V718 Persei

V718 Persei is a young star in the constellation of Perseus, located in the young open cluster IC 348. The star has several designations derived from the cluster in which it belongs (H 187, TJ 108, HMW 15, LRL 35, NTC 5401, LNB 90—all require the prefix "IC 348"). The star shows hints of an occulting body of unclear nature, likely planetary.

V718 Persei

A near-infrared (I band) light curve for V718 Persei, adapted from Grinin et al. (2008)[1]
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Perseus
Right ascension	03h 44m 39.241s
Declination	+32° 07′ 35.52″
Apparent magnitude (V)	15.82
Characteristics
Spectral type	K3V
Variable type	Eclipsing system[2]
Astrometry
Distance	≈1043 ly (≈320[1] pc)
Details
Mass	1.6[1] M☉
Radius	≈2.3 R☉
Luminosity	3.4[1] L☉
Temperature	5100-5350[1] K
Age	5 million years
Other designations
V718 Per, CXOPZ J034439.2+320736, CXOPZ 153, 2MASS J03443924+320735
Database references
SIMBAD	data

A planetary system?

In 2008 Grinin et al. invoke the possible presence of a substellar object to explain peculiar and periodic eclipses occurring to the young star every 4.7 years.^[1] The presence of a planetary object is still invoked in a recent research.^[3] They infer a maximum mass of 6 times that of Jupiter for the perturbing object and an orbital separation of 3.3 astronomical units.

The V718 Persei planetary system

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b (unconfirmed)	≤6 MJ	3.3	1715.5	0	—	—