| appmag_v = 5.25[3] + 11.1[4]
}}{{Starbox character
| class = F0 III[4]
| b-v = +0.22[3]
| u-b = +0.17[3]
| variable =
}}{{Starbox astrometry
| radial_v = +17.2[8]
| prop_mo_ra = −2.955 ± 0.231[9]
| prop_mo_dec = −43.624 ± 0.197[9]
| parallax = 10.2691
| p_error = 0.1452
| parallax_footnote = [1]
| absmag_v = 0.1[12]
}}{{Starbox detail
| source =
| component1 = η CMi A
| mass = 2.16[8]
| radius =
| luminosity = 57.5[8]
| temperature = {{Val|7505|66|fmt=commas}}[8]
| gravity = 3.66[16]
| metal_fe =
| rotational_velocity = 54[17]
| age_myr = 818[16]
}}{{Starbox catalog
| names = {{odlist | B=η CMi | F=5 CMi | BD=+07° 1729 | HD=58923 | HIP=36265 | HR=2851 | SAO=115477 | ADS=6101 | CCDM=07280+0657 | GC=9970 }}[19]
}}{{Starbox reference
| Simbad = eta+CMi
}}{{Starbox end}}Eta Canis Minoris (η CMi, η Canis Minoris) is a binary star[4] system in the equatorial constellation of Canis Minor. It is approximately 318 light years from Earth.
The primary component, η Canis Minoris A, is a yellow-white F-type giant with an apparent magnitude of +5.24. Its companion, η Canis Minoris B, is an eleventh magnitude star located 4 arcseconds from the primary, though is actually around 440 AU from the main star and takes around 5000 years to orbit it.[21]
References
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6. ^1 2 3 4 {{citation | title=Abundances in the Local Region. I. G and K Giants | last1=Luck | first1=R. Earle | journal=The Astronomical Journal | volume=150 | issue=3 | id=88 | pages=23 | date=September 2015 | doi=10.1088/0004-6256/150/3/88 | bibcode=2015AJ....150...88L | arxiv=1507.01466 | postscript=. }}
7. ^1 2 3 {{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 | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv=0806.2878 | postscript=. }}
8. ^1 2 3 {{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}
9. ^1 {{cite simbad | title=eta CMi | accessdate=2017-08-31 | postscript=. }}