This article is about j Puppis. For J Puppis, see HD 64760.
11 Puppis
Location of 11 Puppis (circled)
Observation data Epoch J2000 Equinox J2000
Constellation
Puppis
Right ascension
07h 56m 51.53900s[1]
Declination
−22° 52′ 48.4340″[1]
Apparent magnitude (V)
4.20[2]
Characteristics
Spectral type
F7/8 II[2]
U−B color index
+0.44[3]
B−V color index
+0.72[3]
Astrometry
Radial velocity (Rv)
+13.30[4] km/s
Proper motion (μ)
RA: −30.42[1] mas/yr Dec.: +11.49[1] mas/yr
Parallax (π)
6.25 ± 0.23 mas[1]
Distance
520 ± 20 ly (160 ± 6 pc)
Absolute magnitude (MV)
−1.82[2]
Details
Mass
2.7[5]M☉
Luminosity
515[2]L☉
Surface gravity (log g)
1.99[6] cgs
Temperature
5,868[6] K
Metallicity [Fe/H]
+0.09[6] dex
Rotational velocity (v sin i)
13.8[7] km/s
Other designations
j Pup, 11 Pup, BD−22°2087, CD−22°5403, FK5 2615, GC 10756, HD 65228, HIP 38835, HR 3102, SAO 174852, GSC 06553-03890[8]
Database references
SIMBAD
data
11 Puppis is a single[9] star in the southern constellation of Puppis, located approximately 522 light years away based on parallax.[1] It has the Bayer designation j Puppis; 11 Puppis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white star with an apparent visual magnitude of 4.20.[2] It is moving further from the Earth with a heliocentric radial velocity of +13.3 km/s.[4]
This is an evolved bright giant star with a stellar classification of F7/8 II.[2] The spectrum displays a deficit of carbon, an excesses of nitrogen, and a high abundance of lithium.[5] The first two anomalies suggest the giant has passed through a deep convection stage that would have also exhausted the lithium supply, indicating the current lithium abundance is of recent production. The star has 2.7[5] times the mass of the Sun and is radiating 515[2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,868 K.[6]
^ abcdefVan 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. Vizier catalog entry
^ abMermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
^ abGontcharov, 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.
^ abcLyubimkov, L. S.; Petrov, D. V. (September 2017). "Analysis of the Non-LTE Lithium Abundance for a Large Sample of F-, G-, and K-Giants and Supergiants". Astrophysics. 60 (3): 333–347. arXiv:1710.04852. Bibcode:2017Ap.....60..333L. doi:10.1007/s10511-017-9487-4. S2CID 119333383.
^ abcdEarle Luck, R. (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.
^De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
^"j Pup". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 September 2012.
^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.
11Puppis is a single star in the southern constellation of Puppis, located approximately 522 light years away based on parallax. It has the Bayer designation...
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k Puppis (k Pup, k Puppis) is a Bayer designation given to an optical double star in the constellation Puppis, the two components being k1 Puppis and...
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L2 Puppis (also known as HD 56096) is a giant star in the constellation of Puppis and is located between the bright stars Canopus and Sirius. It is a semi-regular...
Rho Puppis (ρ Puppis, abbreviated Rho Pup, ρ Pup), formally named Tureis /ˈtjʊəreɪs/, is a star in the southern constellation of Puppis. With an average...
Sigma Puppis, Latinized from σ Puppis, is a binary star system in the southern constellation Puppis. It has an apparent visual magnitude of 3.25, which...
Pi Puppis, Latinized from π Puppis, also named Ahadi, is the second-brightest star in the southern constellation of Puppis. It has an apparent visual...
c Puppis, also known as HD 63032 and HR 3017, is a spectroscopic binary star in the constellation Puppis. Its apparent magnitude is of 3.61, making it...
χ Puppis, Latinised as Chi Puppis, is a single star in the southern constellation of Puppis. It has a white hue and is faintly visible to the eye at night...
3 Puppis (3 Pup) is a supergiant star in the constellation Puppis. It is a very rare A[e] supergiant, referred to as a B[e] star despite its spectral...
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Giampetro Puppi (20 November 1917 – 25 December 2006) was an Italian physicist who is known for his contribution to the theory of weak interactions. Puppi was...
KQ Puppis (KQ Pup) is a spectroscopic binary located about 2,700 light-years from Earth in the constellation Puppis. A red supergiant star and a B-type...
NW Puppis, also known as υ2 Puppis, is a star in the constellation Puppis. Located around 910 light-years distant, it shines with a luminosity approximately...
QW Puppis (QW Pup) is a class F3V (yellow-white dwarf) star in the constellation Puppis. Its apparent magnitude is 4.49 and it is approximately 69.5 light...
NV Puppis (NV Pup), also known as υ1 Puppis, is a class B2V (blue main-sequence) star in the constellation Puppis. Its apparent magnitude is 4.67 and it...
20 Puppis is a solitary star in the southern constellation of Puppis. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual...
1 Puppis is a single star in the southern constellation of Puppis. It lies in the northern part of the constellation at a distance of about 790 ly, east...
V Puppis (V Pup) is a star system in the constellation Puppis. Its apparent magnitude is 4.41. There is a binary star system at the center with a B1 dwarf...
19 Puppis is a binary star system in the southern constellation of Puppis, near the northern border with Hydra and Monoceros. It is visible to the naked...
WR 9 is a spectroscopic binary in the constellation Puppis consisting of a Wolf-Rayet star and a class O star. It is around 12,000 light years away. WR...
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