32 Pegasi

{{Short description|Star in the constellation Pegasus}}

{{Starbox begin}}

{{Starbox image

| image =

{{Location mark

|image=Pegasus constellation map.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=32 Pegasi

|x=582|y=290

}}

| caption = Location of 32 Pegasi (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Pegasus

| ra = {{RA|22|21|19.33896}}

| dec = {{DEC|28|19|49.8786}}

| appmag_v = 4.81 {{nowrap|(4.83 + 8.86)}}

}}

{{Starbox character

| type =

| class = B9III

| b-v = +0.00

| u-b = −0.19

| variable =

}}

{{Starbox astrometry

| radial_v = +11.40

| prop_mo_ra = +17.426

| prop_mo_dec = +7.122

| parallax = 5.7814

| p_error = 0.3196

| parallax_footnote =

| absmag_v = −1.82

}}

{{Starbox detail

| component1 = 32 Peg Aa

| mass =

| radius =

| temperature = 11,403

| luminosity = 541

| rotational_velocity = 60

| gravity =

| metal_fe =

| age_myr =

}}

{{Starbox catalog

| names = {{odlist | F=32 Peg | BD=+27°4299 | GC=31253 | HD=212097 | HIP=110371 | HR=8522 | SAO=90440 | CCDM=J22213+2820AF | WDS=J22213+2820Aa,Ab }}

}}

{{Starbox reference

| Simbad = 32+Peg

}}

{{Starbox end}}

32 Pegasi is a binary star system in the northern constellation of Pegasus. It is visible to the naked eye as a faint, blue-white hued point of light with an apparent visual magnitude of 4.81 The system is located approximately 560 light years away from the Sun based on parallax, and is drifting further away with a radial velocity of +11.4 km/s.

The brighter member of this system, designated component Aa, has visual magnitude 4.83 with a stellar classification of B9III, matching a late B-type star with the luminosity class of a giant. It is spinning with a projected rotational velocity of 60 km/s, and is radiating 541 times the luminosity of the Sun from its photosphere at an effective temperature of 11,403 K.

The fainter secondary, component Ab, is of magnitude 8.86 with an angular separation of {{Val|0.50|ul=arcsecond}} along a position angle of 288° from the primary, as of 2005. Visual companions include component B, at a 70.7″ separation from the primary and magnitude 10.73; C, at a separation from B of 3.2″ and magnitude 12.4; as well as D (separation from A of 42.8″ and magnitude 11.9) and E (separation from A of 58.3" and magnitude 11.9).

References

{{reflist|refs=

{{cite simbad | title=32 Peg | access-date=2019-07-01 }}

{{Cite Gaia DR2|1893925997369932928}}

{{cite journal |bibcode=2002yCat.2237....0D |title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system |journal=CDS/ADC Collection of Electronic Catalogues |volume=2237 |last1=Ducati |first1=J. R. |year=2002 }}

{{cite journal | bibcode=1995yCat.5050....0H | title=VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) | journal=VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H | volume=5050 | last1=Hoffleit | first1=D. | last2=Warren | first2=W. H. | year=1995 }}

{{Cite journal | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G| 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| last1=Gontcharov| first1=G. A.|arxiv = 1606.08053 | s2cid=119231169}}

{{cite journal | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | title=XHIP: An extended hipparcos compilation | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | s2cid=119257644 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=V/137D/XHIP&HIP=110371 Vizier catalog entry]

{{cite journal | bibcode=2005A&A...444..941P | doi=10.1051/0004-6361:20053546 | arxiv=astro-ph/0509049| title=An empirical temperature calibration for the Δa photometric system | journal=Astronomy and Astrophysics | volume=444 | issue=3 | pages=941 | year=2005 | last1=Paunzen | first1=E. | last2=Schnell | first2=A. | last3=Maitzen | first3=H. M. | s2cid=119436374 }}

{{cite journal | bibcode=2002ApJ...573..359A | doi=10.1086/340590 | title=Rotational Velocities of B Stars | journal=The Astrophysical Journal | volume=573 | pages=359–365 | year=2002 | last1=Abt | first1=Helmut A. | last2=Levato | first2=Hugo | last3=Grosso | first3=Monica | issue=1 | doi-access=free }}

{{cite journal | bibcode=2001AJ....122.3466M | doi=10.1086/323920 | title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog | journal=The Astronomical Journal | volume=122 | issue=6 | pages=3466 | year=2001 | last1=Mason | first1=Brian D. | last2=Wycoff | first2=Gary L. | last3=Hartkopf | first3=William I. | last4=Douglass | first4=Geoffrey G. | last5=Worley | first5=Charles E. | doi-access=free }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=B/wds/wds&WDS=22213%2B2820 Vizier catalog entry]

{{cite journal | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv = 0806.2878 | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869 | year=2008 | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | doi-access=free | s2cid=14878976 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/MNRAS/389/869/table1&mHR=8522 Vizier catalog entry]

}}

{{Stars of Pegasus}}

{{DEFAULTSORT:32 Pegasi}}

Category:B-type giants

Category:Binary stars

Category:Pegasus (constellation)

BD+27 4299

Pegasi, 32

212097

110371

8522