Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

V718 Persei

From Wikipedia, the free encyclopedia
Star in the constellation Perseus
V718 Persei

A near-infrared (I band)light curve for V718 Persei, adapted from Grininet al. (2008)[1]
Observation data
EpochJ2000.0      EquinoxJ2000.0
ConstellationPerseus
Right ascension03h 44m 39.241s
Declination+32° 07′ 35.52″
Apparent magnitude (V)15.82
Characteristics
Spectral typeK3V
Variable typeEclipsing system[2]
Astrometry
Distance≈1043 ly
(≈320[1] pc)
Details
Mass1.6[1] M
Radius≈2.3 R
Luminosity3.4[1] L
Temperature5100-5350[1] K
Age5million years
Other designations
V718 Per, CXOPZ J034439.2+320736, CXOPZ 153,2MASS J03443924+320735
Database references
SIMBADdata

V718 Persei is a youngstar in theconstellation ofPerseus, located in the youngopen clusterIC 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.

A planetary system?

[edit]

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 ofJupiter for the perturbing object and an orbital separation of 3.3astronomical units.

The V718 Persei planetary system
Companion
(in order from star)
MassSemimajor axis
(AU)
Orbital period
(days)
EccentricityInclinationRadius
b(unconfirmed)≤6MJ3.31715.50

References

[edit]
  1. ^abcdefGrinin; Stempels, H. C.; Gahm, G. F.; Sergeev, S.; Arkharov, A.; Barsunova, O.; Tambovtseva, L. (2008). "The unusual pre-main-sequence star V718 Per (HMW 15)".Astronomy and Astrophysics.489 (3):1233–1238.arXiv:0808.1069.Bibcode:2008A&A...489.1233G.doi:10.1051/0004-6361:200810349.S2CID 59133715.
  2. ^"V0718 Per".The International Variable Star Index. AAVSO. Retrieved17 February 2022.
  3. ^Herbst; et al. (2010). "The Light Curve of V713 Per (HMW 15): Evidence for Gravitational Sculpting by an Object Embedded in the Circumstellar Disk".American Astronomical Society, AAS Meeting#215,#429.31.215: 429.31.Bibcode:2010AAS...21542931H.
Stars
Bayer
Flamsteed
Variable
HR
HD
Other
Exoplanets
Star
clusters
NGC
Other
Nebulae
NGC
Other
Galaxies
NGC
Other
Galaxy clusters
Astronomical events


Stub icon

This variable star–related article is astub. You can help Wikipedia byadding missing information.

Stub icon

This exoplanet related article is astub. You can help Wikipedia byadding missing information.

Retrieved from "https://en.wikipedia.org/w/index.php?title=V718_Persei&oldid=1328167586"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2026 Movatter.jp