🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 8

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.51 AU - 0.69 AU

Year: 321 Days

Day: 5.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,329,823 km

• M1: 107,112 km (0.096 R)
• M2: 177,273 km (0.084 R)
• M3: 227,987 km (0.111 R)
• M4: 284,086 km (0.076 R)
• M5: 334,950 km (0.112 R)
• M6: 416,181 km (0.11 R)
• M7: 476,320 km (0.087 R)
• M8: 573,708 km (0.053 R)
• M9: 670,647 km (0.025 R)
• M10: 749,186 km (0.114 R)
• M11: 898,784 km (0.031 R)
• M12: 972,985 km (0.097 R)
• M13: 1,031,178 km (0.048 R)
• M14: 1,104,331 km (0.116 R)
• M15: 1,177,186 km (0.053 R)
• M16: 1,246,749 km (0.081 R)
• M17: 1,372,560 km (0.08 R)
• M18: 1,497,475 km (0.048 R)
• M19: 1,596,957 km (0.097 R)
• M20: 1,674,449 km (0.051 R)
• M21: 1,758,673 km (0.089 R)
• M22: 1,836,015 km (0.104 R)
• M23: 1,886,280 km (0.118 R)
• M24: 1,959,882 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.5

Radius: 12.9

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.54 AU - 0.82 AU

Year: 387 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 81,329,823 km

• M1: 162,314 km (0.045 R)
• M2: 242,947 km (0.057 R)
• M3: 329,564 km (0.113 R)
• M4: 458,817 km (0.048 R)
• M5: 552,016 km (0.071 R)
• M6: 653,294 km (0.057 R)
• M7: 865,573 km (0.09 R)
• M8: 1,021,903 km (0.073 R)
• M9: 1,119,740 km (0.078 R)
• M10: 1,244,505 km (0.117 R)
• M11: 1,398,740 km (0.074 R)
• M12: 1,498,522 km (0.057 R)
• M13: 1,813,126 km (0.112 R)
• M14: 1,933,852 km (0.091 R)
• M15: 2,034,681 km (0.077 R)
• M16: 2,125,935 km (0.075 R)
• M17: 2,218,686 km (0.115 R)
• M18: 2,306,799 km (0.096 R)
• M19: 2,408,227 km (0.105 R)
• M20: 2,572,485 km (0.072 R)
• M21: 2,721,634 km (0.091 R)
• M22: 2,867,342 km (0.06 R)
• M23: 3,009,161 km (0.105 R)
• M24: 3,246,573 km (0.06 R)
• M25: 3,333,789 km (0.107 R)
• M26: 3,449,129 km (0.111 R)
• M27: 3,538,139 km (0.056 R)
• M28: 3,697,760 km (0.052 R)
• M29: 3,859,775 km (0.063 R)
• M30: 4,031,363 km (0.116 R)
• M31: 4,125,311 km (0.08 R)
• M32: 4,330,410 km (0.048 R)
• M33: 4,419,420 km (0.095 R)
• M34: 4,531,469 km (0.101 R)
• M35: 4,667,154 km (0.116 R)
• M36: 4,796,557 km (0.094 R)
• M37: 4,896,338 km (0.115 R)
• M38: 5,082,438 km (0.093 R)
• M39: 5,247,295 km (0.088 R)
• M40: 5,342,290 km (0.08 R)
• M41: 5,453,890 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.9

Radius: 13.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.68 AU - 0.7 AU

Year: 396 Days

Day: 14.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,329,823 km

• M1: 166,802 km (0.113 R)
• M2: 253,269 km (0.101 R)
• M3: 371,452 km (0.032 R)
• M4: 491,579 km (0.104 R)
• M5: 598,840 km (0.113 R)
• M6: 732,132 km (0.036 R)
• M7: 894,446 km (0.094 R)
• M8: 1,016,218 km (0.053 R)
• M9: 1,127,818 km (0.099 R)
• M10: 1,254,229 km (0.111 R)
• M11: 1,403,228 km (0.071 R)
• M12: 1,777,522 km (0.105 R)
• M13: 1,871,170 km (0.097 R)
• M14: 1,982,621 km (0.092 R)
• M15: 2,150,021 km (0.055 R)
• M16: 2,309,642 km (0.054 R)
• M17: 2,442,784 km (0.109 R)
• M18: 2,671,968 km (0.099 R)
• M19: 2,775,788 km (0.037 R)
• M20: 2,903,844 km (0.048 R)
• M21: 3,029,357 km (0.109 R)
• M22: 3,137,666 km (0.11 R)
• M23: 3,310,002 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.5

Radius: 8.5

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.98 AU - 0.98 AU

Year: 670 Days

Day: 12 Hours

Environment

Temp: -183 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 81,329,823 km

• M1: 122,072 km (0.072 R)
• M2: 188,344 km (0.105 R)
• M3: 249,380 km (0.089 R)
• M4: 310,116 km (0.098 R)
• M5: 377,435 km (0.087 R)
• M6: 442,660 km (0.079 R)
• M7: 562,488 km (0.051 R)
• M8: 653,743 km (0.114 R)
• M9: 714,330 km (0.057 R)
• M10: 776,862 km (0.062 R)
• M11: 1,011,282 km (0.063 R)
• M12: 1,082,490 km (0.109 R)
• M13: 1,205,011 km (0.088 R)
• M14: 1,274,424 km (0.069 R)
• M15: 1,377,796 km (0.046 R)
• M16: 1,586,485 km (0.09 R)
• M17: 1,790,986 km (0.088 R)
• M18: 1,981,573 km (0.043 R)
• M19: 2,210,009 km (0.097 R)
• M20: 2,495,143 km (0.104 R)
• M21: 2,750,357 km (0.088 R)
• M22: 3,092,038 km (0.089 R)
• M23: 3,330,497 km (0.111 R)
• M24: 3,420,256 km (0.049 R)
• M25: 3,620,717 km (0.102 R)
• M26: 3,957,163 km (0.081 R)
• M27: 4,090,754 km (0.087 R)
• M28: 4,225,841 km (0.089 R)
• M29: 4,284,184 km (0.098 R)
• M30: 4,391,894 km (0.086 R)
• M31: 4,560,042 km (0.077 R)
• M32: 4,680,020 km (0.049 R)
• M33: 4,760,653 km (0.088 R)
• M34: 4,892,748 km (0.076 R)
• M35: 4,995,073 km (0.119 R)
• M36: 5,056,857 km (0.088 R)
• M37: 5,411,553 km (0.103 R)
• M38: 5,464,511 km (0.04 R)
• M39: 5,581,347 km (0.068 R)
• M40: 5,720,623 km (0.07 R)
• M41: 5,774,478 km (0.072 R)
• M42: 5,926,170 km (0.101 R)
• M43: 6,134,261 km (0.098 R)
• M44: 6,233,743 km (0.117 R)
• M45: 6,557,623 km (0.091 R)
• M46: 6,829,891 km (0.04 R)
• M47: 6,887,187 km (0.111 R)
• M48: 7,071,192 km (0.045 R)
• M49: 7,303,667 km (0.116 R)
• M50: 7,362,160 km (0.04 R)
• M51: 7,456,107 km (0.109 R)
• M52: 7,515,049 km (0.072 R)
• M53: 7,585,958 km (0.097 R)
• M54: 7,668,985 km (0.098 R)
• M55: 7,752,162 km (0.102 R)
• M56: 7,883,808 km (0.093 R)
• M57: 8,197,664 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.9

Radius: 11.9

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.16 AU - 1.24 AU

Year: 907 Days

Day: 10.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 81,329,823 km

• M1: 151,543 km (0.117 R)
• M2: 268,977 km (0.087 R)
• M3: 359,783 km (0.111 R)
• M4: 519,404 km (0.109 R)
• M5: 695,181 km (0.058 R)
• M6: 1,101,788 km (0.114 R)
• M7: 1,212,790 km (0.096 R)
• M8: 1,401,732 km (0.109 R)
• M9: 1,569,431 km (0.056 R)
• M10: 1,760,318 km (0.056 R)
• M11: 1,891,815 km (0.034 R)
• M12: 2,165,130 km (0.087 R)
• M13: 2,279,872 km (0.072 R)
• M14: 2,497,088 km (0.105 R)
• M15: 2,768,907 km (0.117 R)
• M16: 2,952,314 km (0.109 R)
• M17: 3,099,967 km (0.029 R)
• M18: 3,402,753 km (0.039 R)
• M19: 3,485,182 km (0.085 R)
• M20: 3,568,208 km (0.048 R)
• M21: 3,757,599 km (0.1 R)
• M22: 4,037,198 km (0.088 R)
• M23: 4,446,797 km (0.102 R)
• M24: 4,559,743 km (0.04 R)
• M25: 4,916,235 km (0.101 R)
• M26: 5,127,467 km (0.114 R)
• M27: 5,258,066 km (0.113 R)
• M28: 5,377,744 km (0.109 R)
• M29: 5,619,794 km (0.089 R)
• M30: 6,077,264 km (0.061 R)
• M31: 6,380,349 km (0.06 R)
• M32: 6,482,525 km (0.113 R)
• M33: 6,818,372 km (0.043 R)
• M34: 7,014,794 km (0.092 R)
• M35: 7,146,739 km (0.07 R)
• M36: 7,561,125 km (0.103 R)
• M37: 7,642,207 km (0.099 R)
• M38: 7,778,042 km (0.085 R)
• M39: 7,942,151 km (0.118 R)
• M40: 8,052,255 km (0.089 R)
• M41: 8,427,297 km (0.11 R)
• M42: 8,652,442 km (0.087 R)
• M43: 8,822,534 km (0.084 R)
• M44: 8,950,740 km (0.066 R)
• M45: 9,122,777 km (0.079 R)
• M46: 9,238,117 km (0.106 R)
• M47: 9,353,906 km (0.107 R)
• M48: 9,528,487 km (0.075 R)
• M49: 9,763,056 km (0.072 R)
• M50: 9,866,279 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.6

Radius: 8.8

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.31 AU - 2.09 AU

Year: 1530 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 81,329,823 km

• M1: 113,994 km (0.111 R)
• M2: 172,636 km (0.084 R)
• M3: 262,095 km (0.107 R)
• M4: 323,879 km (0.044 R)
• M5: 466,596 km (0.081 R)
• M6: 588,518 km (0.074 R)
• M7: 687,402 km (0.095 R)
• M8: 786,436 km (0.044 R)
• M9: 871,707 km (0.104 R)
• M10: 953,836 km (0.11 R)
• M11: 1,195,586 km (0.093 R)
• M12: 1,353,113 km (0.063 R)
• M13: 1,509,891 km (0.075 R)
• M14: 1,586,635 km (0.04 R)
• M15: 1,704,369 km (0.027 R)
• M16: 1,792,631 km (0.091 R)
• M17: 1,898,846 km (0.073 R)
• M18: 1,998,927 km (0.112 R)
• M19: 2,075,072 km (0.098 R)
• M20: 2,186,822 km (0.089 R)
• M21: 2,283,013 km (0.066 R)
• M22: 2,416,604 km (0.096 R)
• M23: 2,479,734 km (0.081 R)
• M24: 2,571,139 km (0.098 R)
• M25: 2,663,440 km (0.052 R)
• M26: 2,719,540 km (0.112 R)
• M27: 2,785,363 km (0.094 R)
• M28: 3,102,959 km (0.058 R)
• M29: 3,171,774 km (0.026 R)
• M30: 3,231,314 km (0.1 R)
• M31: 3,291,153 km (0.093 R)
• M32: 3,699,705 km (0.046 R)
• M33: 3,995,161 km (0.096 R)
• M34: 4,070,259 km (0.095 R)
• M35: 4,298,545 km (0.096 R)
• M36: 4,441,860 km (0.111 R)
• M37: 4,497,361 km (0.092 R)
• M38: 4,564,381 km (0.11 R)
• M39: 4,642,920 km (0.094 R)
• M40: 4,881,528 km (0.092 R)
• M41: 4,961,862 km (0.104 R)
• M42: 5,019,607 km (0.085 R)
• M43: 5,077,501 km (0.09 R)
• M44: 5,264,349 km (0.064 R)
• M45: 5,584,937 km (0.117 R)
• M46: 5,850,773 km (0.102 R)
• M47: 5,972,994 km (0.093 R)
• M48: 6,257,380 km (0.032 R)
• M49: 6,673,262 km (0.115 R)
• M50: 6,942,538 km (0.114 R)
• M51: 7,020,030 km (0.118 R)
• M52: 7,124,000 km (0.082 R)
• M53: 7,215,404 km (0.117 R)
• M54: 7,892,634 km (0.06 R)
• M55: 7,960,103 km (0.073 R)
• M56: 8,109,401 km (0.077 R)
• M57: 8,369,253 km (0.064 R)
• M58: 8,520,945 km (0.118 R)
• M59: 8,715,422 km (0.039 R)
• M60: 8,813,110 km (0.092 R)
• M61: 9,108,715 km (0.082 R)
• M62: 9,321,743 km (0.058 R)
• M63: 9,507,693 km (0.104 R)
• M64: 9,565,288 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.8

Radius: 11.1

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.55 AU - 2.21 AU

Year: 1779 Days

Day: 7.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 81,329,823 km

• M1: 144,362 km (0.093 R)
• M2: 215,122 km (0.086 R)
• M3: 297,700 km (0.08 R)
• M4: 392,844 km (0.104 R)
• M5: 501,602 km (0.062 R)
• M6: 629,358 km (0.091 R)
• M7: 904,768 km (0.105 R)
• M8: 1,057,059 km (0.041 R)
• M9: 1,360,742 km (0.096 R)
• M10: 1,452,595 km (0.116 R)
• M11: 1,643,033 km (0.097 R)
• M12: 1,741,319 km (0.106 R)
• M13: 2,059,065 km (0.039 R)
• M14: 2,328,940 km (0.032 R)
• M15: 2,440,091 km (0.057 R)
• M16: 3,034,892 km (0.056 R)
• M17: 3,230,716 km (0.073 R)
• M18: 3,583,467 km (0.071 R)
• M19: 3,699,555 km (0.043 R)
• M20: 3,988,578 km (0.104 R)
• M21: 4,162,860 km (0.084 R)
• M22: 4,519,052 km (0.074 R)
• M23: 4,814,059 km (0.118 R)
• M24: 5,014,221 km (0.12 R)
• M25: 5,319,700 km (0.09 R)
• M26: 5,408,113 km (0.088 R)
• M27: 5,482,164 km (0.12 R)
• M28: 5,616,353 km (0.089 R)
• M29: 6,102,247 km (0.091 R)
• M30: 6,210,256 km (0.051 R)
• M31: 6,952,711 km (0.082 R)
• M32: 7,065,657 km (0.102 R)
• M33: 7,277,188 km (0.047 R)
• M34: 7,359,018 km (0.116 R)
• M35: 7,507,270 km (0.096 R)
• M36: 7,907,295 km (0.047 R)
• M37: 8,059,136 km (0.034 R)
• M38: 8,143,958 km (0.108 R)
• M39: 8,246,134 km (0.115 R)
• M40: 8,589,611 km (0.079 R)
• M41: 8,745,791 km (0.072 R)
• M42: 8,902,868 km (0.096 R)
• M43: 8,990,533 km (0.066 R)
• M44: 9,149,107 km (0.108 R)
• M45: 9,255,321 km (0.081 R)
• M46: 9,576,508 km (0.101 R)
• M47: 9,919,386 km (0.074 R)
• M48: 9,992,091 km (0.119 R)
• M49: 10,065,094 km (0.093 R)
• M50: 10,193,001 km (0.095 R)
• M51: 10,376,856 km (0.044 R)
• M52: 10,803,809 km (0.083 R)
• M53: 10,935,006 km (0.085 R)
• M54: 11,123,200 km (0.081 R)
• M55: 11,636,620 km (0.107 R)
• M56: 11,964,090 km (0.108 R)
• M57: 12,080,327 km (0.094 R)
• M58: 12,274,804 km (0.117 R)
• M59: 12,568,764 km (0.078 R)
• M60: 12,984,048 km (0.107 R)
• M61: 13,103,577 km (0.071 R)
• M62: 13,203,358 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 867.5

Radius: 7.3

Gravity: 16.28 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.22 AU - 9.42 AU

Year: 19640 Days

Day: 21.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 81,329,823 km

• M1: 374,144 km (0.026 R)
• M2: 451,187 km (0.097 R)
• M3: 622,776 km (0.063 R)
• M4: 790,026 km (0.044 R)
• M5: 892,351 km (0.092 R)
• M6: 1,759,421 km (0.115 R)
• M7: 2,394,763 km (0.062 R)
• M8: 3,300,428 km (0.069 R)
• M9: 4,346,417 km (0.065 R)
• M10: 4,622,873 km (0.106 R)
• M11: 5,835,364 km (0.12 R)
• M12: 5,885,779 km (0.116 R)
• M13: 6,243,168 km (0.085 R)
• M14: 6,872,077 km (0.103 R)
• M15: 7,741,839 km (0.079 R)
• M16: 7,797,340 km (0.046 R)
• M17: 7,908,791 km (0.107 R)
• M18: 10,063,449 km (0.11 R)
• M19: 11,870,292 km (0.032 R)
• M20: 12,712,229 km (0.051 R)
• M21: 12,909,399 km (0.036 R)
• M22: 13,107,317 km (0.081 R)
• M23: 13,306,431 km (0.095 R)
• M24: 13,439,723 km (0.076 R)
• M25: 13,707,653 km (0.084 R)
• M26: 14,112,764 km (0.113 R)
• M27: 16,338,930 km (0.041 R)
• M28: 16,984,445 km (0.1 R)
• M29: 17,565,333 km (0.113 R)
• M30: 18,597,409 km (0.057 R)
• M31: 18,746,558 km (0.105 R)
• M32: 18,896,006 km (0.098 R)
• M33: 19,953,065 km (0.116 R)
• M34: 20,642,861 km (0.114 R)
• M35: 22,599,302 km (0.057 R)
• M36: 25,188,841 km (0.112 R)
• M37: 25,271,269 km (0.114 R)
• M38: 25,519,003 km (0.032 R)
• M39: 25,601,731 km (0.104 R)
• M40: 26,434,542 km (0.084 R)
• M41: 26,770,090 km (0.114 R)
• M42: 28,899,317 km (0.111 R)
• M43: 30,729,497 km (0.103 R)
• M44: 30,993,986 km (0.1 R)
• M45: 33,227,482 km (0.101 R)
• M46: 35,143,233 km (0.103 R)
• M47: 35,882,545 km (0.109 R)
• M48: 36,626,795 km (0.033 R)
• M49: 36,907,291 km (0.114 R)
• M50: 37,658,721 km (0.075 R)
• M51: 38,509,933 km (0.059 R)
• M52: 38,604,927 km (0.087 R)
• M53: 39,080,948 km (0.092 R)
• M54: 40,520,827 km (0.045 R)
• M55: 41,004,627 km (0.038 R)
• M56: 42,369,408 km (0.032 R)
• M57: 42,860,538 km (0.085 R)
• M58: 44,943,389 km (0.069 R)
• M59: 45,143,401 km (0.118 R)
• M60: 47,059,002 km (0.119 R)
• M61: 47,669,361 km (0.092 R)
• M62: 49,826,413 km (0.119 R)
• M63: 49,929,935 km (0.108 R)
• M64: 50,344,620 km (0.1 R)
• M65: 50,552,412 km (0.112 R)
• M66: 52,435,550 km (0.102 R)
• M67: 53,068,349 km (0.101 R)
• M68: 55,731,939 km (0.086 R)
• M69: 56,485,613 km (0.093 R)
• M70: 58,220,649 km (0.049 R)
• M71: 58,657,176 km (0.064 R)
• M72: 59,094,899 km (0.1 R)
• M73: 60,524,456 km (0.059 R)
• M74: 62,411,334 km (0.1 R)
• M75: 62,634,534 km (0.1 R)
• M76: 64,317,211 km (0.11 R)
• M77: 65,334,028 km (0.083 R)
• M78: 65,560,668 km (0.096 R)
• M79: 66,014,848 km (0.093 R)
• M80: 71,311,809 km (0.049 R)
• M81: 71,778,854 km (0.099 R)
• M82: 72,598,500 km (0.093 R)
• M83: 73,303,555 km (0.099 R)
• M84: 73,421,289 km (0.197 R)
• M85: 73,657,055 km (0.034 R)
• M86: 74,602,214 km (0.102 R)
• M87: 75,194,921 km (0.117 R)
• M88: 75,313,702 km (0.093 R)
• M89: 76,624,029 km (0.223 R)
• M90: 76,743,408 km (0.056 R)
• M91: 77,102,294 km (0.191 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 318 - 12,253 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit