Sagittarius Window Eclipsing Extrasolar Planet Search - Planets Discovered

Planets Discovered

Sixteen candidate planets were discovered with orbital periods ranging from 0.6 to 4.2 days. Planets with orbital periods less than 1.2 days have not previously been detected, and have been dubbed "ultra-short period planets" (USPPs) by the search team. USPPs were discovered only around low-mass stars, suggesting that larger stars destroyed any planets orbiting so closely or that planets were unable to migrate as far inward around larger stars.

Planets were found with roughly the same frequency of occurrence as in the local neighborhood of Earth.

SWEEPS-4 and SWEEPS-11 orbited stars that were sufficiently visually distinct from their neighbors that follow-up observations using the radial velocity method were possible, allowing their masses to be determined.

This table is constructed from information obtained from the Extrasolar Planets Encyclopedia and SIMBAD databases that reference the Nature article as their source.

Star Constellation Right
ascension		 Declination App.
mag.		 Distance Spectral
type		 Planet Mass
 Radius
 Orbital
period
 Semimajor
axis
 Orbital
eccentricity		 Inclination
 Discovery
year
SWEEPS J175853.29-291233.5 Sagittarius 17h 58m 53s −29° 12′ 33″ 22.2 ~22000 SWEEPS-01 ? 1.01 1.56 0.025 ? 86+ 2006
SWEEPS J175853.38-291217.8 Sagittarius 17h 58m 53s −29° 12′ 18″ 25.1 ~22000 SWEEPS-02 ? 1.37 0.912 0.015 ? 86+ 2006
SWEEPS J175853.57-291144.1 Sagittarius 17h 58m 53s −29° 11′ 44″ 22.5 ~22000 SWEEPS-03 ? 0.87 1.27 0.021 ? 86+ 2006
SWEEPS J175853.92−291120.6 Sagittarius 17h 58m 54s −29° 11′ 21″ 18.8 ~22000 SWEEPS-04 <3.8 0.81 4.2 0.055 ? 87+ 2006
SWEEPS J175854.60-291128.2 Sagittarius 17h 58m 55s −29° 11′ 28″ 23.9 ~22000 SWEEPS-05 ? 1.09 2.313 0.030 ? 87+ 2006
SWEEPS J175857.29-291253.4 Sagittarius 17h 58m 57s −29° 12′ 53″ 19.5 ~22000 SWEEPS-06 ? 0.82 3.039 0.042 ? 86+ 2006
SWEEPS J175857.69-291114.5 Sagittarius 17h 58m 58s −29° 11′ 15″ 21.5 ~22000 SWEEPS-07 ? 0.9 1.747 0.027 ? 86+ 2006
SWEEPS J175859.24-291328.7 Sagittarius 17h 58m 59s −29° 13′ 29″ 21.7 ~22000 SWEEPS-08 ? 0.98 0.868 0.017 ? 84+ 2006
SWEEPS J175859.60-291211.8 Sagittarius 17h 59m 00s −29° 12′ 12″ 22.5 ~22000 SWEEPS-09 ? 1.01 1.617 0.025 ? 86+ 2006
SWEEPS J175902.00-291323.7 Sagittarius 17h 59m 02s −29° 13′ 24″ 26.2 ~22000 SWEEPS-10 ? 1.24 0.424 0.008 ? 84+ 2006
SWEEPS J175902.67−291153.5 Sagittarius 17h 59m 03s −29° 11′ 54″ 19.83 ~22000 SWEEPS-11 9.7 1.13 1.796 0.03 ? 84+ 2006
SWEEPS J175904.44-291317.1 Sagittarius 17h 59m 04s −29° 13′ 17″ 21.8 ~22000 SWEEPS-12 ? 0.91 2.952 0.038 ? 87+ 2006
SWEEPS J175905.95-291305.6 Sagittarius 17h 59m 04s −29° 13′ 17″ 21.38 ~22000 SWEEPS-13 ? 0.78 1.684 0.027 ? 86+ 2006
SWEEPS J175907.56-291039.8 Sagittarius 17h 59m 04s −29° 13′ 17″ 22.38 ~22000 SWEEPS-14 ? 0.93 2.965 0.037 ? 87+ 2006
SWEEPS J175907.64-291023.7 Sagittarius 17h 59m 04s −29° 13′ 17″ 25.66 ~22000 SWEEPS-15 ? 1.37 0.541 0.010 ? 84+ 2006
SWEEPS J175908.44-291140.6 Sagittarius 17h 59m 08s −29° 11′ 41″ 23.78 ~22000 SWEEPS-16 ? 1.4 0.969 0.017 ? 85+ 2006

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