do not follow here
Stellar Catalog
more icon
Nearby stars catalogue
more icon
HR 8799
more icon

Star HR 8799

White-Blue star HR 8799 is located 133 light years away from the Sun. It is a single star of spectral class F0+VkA5mA5 C, that has 156 % of solar mass. There are multiple known exoplanets in this system.
Sun distance
133 light years

HR 8799

White-Blue star (spectral class F0+VkA5mA5 C)

Location

Ascension iconRight ascension: 23h 7m 28.72s
Declination iconDeclination: 21° 8' 3.311'' (northern hemisphere)
Parallax iconParallax: 24.462
Distance iconSun distance: 133.332 ly | 40.9 pc

Basic characteristic

icon weight
Mass: 156 % M Sun | 1634 M Jupiter
radius icon
Size: 150 % R Sun | 14.9 R Jupiter
temperature iconTemperature: 7430 K | 1.29 T Sun
time iconAge: 0.03 billions years | 0.01 Sun
luminosity iconLuminosity: 4.92 L Sun

4 exoplanets

HR 8799 e 16.4 AU 3051.9 M 13.1 R 18000 days
HR 8799 d 27 AU 2638.6 M 13.5 R 41054 days
HR 8799 c 42.9 AU 2638.6 M 14.6 R 82145 days
HR 8799 b 68 AU 2225.3 M 13.5 R 164250 days

Photometry

Magnitude iconApparent magnitude (V): 6
Magnitude iconAbsolute magnitude (V): 2.9
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
More about HR 8799
Star HR 8799 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 50 % bigger than the Sun and temperature on its surface is around 7430 K (7157 °C), which is about 129 % of Sun's temperature.
      HR 8799 can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia. 
Other designations of this star
HD 218396, V342 Pegasi, BD+20 5278, FK5 3850, GC 32209, HIP 114189, PPM 115157, SAO 91022, TYC 1718-2350-1
External sources
Get your next news from nearby stars
This is a new project, and partly still in development. There will be soon more information and functions. We would love your support on social media.
Visit profile on X