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HR 8799 b

Astronomers Find Elusive Planets in Decade-Old Hubble Data · NASA · NASA — public domain

EntityQ1334636· pop 16· linked from 156 articles

Also known as HD 218396b, TIC 245368902b

extrasolar planet

Astronomical data · SIMBAD

Object type
Pl
Distance
133 light-years
Coordinates
RA 346.8696° · Dec 21.1343°
View on SIMBAD →

via SIMBAD · CDS Strasbourg

Exoplanet data

Host star
HR 8799
Discovered
2008
Discovered by
Gemini Observatory
Orbital period
170000 days
Radius
13 × Earth
Mass
2000 × Earth
Equilibrium temp
1200 K
Distance
41.24 pc

via NASA Exoplanet Archive

Wikidata facts

Instance of
double star
Constellation
Pegasus
Parent body
HR 8799
Radius
0.6
Mass
7.0
Orbital period
166510.17
Image
Exoplanet Comparison HR 8799 b.png
Show 14 more facts
catalog code
TIC 245368902b
Commons category
HR 8799 b
time of discovery or invention
2008-11-00
site of astronomical discovery
Gemini Observatory
right ascension
346.86964871069460
declination
21.13425059274499
epoch
J2000.0
semi-major axis of an orbit
68
orbital eccentricity
0.0
orbital inclination
30.27
angular distance
1.725888
right ascension component of proper motion
108.301
declination component of proper motion
-49.480
parallax
24.2175
Sources (2)

via Wikidata · CC0