🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 11.2

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.46 AU - 0.68 AU

Year: 287 Days

Day: 6.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 48,873,641 km

• M1: 139,575 km (0.095 R)
• M2: 214,823 km (0.074 R)
• M3: 287,378 km (0.108 R)
• M4: 361,578 km (0.117 R)
• M5: 440,416 km (0.081 R)
• M6: 516,711 km (0.112 R)
• M7: 636,988 km (0.058 R)
• M8: 743,950 km (0.111 R)
• M9: 841,937 km (0.112 R)
• M10: 961,166 km (0.116 R)
• M11: 1,096,852 km (0.072 R)
• M12: 1,246,599 km (0.071 R)
• M13: 1,511,686 km (0.112 R)
• M14: 1,635,105 km (0.109 R)
• M15: 1,712,447 km (0.118 R)
• M16: 1,795,174 km (0.091 R)
• M17: 1,913,357 km (0.101 R)
• M18: 2,008,202 km (0.11 R)
• M19: 2,113,519 km (0.112 R)
• M20: 2,184,727 km (0.074 R)
• M21: 2,279,572 km (0.12 R)
• M22: 2,408,077 km (0.103 R)
• M23: 2,510,851 km (0.094 R)
• M24: 2,619,908 km (0.093 R)
• M25: 2,725,673 km (0.071 R)
• M26: 2,852,682 km (0.106 R)
• M27: 2,976,698 km (0.118 R)
• M28: 3,087,251 km (0.1 R)
• M29: 3,209,473 km (0.07 R)
• M30: 3,328,253 km (0.096 R)
• M31: 3,437,909 km (0.04 R)
• M32: 3,511,660 km (0.043 R)
• M33: 3,607,403 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.8

Radius: 12.5

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.71 AU - 0.89 AU

Year: 477 Days

Day: 11 Hours

Environment

Temp: -157 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 48,873,641 km

• M1: 155,881 km (0.068 R)
• M2: 251,175 km (0.095 R)
• M3: 331,210 km (0.074 R)
• M4: 420,819 km (0.073 R)
• M5: 502,050 km (0.101 R)
• M6: 614,847 km (0.105 R)
• M7: 717,621 km (0.11 R)
• M8: 795,711 km (0.111 R)
• M9: 887,863 km (0.088 R)
• M10: 1,045,390 km (0.083 R)
• M11: 1,131,857 km (0.086 R)
• M12: 1,212,640 km (0.055 R)
• M13: 1,312,572 km (0.087 R)
• M14: 1,463,516 km (0.117 R)
• M15: 1,543,401 km (0.101 R)
• M16: 1,634,058 km (0.076 R)
• M17: 1,792,631 km (0.098 R)
• M18: 1,966,314 km (0.112 R)
• M19: 2,070,135 km (0.117 R)
• M20: 2,160,792 km (0.062 R)
• M21: 2,335,672 km (0.114 R)
• M22: 2,435,603 km (0.108 R)
• M23: 2,563,808 km (0.08 R)
• M24: 2,788,205 km (0.113 R)
• M25: 2,984,926 km (0.101 R)
• M26: 3,203,938 km (0.036 R)
• M27: 3,315,388 km (0.051 R)
• M28: 3,410,233 km (0.076 R)
• M29: 3,609,049 km (0.057 R)
• M30: 3,725,137 km (0.104 R)
• M31: 3,861,271 km (0.113 R)
• M32: 4,017,900 km (0.085 R)
• M33: 4,215,219 km (0.078 R)
• M34: 4,305,427 km (0.101 R)
• M35: 4,415,830 km (0.086 R)
• M36: 4,546,878 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.8

Radius: 8.6

Gravity: 13.3 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.97 AU - 1.35 AU

Year: 833 Days

Day: 8.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 48,873,641 km

• M1: 127,607 km (0.084 R)
• M2: 185,651 km (0.071 R)
• M3: 342,280 km (0.091 R)
• M4: 405,859 km (0.074 R)
• M5: 489,634 km (0.087 R)
• M6: 569,070 km (0.106 R)
• M7: 630,256 km (0.113 R)
• M8: 809,923 km (0.114 R)
• M9: 873,652 km (0.104 R)
• M10: 1,013,226 km (0.052 R)
• M11: 1,075,459 km (0.096 R)
• M12: 1,196,484 km (0.107 R)
• M13: 1,314,816 km (0.108 R)
• M14: 1,547,291 km (0.092 R)
• M15: 1,759,421 km (0.091 R)
• M16: 1,818,213 km (0.108 R)
• M17: 1,972,298 km (0.116 R)
• M18: 2,095,268 km (0.068 R)
• M19: 2,248,157 km (0.118 R)
• M20: 2,376,811 km (0.046 R)
• M21: 2,451,311 km (0.074 R)
• M22: 2,555,281 km (0.052 R)
• M23: 2,612,577 km (0.081 R)
• M24: 2,777,284 km (0.03 R)
• M25: 2,925,536 km (0.108 R)
• M26: 3,066,308 km (0.089 R)
• M27: 3,250,612 km (0.037 R)
• M28: 3,354,583 km (0.107 R)
• M29: 3,459,750 km (0.115 R)
• M30: 3,533,950 km (0.078 R)
• M31: 3,651,684 km (0.029 R)
• M32: 3,792,456 km (0.06 R)
• M33: 3,946,242 km (0.102 R)
• M34: 4,012,664 km (0.073 R)
• M35: 4,068,464 km (0.118 R)
• M36: 4,248,430 km (0.042 R)
• M37: 4,339,535 km (0.08 R)
• M38: 4,408,200 km (0.115 R)
• M39: 5,358,596 km (0.117 R)
• M40: 5,457,031 km (0.082 R)
• M41: 5,680,830 km (0.047 R)
• M42: 5,869,622 km (0.119 R)
• M43: 6,357,162 km (0.074 R)
• M44: 6,474,596 km (0.075 R)
• M45: 6,645,437 km (0.081 R)
• M46: 7,031,848 km (0.045 R)
• M47: 7,535,694 km (0.089 R)
• M48: 8,022,934 km (0.109 R)
• M49: 8,121,668 km (0.092 R)
• M50: 8,263,338 km (0.03 R)
• M51: 8,348,758 km (0.112 R)
• M52: 8,520,347 km (0.078 R)
• M53: 8,621,026 km (0.098 R)
• M54: 8,867,264 km (0.105 R)
• M55: 8,925,607 km (0.039 R)
• M56: 9,071,764 km (0.116 R)
• M57: 9,174,688 km (0.095 R)
• M58: 9,784,898 km (0.033 R)
• M59: 10,148,121 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.4

Radius: 14.6

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.49 AU - 1.71 AU

Year: 1350 Days

Day: 6.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 48,873,641 km

• M1: 185,950 km (0.103 R)
• M2: 277,953 km (0.095 R)
• M3: 443,707 km (0.104 R)
• M4: 688,749 km (0.084 R)
• M5: 865,274 km (0.114 R)
• M6: 959,970 km (0.048 R)
• M7: 1,129,165 km (0.079 R)
• M8: 1,242,410 km (0.11 R)
• M9: 1,368,521 km (0.109 R)
• M10: 1,552,676 km (0.103 R)
• M11: 1,792,631 km (0.104 R)
• M12: 2,095,268 km (0.092 R)
• M13: 2,425,281 km (0.093 R)
• M14: 2,683,935 km (0.091 R)
• M15: 2,794,488 km (0.027 R)
• M16: 3,275,894 km (0.087 R)
• M17: 3,370,590 km (0.101 R)
• M18: 3,562,823 km (0.104 R)
• M19: 4,008,924 km (0.114 R)
• M20: 4,225,990 km (0.073 R)
• M21: 4,459,961 km (0.053 R)
• M22: 4,578,592 km (0.066 R)
• M23: 4,684,957 km (0.083 R)
• M24: 4,846,223 km (0.101 R)
• M25: 5,187,905 km (0.119 R)
• M26: 5,424,868 km (0.117 R)
• M27: 5,938,437 km (0.108 R)
• M28: 6,040,164 km (0.106 R)
• M29: 6,201,281 km (0.047 R)
• M30: 6,334,123 km (0.099 R)
• M31: 7,166,486 km (0.085 R)
• M32: 7,524,922 km (0.104 R)
• M33: 7,666,891 km (0.108 R)
• M34: 8,033,555 km (0.106 R)
• M35: 8,194,672 km (0.026 R)
• M36: 8,389,598 km (0.103 R)
• M37: 8,536,802 km (0.096 R)
• M38: 9,184,711 km (0.063 R)
• M39: 9,302,744 km (0.117 R)
• M40: 9,489,143 km (0.037 R)
• M41: 9,883,034 km (0.034 R)
• M42: 10,387,179 km (0.096 R)
• M43: 10,510,298 km (0.044 R)
• M44: 10,633,716 km (0.106 R)
• M45: 10,775,385 km (0.059 R)
• M46: 11,060,818 km (0.12 R)
• M47: 11,402,948 km (0.077 R)
• M48: 11,712,017 km (0.042 R)
• M49: 11,840,073 km (0.058 R)
• M50: 12,060,730 km (0.107 R)
• M51: 12,208,682 km (0.118 R)
• M52: 12,301,283 km (0.08 R)
• M53: 12,618,431 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.6

Radius: 13.4

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.57 AU - 3.57 AU

Year: 3587 Days

Day: 14.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 48,873,641 km

• M1: 225,294 km (0.053 R)
• M2: 446,550 km (0.117 R)
• M3: 541,843 km (0.093 R)
• M4: 923,767 km (0.057 R)
• M5: 1,412,653 km (0.053 R)
• M6: 1,635,554 km (0.072 R)
• M7: 1,870,422 km (0.088 R)
• M8: 2,227,512 km (0.119 R)
• M9: 2,455,799 km (0.115 R)
• M10: 2,623,647 km (0.112 R)
• M11: 2,882,901 km (0.034 R)
• M12: 3,006,618 km (0.084 R)
• M13: 3,241,487 km (0.062 R)
• M14: 3,787,369 km (0.112 R)
• M15: 4,021,640 km (0.119 R)
• M16: 4,260,996 km (0.082 R)
• M17: 4,361,975 km (0.032 R)
• M18: 4,649,352 km (0.084 R)
• M19: 4,921,920 km (0.098 R)
• M20: 5,504,603 km (0.106 R)
• M21: 5,615,006 km (0.113 R)
• M22: 5,905,526 km (0.113 R)
• M23: 6,155,055 km (0.083 R)
• M24: 6,408,324 km (0.113 R)
• M25: 6,806,404 km (0.104 R)
• M26: 7,068,350 km (0.085 R)
• M27: 7,357,822 km (0.101 R)
• M28: 7,577,581 km (0.098 R)
• M29: 7,923,750 km (0.109 R)
• M30: 8,606,216 km (0.032 R)
• M31: 8,812,063 km (0.086 R)
• M32: 8,915,584 km (0.091 R)
• M33: 9,333,710 km (0.052 R)
• M34: 9,545,391 km (0.11 R)
• M35: 9,865,680 km (0.062 R)
• M36: 10,380,147 km (0.086 R)
• M37: 10,516,880 km (0.103 R)
• M38: 10,903,291 km (0.104 R)
• M39: 11,519,934 km (0.065 R)
• M40: 11,918,313 km (0.036 R)
• M41: 12,032,905 km (0.056 R)
• M42: 12,119,223 km (0.094 R)
• M43: 12,292,307 km (0.117 R)
• M44: 13,526,789 km (0.117 R)
• M45: 13,706,456 km (0.114 R)
• M46: 14,098,253 km (0.097 R)
• M47: 14,249,945 km (0.097 R)
• M48: 14,402,236 km (0.114 R)
• M49: 14,585,643 km (0.117 R)
• M50: 15,295,933 km (0.1 R)
• M51: 15,577,028 km (0.077 R)
• M52: 15,796,787 km (0.115 R)
• M53: 16,017,594 km (0.037 R)
• M54: 16,239,447 km (0.076 R)
• M55: 16,686,146 km (0.073 R)
• M56: 17,363,825 km (0.097 R)
• M57: 17,591,812 km (0.067 R)
• M58: 17,689,799 km (0.083 R)
• M59: 18,779,619 km (0.027 R)
• M60: 19,282,268 km (0.083 R)
• M61: 19,619,761 km (0.105 R)
• M62: 20,472,169 km (0.102 R)
• M63: 20,644,057 km (0.097 R)
• M64: 20,747,429 km (0.112 R)
• M65: 21,128,006 km (0.086 R)
• M66: 21,266,983 km (0.078 R)
• M67: 21,406,259 km (0.079 R)
• M68: 22,354,410 km (0.086 R)
• M69: 22,602,443 km (0.045 R)
• M70: 22,958,336 km (0.086 R)
• M71: 23,208,614 km (0.036 R)
• M72: 23,351,928 km (0.095 R)
• M73: 24,327,755 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.5

Radius: 9.7

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.87 AU - 5.19 AU

Year: 7523 Days

Day: 9.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 48,873,641 km

• M1: 173,384 km (0.114 R)
• M2: 244,892 km (0.045 R)
• M3: 374,294 km (0.115 R)
• M4: 449,542 km (0.032 R)
• M5: 738,714 km (0.112 R)
• M6: 852,558 km (0.115 R)
• M7: 1,420,731 km (0.094 R)
• M8: 1,620,594 km (0.101 R)
• M9: 1,714,541 km (0.089 R)
• M10: 1,967,511 km (0.092 R)
• M11: 2,170,216 km (0.107 R)
• M12: 2,295,280 km (0.116 R)
• M13: 2,401,345 km (0.107 R)
• M14: 2,530,897 km (0.116 R)
• M15: 2,618,561 km (0.097 R)
• M16: 3,095,330 km (0.067 R)
• M17: 4,000,397 km (0.081 R)
• M18: 4,495,266 km (0.067 R)
• M19: 4,655,635 km (0.106 R)
• M20: 5,203,912 km (0.066 R)
• M21: 5,429,056 km (0.102 R)
• M22: 5,628,620 km (0.113 R)
• M23: 6,064,398 km (0.096 R)
• M24: 6,152,960 km (0.073 R)
• M25: 6,271,592 km (0.118 R)
• M26: 6,937,900 km (0.114 R)
• M27: 7,279,432 km (0.102 R)
• M28: 7,882,461 km (0.081 R)
• M29: 9,510,685 km (0.067 R)
• M30: 9,855,358 km (0.09 R)
• M31: 10,099,203 km (0.111 R)
• M32: 10,169,214 km (0.108 R)
• M33: 10,380,297 km (0.074 R)
• M34: 10,592,726 km (0.104 R)
• M35: 10,699,539 km (0.047 R)
• M36: 10,806,801 km (0.116 R)
• M37: 11,022,072 km (0.049 R)
• M38: 11,094,178 km (0.108 R)
• M39: 11,493,754 km (0.114 R)
• M40: 12,194,770 km (0.1 R)
• M41: 12,682,459 km (0.073 R)
• M42: 13,987,999 km (0.043 R)
• M43: 15,376,118 km (0.115 R)
• M44: 16,973,973 km (0.07 R)
• M45: 17,140,774 km (0.095 R)
• M46: 18,752,991 km (0.111 R)
• M47: 18,839,309 km (0.107 R)
• M48: 19,577,275 km (0.08 R)
• M49: 19,971,765 km (0.056 R)
• M50: 20,947,143 km (0.068 R)
• M51: 21,485,845 km (0.091 R)
• M52: 22,256,573 km (0.077 R)
• M53: 22,485,009 km (0.078 R)
• M54: 22,576,712 km (0.093 R)
• M55: 23,221,329 km (0.06 R)
• M56: 23,406,681 km (0.114 R)
• M57: 24,105,902 km (0.066 R)
• M58: 24,199,550 km (0.108 R)
• M59: 24,764,731 km (0.067 R)
• M60: 25,191,384 km (0.05 R)
• M61: 25,907,808 km (0.046 R)
• M62: 26,148,212 km (0.082 R)
• M63: 26,292,723 km (0.088 R)
• M64: 27,214,396 km (0.113 R)
• M65: 27,949,520 km (0.04 R)
• M66: 29,339,134 km (0.06 R)
• M67: 29,489,331 km (0.104 R)
• M68: 29,840,886 km (0.115 R)
• M69: 30,345,479 km (0.088 R)
• M70: 30,802,052 km (0.117 R)
• M71: 31,773,241 km (0.101 R)
• M72: 32,236,845 km (0.116 R)
• M73: 33,275,054 km (0.054 R)
• M74: 33,640,971 km (0.067 R)
• M75: 35,011,886 km (0.076 R)
• M76: 35,118,100 km (0.043 R)
• M77: 35,490,748 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.1

Radius: 4.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 9.68 AU - 11.52 AU

Year: 23014 Days

Day: 16.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 48,873,641 km

• M1: 353,500 km (0.106 R)
• M2: 422,464 km (0.115 R)
• M3: 496,216 km (0.07 R)
• M4: 526,884 km (0.078 R)
• M5: 725,250 km (0.044 R)
• M6: 760,406 km (0.087 R)
• M7: 814,560 km (0.085 R)
• M8: 851,212 km (0.068 R)
• M9: 926,460 km (0.114 R)
• M10: 984,354 km (0.12 R)
• M11: 1,378,844 km (0.12 R)
• M12: 1,651,112 km (0.114 R)
• M13: 1,721,722 km (0.103 R)
• M14: 1,769,444 km (0.032 R)
• M15: 3,243,731 km (0.114 R)
• M16: 3,573,295 km (0.108 R)
• M17: 3,976,611 km (0.102 R)
• M18: 5,410,057 km (0.115 R)
• M19: 5,550,829 km (0.117 R)
• M20: 5,586,284 km (0.106 R)
• M21: 5,692,797 km (0.038 R)
• M22: 6,532,191 km (0.074 R)
• M23: 6,833,182 km (0.105 R)
• M24: 7,762,933 km (0.093 R)
• M25: 8,001,541 km (0.073 R)
• M26: 8,445,249 km (0.117 R)
• M27: 9,230,338 km (0.078 R)
• M28: 9,356,449 km (0.119 R)
• M29: 9,483,159 km (0.11 R)
• M30: 9,952,447 km (0.108 R)
• M31: 10,736,490 km (0.12 R)
• M32: 10,869,183 km (0.046 R)
• M33: 11,405,042 km (0.058 R)
• M34: 11,540,429 km (0.077 R)
• M35: 12,224,988 km (0.112 R)
• M36: 12,781,941 km (0.045 R)
• M37: 12,828,765 km (0.072 R)
• M38: 13,680,875 km (0.104 R)
• M39: 14,113,662 km (0.116 R)
• M40: 14,210,601 km (0.06 R)
• M41: 15,789,158 km (0.087 R)
• M42: 15,990,367 km (0.101 R)
• M43: 16,192,474 km (0.063 R)
• M44: 16,548,068 km (0.056 R)
• M45: 16,855,042 km (0.083 R)
• M46: 17,682,468 km (0.056 R)
• M47: 17,996,175 km (0.069 R)
• M48: 18,153,851 km (0.03 R)
• M49: 18,311,827 km (0.063 R)
• M50: 18,470,251 km (0.098 R)
• M51: 19,376,814 km (0.111 R)
• M52: 19,862,708 km (0.11 R)
• M53: 20,626,405 km (0.033 R)
• M54: 21,845,627 km (0.105 R)
• M55: 22,294,870 km (0.092 R)
• M56: 25,818,349 km (0.11 R)
• M57: 26,055,461 km (0.069 R)
• M58: 27,734,697 km (0.051 R)
• M59: 31,070,730 km (0.093 R)
• M60: 31,133,710 km (0.114 R)
• M61: 31,259,821 km (0.042 R)
• M62: 31,322,952 km (0.07 R)
• M63: 32,465,730 km (0.102 R)
• M64: 32,785,720 km (0.12 R)
• M65: 32,913,925 km (0.118 R)
• M66: 34,140,628 km (0.085 R)
• M67: 34,531,078 km (0.089 R)
• M68: 34,726,902 km (0.108 R)
• M69: 34,988,399 km (0.101 R)
• M70: 35,185,120 km (0.115 R)
• M71: 35,909,323 km (0.068 R)
• M72: 36,041,568 km (0.07 R)
• M73: 36,571,892 km (0.115 R)
• M74: 36,838,176 km (0.112 R)
• M75: 37,372,390 km (0.093 R)
• M76: 38,448,598 km (0.102 R)
• M77: 39,058,508 km (0.107 R)
• M78: 40,150,573 km (0.091 R)
• M79: 40,493,900 km (0.088 R)
• M80: 41,321,924 km (0.106 R)
• M81: 41,599,129 km (0.108 R)
• M82: 42,016,058 km (0.092 R)
• M83: 42,085,771 km (0.065 R)
• M84: 42,994,428 km (0.09 R)
• M85: 43,839,058 km (0.081 R)
• M86: 44,334,227 km (0.103 R)
• M87: 44,618,014 km (0.114 R)
• M88: 44,831,340 km (0.078 R)
• M89: 45,044,966 km (0.117 R)
• M90: 47,344,136 km (0.047 R)
• M91: 48,435,003 km (0.098 R)
• M92: 48,873,624 km (0.059 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 13,483 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit