- References
{{Starbox begin
| name = 37 Cancri
}}{{Starbox observe
| epoch = J2000.0
| constell = Cancer
| ra = {{RA|08|38|05.17248}}[1]
| dec = {{DEC|+09|34|28.6006}}[1]
| appmag_v = 6.542[3]
}}{{Starbox character
| type = main sequence[4]
| class = A1 V[5]
| b-v = {{Val|−0.010|0.006}}[6]
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|+22.1|2.2}}[6]
| prop_mo_ra = −28.271[1]
| prop_mo_dec = −4.237[1]
| parallax = 6.5093
| p_error = 0.0735
| parallax_footnote = [1]
| absmag_v = 1.30[6]
}}{{Starbox detail
| source =
| mass = {{Val|2.66|0.05}}[4]
| radius = 1.8[13]
| luminosity = {{Val|30.9|3.0|2.7}}[3]
| temperature = 9,830[3]
| gravity = 4.30[3]
| metal_fe = {{Val|−0.21|0.13}}[3]
| rotation =
| rotational_velocity = {{Val|35.2|1.1}}[3]
| age_gyr =
}}{{Starbox catalog
| names = {{odlist | F=37 Cnc | BD=+10°1840 | FK5= | HD=73316 | HIP=42353 | HR=3412 | SAO=116975 }}
}}{{Starbox reference
| Simbad = 37+Cnc
}}{{Starbox end}}37 Cancri is a star in the zodiac constellation of Cancer. It is a challenge to view with the naked eye, having an apparent magnitude of 6.54.[3] The star is moving away from the Earth with a heliocentric radial velocity of +22 km/s, having come as close as {{Convert|75.29|pc|ly|0|disp=out|abbr=off}} some 2.7 million years ago.[6]This is an ordinary A-type main-sequence star with a stellar classification of A1 V,[5] which indicates it is generating energy through hydrogen fusion at its core. It is spinning with a projected rotational velocity of 35 km/s.[3] The star has 2.7[4] times the mass of the Sun and around 1.8[13] times the Sun's radius. It is radiating 31 times the luminosity of the Sun from its photosphere at an effective temperature of 9,830 K.[3] References1. ^1 2 3 4 5 {{Cite Gaia DR2|598227272898162944}}
2. ^1 2 {{citation | display-authors=1 | last1=Pasinetti Fracassini | first1=L. E. | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A. | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) | edition=Third | journal=Astronomy and Astrophysics | volume=367 | pages=521–524 | date=February 2001 | doi=10.1051/0004-6361:20000451 | postscript=. | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 }}
3. ^1 2 3 4 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | arxiv=1108.4971 | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | postscript=. }}
4. ^1 2 {{citation | postscript=. | last1=Cowley | first1=A. | last2=Cowley | first2=C. | last3=Jaschek | first3=M. | last4=Jaschek | first4=C. | title=A study of the bright A stars. I. A catalogue of spectral classifications | display-authors=1 | journal=Astronomical Journal | volume=74 | pages=375–406 | date=April 1969 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C }}
5. ^1 2 3 4 5 6 7 8 9 {{citation | title=Normal A0-A1 stars with low rotational velocities. I. Abundance determination and classification | display-authors=1 | last1=Royer | first1=F. | last2=Gebran | first2=M. | last3=Monier | first3=R. | last4=Adelman | first4=S. | last5=Smalley | first5=B. | last6=Pintado | first6=O. | last7=Reiners | first7=A. | last8=Hill | first8=G. | last9=Gulliver | first9=A. | journal=Astronomy & Astrophysics | volume=562 | id=A84 | pages=21 | date=February 2014 | doi=10.1051/0004-6361/201322762 | bibcode=2014A&A...562A..84R | arxiv=1401.2372 | postscript=. }}
6. ^1 2 3 {{citation | last1=Zorec | first1=J. | last2=Royer | first2=F. | last3=Asplund | first3=Martin | last4=Cassisi | first4=Santi | last5=Ramirez | first5=Ivan | last6=Melendez | first6=Jorge | last7=Bensby | first7=Thomas | last8=Feltzing | first8=Sofia | title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities | display-authors=1 | journal=Astronomy and Astrophysics | volume=537 | pages=A120 | year=2012 | bibcode=2012A&A...537A.120Z | arxiv=1201.2052 | doi=10.1051/0004-6361/201117691 | postscript=. }}
}}{{Stars of Cancer}} 7 : A-type main-sequence stars|Cancer (constellation)|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |