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Kepler-1972 edit

Nguyễn Trí Nguyên/sandbox
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Lyra
Right ascension	19h 13m 34.8691s
Declination	19° 11′ 54.011″
Apparent magnitude (V)	10.063
Characteristics
Evolutionary stage	main-sequence star
Spectral type	G1V
Astrometry
Radial velocity (Rv)	17.13 km/s
Proper motion (μ)	RA: −3.723 mas/yr ; Dec.: −13.766 mas/yr
Parallax (π)	9.4499 ± 0.0158 mas
Distance	345.1 ± 0.6 ly ; (105.8 ± 0.2 pc)
Details
Mass	1.18 M☉
Radius	1.12 R☉
Surface gravity (log g)	11.1438 cgs
Temperature	5,818 K
Rotation	11.12 days
Rotational velocity (v sin i)	5.04 km/s
Age	~5 Gyr
Other designations
	KOI-3184
Database references
SIMBAD	data

Kepler-1972 or KOI-3184 is a G-Type main sequence Sun-like star located 923 light years away from Earth in Lyra Constellation. The discovery by A. Leleu with transmit method and published in Cornell University

Characteristics edit

Mass, gravity and radius edit

According to Cornell University, its solar mass is 1.18, the solar radius is 1.12 and its gravity is roughly 4.46 cgs^[1]

Temperature edit

Its spectral class is classified as G1V, it would be assumed for its temperature is 5,818 Kelvin^[1]

Planetary System edit

Kepler-1972 has 2 exoplanets orbiting it. These planets are suspected since 2022, for their same mass and radius and their temperature is higher due to their being closest to its host star.^[1]

The Nguyễn Trí Nguyên/sandbox planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.0064±0.0019 $M$ _J	—	7.54425±0.00054	0	—	0.072±0.004 $R$ _J
c	0.0066±0.0020 $M$ _J	—	11.3295±0.0011	0	—	0.078±0.005 $R$ _J

References edit

^ ^a ^b ^c ^d A. Leleu, J.-B. Delisle; R. Mardling, S. Udry; G. Chatel, Y. Alibert; P. Eggenberger (2022), Alleviating the Transit Timing Variations bias in transit surveys. II. RIVERS: Twin resonant Earth-sized planets around Kepler-1972 recovered from Kepler's false positive, arXiv:2201.11459

[Cornell-1] A. Leleu, J.-B. Delisle; R. Mardling, S. Udry; G. Chatel, Y. Alibert; P. Eggenberger (2022), Alleviating the Transit Timing Variations bias in transit surveys. II. RIVERS: Twin resonant Earth-sized planets around Kepler-1972 recovered from Kepler's false positive, arXiv:2201.11459

[1]

User:Nguyễn Trí Nguyên/sandbox

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