on GJ 667 C's bolometric luminosity, GJ 667 Cc would receive 90% of the light Earth does; however, much of that electromagnetic radiation would be in the invisible infrared light part of the spectrum. Based on black body temperature calculation, GJ 667 Cc should absorb more overall electromagnetic radiation, making it warmer (277.4 K) and placing it slightly closer to the "hot" edge of the habitable zone than Earth (254.3 K). From the surface of Gliese 667 Cc, the second-confirmed planet out that orbits along the middle of the habitable zone, Gliese 667 C would have an angular diameter of 1.24 degrees—2.3 times larger than our Sun appears from the surface of the Earth, covering 5.4 times more area—but would still only occupy 0.003% of Gliese 667 Cc's sky sphere or 0.006% of the visible sky when directly overhead. At one point, five additional planets were thought to exist in the system, with three of them thought to be relatively certain to exist. However, subsequent studies showed that the other planets in the system could possibly be artifacts of noise and stellar activity, cutting the minimum number of planets down to two. The analysis did find some evidence for the third planet, Gliese 667 Cd, but was unable to confirm it. A later study also detected the third planet, but the study in question has not been published yet or peer-reviewed. References Notes External links exoplanet art sites: K-type main-sequence stars M-type main-sequence stars Scorpius (constellation) Planetary systems with two confirmed planets 156384 3 Triple star systems Scorpii, 142 084709 0667 J17185698-3459236 TIC objects