Kepler-174
{{Short description|Main sequence star in constellation of Lyra}}
{{Notability|Astro|date=February 2022}}
{{Starbox begin
| name = Kepler-174
}}
{{Starbox observe
| epoch = J2000
| constell = Lyra{{cite web |url=http://djm.cc/constellation.html |title=Finding the constellation which contains given sky coordinates |date=2 August 2008 |website=djm.cc}}
| dec = {{DEC|+43|49|55.4994}}
| appmag_v = {{val|14.530|0.057}}
}}
{{Starbox character
| type = Main sequence
| class = K
| appmag_1_passband = G
| appmag_1 = {{val|14.274|0.003}}
| appmag_2_passband = J
| appmag_2 = {{val|12.791|0.021}}
| appmag_3_passband = H
| appmag_3 = {{val|12.293|0.021}}
| appmag_4_passband = K
| appmag_4 = {{val|12.184|0.018}}
}}
{{Starbox astrometry
| radial_v = {{val|-101.06|3.94}}
| prop_mo_ra = {{val|-38.959|0.016}}
| prop_mo_dec = {{val|-18.117|0.017}}
| parallax = 2.6013
| p_error = 0.0142
| absmag_v =
| absmag_bol =
}}
{{Starbox detail
| mass = {{val|0.710|0.041|0.036}}
| radius = {{val|0.680|0.032|0.028}}
| luminosity_bolometric =
| habitable_inner =
| habitable_outer =
| gravity = {{val|4.630|0.024|0.030}}
| temperature = {{val|4724.0|25.0}}
| metal_fe = {{val|-0.360|0.124}}
| rotation =
| rotational_velocity =
| age_gyr = {{val|4.900|5.260|3.140}}
}}
{{Starbox catalog
| names = {{odlist | 2MASS = J19094540+4349555 | Kepler = 174 | KIC = 8017703 | KOI = 518 | TIC = 158434144}}
}}
{{Starbox reference
| Simbad = Kepler-174
}}
{{Starbox end}}
Kepler-174 is a K-type main-sequence star located in the Milky Way galaxy at a distance of about {{convert|1254|ly|pc|lk=on|abbr=off}} away from the Sun. It is located inside the boundaries of the Lyra constellation, but it is too dim to be visible to the unaided eye and is not part of the main outline.
Planetary system
Kepler-174 has three confirmed super-Earth planets orbiting it, Kepler-174b, Kepler-174c and Kepler-174d, discovered by the Kepler space telescope using the transit method. The discovery of all three planets was announced in 2014 by a team led by Jason F. Rowe, as part of a study validating hundreds of Kepler planets. Kepler-174d is notable as it is within the star's habitable zone, meaning it is potentially habitable.{{Cite web|url=https://exoplanets.nasa.gov/exoplanet-catalog/1863/kepler-174-d/|title=Exoplanet-catalog|website=Exoplanet Exploration: Planets Beyond our Solar System}}{{Cite web|url=https://www.nytimes.com/interactive/science/space/keplers-tally-of-planets.html|title=Kepler's Tally of Planets|website=www.nytimes.com}}
{{Orbitbox planet begin
| name = Kepler-174
}}
{{Orbitbox planet
| exoplanet = b
| mass_earth =
| semimajor = 0.100
| period = {{val|13.981790|0.000024}}
| radius_earth = {{val|1.96|0.11}}
| eccentricity =
}}
{{Orbitbox planet
| exoplanet = c
| mass_earth =
| semimajor = 0.214
| period = {{val|44.000529|0.000265}}
| radius_earth = {{val|1.49|0.09}}
| eccentricity =
}}
{{Orbitbox planet
| exoplanet = d
| mass_earth =
| semimajor = 0.677
| period = {{val|247.353730|0.002001}}
| radius_earth = {{val|2.19|0.13}}
| eccentricity =
}}
{{Orbitbox end}}
In popular culture
The planet Kepler-174d is mentioned in the Star Trek: Discovery episode, Terra Firma, Part 1.{{cite news|url=http://blog.trekcore.com/2020/12/star-trek-discovery-review-terra-firma-part-1/|title=STAR TREK: DISCOVERY Review: "Terra Firma, Part 1"|work=Trek Core|date=10 December 2020|accessdate=17 December 2020}} in which it is inhabited and is referred to as "quite beautiful".
References
{{reflist|refs=
{{cite simbad |title=Kepler-174 |access-date=3 February 2023}}
{{Cite Gaia DR3|2106008493152187392}}
{{cite web |title=Kepler-174 |url=https://exoplanetarchive.ipac.caltech.edu/overview/Kepler-174 |website=NASA Exoplanet Archive |accessdate=3 February 2023}}
}}
{{Lyra}}
Category:K-type main-sequence stars