🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.51 AU - 0.53 AU

Year: 242 Days

Day: 21.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,836,844 km

• M1: 176,675 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.48 AU - 0.58 AU

Year: 249 Days

Day: 44.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.8

Radius: 14.4

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.7 AU - 0.74 AU

Year: 394 Days

Day: 9.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 27,836,844 km

• M1: 182,809 km (0.083 R)
• M2: 276,756 km (0.096 R)
• M3: 426,204 km (0.098 R)
• M4: 529,277 km (0.097 R)
• M5: 668,553 km (0.06 R)
• M6: 826,379 km (0.118 R)
• M7: 927,058 km (0.083 R)
• M8: 1,093,560 km (0.091 R)
• M9: 1,215,184 km (0.06 R)
• M10: 1,332,319 km (0.069 R)
• M11: 1,443,619 km (0.112 R)
• M12: 1,558,361 km (0.069 R)
• M13: 1,671,158 km (0.083 R)
• M14: 1,802,804 km (0.081 R)
• M15: 2,015,532 km (0.05 R)
• M16: 2,196,396 km (0.117 R)
• M17: 2,288,997 km (0.097 R)
• M18: 2,454,153 km (0.086 R)
• M19: 2,586,996 km (0.12 R)
• M20: 2,697,399 km (0.076 R)
• M21: 2,847,296 km (0.098 R)
• M22: 2,948,724 km (0.049 R)
• M23: 3,057,930 km (0.1 R)
• M24: 3,148,886 km (0.084 R)
• M25: 3,494,905 km (0.065 R)
• M26: 3,651,983 km (0.096 R)
• M27: 3,888,647 km (0.093 R)
• M28: 4,001,743 km (0.114 R)
• M29: 4,187,992 km (0.072 R)
• M30: 4,289,420 km (0.059 R)
• M31: 4,458,017 km (0.064 R)
• M32: 4,688,696 km (0.048 R)
• M33: 4,779,054 km (0.07 R)
• M34: 4,892,898 km (0.108 R)
• M35: 5,077,053 km (0.066 R)
• M36: 5,232,186 km (0.099 R)
• M37: 5,373,107 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 13.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.69 AU - 2.43 AU

Year: 1909 Days

Day: 11.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 27,836,844 km

• M1: 173,683 km (0.115 R)
• M2: 458,667 km (0.117 R)
• M3: 566,976 km (0.105 R)
• M4: 733,778 km (0.082 R)
• M5: 892,501 km (0.099 R)
• M6: 1,149,061 km (0.097 R)
• M7: 1,388,717 km (0.111 R)
• M8: 1,483,113 km (0.113 R)
• M9: 1,756,877 km (0.067 R)
• M10: 1,882,839 km (0.099 R)
• M11: 2,011,792 km (0.06 R)
• M12: 2,119,652 km (0.076 R)
• M13: 2,649,229 km (0.118 R)
• M14: 2,943,189 km (0.111 R)
• M15: 3,052,694 km (0.108 R)
• M16: 3,163,546 km (0.084 R)
• M17: 3,533,651 km (0.119 R)
• M18: 3,753,560 km (0.119 R)
• M19: 3,978,107 km (0.097 R)
• M20: 4,176,324 km (0.084 R)
• M21: 4,646,510 km (0.116 R)
• M22: 4,823,185 km (0.08 R)
• M23: 5,018,410 km (0.102 R)
• M24: 5,383,429 km (0.118 R)
• M25: 5,518,217 km (0.102 R)
• M26: 5,791,382 km (0.062 R)
• M27: 6,422,386 km (0.113 R)
• M28: 6,565,701 km (0.036 R)
• M29: 6,891,824 km (0.115 R)
• M30: 7,001,779 km (0.101 R)
• M31: 7,316,383 km (0.112 R)
• M32: 7,428,581 km (0.094 R)
• M33: 7,522,529 km (0.098 R)
• M34: 7,616,925 km (0.112 R)
• M35: 8,152,486 km (0.099 R)
• M36: 8,346,813 km (0.097 R)
• M37: 8,660,819 km (0.062 R)
• M38: 8,938,772 km (0.083 R)
• M39: 9,038,853 km (0.081 R)
• M40: 9,179,475 km (0.098 R)
• M41: 9,401,927 km (0.114 R)
• M42: 9,544,494 km (0.112 R)
• M43: 9,667,164 km (0.083 R)
• M44: 9,934,944 km (0.077 R)
• M45: 10,163,530 km (0.062 R)
• M46: 10,625,787 km (0.047 R)
• M47: 10,795,581 km (0.077 R)
• M48: 10,966,272 km (0.063 R)
• M49: 11,527,414 km (0.113 R)
• M50: 11,723,836 km (0.088 R)
• M51: 12,297,543 km (0.095 R)
• M52: 12,970,883 km (0.04 R)
• M53: 13,084,279 km (0.117 R)
• M54: 13,197,973 km (0.095 R)
• M55: 13,312,116 km (0.106 R)
• M56: 13,587,227 km (0.063 R)
• M57: 14,026,596 km (0.094 R)
• M58: 14,517,725 km (0.115 R)
• M59: 15,229,213 km (0.101 R)
• M60: 15,348,891 km (0.087 R)
• M61: 15,855,130 km (0.056 R)
• M62: 16,073,693 km (0.074 R)
• M63: 16,293,302 km (0.104 R)
• M64: 16,563,027 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934

Radius: 11.9

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.84 AU - 5.42 AU

Year: 6433 Days

Day: 13.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 27,836,844 km

• M1: 171,140 km (0.12 R)
• M2: 251,324 km (0.055 R)
• M3: 475,572 km (0.095 R)
• M4: 801,845 km (0.11 R)
• M5: 974,780 km (0.066 R)
• M6: 1,178,083 km (0.051 R)
• M7: 1,303,446 km (0.084 R)
• M8: 1,395,748 km (0.06 R)
• M9: 1,871,021 km (0.034 R)
• M10: 2,105,291 km (0.09 R)
• M11: 2,214,946 km (0.068 R)
• M12: 2,326,696 km (0.082 R)
• M13: 2,768,757 km (0.072 R)
• M14: 2,889,483 km (0.113 R)
• M15: 3,036,687 km (0.057 R)
• M16: 3,972,422 km (0.108 R)
• M17: 4,192,032 km (0.062 R)
• M18: 5,229,194 km (0.045 R)
• M19: 5,379,240 km (0.118 R)
• M20: 5,683,971 km (0.108 R)
• M21: 6,215,044 km (0.106 R)
• M22: 6,470,407 km (0.101 R)
• M23: 6,631,823 km (0.099 R)
• M24: 6,958,695 km (0.07 R)
• M25: 7,190,721 km (0.076 R)
• M26: 7,324,461 km (0.084 R)
• M27: 7,902,059 km (0.106 R)
• M28: 8,005,431 km (0.094 R)
• M29: 8,109,401 km (0.075 R)
• M30: 8,564,927 km (0.071 R)
• M31: 8,956,873 km (0.094 R)
• M32: 9,064,883 km (0.116 R)
• M33: 9,282,099 km (0.117 R)
• M34: 9,427,807 km (0.118 R)
• M35: 9,611,065 km (0.089 R)
• M36: 10,018,420 km (0.051 R)
• M37: 10,093,069 km (0.052 R)
• M38: 10,811,887 km (0.063 R)
• M39: 11,042,268 km (0.067 R)
• M40: 11,119,460 km (0.088 R)
• M41: 11,390,980 km (0.106 R)
• M42: 11,547,160 km (0.105 R)
• M43: 11,822,121 km (0.085 R)
• M44: 12,458,810 km (0.089 R)
• M45: 12,539,144 km (0.09 R)
• M46: 12,740,951 km (0.101 R)
• M47: 13,025,038 km (0.096 R)
• M48: 13,931,900 km (0.077 R)
• M49: 14,224,813 km (0.043 R)
• M50: 14,987,163 km (0.106 R)
• M51: 15,330,191 km (0.071 R)
• M52: 16,463,096 km (0.093 R)
• M53: 17,173,686 km (0.116 R)
• M54: 17,487,692 km (0.117 R)
• M55: 17,622,928 km (0.069 R)
• M56: 18,716,788 km (0.095 R)
• M57: 19,132,670 km (0.11 R)
• M58: 19,411,670 km (0.104 R)
• M59: 19,645,192 km (0.083 R)
• M60: 21,836,801 km (0.099 R)
• M61: 22,862,893 km (0.098 R)
• M62: 23,109,430 km (0.104 R)
• M63: 24,205,085 km (0.043 R)
• M64: 24,456,559 km (0.118 R)
• M65: 25,063,328 km (0.109 R)
• M66: 27,017,675 km (0.094 R)
• M67: 27,697,447 km (0.068 R)
• M68: 27,960,440 km (0.099 R)
• M69: 28,541,778 km (0.116 R)
• M70: 29,341,079 km (0.12 R)
• M71: 29,501,897 km (0.068 R)
• M72: 30,635,250 km (0.092 R)
• M73: 30,907,219 km (0.073 R)
• M74: 31,289,292 km (0.031 R)
• M75: 31,727,913 km (0.116 R)
• M76: 32,389,734 km (0.057 R)
• M77: 32,944,593 km (0.12 R)
• M78: 34,007,635 km (0.102 R)
• M79: 34,120,133 km (0.049 R)
• M80: 34,232,930 km (0.117 R)
• M81: 34,402,125 km (0.049 R)
• M82: 36,052,488 km (0.036 R)
• M83: 36,224,676 km (0.086 R)
• M84: 36,858,522 km (0.091 R)
• M85: 37,205,738 km (0.113 R)
• M86: 37,903,463 km (0.047 R)
• M87: 38,370,956 km (0.111 R)
• M88: 39,134,803 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.6

Radius: 13

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.89 AU - 5.53 AU

Year: 6600 Days

Day: 7.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 27,836,844 km

• M1: 207,043 km (0.095 R)
• M2: 335,997 km (0.118 R)
• M3: 600,935 km (0.079 R)
• M4: 768,185 km (0.076 R)
• M5: 858,393 km (0.115 R)
• M6: 1,135,298 km (0.097 R)
• M7: 1,498,372 km (0.11 R)
• M8: 1,733,989 km (0.066 R)
• M9: 1,815,221 km (0.112 R)
• M10: 1,981,873 km (0.079 R)
• M11: 2,110,377 km (0.074 R)
• M12: 2,219,733 km (0.101 R)
• M13: 2,443,980 km (0.082 R)
• M14: 2,699,643 km (0.054 R)
• M15: 2,915,363 km (0.036 R)
• M16: 3,013,200 km (0.088 R)
• M17: 3,364,157 km (0.071 R)
• M18: 3,834,941 km (0.11 R)
• M19: 4,105,564 km (0.113 R)
• M20: 5,340,195 km (0.082 R)
• M21: 5,951,452 km (0.118 R)
• M22: 6,044,951 km (0.058 R)
• M23: 6,202,178 km (0.076 R)
• M24: 6,456,495 km (0.082 R)
• M25: 6,584,999 km (0.114 R)
• M26: 6,877,164 km (0.097 R)
• M27: 8,088,308 km (0.071 R)
• M28: 8,296,548 km (0.091 R)
• M29: 8,932,190 km (0.115 R)
• M30: 11,200,841 km (0.092 R)
• M31: 11,472,212 km (0.05 R)
• M32: 12,739,904 km (0.089 R)
• M33: 13,554,764 km (0.113 R)
• M34: 14,302,604 km (0.1 R)
• M35: 14,639,199 km (0.118 R)
• M36: 15,021,122 km (0.07 R)
• M37: 15,406,337 km (0.093 R)
• M38: 16,493,464 km (0.115 R)
• M39: 16,890,946 km (0.097 R)
• M40: 17,246,839 km (0.053 R)
• M41: 17,425,758 km (0.099 R)
• M42: 17,695,184 km (0.094 R)
• M43: 17,830,570 km (0.093 R)
• M44: 18,284,001 km (0.119 R)
• M45: 18,833,026 km (0.094 R)
• M46: 19,341,210 km (0.099 R)
• M47: 19,667,034 km (0.113 R)
• M48: 19,900,706 km (0.094 R)
• M49: 20,088,451 km (0.119 R)
• M50: 20,418,314 km (0.115 R)
• M51: 20,560,283 km (0.107 R)
• M52: 21,035,705 km (0.067 R)
• M53: 21,418,675 km (0.074 R)
• M54: 21,949,149 km (0.101 R)
• M55: 22,581,649 km (0.09 R)
• M56: 22,875,459 km (0.064 R)
• M57: 23,814,635 km (0.047 R)
• M58: 24,163,796 km (0.074 R)
• M59: 24,414,223 km (0.089 R)
• M60: 24,816,791 km (0.117 R)
• M61: 25,272,316 km (0.054 R)
• M62: 25,679,522 km (0.045 R)
• M63: 26,140,134 km (0.06 R)
• M64: 27,486,365 km (0.029 R)
• M65: 27,800,221 km (0.108 R)
• M66: 28,696,013 km (0.094 R)
• M67: 29,654,786 km (0.051 R)
• M68: 30,084,281 km (0.058 R)
• M69: 30,191,992 km (0.118 R)
• M70: 34,999,768 km (0.11 R)
• M71: 36,080,912 km (0.086 R)
• M72: 37,000,041 km (0.107 R)
• M73: 38,217,918 km (0.119 R)
• M74: 38,568,276 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.9

Radius: 12.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.66 AU - 5.76 AU

Year: 6600 Days

Day: 12.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 27,836,844 km

• M1: 169,345 km (0.096 R)
• M2: 335,548 km (0.085 R)
• M3: 426,952 km (0.097 R)
• M4: 530,324 km (0.111 R)
• M5: 635,043 km (0.104 R)
• M6: 738,415 km (0.101 R)
• M7: 889,659 km (0.118 R)
• M8: 1,166,415 km (0.1 R)
• M9: 1,249,142 km (0.106 R)
• M10: 1,640,191 km (0.102 R)
• M11: 1,870,871 km (0.089 R)
• M12: 2,026,004 km (0.031 R)
• M13: 2,127,132 km (0.073 R)
• M14: 2,455,948 km (0.053 R)
• M15: 2,610,932 km (0.1 R)
• M16: 2,769,206 km (0.102 R)
• M17: 3,095,479 km (0.09 R)
• M18: 3,314,341 km (0.086 R)
• M19: 3,696,563 km (0.068 R)
• M20: 3,803,227 km (0.081 R)
• M21: 4,203,551 km (0.103 R)
• M22: 4,333,701 km (0.088 R)
• M23: 4,522,194 km (0.06 R)
• M24: 4,655,785 km (0.061 R)
• M25: 4,771,274 km (0.042 R)
• M26: 4,946,304 km (0.026 R)
• M27: 5,044,590 km (0.063 R)
• M28: 5,709,253 km (0.12 R)
• M29: 5,978,679 km (0.058 R)
• M30: 6,062,454 km (0.087 R)
• M31: 6,209,957 km (0.072 R)
• M32: 6,337,415 km (0.09 R)
• M33: 6,812,238 km (0.096 R)
• M34: 7,009,707 km (0.093 R)
• M35: 7,298,581 km (0.096 R)
• M36: 7,523,277 km (0.096 R)
• M37: 7,864,809 km (0.117 R)
• M38: 8,351,600 km (0.088 R)
• M39: 9,281,501 km (0.094 R)
• M40: 9,969,352 km (0.11 R)
• M41: 10,597,513 km (0.066 R)
• M42: 10,699,240 km (0.081 R)
• M43: 10,929,172 km (0.072 R)
• M44: 11,342,211 km (0.061 R)
• M45: 11,655,320 km (0.11 R)
• M46: 11,918,462 km (0.113 R)
• M47: 12,719,559 km (0.089 R)
• M48: 13,099,388 km (0.073 R)
• M49: 13,235,971 km (0.066 R)
• M50: 14,571,132 km (0.075 R)
• M51: 15,168,775 km (0.099 R)
• M52: 15,456,153 km (0.098 R)
• M53: 16,123,958 km (0.069 R)
• M54: 16,387,848 km (0.036 R)
• M55: 16,505,731 km (0.102 R)
• M56: 16,682,855 km (0.09 R)
• M57: 17,427,853 km (0.074 R)
• M58: 17,910,455 km (0.083 R)
• M59: 18,031,779 km (0.104 R)
• M60: 18,366,729 km (0.115 R)
• M61: 18,827,042 km (0.116 R)
• M62: 19,104,994 km (0.116 R)
• M63: 19,259,978 km (0.063 R)
• M64: 19,477,643 km (0.099 R)
• M65: 19,571,291 km (0.044 R)
• M66: 19,758,887 km (0.116 R)
• M67: 19,978,496 km (0.077 R)
• M68: 20,420,109 km (0.037 R)
• M69: 20,642,113 km (0.109 R)
• M70: 20,896,878 km (0.114 R)
• M71: 21,473,877 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.4

Radius: 10.4

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.71 AU - 5.81 AU

Year: 6705 Days

Day: 13 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 27,836,844 km

• M1: 287,976 km (0.1 R)
• M2: 732,880 km (0.106 R)
• M3: 992,432 km (0.112 R)
• M4: 1,085,482 km (0.118 R)
• M5: 1,252,433 km (0.071 R)
• M6: 1,383,332 km (0.092 R)
• M7: 1,611,917 km (0.072 R)
• M8: 1,902,586 km (0.101 R)
• M9: 2,003,265 km (0.082 R)
• M10: 2,210,159 km (0.086 R)
• M11: 2,334,026 km (0.073 R)
• M12: 2,515,189 km (0.12 R)
• M13: 2,776,686 km (0.076 R)
• M14: 2,853,131 km (0.042 R)
• M15: 3,468,875 km (0.117 R)
• M16: 3,697,162 km (0.091 R)
• M17: 3,887,749 km (0.075 R)
• M18: 4,796,407 km (0.105 R)
• M19: 5,027,835 km (0.057 R)
• M20: 5,646,721 km (0.116 R)
• M21: 5,891,164 km (0.09 R)
• M22: 6,365,240 km (0.056 R)
• M23: 6,543,112 km (0.076 R)
• M24: 7,060,122 km (0.115 R)
• M25: 7,217,798 km (0.102 R)
• M26: 7,996,605 km (0.115 R)
• M27: 8,188,539 km (0.094 R)
• M28: 8,661,268 km (0.111 R)
• M29: 8,971,833 km (0.104 R)
• M30: 9,257,266 km (0.066 R)
• M31: 9,401,179 km (0.115 R)
• M32: 9,691,249 km (0.047 R)
• M33: 9,778,914 km (0.101 R)
• M34: 10,102,344 km (0.108 R)
• M35: 10,399,446 km (0.09 R)
• M36: 10,759,677 km (0.098 R)
• M37: 11,032,693 km (0.086 R)
• M38: 11,215,951 km (0.111 R)
• M39: 11,554,491 km (0.102 R)
• M40: 11,678,507 km (0.111 R)
• M41: 11,896,471 km (0.04 R)
• M42: 12,241,743 km (0.1 R)
• M43: 12,622,171 km (0.108 R)
• M44: 13,297,456 km (0.105 R)
• M45: 13,819,851 km (0.097 R)
• M46: 13,885,525 km (0.088 R)
• M47: 14,149,715 km (0.119 R)
• M48: 14,215,986 km (0.1 R)
• M49: 14,783,561 km (0.053 R)
• M50: 14,985,668 km (0.107 R)
• M51: 15,358,615 km (0.116 R)
• M52: 15,495,048 km (0.05 R)
• M53: 16,880,923 km (0.108 R)
• M54: 17,767,141 km (0.101 R)
• M55: 18,018,016 km (0.069 R)
• M56: 18,234,036 km (0.055 R)
• M57: 18,887,030 km (0.09 R)
• M58: 19,106,341 km (0.106 R)
• M59: 19,584,605 km (0.101 R)
• M60: 20,365,506 km (0.098 R)
• M61: 20,703,298 km (0.05 R)
• M62: 20,854,093 km (0.091 R)
• M63: 22,226,952 km (0.087 R)
• M64: 22,924,378 km (0.03 R)
• M65: 23,865,348 km (0.041 R)
• M66: 24,459,850 km (0.025 R)
• M67: 24,579,379 km (0.041 R)
• M68: 25,623,123 km (0.101 R)
• M69: 25,704,056 km (0.108 R)
• M70: 25,866,070 km (0.082 R)
• M71: 25,987,843 km (0.07 R)
• M72: 26,191,146 km (0.065 R)
• M73: 26,558,409 km (0.118 R)
• M74: 27,422,337 km (0.091 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 19,204 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit