova | first2=N. I. | last3=Belik | first3=S. I.

| title=Accurate luminosities from the oxygen λ7771-4 Å triplet and the fundamental parameters of F-G supergiants

| journal=Monthly Notices of the Royal Astronomical Society

| volume=423 | issue=4 | pages=3268 | year=2012

| bibcode=2012MNRAS.423.3268K | arxiv=1204.4115

| doi=10.1111/j.1365-2966.2012.21117.x | doi-access=free | s2cid=118683158 }}

{{cite journal

| display-authors=1 | last1=Lyubimkov | first1=Leonid S.

| last2=Lambert | first2=David L. | last3=Rostopchin | first3=Sergey I.

| last4=Rachkovskaya | first4=Tamara M. | last5=Poklad | first5=Dmitry B.

| title=Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood

| journal=Monthly Notices of the Royal Astronomical Society

| volume=402 | issue=2 | pages=1369 | year=2010

| bibcode=2010MNRAS.402.1369L | arxiv=0911.1335

| doi=10.1111/j.1365-2966.2009.15979.x | doi-access=free | s2cid=119096173 }}

{{citation

| display-authors=1 | last1=Gray | first1=R. O.

| last2=Napier | first2=M. G. | last3=Winkler | first3=L. I.

| title=The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars

| journal=The Astronomical Journal

| volume=121 | issue=4 | pages=2148–2158

| date=April 2001 | doi=10.1086/319956

| bibcode=2001AJ....121.2148G | doi-access=free }}

{{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 | doi-access=free | postscript=.

| bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}

}}

Category:F-type bright giants

Category:Cygnus (constellation)