KELT-16b
{{Short description|Highly irradiated ultra-short period hot Jupiter}}
{{Infobox Planet
| name = KELT-16b
| discovered = 2017
| discovery_method = Transit
| semimajor = 0.02044 AU
| eccentricity = 0.0
| period = 0.9689951 d
| star = TYC 2688-1839-1
| mean_diameter = 1.415 MJ
| mass = 2.75 MJ
| density = 1.20 g/cm
}}
KELT-16b is an hot Jupiter located 1,450 light years from Earth that has an ultra-short orbital period of 0.96 days that orbits around a F-type main sequence star named TYC 2688-1839-1. It has 2.75 Jupiter masses and a radius of 1.415 Jupiter radii.{{Citation |last1=Oberst |first1=Thomas E. |title=KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption |date=2017-01-31 |url=https://arxiv.org/abs/1608.00618 |access-date=2025-04-22 |arxiv=1608.00618 |last2=Rodriguez |first2=Joseph E. |last3=Colón |first3=Knicole D. |last4=Angerhausen |first4=Daniel |last5=Bieryla |first5=Allyson |last6=Ngo |first6=Henry |last7=Stevens |first7=Daniel J. |last8=Stassun |first8=Keivan G. |last9=Gaudi |first9=B. Scott|journal=The Astronomical Journal |volume=153 |issue=3 |page=97 |doi=10.3847/1538-3881/153/3/97 |doi-access=free |bibcode=2017AJ....153...97O |hdl=1969.1/178694 }}{{Cite web |date=2017-02-10 |title=KELT-16 b - NASA Science |url=https://science.nasa.gov/exoplanet-catalog/kelt-16-b/ |access-date=2025-04-22 |language=en-US}}
KElT-16b is highly irradiated due to its host star. This makes the temperature of KELT-16b around 2453 Kelvin. It is possible that KELT-16b may be driving inward towards its star due to Kozai-livdov oscillations (Kozai mechanism). The atmosphere of KELT-16b is probably more Oxygen-rich then Carbon-rich.{{Cite journal |last1=Mancini |first1=L. |last2=Southworth |first2=J. |last3=Naponiello |first3=L. |last4=Baştürk |first4=Ö |last5=Barbato |first5=D. |last6=Biagiotti |first6=F. |last7=Bruni |first7=I. |last8=Cabona |first8=L. |last9=D'Ago |first9=G. |last10=Damasso |first10=M. |last11=Erdem |first11=A. |last12=Evans |first12=D. |last13=Henning |first13=Th |last14=Öztürk |first14=O. |last15=Ricci |first15=D. |date=January 2022 |title=The ultra-hot-Jupiter KELT-16 b: dynamical evolution and atmospheric properties |journal=Monthly Notices of the Royal Astronomical Society |language=en |volume=509 |issue=1 |pages=1447–1464 |doi=10.1093/mnras/stab2691 |doi-access=free |bibcode=2022MNRAS.509.1447M |issn=0035-8711|arxiv=2105.00889 }}