Gamma Cancri

Nomenclature

γ Cancri (Latinised to Gamma Cancri) is the star's Bayer designation. It bore the traditional name Asellus Borealis (Latin for "northern donkey"). In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN){{citation | access-date=22 May 2016 | archive-date=10 June 2016 | archive-url=https://web.archive.org/web/20160610172014/https://www.iau.org/science/scientific_bodies/working_groups/280/ | url-status=dead

In Chinese astronomy, Ghost () refers to an asterism consisting of Theta Cancri, Eta Cancri, Gamma Cancri and Delta Cancri. Gamma Cancri itself is known as the third star of Ghost ().

Properties

Gamma Cancri presents as a white A-type subgiant with an apparent magnitude of +4.67. The star is an estimated 171 million years old and is spinning with a projected rotational velocity of 86 km/s. It has 2.35 times the mass of the Sun, 2.53 times the Sun's radius, and shines with a luminosity approximately 43 times greater at an effective temperature of 9,311 K.

It has been included as a member of the Hyades Stream based on its distance, space motion, and estimated age.{{cite journal

References

References

1. {{cite Gaia DR3. 664950414475977728
2. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters.
3. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics.
4. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement.
5. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data.
6. Wilson, Ralph Elmer. (1953). "General catalogue of stellar radial velocities". Carnegie Institute Washington D.C. Publication.
7. (1988). "Starbursts, binary stars, and blue stragglers in local superclusters and groups. I - The very young disk and young disk populations". Astronomical Journal.
8. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal.
9. (2002). "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i". Astronomy and Astrophysics.
10. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal.
11. "gam Cnc".
12. "Naming Stars". IAU.org.
13. Lee, Oliver J.. (November 1910). "Measures on nineteen new spectroscopic binaries". Astrophysical Journal.
14. (September 2008). "A catalogue of multiplicity among bright stellar systems". [[Monthly Notices of the Royal Astronomical Society]].
15. (July 2011). "The Volume-limited A-Star (VAST) survey - I. Companions and the unexpected X-ray detection of B6-A7 stars". Monthly Notices of the Royal Astronomical Society.
16. (January 2011). "KPNO Lunar Occultation Summary. III". The Astronomical Journal.
17. Dixon-Kennedy, Mike. (1998). "Encyclopedia of Greco-Roman Mythology". ABC-CLIO.
18. "WG Triennial Report (2015-2018) - Star Names".
19. Allen, Richard H.. (February 28, 2013). "Star Names: Their Lore and Meaning". [[Courier Corporation]].
20. 陳久金. (2005). "Zhōngguó Xīngzuò Shénhuà". 台灣古籍出版有限公司.
21. link.