Gliese 422 b

Gliese 422 b is an unconfirmed exoplanet orbiting the red dwarf Gliese 422 (Innes' star). Gliese 422 b was discovered in 2014. It has a mass of ten times that of Earth, and hence it may be a mega-Earth if solid or a mini-Neptune if gaseous.

It is located within the circumstellar habitable zone (HZ) of Gliese 422, which extends from 0.11 to 0.21 astronomical units. Gliese 422 b's semi-major axis is 6999119000000000000♠0.119+0.014
−0.011 astronomical units and its orbital period is 7001261610000000000♠26.161+0.082
−0.098 Earth days.

References

External links

← Celestial objects within 40–45 light-years →

Primary member type	Celestial objects by systems. Secondary members are listed in small print.

Giant stars

G-type	Capella (42.2±0.5 ly) GIII giant Ab 2 red dwarfs: C D

Subgiant stars

F-type	Beta Trianguli Australis (40.2±0.3 ly) star B Theta Ursae Majoris «Alhaud» (44.0±0.4 ly) K-type main-sequence star Ab red dwarf B

G-type	Beta Aquilae «Alshain» (44.7±0.5 ly) red dwarf B

K-type	HD 104304 (42.1±0.4 ly) Gamma Cephei «Errai» (45.0±0.3 ly) red dwarf B planet b

Main-sequence
stars

F-type	36 Ursae Majoris (41.9±0.4 ly) K-type main-sequence star B star C Upsilon Andromedae (43.9±0.4 ly) red dwarf B 4 planets: b c d e 10 Tauri (44.8±0.5 ly) star B Iota Piscium (45.0±0.5 ly)

G-type	Rho¹ (55) Cancri (40.9±0.4 ly) red dwarf B 5 planets: e b c f d HR 483 (41.2±0.4 ly) red dwarf B Lambda Aurigae «Al Hurr» (41.2±0.5 ly) star B HR 683 (41.4±0.4 ly) i (44) Boötis (41.6±0.3 ly) 2 G-type main-sequence stars: B C HD 147513 (42.0±0.5 ly) white dwarf B planet b HR 6998 (42.4±0.5 ly) 58 Eridani (43.4±0.5 ly) HR 8501 (44.4±0.4 ly) red dwarf B

K-type	Gliese 435 (40.8±0.5 ly) HD 69830 (41.0±0.4 ly) 3 planets: b c d Gliese 142 (41.2±1.2 ly) Gliese 349 (41.4±0.6 ly) HD 158633 (41.7±0.3 ly) HD 40307 (41.8±0.3 ly) 6 planets: b c d e f g Gliese 428 (42.0±1.0 ly) red dwarf B HD 166348 (42.3±0.7 ly) Gliese 204 (42.3±0.5 ly) Gliese 167 (42.7±0.3 ly) HD 190007 (42.8±0.6 ly) SZ Crateris (42.9±1.0 ly) red dwarf B HD 170657 (43.1±0.5 ly) Gliese 146 (43.6±0.5 ly) GJ 1267 (43.6±0.8 ly) Gliese 556 (43.8±0.4 ly) Gliese 69 (43.8±0.7 ly) HD 29697 (44.0±0.8 ly) Gliese 868 (44.2±0.7 ly) Gliese 528 (44.4±0.7 ly) K-type main-sequence star B HD 154577 (44.6±0.6 ly) HD 166 (44.7±0.5 ly) red dwarf B Gliese 615 (44.8±0.5 ly)

M-type (red dwarfs)	Gliese 179 (40.1+2.1 −1.9 ly) planet b Gliese 806 (40.2±0.9 ly) GJ 4360 (40.8±0.7 ly) red dwarf B HD 175224 (41.2±1.6 ly) red dwarf B Innes' star (41.3 ly) planet b GJ 3707 (41.9±1.3 ly) Gliese 521 (42.4±0.9 ly) Gliese 215 (44.7±0.7 ly)

Degenerate
stars

White dwarfs	GRW +70 8247 (42.4+1.3 −1.2 ly) G 29-38 (44.4+2.6 −2.3 ly)

Brown dwarfs

T-type

WISE J0457-0207 (40.8±10.1 ly)
WISE 1051-2138 (~40.8 ly)
ULAS J0034-00 (41.0+2.1
−1.9 ly)
WISE 1542+2230 (~41.1 ly)
WISE 0857+5604 (~42.1 ly)
WISE 2019-1148 (~42.4 ly)
WISE 2134-7137 (~42.7 ly)
WISE 2359-7335 (~42.7 ly)
WISE 1311+0122 (~44.4 ly)
WISE 1952+7240 (~44.4 ly)
WISE 0513+0608 (~44.7 ly)
WISE 2255-3118 (~44.7 ly)
WISE 2226+0440 (~45.0 ly)

Italic are systems without known trigonometric parallax.

2014 in space

Space probes	Chang'e 5-T1 (Moon mission launched) Hayabusa 2 PROCYON (asteroid mission launched) Venus Express (Venus mission ends) Dawn (approaches 1 Ceres) Rosetta/Philae (orbits/landing 67P/Churyumov–Gerasimenko)

Impact events	2014 AA 2014 Ontario fireball

Supernovae	SN 2014J

Notable comets	C/2012 K1 (PANSTARRS) C/2013 A1 (Siding Spring) (Mars close approach) C/2013 R1 (Lovejoy) C/2013 V5 (Oukaimeden) C/2014 E2 (Jacques) C/2014 Q2 (Lovejoy)

NEOs	Asteroid close approaches 2000 EM26 (163132) 2002 CU11 (388188) 2006 DP14 2007 VK184 (410777) 2009 FD 2009 RR 2009 WM1 2014 AF5 2014 DX110 2014 EC 2014 HQ124 2014 LY21 2014 OO6 2014 RC 2014 SC324 2014 XL7

Exoplanets	Kapteyn b Kepler-186f Kepler-296e Kepler-296f GU Piscium b

Discoveries	Rings of Chariklo 2012 VP113 2013 FY27 C/2014 E2 (Jacques) 2014 OL339 (quasi-satellite of Earth)

Deep space rendezvous	MAVEN (Mars orbit injection) Mars Orbiter Mission (Mars orbit injection)

Category:2013 in space — Category:2014 in space — Category:2015 in space

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