From the
Extrasolar Planets Encyclopaedia
: http://exoplanet.eu
Star : HR 8799
THE STAR
-
Basic data
:
-
More data
:
-
Basic data
(from
Simbad
)
-
Most recent ref
(from
ADS
)
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Other Web pages
:
T. Barman mivies
Name
HR 8799
Distance
39.4 (± 1)
pc
Spectral Type
A5V
Apparent Magnitude V
5.96
Mass
1.5 (± 0.3)
M
sun
Age
0.06 (
−0.03
+0.1
)
Gyr
Metallicity [Fe/H]
-0.47
Right Asc. Coord.
23 07 29
Decl. Coord.
+21 08 03
3 PLANETS
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Basic data
:
Name
HR 8799 b
HR 8799 c
HR 8799 d
Discovered in
2008
2008
2008
Mass
7 (
−2
+4
)
M
J
ref.
10 (± 3)
M
J
ref.
10 (± 3)
M
J
ref.
*
-Planet Dist. (proj.)
68
AU
ref.
38
AU
ref.
24
AU
ref.
Orbital period
170000
days
ref.
69000
days
ref.
36500
days
ref.
Eccentricity
< 0.4
ref.
< 0.4
ref.
< 0.4
ref.
Radius
1.1 (± 0.1)
R
J
ref.
1.3 (
−0
+0.1
)
R
J
ref.
1.2 (
−0
+0.1
)
R
J
ref.
Update
27/11/09
13/01/10
27/11/09
-
Molecules detected
:
Name
HR 8799 b
HR 8799 c
HR 8799 d
Molecules
None
None
None
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