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HD 12661 c

Coordinates: Sky map

Sky map

02^h 04^m 34.36^s, +25° 24′ 53″

From Wikipedia, the free encyclopedia

Extrasolar planet in the constellation Aries

HD 12661 c
Discovery
The exoplanet HD 12661 c (min mass ~1.57 MJ)
Discovered by	Fischer et al.^[1]
Discovery site	California & Carnegie Planet Search USA
Discovery date	April 1, 2003
Detection method	Radial velocity
Orbital characteristics
Semi-major axis	2.56 AU (383,000,000 km)
Eccentricity	0.031 ± 0.022
Orbital period (sidereal)	1708 ± 14d
Time of periastron	2,452,130 ± 330
Argument of periastron	38
Semi-amplitude	29.27 ± 0.88
Star	HD 12661

HD 12661 c is a giantexoplanet one and a half times the mass ofJupiter orbiting aroundHD 12661.^[1]

References

^^a ^bFischer, Debra A.; et al. (2003)."A Planetary Companion to HD 40979 and Additional Planets Orbiting HD 12661 and HD 38529".The Astrophysical Journal.586 (2):1394–1408.Bibcode:2003ApJ...586.1394F.doi:10.1086/367889.

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Constellation of Aries

Bayer	α (Hamal) β (Sheratan) γ (Mesarthim) δ (Botein) ε ζ η θ ι κ λ μ ν ξ ο π ρ¹ ρ² ρ³ σ τ¹ τ²
Flamsteed	1 4 7 10 11 14 15 16 19 20 21 23 26 27 29 30 31 33 35 36 38 39 (Lilii Borea) 40 41 (Bharani) 47 49 50 51 52 53 54 55 56 59 60 62 64 65 66 54 Cet 85 Cet
Variable	TZ UX VZ (16 Tri)
HR	577 728 803 952 999
HD	12661 20367
Other	BD+20°307 HIP 14810 HAT-P-25 Teegarden's Star WASP-11/HAT-P-10 WD 0145+234

Exoplanets	α Arietis b HD 12661 b c HIP 14810 b c d Teegarden's Star b c WASP-11b/HAT-P-10b

NGC	677 680 691 694 695 716 765 770 772 774 781 803 817 820 821 871 877 900 901 903 904 918 935 938 972 990 992 1024 1134 1156 1168
Other	1ES 0229+200 3C 79 4C +28.07 AO 0235+164 IC 167 IC 1801 PSO J0309+27 Segue 2 UGC 2140

Galaxy clusters	MS 0302+17

Astronomical events	GRB 060218

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