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HAT-P-27
Sign in to saveHAT-P-27, also known as WASP-40, is the primary of a binary star system about 659 light-years away. It is a G-type main-sequence star. The star's age is similar to the Sun's at 4.4 billion years. HAT-P-27 is enriched in heavy elements, having a 195% concentration of iron compared to the Sun.
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- G8
- Distance
- 659 light-years
- Redshift
- z = -0.00005303862022987271
- Coordinates
- RA 222.7674° · Dec 5.9474°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Distance from Earth
- 204
- Diameter
- 1240000
- Radius
- 0.898
- Mass
- 0.945
- Image
- Yellow dwarf.jpg
Show 16 more facts
- metallicity
- 0.30
- spectral class
- G8V
- catalog code
- WISEA J145104.17+055650.5
- apparent magnitude
- 11.955731
- effective temperature
- 5300
- parallax
- 4.9528
- radial velocity
- -18.2
- surface gravity
- 30000
- luminosity
- 0.53450453
- absolute magnitude
- 5.55
- right ascension component of proper motion
- -28.61
- declination component of proper motion
- -2.774
- right ascension
- 222.76744599988
- declination
- 5.94737459066
- stellar rotational velocity
- 2.4
- age estimated by a dating method
- 4.4
via Wikidata · CC0
~2 min read
Article
2 sectionsContents
- Planetary system
- References
HAT-P-27, also known as WASP-40, is the primary of a binary star system about 659 light-years away. It is a G-type main-sequence star. The star's age is similar to the Sun's at 4.4 billion years. HAT-P-27 is enriched in heavy elements, having a 195% concentration of iron compared to the Sun.
A very dim stellar companion was detected in 2015 at a projected separation of 0.656″ and proven to be physically bound to the system in 2016.