Santamasa

HD 86081 b or Santamasa, meaning 'clouded' in Sanskrit[3], is a gas giant exoplanet that orbits close to its host star HD 86081 or Bibha, completing its orbit in only 2.1375 days. With such a short orbit it belongs to the class of exoplanets known as hot Jupiters. Like most hot Jupiters, the orbit is nearly circular, with an eccentricity of 0.008.[1] On 17 December 2019, the International Astronomical Union, Paris has selected the name 'Santamasa'(सन्तमस् in Sanskrit language) suggested by 13 year old Vidyasagar Daud, class 8th student of Sinhgad Spring Dale Public School, Pune, India for the exoplanet HD 86081B, This large scale election procedure has come up across India. The name echoes the Indian sentiments through the name 'Sant'(संत),Tamas (तमस्) refers to "darkness", similarly the entire name 'Santamasa' matched with the characteristics of the exoplanet i.e. clouded.

HD 86081 b, Santamasa

Discovery
Discovered by	Johnson et al.[1]
Discovery site	California
Discovery date	April 17, 2006
Detection method	radial velocity (N2K Consortium)
Orbital characteristics
Semi-major axis	0.0346±0.0027 AU
Eccentricity	0.0119±0.0047[2]
Orbital period	2.1378431±0.0000031[2] d
Time of periastron	2463695.46±0.14[2]
Argument of periastron	3±23[2]
Semi-amplitude	205.53±0.78[2]
Star	HD 86081

References

1. Johnson, John Asher; et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal. 647 (1): 600–611. arXiv:astro-ph/0604348. Bibcode:2006ApJ...647..600J. doi:10.1086/505173.
2. Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.
3. "Approved names". NameExoworlds. Retrieved 2 January 2020.

External links

• "HD 86081". Exoplanets.