🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.74 AU - 1.04 AU

Year: 301 Days

Day: 22.4 Hours

Environment

Temp: 169 °C

Axial Tilt: 32.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.13 AU - 1.75 AU

Year: 619 Days

Day: 13.9 Hours

Environment

Temp: -4 °C

Axial Tilt: 37.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.87 AU - 1.91 AU

Year: 931 Days

Day: 19.6 Hours

Environment

Temp: -62 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,969,531 km

• M1: 553,662 km (0.039 R)
• M2: 1,132,905 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.4

Radius: 11.8

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.67 AU - 6.97 AU

Year: 5029 Days

Day: 6.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 52,969,531 km

• M1: 226,790 km (0.102 R)
• M2: 325,525 km (0.11 R)
• M3: 439,668 km (0.108 R)
• M4: 545,434 km (0.085 R)
• M5: 661,522 km (0.09 R)
• M6: 767,138 km (0.09 R)
• M7: 997,219 km (0.093 R)
• M8: 1,132,605 km (0.096 R)
• M9: 1,372,411 km (0.096 R)
• M10: 1,511,537 km (0.094 R)
• M11: 1,602,642 km (0.098 R)
• M12: 1,722,619 km (0.106 R)
• M13: 2,174,106 km (0.085 R)
• M14: 2,383,244 km (0.097 R)
• M15: 2,521,173 km (0.078 R)
• M16: 2,805,259 km (0.106 R)
• M17: 2,886,042 km (0.099 R)
• M18: 3,033,546 km (0.099 R)
• M19: 3,200,497 km (0.116 R)
• M20: 3,613,387 km (0.075 R)
• M21: 3,719,302 km (0.115 R)
• M22: 4,190,386 km (0.071 R)
• M23: 4,358,085 km (0.067 R)
• M24: 4,489,881 km (0.086 R)
• M25: 4,623,173 km (0.108 R)
• M26: 4,757,661 km (0.079 R)
• M27: 4,952,288 km (0.119 R)
• M28: 5,149,458 km (0.062 R)
• M29: 5,269,136 km (0.071 R)
• M30: 5,470,495 km (0.066 R)
• M31: 5,797,965 km (0.119 R)
• M32: 6,047,943 km (0.111 R)
• M33: 6,709,913 km (0.099 R)
• M34: 7,082,861 km (0.113 R)
• M35: 7,666,292 km (0.09 R)
• M36: 8,593,949 km (0.101 R)
• M37: 9,264,447 km (0.112 R)
• M38: 9,386,070 km (0.081 R)
• M39: 9,729,098 km (0.11 R)
• M40: 9,976,682 km (0.058 R)
• M41: 10,151,263 km (0.101 R)
• M42: 10,452,852 km (0.112 R)
• M43: 10,579,412 km (0.082 R)
• M44: 10,681,138 km (0.033 R)
• M45: 10,783,015 km (0.079 R)
• M46: 10,885,339 km (0.067 R)
• M47: 10,962,233 km (0.081 R)
• M48: 11,168,229 km (0.058 R)
• M49: 11,297,631 km (0.12 R)
• M50: 11,610,291 km (0.118 R)
• M51: 11,820,326 km (0.088 R)
• M52: 11,952,122 km (0.069 R)
• M53: 12,084,516 km (0.11 R)
• M54: 12,538,396 km (0.069 R)
• M55: 12,807,971 km (0.105 R)
• M56: 12,943,507 km (0.115 R)
• M57: 13,298,054 km (0.108 R)
• M58: 13,683,418 km (0.105 R)
• M59: 13,766,594 km (0.097 R)
• M60: 13,849,771 km (0.061 R)
• M61: 15,233,102 km (0.12 R)
• M62: 15,955,810 km (0.11 R)
• M63: 16,277,296 km (0.067 R)
• M64: 16,926,849 km (0.07 R)
• M65: 17,584,781 km (0.099 R)
• M66: 17,886,669 km (0.115 R)
• M67: 18,038,362 km (0.1 R)
• M68: 18,618,203 km (0.076 R)
• M69: 18,710,355 km (0.118 R)
• M70: 18,895,109 km (0.083 R)
• M71: 19,111,278 km (0.11 R)
• M72: 19,204,178 km (0.038 R)
• M73: 20,711,676 km (0.053 R)
• M74: 20,966,590 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.6

Radius: 8.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.64 AU - 7.36 AU

Year: 5264 Days

Day: 8.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 108.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 52,969,531 km

• M1: 128,056 km (0.106 R)
• M2: 186,848 km (0.045 R)
• M3: 265,237 km (0.07 R)
• M4: 679,922 km (0.089 R)
• M5: 769,980 km (0.063 R)
• M6: 912,846 km (0.111 R)
• M7: 1,090,718 km (0.058 R)
• M8: 1,238,521 km (0.068 R)
• M9: 1,393,055 km (0.115 R)
• M10: 1,450,950 km (0.068 R)
• M11: 1,524,402 km (0.069 R)
• M12: 1,705,865 km (0.087 R)
• M13: 2,089,882 km (0.071 R)
• M14: 2,156,453 km (0.083 R)
• M15: 2,274,785 km (0.087 R)
• M16: 2,326,247 km (0.111 R)
• M17: 2,430,217 km (0.076 R)
• M18: 2,571,288 km (0.117 R)
• M19: 2,715,052 km (0.046 R)
• M20: 2,788,056 km (0.064 R)
• M21: 2,843,108 km (0.064 R)
• M22: 2,954,558 km (0.096 R)
• M23: 3,652,881 km (0.057 R)
• M24: 3,876,230 km (0.106 R)
• M25: 4,209,235 km (0.097 R)
• M26: 4,336,393 km (0.071 R)
• M27: 4,660,123 km (0.084 R)
• M28: 4,924,762 km (0.096 R)
• M29: 5,149,159 km (0.119 R)
• M30: 5,376,697 km (0.111 R)
• M31: 5,561,301 km (0.12 R)
• M32: 5,747,849 km (0.085 R)
• M33: 5,936,642 km (0.098 R)
• M34: 6,564,055 km (0.098 R)
• M35: 6,637,807 km (0.105 R)
• M36: 6,910,674 km (0.096 R)
• M37: 6,985,622 km (0.079 R)
• M38: 7,339,571 km (0.111 R)
• M39: 7,518,639 km (0.106 R)
• M40: 8,196,617 km (0.086 R)
• M41: 8,677,424 km (0.117 R)
• M42: 9,085,079 km (0.118 R)
• M43: 9,415,690 km (0.085 R)
• M44: 9,694,241 km (0.107 R)
• M45: 9,750,340 km (0.033 R)
• M46: 10,032,033 km (0.113 R)
• M47: 10,117,154 km (0.098 R)
• M48: 10,431,160 km (0.034 R)
• M49: 10,690,413 km (0.111 R)
• M50: 10,951,911 km (0.11 R)
• M51: 11,510,808 km (0.089 R)
• M52: 11,570,199 km (0.098 R)
• M53: 11,719,048 km (0.12 R)
• M54: 13,585,880 km (0.106 R)
• M55: 14,217,931 km (0.118 R)
• M56: 14,377,403 km (0.107 R)
• M57: 14,665,977 km (0.1 R)
• M58: 14,924,183 km (0.054 R)
• M59: 15,021,272 km (0.056 R)
• M60: 15,543,219 km (0.096 R)
• M61: 15,905,545 km (0.045 R)
• M62: 16,037,939 km (0.072 R)
• M63: 16,337,284 km (0.048 R)
• M64: 16,638,425 km (0.07 R)
• M65: 17,314,308 km (0.105 R)
• M66: 17,587,174 km (0.1 R)
• M67: 17,724,057 km (0.028 R)
• M68: 18,240,768 km (0.095 R)
• M69: 19,042,762 km (0.109 R)
• M70: 19,430,370 km (0.075 R)
• M71: 19,536,584 km (0.087 R)
• M72: 20,681,008 km (0.066 R)
• M73: 20,753,264 km (0.099 R)
• M74: 21,516,961 km (0.095 R)
• M75: 21,773,521 km (0.077 R)
• M76: 22,698,335 km (0.109 R)
• M77: 23,372,124 km (0.094 R)
• M78: 23,560,318 km (0.112 R)
• M79: 24,356,777 km (0.045 R)
• M80: 24,509,517 km (0.11 R)
• M81: 25,007,977 km (0.119 R)
• M82: 25,626,115 km (0.115 R)
• M83: 26,093,010 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.7

Radius: 11.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.99 AU - 6.75 AU

Year: 5758 Days

Day: 13.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 52,969,531 km

• M1: 154,684 km (0.1 R)
• M2: 301,889 km (0.119 R)
• M3: 456,722 km (0.086 R)
• M4: 655,388 km (0.116 R)
• M5: 741,108 km (0.116 R)
• M6: 1,261,708 km (0.118 R)
• M7: 1,387,819 km (0.093 R)
• M8: 1,670,410 km (0.096 R)
• M9: 1,845,439 km (0.106 R)
• M10: 1,971,700 km (0.119 R)
• M11: 2,605,845 km (0.1 R)
• M12: 3,148,138 km (0.106 R)
• M13: 3,344,111 km (0.066 R)
• M14: 3,886,403 km (0.117 R)
• M15: 4,049,914 km (0.059 R)
• M16: 4,287,325 km (0.09 R)
• M17: 5,077,950 km (0.062 R)
• M18: 5,360,092 km (0.087 R)
• M19: 5,464,062 km (0.109 R)
• M20: 5,859,749 km (0.098 R)
• M21: 6,484,768 km (0.119 R)
• M22: 6,763,021 km (0.101 R)
• M23: 7,331,642 km (0.061 R)
• M24: 7,974,763 km (0.075 R)
• M25: 8,243,142 km (0.065 R)
• M26: 8,333,349 km (0.073 R)
• M27: 8,727,689 km (0.08 R)
• M28: 8,850,210 km (0.105 R)
• M29: 8,973,479 km (0.088 R)
• M30: 9,283,894 km (0.038 R)
• M31: 9,440,374 km (0.076 R)
• M32: 9,756,175 km (0.094 R)
• M33: 10,139,594 km (0.08 R)
• M34: 10,593,324 km (0.054 R)
• M35: 10,855,569 km (0.108 R)
• M36: 11,153,120 km (0.077 R)
• M37: 11,252,901 km (0.097 R)
• M38: 11,453,512 km (0.037 R)
• M39: 11,587,851 km (0.108 R)
• M40: 11,824,216 km (0.072 R)
• M41: 11,959,901 km (0.087 R)
• M42: 12,301,732 km (0.115 R)
• M43: 12,646,705 km (0.092 R)
• M44: 12,959,813 km (0.065 R)
• M45: 13,064,831 km (0.053 R)
• M46: 13,381,530 km (0.097 R)
• M47: 13,523,049 km (0.074 R)
• M48: 13,700,622 km (0.113 R)
• M49: 14,022,407 km (0.115 R)
• M50: 15,408,132 km (0.085 R)
• M51: 15,482,332 km (0.099 R)
• M52: 16,494,811 km (0.083 R)
• M53: 16,608,655 km (0.118 R)
• M54: 16,684,800 km (0.098 R)
• M55: 19,178,597 km (0.103 R)
• M56: 19,618,863 km (0.081 R)
• M57: 20,022,029 km (0.072 R)
• M58: 20,305,817 km (0.03 R)
• M59: 20,959,559 km (0.119 R)
• M60: 21,206,545 km (0.035 R)
• M61: 22,666,321 km (0.075 R)
• M62: 22,877,554 km (0.105 R)
• M63: 23,046,898 km (0.053 R)
• M64: 23,216,842 km (0.11 R)
• M65: 23,301,813 km (0.115 R)
• M66: 23,472,355 km (0.078 R)
• M67: 23,728,765 km (0.087 R)
• M68: 24,981,498 km (0.059 R)
• M69: 25,068,714 km (0.093 R)
• M70: 25,637,933 km (0.048 R)
• M71: 26,034,517 km (0.055 R)
• M72: 26,833,819 km (0.058 R)
• M73: 27,146,778 km (0.059 R)
• M74: 27,371,025 km (0.115 R)
• M75: 27,460,933 km (0.098 R)
• M76: 27,686,228 km (0.086 R)
• M77: 28,410,880 km (0.069 R)
• M78: 30,110,611 km (0.11 R)
• M79: 30,762,259 km (0.088 R)
• M80: 30,855,758 km (0.106 R)
• M81: 31,043,054 km (0.113 R)
• M82: 31,324,597 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.7

Radius: 8.6

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.14 AU - 8.52 AU

Year: 7108 Days

Day: 13.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 52,969,531 km

• M1: 182,958 km (0.1 R)
• M2: 273,465 km (0.084 R)
• M3: 385,065 km (0.115 R)
• M4: 591,061 km (0.076 R)
• M5: 658,679 km (0.089 R)
• M6: 832,063 km (0.107 R)
• M7: 1,004,550 km (0.108 R)
• M8: 1,420,731 km (0.104 R)
• M9: 1,495,081 km (0.12 R)
• M10: 1,628,373 km (0.056 R)
• M11: 1,785,750 km (0.086 R)
• M12: 1,886,728 km (0.099 R)
• M13: 2,577,123 km (0.119 R)
• M14: 2,737,940 km (0.075 R)
• M15: 3,093,684 km (0.109 R)
• M16: 3,166,688 km (0.088 R)
• M17: 3,264,824 km (0.062 R)
• M18: 3,590,947 km (0.107 R)
• M19: 4,274,310 km (0.084 R)
• M20: 4,547,775 km (0.057 R)
• M21: 7,845,810 km (0.083 R)
• M22: 8,147,100 km (0.119 R)
• M23: 8,350,104 km (0.109 R)
• M24: 9,108,566 km (0.091 R)
• M25: 9,354,654 km (0.099 R)
• M26: 9,496,174 km (0.092 R)
• M27: 9,709,799 km (0.041 R)
• M28: 9,961,124 km (0.118 R)
• M29: 10,433,404 km (0.078 R)
• M30: 10,580,309 km (0.043 R)
• M31: 11,665,193 km (0.113 R)
• M32: 11,894,078 km (0.099 R)
• M33: 12,162,905 km (0.025 R)
• M34: 12,589,558 km (0.115 R)
• M35: 14,754,090 km (0.096 R)
• M36: 15,250,605 km (0.072 R)
• M37: 15,500,883 km (0.101 R)
• M38: 16,175,120 km (0.108 R)
• M39: 16,944,951 km (0.083 R)
• M40: 17,031,119 km (0.073 R)
• M41: 17,334,354 km (0.084 R)
• M42: 18,431,355 km (0.052 R)
• M43: 19,235,145 km (0.043 R)
• M44: 20,187,335 km (0.097 R)
• M45: 20,923,057 km (0.097 R)
• M46: 21,061,884 km (0.047 R)
• M47: 21,433,934 km (0.079 R)
• M48: 21,573,958 km (0.042 R)
• M49: 21,667,456 km (0.115 R)
• M50: 21,855,052 km (0.112 R)
• M51: 22,137,194 km (0.066 R)
• M52: 22,468,104 km (0.091 R)
• M53: 22,800,511 km (0.05 R)
• M54: 24,340,920 km (0.113 R)
• M55: 25,271,269 km (0.095 R)
• M56: 25,370,004 km (0.103 R)
• M57: 26,313,218 km (0.034 R)
• M58: 26,413,150 km (0.103 R)
• M59: 26,814,222 km (0.118 R)
• M60: 27,015,580 km (0.044 R)
• M61: 27,116,409 km (0.085 R)
• M62: 27,419,794 km (0.093 R)
• M63: 27,622,499 km (0.104 R)
• M64: 29,314,750 km (0.12 R)
• M65: 29,418,421 km (0.091 R)
• M66: 30,304,190 km (0.101 R)
• M67: 30,934,745 km (0.075 R)
• M68: 31,304,551 km (0.11 R)
• M69: 32,637,319 km (0.055 R)
• M70: 32,852,291 km (0.052 R)
• M71: 33,229,577 km (0.06 R)
• M72: 33,445,895 km (0.057 R)
• M73: 33,608,358 km (0.069 R)
• M74: 34,260,904 km (0.075 R)
• M75: 34,698,329 km (0.09 R)
• M76: 34,972,691 km (0.1 R)
• M77: 35,192,600 km (0.089 R)
• M78: 36,132,673 km (0.106 R)
• M79: 36,299,325 km (0.083 R)
• M80: 36,354,975 km (0.115 R)
• M81: 36,522,076 km (0.053 R)
• M82: 37,586,166 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202

Radius: 7.9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 13.34 AU - 17.22 AU

Year: 21392 Days

Day: 20.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 52,969,531 km

• M1: 143,315 km (0.086 R)
• M2: 505,491 km (0.095 R)
• M3: 725,250 km (0.03 R)
• M4: 994,676 km (0.091 R)
• M5: 1,098,497 km (0.12 R)
• M6: 1,184,217 km (0.114 R)
• M7: 1,385,426 km (0.074 R)
• M8: 1,646,325 km (0.058 R)
• M9: 1,897,200 km (0.092 R)
• M10: 2,576,375 km (0.105 R)
• M11: 2,838,171 km (0.112 R)
• M12: 2,927,331 km (0.057 R)
• M13: 2,987,320 km (0.102 R)
• M14: 3,324,663 km (0.114 R)
• M15: 3,482,040 km (0.111 R)
• M16: 3,968,832 km (0.089 R)
• M17: 4,203,401 km (0.067 R)
• M18: 4,511,573 km (0.057 R)
• M19: 4,791,769 km (0.082 R)
• M20: 5,222,611 km (0.119 R)
• M21: 5,405,869 km (0.041 R)
• M22: 5,703,419 km (0.09 R)
• M23: 5,854,213 km (0.12 R)
• M24: 7,310,848 km (0.084 R)
• M25: 7,474,658 km (0.114 R)
• M26: 7,722,840 km (0.06 R)
• M27: 8,785,883 km (0.077 R)
• M28: 8,872,949 km (0.103 R)
• M29: 9,135,643 km (0.11 R)
• M30: 10,030,088 km (0.101 R)
• M31: 10,349,779 km (0.113 R)
• M32: 10,626,386 km (0.113 R)
• M33: 10,905,535 km (0.094 R)
• M34: 11,949,429 km (0.12 R)
• M35: 12,142,560 km (0.088 R)
• M36: 12,288,119 km (0.084 R)
• M37: 12,925,854 km (0.113 R)
• M38: 13,775,870 km (0.094 R)
• M39: 14,437,990 km (0.105 R)
• M40: 14,798,820 km (0.085 R)
• M41: 15,162,642 km (0.111 R)
• M42: 15,424,288 km (0.117 R)
• M43: 16,432,279 km (0.117 R)
• M44: 16,808,966 km (0.066 R)
• M45: 17,134,192 km (0.043 R)
• M46: 18,177,637 km (0.054 R)
• M47: 18,455,590 km (0.066 R)
• M48: 19,981,040 km (0.114 R)
• M49: 20,325,414 km (0.078 R)
• M50: 20,787,821 km (0.079 R)
• M51: 21,487,789 km (0.108 R)
• M52: 22,552,178 km (0.111 R)
• M53: 23,150,869 km (0.104 R)
• M54: 24,425,293 km (0.098 R)
• M55: 24,732,118 km (0.039 R)
• M56: 24,855,088 km (0.119 R)
• M57: 25,411,442 km (0.105 R)
• M58: 25,971,836 km (0.063 R)
• M59: 26,725,510 km (0.107 R)
• M60: 26,851,771 km (0.12 R)
• M61: 30,335,905 km (0.106 R)
• M62: 30,533,673 km (0.082 R)
• M63: 31,929,571 km (0.109 R)
• M64: 32,264,970 km (0.112 R)
• M65: 32,871,589 km (0.104 R)
• M66: 32,939,357 km (0.071 R)
• M67: 34,576,556 km (0.064 R)
• M68: 34,645,371 km (0.11 R)
• M69: 35,821,958 km (0.053 R)
• M70: 35,961,234 km (0.103 R)
• M71: 36,590,143 km (0.07 R)
• M72: 38,427,504 km (0.048 R)
• M73: 39,357,405 km (0.109 R)
• M74: 40,077,718 km (0.093 R)
• M75: 40,947,929 km (0.074 R)
• M76: 43,669,862 km (0.102 R)
• M77: 43,744,213 km (0.029 R)
• M78: 44,191,361 km (0.056 R)
• M79: 44,266,010 km (0.113 R)
• M80: 45,165,392 km (0.072 R)
• M81: 45,995,062 km (0.109 R)
• M82: 46,449,690 km (0.086 R)
• M83: 48,822,462 km (0.041 R)
• M84: 49,054,189 km (0.114 R)
• M85: 49,906,897 km (0.116 R)
• M86: 50,374,091 km (0.084 R)
• M87: 51,156,039 km (0.116 R)
• M88: 51,234,428 km (0.085 R)
• M89: 51,391,357 km (0.112 R)
• M90: 51,863,188 km (0.11 R)

Kuiper Belt

Range: 30.6 - 51.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 10,831 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit