HD 64440

{{Starbox begin

| name = HD 64440

}}

{{Starbox image

|image=

{{Location mark

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

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=HD 64440

|x=412|y=935

}}

|caption=Location of HD 64440 (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Puppis

| ra = {{RA|07|52|13.03173}}

| dec = {{DEC|-40|34|32.8318}}

| appmag_v = 3.71 (4.2 + 5.0)

}}

{{Starbox character

| class = K1II+A0.5

| b-v = +1.05

| u-b = +0.75

}}

{{Starbox astrometry

| radial_v = +24.00

| prop_mo_ra = -18.00

| prop_mo_dec = +5.01

| parallax = 9.25

| p_error = 0.83

| parallax_footnote =

| absmag_v = -1.44

}}

{{Starbox orbit

| reference = {{cite web|url=http://www.astro.gsu.edu/wds/orb6.html|title=Sixth Catalog of Orbits of Visual Binary Stars|publisher=United States Naval Observatory|accessdate=2025-02-08}}

| period = 7.104

| axis = 0.066

| inclination = 82.1

| node = 93.6

| periastron = 2011.62

| eccentricity = 0.351

| periarg = 148.5

}}

{{Starbox detail

| source =

| temperature = {{val|4670|72|fmt=commas}}

| luminosity = {{val|405|35}}

| rotational_velocity = 2.3

| gravity = {{val|2.078|0.178}}

| mass = {{val|3.86|0.30}}

| radius = {{val|30.75|1.64}}

| metal_fe = {{val|-0.048|0.052}}

}}

{{Starbox catalog

| names = {{odlist|B=a Puppis|CD=-40°3579|FK5=301|GC=10655|HIP=38414|HR=3080|HD=64440|SAO$219082|WDS=J07522-4035AB}}

}}

{{Starbox reference

| Simbad = a+Puppis

}}

HD 64440, also known as a Puppis, is a spectroscopic binary star in the constellation Puppis. Its apparent magnitude is 3.71. Located around {{convert|108|pc|ly}} distant, the primary is a bright giant of spectral type K1.5II and the secondary is an early A-type star. They orbit with a period of about 7 years and eccentricity 0.351.

References

{{reflist|refs=

{{Cite journal |last1=Ottoni |first1=G. |last2=Udry |first2=S. |last3=Ségransan |first3=D. |last4=Buldgen |first4=G. |last5=Lovis |first5=C. |last6=Eggenberger |first6=P. |last7=Pezzotti |first7=C. |last8=Adibekyan |first8=V. |last9=Marmier |first9=M. |last10=Mayor |first10=M. |last11=Santos |first11=N. C. |last12=Sousa |first12=S. G. |last13=Lagarde |first13=N. |last14=Charbonnel |first14=C. |date=2022-01-01 |title=CORALIE radial-velocity search for companions around evolved stars (CASCADES). I. Sample definition and first results: Three new planets orbiting giant stars |bibcode=2022A&A...657A..87O |journal=Astronomy and Astrophysics |volume=657 |pages=A87 |doi=10.1051/0004-6361/202040078 |issn=0004-6361|arxiv=2201.01528}} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A+A/657/A87&HD=64440 a Puppis' database entry] at VizieR.

{{cite journal | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | last1=Van Leeuwen | first1=F. | s2cid=18759600 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2038414 Vizier catalog entry]

{{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=38414 Vizier catalog entry]

{{cite journal

| 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

| bibcode=2008MNRAS.389..869E

| arxiv=0806.2878

| s2cid=14878976

}}

{{cite journal | bibcode=2014JAVSO..42..443M | title=Sloan Magnitudes for the Brightest Stars | journal=The Journal of the American Association of Variable Star Observers | volume=42 | pages=443 | last1=Mallama | first1=A. | year=2014 | issue=2 }}[http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/other/JAVSO/42.443/ugriz&HD=064440 Vizier catalog entry]

{{cite journal | last=Wilson | first=R. E. | year=1953 | title=General Catalogue of Stellar Radial Velocities | journal=Carnegie Institute Washington D.C. Publication | publisher=Carnegie Institution for Science | bibcode=1953GCRV..C......0W | lccn=54001336 }}

{{cite journal | bibcode=2014A&A...561A.126D | doi=10.1051/0004-6361/201220762 | arxiv=1312.3474 | title=A catalog of rotational and radial velocities for evolved stars | journal=Astronomy & Astrophysics | volume=561 | pages=A126 | year=2014 | last1=De Medeiros | first1=J. R. | last2=Alves | first2=S. | last3=Udry | first3=S. | last4=Andersen | first4=J. | last5=Nordström | first5=B. | last6=Mayor | first6=M. | s2cid=54046583 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/A%2bA/561/A126/table1&HD=64440 Vizier catalog entry]

}}

Category:Puppis

Category:K-type bright giants

Category:Spectroscopic binaries

Category:A-type stars