HD 181068

HD 181068 is a triple star system comprising a red giant: HD 181068A and two red dwarfs: HD 181068B and HD 181068C. The system is notable for the unique triply eclipsing variations that are observed as each star passes behind or in front of the others. The primary star HD 181068A is also unusual in that it does not exhibit internal seismic oscillations as have been detected in other red giants. HD 181068A is estimated to be 12.4 times larger than our Sun.^[1]^[2]

References

↑ Kepler discovery of a unique triply eclipsing triple star NASA Kepler News, April 7, 2011
↑ HD 181068: A Red Giant in a Triply Eclipsing Compact Hierarchical Triple System Report abstract, Science, April 8, 2011

Stars of Lyra

Bayer	α (Vega) β (Sheliak) γ (Sulafat) δ¹ δ² ε^{1, 2} (Double Double) ζ¹ ζ² η (Aladfar) θ ι κ λ μ (Alathfar) ν¹ ν²

Flamsteed	16 17 19

Variable	R (13) S T V W RR RV RZ TT TZ UZ XY AY CC CN CY DM EP EZ FL HK HP HR KX MV V344 V361 V404 V473 V477 V478 V533 V542 V543 V545 V550 V558

HR	6845 6847 6853 6901 6968 6984 6997 7016 7017 7019 7030 7033 7041 7043 7044 7064 7073 7081 7112 7115 7118 7132 7140 7146 7162 7181 7202 7204 7212 7237 7238 7244 7253 7272 7280 7284 7302 7338 7345 7346 7359 7376 7382

HD	177830 180314 181068

Gliese	Gliese 758 GJ 4063

Kepler	7 8 9 14 19 20 24 25 26 30 37 38 46 53 55 59 60 62 65 75 83 88 91 92 93 94 95 98 100 102 103 104 105 109 128 130 131 138 177 238 277 279 282 350 410 444

Other	GSC 02634-01087 GSC 02652-01324 2MASS 1835+3259 WASP-3 WASP-58 WISE 1828+2650

List

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