Psi Andromedae

{{Short description|Triple star system in the constellation Andromeda}}

{{Starbox begin

| name = Psi Andromedae

}}

{{Starbox image

| image =

File:Andromeda IAU.svg

12px

| caption = Location of ψ Andromedae (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Andromeda

| ra = {{RA|23|46|02.04703}}

| dec = {{DEC|+46|25|12.9865}}

| appmag_v = 4.95

}}

{{Starbox character

| class = G5 Ib + B9

| b-v = +1.085

| u-b = +0.83

| variable =

}}

{{Starbox astrometry

| radial_v = -23.62

| prop_mo_ra = {{val|8.446|(132)}}

| prop_mo_dec = {{val|−7.143|(109)}}

| parallax = 1.6352

| p_error = 0.1627

| parallax_footnote =

| absmag_v = –3.039

}}

{{Starbox detail

| component1 = ψ And A

| mass = 5.4

| radius = 47.58

| luminosity = {{val|1049|161|fmt=commas}}

| temperature = 4,990

| gravity = 1.50

| metal_fe = +0.10

| rotational_velocity =

| age_myr = 79

| component2 = B

| mass2 = 2.6

| temperature2 = 11,000

}}

{{Starbox catalog

| names = {{odlist|F=20 And|BD=+45°4321|FK5=1622|HD=223047|HIP=117221|HR=9003|SAO=53355|PPM=64635}}{{cite simbad|title=* psi And|access-date=28 January 2018}}

}}

{{Starbox reference

| Simbad = HD+223047

}}

Psi Andromedae (ψ And, ψ Andromedae) is the Bayer designation for a triple star system in the northern constellation of Andromeda. The combined apparent visual magnitude of this system is 4.95. Based upon parallax measurements, is roughly {{Convert|2000|ly|pc|abbr=off|lk=on}} from Earth.

The primary component has a stellar classification of G5 Ib, which matches the spectrum of an evolved supergiant star. It forms a pair with a star of type B9 with an unknown luminosity class separated by 0.28 arcseconds. A third component has a separation of 0.14 arcseconds. Details of the orbital arrangement remain uncertain.

Naming

In Chinese, {{lang|zh|螣蛇}} ({{lang|zh-Latn|Téng Shé}}), meaning Flying Serpent, refers to an asterism consisting of ψ Andromedae, α Lacertae, 4 Lacertae, π² Cygni, π¹ Cygni, HD 206267, ε Cephei, β Lacertae, σ Cassiopeiae, ρ Cassiopeiae, τ Cassiopeiae, AR Cassiopeiae, 9 Lacertae, 3 Andromedae, 7 Andromedae, 8 Andromedae, λ Andromedae, κ Andromedae and ι Andromedae,. Consequently, the Chinese name for ψ Andromedae itself is {{lang|zh|螣蛇二十}} ({{lang|zh-Latn|Téng Shé èrshí}}, {{langx|en|the Twentieth of Flying Serpent}}).{{in lang|zh}} [http://aeea.nmns.edu.tw/2006/0607/ap060707.html AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 7 日] {{Webarchive|url=https://web.archive.org/web/20110521232711/http://aeea.nmns.edu.tw/2006/0607/ap060707.html |date=2011-05-21 }}

References

{{Reflist|refs=

{{citation | display-authors=1 | title=Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants | last1=Soubiran | first1=C. | last2=Bienaymé | first2=O. | last3=Mishenina | first3=T. V. | last4=Kovtyukh | first4=V. V. | journal=Astronomy and Astrophysics | volume=480 | issue=1 | pages=91–101 |date=March 2008 | doi=10.1051/0004-6361:20078788 | bibcode=2008A&A...480...91S | postscript=. |arxiv = 0712.1370 | s2cid=16602121 }}

{{citation | last1=Argue | first1=A. N. | title=UBV photometry of 550 F, G and K type stars | journal=Monthly Notices of the Royal Astronomical Society | volume=133 | pages=475–493 | year=1966 | issue=4 | bibcode=1966MNRAS.133..475A | postscript=. | doi=10.1093/mnras/133.4.475| doi-access=free }}

{{Cite journal |last1=McDonald |first1=I. |last2=Zijlstra |first2=A. A. |last3=Watson |first3=R. A. |date=2017-10-01 |title=Fundamental parameters and infrared excesses of Tycho-Gaia stars |journal=Monthly Notices of the Royal Astronomical Society |volume=471 |issue=1 |pages=770–791 |doi=10.1093/mnras/stx1433 |doi-access=free |issn=0035-8711|arxiv=1706.02208 |bibcode=2017MNRAS.471..770M }} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/MNRAS/471/770&RAJ2000=356.508527 Psi Andromedae's database entry] at VizieR.

{{citation | last1=Parsons | first1=Sidney B. | title=New and Confirmed Triple Systems with Luminous Cool Primaries and Hot Companions | journal=The Astronomical Journal | volume=127 | issue=5 | pages=2915–2930 |date=May 2004 | doi=10.1086/383546 | bibcode=2004AJ....127.2915P | postscript=. | doi-access=free }}

}}

Category:Andromeda (constellation)

Category:Spectroscopic binaries

Category:G-type supergiants

Category:Durchmusterung objects