KELT-18b

KELT-18b
Discovery
Discovery site	Winer Observatory in Sonoita, Arizona (KELTNorth)
Discovery date	February 6, 2017
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0455 ± 0.00069 AU (6,807,000 ± 103,000 km)
Eccentricity	0
Orbital period (sidereal)	2.87±0.00 d
Inclination	82.90°+0.62°; −0.54°
Time of periastron	2,457,542.53±0.00 JD
Semi-amplitude	127±11 m/s
Star	KELT-18
Physical characteristics
Mean radius	1.57±0.04 RJ
Mass	1.18±0.11 MJ
Mean density	0.380 ± 0.040 g/cm3
Temperature	2,085+39; −38 K

KELT-18b is a hot Jupiter orbiting the F-type main sequence star KELT-18 approximately 1,058 light years away in the northern circumpolar constellation Ursa Major.^[3] The planet was discovered using the transit method, and was announced in June 2017.

^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference McLeod2017 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference Maciejewski2020 was invoked but never defined (see the help page).
^ Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).

[McLeod2017-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference McLeod2017 was invoked but never defined (see the help page).

[Maciejewski2020-2] Cite error: The named reference Maciejewski2020 was invoked but never defined (see the help page).

[GaiaDR2-3] Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).

[1]

[2]

[3]