HAT-P-4
Sign in to saveAlso known as BD+36°2593
HAT-P-4 is a wide binary star consisting of a pair of G-type main-sequence stars in the constellation of Boötes. It also has the BD designation BD+36°2593.
Astronomical data · SIMBAD
- Object type
- Em*
- Spectral type
- F
- Distance
- 1,050 light-years
- Redshift
- z = -0.0000049000445532243475
- Coordinates
- RA 229.9913° · Dec 36.2296°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Boötes
- Child body
- HAT-P-4 b
- Distance from Earth
- 310
- Diameter
- 2090000
- Radius
- 1.59
- Mass
- 1.26
- Image
- Exoplanet Comparison HAT-P-4 b.png
Show 17 more facts
- catalog code
- TYC 2569-1599-1
- spectral class
- G1
- effective temperature
- 5890
- radial velocity
- -2.7
- apparent magnitude
- 10.1
- parallax
- 3.0919
- metallicity
- 0.29
- epoch
- J2000.0
- stellar rotational velocity
- 5.5
- surface gravity
- 11970
- luminosity
- 2.9013202
- right ascension component of proper motion
- -21.513
- declination component of proper motion
- -24.255
- Commons category
- HAT-P-4
- right ascension
- 229.99133484049
- declination
- 36.22964946633
- age estimated by a dating method
- 4.2
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
5 sectionsContents
- Binary companion
- Planetary system
- See also
- References
- External links
HAT-P-4 is a wide binary star consisting of a pair of G-type main-sequence stars in the constellation of Boötes. It also has the BD designation BD+36°2593.
The star exhibits an infrared excess of unknown origin.
Excerpted from Wikipedia’s “HAT-P-4” article, available under the CC BY-SA 4.0 licence.