🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.6

Radius: 10.3

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.67 AU - 1.03 AU

Year: 551 Days

Day: 14.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 171.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 84,044,745 km

• M1: 135,386 km (0.077 R)
• M2: 219,460 km (0.104 R)
• M3: 289,621 km (0.114 R)
• M4: 365,168 km (0.099 R)
• M5: 445,802 km (0.026 R)
• M6: 538,253 km (0.104 R)
• M7: 629,209 km (0.092 R)
• M8: 711,936 km (0.036 R)
• M9: 1,076,357 km (0.086 R)
• M10: 1,305,989 km (0.104 R)
• M11: 1,680,433 km (0.063 R)
• M12: 1,752,838 km (0.101 R)
• M13: 1,839,605 km (0.073 R)
• M14: 1,948,512 km (0.088 R)
• M15: 2,052,632 km (0.043 R)
• M16: 2,180,239 km (0.086 R)
• M17: 2,245,015 km (0.043 R)
• M18: 2,325,050 km (0.089 R)
• M19: 2,548,400 km (0.111 R)
• M20: 2,670,322 km (0.119 R)
• M21: 2,786,560 km (0.06 R)
• M22: 2,872,878 km (0.028 R)
• M23: 2,952,015 km (0.072 R)
• M24: 3,153,523 km (0.071 R)
• M25: 3,276,493 km (0.119 R)
• M26: 3,359,370 km (0.078 R)
• M27: 3,655,274 km (0.116 R)
• M28: 3,741,293 km (0.065 R)
• M29: 3,959,556 km (0.103 R)
• M30: 4,030,316 km (0.116 R)
• M31: 4,199,960 km (0.103 R)
• M32: 4,281,192 km (0.05 R)
• M33: 4,353,896 km (0.084 R)
• M34: 4,482,102 km (0.061 R)
• M35: 4,583,679 km (0.095 R)
• M36: 4,845,625 km (0.077 R)
• M37: 4,978,617 km (0.105 R)
• M38: 5,131,955 km (0.092 R)
• M39: 5,453,291 km (0.117 R)
• M40: 5,591,520 km (0.118 R)
• M41: 5,831,325 km (0.063 R)
• M42: 6,105,239 km (0.028 R)
• M43: 6,249,002 km (0.08 R)
• M44: 6,497,933 km (0.108 R)
• M45: 6,686,875 km (0.049 R)
• M46: 6,877,463 km (0.094 R)
• M47: 6,994,897 km (0.119 R)
• M48: 7,069,995 km (0.085 R)
• M49: 7,145,393 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.5

Radius: 14.4

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.81 AU - 1.15 AU

Year: 682 Days

Day: 11.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 84,044,745 km

• M1: 181,911 km (0.049 R)
• M2: 275,709 km (0.045 R)
• M3: 367,712 km (0.058 R)
• M4: 507,586 km (0.115 R)
• M5: 614,249 km (0.073 R)
• M6: 748,289 km (0.072 R)
• M7: 855,401 km (0.081 R)
• M8: 1,012,927 km (0.084 R)
• M9: 1,108,371 km (0.054 R)
• M10: 1,220,419 km (0.098 R)
• M11: 1,368,521 km (0.107 R)
• M12: 1,546,992 km (0.087 R)
• M13: 1,668,914 km (0.101 R)
• M14: 1,922,781 km (0.112 R)
• M15: 2,075,970 km (0.109 R)
• M16: 2,233,496 km (0.07 R)
• M17: 2,338,963 km (0.065 R)
• M18: 2,584,004 km (0.066 R)
• M19: 2,706,824 km (0.094 R)
• M20: 3,124,352 km (0.054 R)
• M21: 3,236,849 km (0.114 R)
• M22: 3,446,436 km (0.115 R)
• M23: 3,575,838 km (0.114 R)
• M24: 3,686,989 km (0.105 R)
• M25: 3,926,346 km (0.105 R)
• M26: 4,061,732 km (0.053 R)
• M27: 4,164,206 km (0.05 R)
• M28: 4,406,854 km (0.105 R)
• M29: 4,519,202 km (0.106 R)
• M30: 4,819,146 km (0.074 R)
• M31: 5,066,880 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.4

Radius: 12.2

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.85 AU - 1.23 AU

Year: 746 Days

Day: 11.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 84,044,745 km

• M1: 153,787 km (0.092 R)
• M2: 247,136 km (0.117 R)
• M3: 328,367 km (0.107 R)
• M4: 460,911 km (0.075 R)
• M5: 559,646 km (0.111 R)
• M6: 655,089 km (0.088 R)
• M7: 803,939 km (0.115 R)
• M8: 896,540 km (0.095 R)
• M9: 974,331 km (0.092 R)
• M10: 1,054,815 km (0.06 R)
• M11: 1,212,790 km (0.055 R)
• M12: 1,300,155 km (0.108 R)
• M13: 1,405,771 km (0.067 R)
• M14: 1,519,914 km (0.116 R)
• M15: 1,781,411 km (0.06 R)
• M16: 1,863,989 km (0.053 R)
• M17: 2,002,517 km (0.048 R)
• M18: 2,082,402 km (0.094 R)
• M19: 2,163,335 km (0.104 R)
• M20: 2,290,194 km (0.108 R)
• M21: 2,399,849 km (0.085 R)
• M22: 2,511,449 km (0.112 R)
• M23: 2,753,648 km (0.086 R)
• M24: 2,982,383 km (0.115 R)
• M25: 3,195,859 km (0.09 R)
• M26: 3,333,789 km (0.098 R)
• M27: 3,421,902 km (0.103 R)
• M28: 3,570,452 km (0.106 R)
• M29: 3,744,136 km (0.115 R)
• M30: 3,820,580 km (0.053 R)
• M31: 3,905,103 km (0.116 R)
• M32: 3,998,153 km (0.108 R)
• M33: 4,147,152 km (0.047 R)
• M34: 4,242,147 km (0.114 R)
• M35: 4,386,060 km (0.112 R)
• M36: 4,490,928 km (0.101 R)
• M37: 4,670,446 km (0.089 R)
• M38: 4,860,734 km (0.113 R)
• M39: 4,944,359 km (0.079 R)
• M40: 5,078,997 km (0.114 R)
• M41: 5,586,284 km (0.033 R)
• M42: 5,673,798 km (0.095 R)
• M43: 5,815,019 km (0.089 R)
• M44: 5,948,311 km (0.103 R)
• M45: 6,064,847 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.4

Radius: 9.6

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.32 AU - 2.06 AU

Year: 1544 Days

Day: 5.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 84,044,745 km

• M1: 120,725 km (0.099 R)
• M2: 261,647 km (0.12 R)
• M3: 380,727 km (0.065 R)
• M4: 508,633 km (0.11 R)
• M5: 609,911 km (0.048 R)
• M6: 756,666 km (0.12 R)
• M7: 1,033,572 km (0.102 R)
• M8: 1,165,966 km (0.099 R)
• M9: 1,276,070 km (0.059 R)
• M10: 1,526,796 km (0.081 R)
• M11: 1,627,625 km (0.054 R)
• M12: 1,689,110 km (0.072 R)
• M13: 1,772,436 km (0.077 R)
• M14: 1,835,865 km (0.111 R)
• M15: 1,910,963 km (0.071 R)
• M16: 2,187,420 km (0.065 R)
• M17: 2,656,409 km (0.104 R)
• M18: 2,815,582 km (0.092 R)
• M19: 2,890,081 km (0.118 R)
• M20: 3,003,177 km (0.095 R)
• M21: 3,066,756 km (0.086 R)
• M22: 3,259,887 km (0.029 R)
• M23: 3,390,935 km (0.045 R)
• M24: 3,550,406 km (0.107 R)
• M25: 3,631,189 km (0.068 R)
• M26: 3,821,926 km (0.076 R)
• M27: 3,890,891 km (0.054 R)
• M28: 4,016,104 km (0.098 R)
• M29: 4,342,078 km (0.085 R)
• M30: 4,428,546 km (0.086 R)
• M31: 4,603,276 km (0.05 R)
• M32: 4,914,440 km (0.059 R)
• M33: 5,247,893 km (0.033 R)
• M34: 5,417,388 km (0.107 R)
• M35: 6,210,406 km (0.094 R)
• M36: 6,422,685 km (0.106 R)
• M37: 6,521,420 km (0.099 R)
• M38: 6,603,998 km (0.081 R)
• M39: 6,871,030 km (0.053 R)
• M40: 7,260,882 km (0.058 R)
• M41: 7,329,548 km (0.052 R)
• M42: 7,692,921 km (0.118 R)
• M43: 7,920,908 km (0.09 R)
• M44: 8,294,005 km (0.088 R)
• M45: 8,636,435 km (0.103 R)
• M46: 8,946,850 km (0.083 R)
• M47: 9,057,253 km (0.069 R)
• M48: 9,223,756 km (0.086 R)
• M49: 9,672,699 km (0.058 R)
• M50: 10,263,012 km (0.049 R)
• M51: 10,340,055 km (0.104 R)
• M52: 10,650,172 km (0.064 R)
• M53: 10,786,904 km (0.045 R)
• M54: 11,061,865 km (0.07 R)
• M55: 11,259,783 km (0.12 R)
• M56: 11,618,818 km (0.066 R)
• M57: 12,022,283 km (0.057 R)
• M58: 12,307,566 km (0.12 R)
• M59: 12,739,455 km (0.099 R)
• M60: 13,072,012 km (0.093 R)
• M61: 13,176,431 km (0.057 R)
• M62: 13,302,243 km (0.087 R)
• M63: 13,407,260 km (0.091 R)
• M64: 13,533,820 km (0.07 R)
• M65: 13,809,230 km (0.112 R)
• M66: 13,915,594 km (0.12 R)
• M67: 14,043,650 km (0.118 R)
• M68: 14,473,444 km (0.101 R)
• M69: 14,538,220 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.6

Radius: 13.8

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.39 AU - 2.31 AU

Year: 1769 Days

Day: 6 Hours

Environment

Temp: -199 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 84,044,745 km

• M1: 182,210 km (0.107 R)
• M2: 308,321 km (0.104 R)
• M3: 405,859 km (0.073 R)
• M4: 558,449 km (0.104 R)
• M5: 727,046 km (0.097 R)
• M6: 998,267 km (0.119 R)
• M7: 1,128,866 km (0.082 R)
• M8: 1,237,922 km (0.047 R)
• M9: 1,477,129 km (0.075 R)
• M10: 1,587,383 km (0.116 R)
• M11: 1,721,572 km (0.033 R)
• M12: 1,946,567 km (0.108 R)
• M13: 2,090,929 km (0.043 R)
• M14: 2,204,474 km (0.101 R)
• M15: 2,320,113 km (0.025 R)
• M16: 2,426,178 km (0.101 R)
• M17: 2,841,312 km (0.1 R)
• M18: 2,955,156 km (0.026 R)
• M19: 3,083,362 km (0.075 R)
• M20: 3,200,497 km (0.077 R)
• M21: 3,372,235 km (0.078 R)
• M22: 3,628,945 km (0.062 R)
• M23: 4,019,096 km (0.1 R)
• M24: 4,408,200 km (0.096 R)
• M25: 4,511,124 km (0.113 R)
• M26: 4,779,502 km (0.047 R)
• M27: 5,022,599 km (0.098 R)
• M28: 5,176,535 km (0.058 R)
• M29: 5,905,226 km (0.068 R)
• M30: 6,067,989 km (0.12 R)
• M31: 6,248,703 km (0.075 R)
• M32: 6,464,573 km (0.094 R)
• M33: 6,955,254 km (0.087 R)
• M34: 7,127,291 km (0.087 R)
• M35: 7,405,543 km (0.036 R)
• M36: 7,546,016 km (0.082 R)
• M37: 7,705,038 km (0.064 R)
• M38: 8,627,608 km (0.061 R)
• M39: 8,738,460 km (0.115 R)
• M40: 8,887,011 km (0.1 R)
• M41: 9,470,742 km (0.069 R)
• M42: 9,699,926 km (0.077 R)
• M43: 10,694,901 km (0.084 R)
• M44: 10,794,234 km (0.112 R)
• M45: 10,893,867 km (0.059 R)
• M46: 11,315,733 km (0.092 R)
• M47: 11,416,861 km (0.043 R)
• M48: 11,518,438 km (0.053 R)
• M49: 11,886,448 km (0.094 R)
• M50: 12,299,787 km (0.058 R)
• M51: 12,508,327 km (0.029 R)
• M52: 12,844,324 km (0.05 R)
• M53: 13,119,584 km (0.098 R)
• M54: 13,311,368 km (0.098 R)
• M55: 13,418,331 km (0.032 R)
• M56: 13,654,546 km (0.099 R)
• M57: 13,978,874 km (0.08 R)
• M58: 14,856,265 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.5

Radius: 8

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.01 AU - 5.29 AU

Year: 7048 Days

Day: 14.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 84,044,745 km

• M1: 139,575 km (0.086 R)
• M2: 307,573 km (0.108 R)
• M3: 377,286 km (0.112 R)
• M4: 487,689 km (0.105 R)
• M5: 688,150 km (0.115 R)
• M6: 826,977 km (0.078 R)
• M7: 944,711 km (0.072 R)
• M8: 1,197,381 km (0.072 R)
• M9: 1,453,493 km (0.029 R)
• M10: 1,579,006 km (0.065 R)
• M11: 1,708,108 km (0.089 R)
• M12: 1,802,505 km (0.047 R)
• M13: 2,056,223 km (0.088 R)
• M14: 2,706,824 km (0.114 R)
• M15: 2,952,164 km (0.104 R)
• M16: 3,633,433 km (0.092 R)
• M17: 3,854,389 km (0.085 R)
• M18: 3,904,205 km (0.095 R)
• M19: 4,130,696 km (0.081 R)
• M20: 4,284,034 km (0.09 R)
• M21: 4,387,406 km (0.033 R)
• M22: 4,439,317 km (0.102 R)
• M23: 4,570,215 km (0.07 R)
• M24: 4,862,529 km (0.119 R)
• M25: 4,943,462 km (0.106 R)
• M26: 5,718,977 km (0.112 R)
• M27: 5,832,971 km (0.078 R)
• M28: 5,947,563 km (0.115 R)
• M29: 6,354,918 km (0.117 R)
• M30: 6,711,110 km (0.069 R)
• M31: 7,381,159 km (0.103 R)
• M32: 7,505,325 km (0.067 R)
• M33: 7,598,824 km (0.097 R)
• M34: 7,818,583 km (0.116 R)
• M35: 7,976,858 km (0.107 R)
• M36: 8,425,651 km (0.032 R)
• M37: 8,490,577 km (0.118 R)
• M38: 8,816,999 km (0.102 R)
• M39: 9,314,412 km (0.065 R)
• M40: 10,232,644 km (0.081 R)
• M41: 10,371,172 km (0.1 R)
• M42: 10,440,735 km (0.068 R)
• M43: 10,510,298 km (0.086 R)
• M44: 10,650,022 km (0.067 R)
• M45: 11,143,994 km (0.076 R)
• M46: 11,322,165 km (0.104 R)
• M47: 12,044,573 km (0.117 R)
• M48: 12,117,577 km (0.112 R)
• M49: 12,411,387 km (0.047 R)
• M50: 12,596,141 km (0.084 R)
• M51: 12,930,941 km (0.061 R)
• M52: 13,382,128 km (0.11 R)
• M53: 14,454,595 km (0.077 R)
• M54: 14,571,132 km (0.102 R)
• M55: 14,805,252 km (0.063 R)
• M56: 16,154,775 km (0.059 R)
• M57: 16,966,942 km (0.093 R)
• M58: 17,917,337 km (0.101 R)
• M59: 18,673,105 km (0.113 R)
• M60: 19,782,972 km (0.116 R)
• M61: 20,346,058 km (0.09 R)
• M62: 20,914,231 km (0.112 R)
• M63: 21,002,195 km (0.033 R)
• M64: 21,487,789 km (0.112 R)
• M65: 21,709,643 km (0.067 R)
• M66: 22,605,136 km (0.095 R)
• M67: 23,148,027 km (0.104 R)
• M68: 23,375,565 km (0.115 R)
• M69: 23,466,820 km (0.068 R)
• M70: 23,649,628 km (0.075 R)
• M71: 25,082,327 km (0.091 R)
• M72: 26,068,626 km (0.048 R)
• M73: 28,176,310 km (0.077 R)
• M74: 28,565,265 km (0.048 R)
• M75: 28,760,490 km (0.114 R)
• M76: 29,594,947 km (0.05 R)
• M77: 29,891,450 km (0.112 R)
• M78: 30,089,667 km (0.078 R)
• M79: 30,836,609 km (0.112 R)
• M80: 31,640,249 km (0.111 R)
• M81: 32,552,497 km (0.076 R)
• M82: 33,730,580 km (0.059 R)
• M83: 34,040,247 km (0.101 R)
• M84: 34,092,008 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966

Radius: 5.7

Gravity: 29.73 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.99 AU - 10.37 AU

Year: 19551 Days

Day: 22.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 84,044,745 km

• M1: 120,127 km (0.106 R)
• M2: 167,699 km (0.056 R)
• M3: 225,145 km (0.088 R)
• M4: 926,460 km (0.052 R)
• M5: 1,095,505 km (0.079 R)
• M6: 2,452,507 km (0.103 R)
• M7: 2,647,134 km (0.049 R)
• M8: 2,846,698 km (0.095 R)
• M9: 3,176,412 km (0.102 R)
• M10: 3,871,443 km (0.09 R)
• M11: 4,755,567 km (0.092 R)
• M12: 5,750,393 km (0.114 R)
• M13: 7,301,872 km (0.026 R)
• M14: 7,751,414 km (0.116 R)
• M15: 8,267,826 km (0.096 R)
• M16: 8,736,067 km (0.092 R)
• M17: 9,033,168 km (0.101 R)
• M18: 9,637,244 km (0.111 R)
• M19: 9,820,951 km (0.071 R)
• M20: 10,630,724 km (0.116 R)
• M21: 10,947,722 km (0.083 R)
• M22: 11,721,442 km (0.106 R)
• M23: 11,786,667 km (0.077 R)
• M24: 12,379,523 km (0.055 R)
• M25: 14,635,010 km (0.045 R)
• M26: 14,846,242 km (0.097 R)
• M27: 15,058,522 km (0.108 R)
• M28: 15,414,565 km (0.066 R)
• M29: 15,917,513 km (0.119 R)
• M30: 16,062,323 km (0.089 R)
• M31: 16,792,361 km (0.068 R)
• M32: 17,235,619 km (0.112 R)
• M33: 17,309,970 km (0.067 R)
• M34: 18,664,578 km (0.062 R)
• M35: 19,819,324 km (0.075 R)
• M36: 19,897,115 km (0.105 R)
• M37: 21,955,283 km (0.061 R)
• M38: 22,602,144 km (0.108 R)
• M39: 23,501,676 km (0.069 R)
• M40: 24,496,203 km (0.082 R)
• M41: 24,998,702 km (0.107 R)
• M42: 27,388,079 km (0.04 R)
• M43: 29,227,385 km (0.088 R)
• M44: 29,315,947 km (0.086 R)
• M45: 29,493,370 km (0.075 R)
• M46: 31,377,705 km (0.068 R)
• M47: 31,923,138 km (0.085 R)
• M48: 32,471,863 km (0.104 R)
• M49: 33,208,184 km (0.11 R)
• M50: 36,684,839 km (0.085 R)
• M51: 37,933,382 km (0.1 R)
• M52: 38,223,602 km (0.089 R)
• M53: 38,514,421 km (0.062 R)
• M54: 38,903,375 km (0.044 R)
• M55: 39,098,451 km (0.067 R)
• M56: 39,587,337 km (0.106 R)
• M57: 39,685,323 km (0.063 R)
• M58: 39,881,596 km (0.11 R)
• M59: 39,979,881 km (0.119 R)
• M60: 40,867,745 km (0.085 R)
• M61: 41,264,478 km (0.086 R)
• M62: 43,469,252 km (0.084 R)
• M63: 43,671,508 km (0.119 R)
• M64: 44,382,098 km (0.067 R)
• M65: 45,403,851 km (0.056 R)
• M66: 47,158,634 km (0.108 R)
• M67: 48,620,206 km (0.071 R)
• M68: 49,040,576 km (0.082 R)
• M69: 49,567,609 km (0.082 R)
• M70: 50,308,866 km (0.107 R)
• M71: 51,160,228 km (0.091 R)
• M72: 51,373,854 km (0.086 R)
• M73: 53,093,481 km (0.055 R)
• M74: 53,526,268 km (0.094 R)
• M75: 56,478,432 km (0.084 R)
• M76: 60,948,117 km (0.1 R)
• M77: 61,401,249 km (0.084 R)
• M78: 63,339,738 km (0.092 R)
• M79: 64,143,677 km (0.039 R)
• M80: 68,331,670 km (0.084 R)
• M81: 68,802,454 km (0.084 R)
• M82: 71,649,601 km (0.094 R)
• M83: 73,087,536 km (0.078 R)
• M84: 74,534,895 km (0.1 R)
• M85: 75,748,283 km (0.097 R)
• M86: 80,170,396 km (0.071 R)
• M87: 80,542,596 km (0.091 R)
• M88: 82,662,996 km (0.101 R)
• M89: 82,788,359 km (0.084 R)
• M90: 82,913,722 km (0.102 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 15,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit