🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.82 AU - 1.22 AU

Year: 388 Days

Day: 32.6 Hours

Environment

Temp: 8 °C

Axial Tilt: 35.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 40,152,158 km

• M1: 423,512 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.61 AU - 1.81 AU

Year: 842 Days

Day: 43.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.52 AU - 2 AU

Year: 880 Days

Day: 15.4 Hours

Environment

Temp: -61 °C

Axial Tilt: 103 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 40,152,158 km

• M1: 91,255 km (0.068 R)
• M2: 407,953 km (0.085 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.81 AU - 3.01 AU

Year: 1409 Days

Day: 37.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.63 AU - 3.15 AU

Year: 1851 Days

Day: 33.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.7

Radius: 8.4

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.03 AU - 5.07 AU

Year: 4275 Days

Day: 13.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 40,152,158 km

• M1: 172,486 km (0.094 R)
• M2: 386,710 km (0.086 R)
• M3: 457,769 km (0.069 R)
• M4: 525,986 km (0.101 R)
• M5: 623,075 km (0.101 R)
• M6: 753,524 km (0.115 R)
• M7: 808,277 km (0.101 R)
• M8: 893,398 km (0.116 R)
• M9: 1,114,205 km (0.114 R)
• M10: 1,188,106 km (0.089 R)
• M11: 1,454,690 km (0.102 R)
• M12: 1,583,194 km (0.103 R)
• M13: 1,691,354 km (0.1 R)
• M14: 1,826,740 km (0.103 R)
• M15: 2,542,865 km (0.12 R)
• M16: 2,655,811 km (0.071 R)
• M17: 3,064,363 km (0.098 R)
• M18: 3,430,279 km (0.107 R)
• M19: 3,777,945 km (0.085 R)
• M20: 3,874,884 km (0.049 R)
• M21: 4,054,551 km (0.091 R)
• M22: 4,270,421 km (0.093 R)
• M23: 4,507,085 km (0.082 R)
• M24: 4,730,733 km (0.101 R)
• M25: 5,189,101 km (0.085 R)
• M26: 5,314,913 km (0.092 R)
• M27: 5,441,772 km (0.12 R)
• M28: 5,533,027 km (0.105 R)
• M29: 5,680,082 km (0.088 R)
• M30: 5,847,033 km (0.09 R)
• M31: 6,091,177 km (0.043 R)
• M32: 6,338,611 km (0.113 R)
• M33: 6,550,592 km (0.096 R)
• M34: 7,140,456 km (0.077 R)
• M35: 7,462,091 km (0.108 R)
• M36: 7,768,019 km (0.037 R)
• M37: 7,829,653 km (0.091 R)
• M38: 8,015,604 km (0.096 R)
• M39: 8,098,780 km (0.105 R)
• M40: 8,286,824 km (0.06 R)
• M41: 9,010,429 km (0.103 R)
• M42: 9,292,421 km (0.097 R)
• M43: 9,467,451 km (0.08 R)
• M44: 9,555,414 km (0.11 R)
• M45: 9,621,537 km (0.113 R)
• M46: 9,887,522 km (0.091 R)
• M47: 10,178,340 km (0.113 R)
• M48: 10,540,367 km (0.085 R)
• M49: 10,768,653 km (0.099 R)
• M50: 11,114,224 km (0.112 R)
• M51: 11,183,787 km (0.057 R)
• M52: 11,416,711 km (0.101 R)
• M53: 11,557,333 km (0.071 R)
• M54: 12,077,485 km (0.09 R)
• M55: 12,316,393 km (0.115 R)
• M56: 12,436,520 km (0.097 R)
• M57: 12,677,821 km (0.025 R)
• M58: 12,871,999 km (0.106 R)
• M59: 12,945,153 km (0.048 R)
• M60: 13,067,224 km (0.079 R)
• M61: 13,189,595 km (0.056 R)
• M62: 13,733,085 km (0.116 R)
• M63: 14,233,489 km (0.087 R)
• M64: 15,277,982 km (0.112 R)
• M65: 15,484,726 km (0.108 R)
• M66: 15,796,488 km (0.067 R)
• M67: 16,797,298 km (0.116 R)
• M68: 17,466,898 km (0.083 R)
• M69: 17,628,912 km (0.118 R)
• M70: 17,710,144 km (0.066 R)
• M71: 18,036,118 km (0.114 R)
• M72: 18,117,948 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.8

Radius: 12.2

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.01 AU - 5.27 AU

Year: 4390 Days

Day: 8.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 40,152,158 km

• M1: 171,290 km (0.095 R)
• M2: 265,985 km (0.112 R)
• M3: 484,248 km (0.11 R)
• M4: 678,127 km (0.061 R)
• M5: 768,185 km (0.116 R)
• M6: 962,214 km (0.106 R)
• M7: 1,092,064 km (0.065 R)
• M8: 1,228,199 km (0.112 R)
• M9: 1,579,006 km (0.113 R)
• M10: 1,928,317 km (0.048 R)
• M11: 2,267,305 km (0.096 R)
• M12: 2,717,894 km (0.119 R)
• M13: 2,867,941 km (0.078 R)
• M14: 3,355,331 km (0.106 R)
• M15: 3,516,747 km (0.115 R)
• M16: 3,889,694 km (0.057 R)
• M17: 4,145,507 km (0.055 R)
• M18: 4,831,862 km (0.078 R)
• M19: 5,340,494 km (0.064 R)
• M20: 5,553,522 km (0.106 R)
• M21: 5,890,566 km (0.076 R)
• M22: 6,787,854 km (0.087 R)
• M23: 7,096,474 km (0.079 R)
• M24: 7,942,001 km (0.111 R)
• M25: 8,050,011 km (0.102 R)
• M26: 8,131,243 km (0.04 R)
• M27: 8,847,218 km (0.087 R)
• M28: 8,931,142 km (0.11 R)
• M29: 9,212,835 km (0.105 R)
• M30: 9,988,051 km (0.099 R)
• M31: 10,192,402 km (0.108 R)
• M32: 10,368,778 km (0.11 R)
• M33: 11,204,881 km (0.08 R)
• M34: 11,631,234 km (0.11 R)
• M35: 11,754,054 km (0.045 R)
• M36: 12,062,824 km (0.078 R)
• M37: 12,815,002 km (0.062 R)
• M38: 12,973,576 km (0.097 R)
• M39: 13,164,762 km (0.085 R)
• M40: 13,356,995 km (0.091 R)
• M41: 13,679,229 km (0.105 R)
• M42: 13,808,931 km (0.104 R)
• M43: 14,233,190 km (0.105 R)
• M44: 14,860,903 km (0.086 R)
• M45: 15,061,065 km (0.117 R)
• M46: 15,329,294 km (0.102 R)
• M47: 15,734,554 km (0.087 R)
• M48: 15,938,606 km (0.072 R)
• M49: 16,694,075 km (0.111 R)
• M50: 16,798,046 km (0.111 R)
• M51: 16,902,166 km (0.1 R)
• M52: 17,076,148 km (0.111 R)
• M53: 17,884,575 km (0.112 R)
• M54: 18,061,998 km (0.101 R)
• M55: 18,849,332 km (0.064 R)
• M56: 19,575,031 km (0.105 R)
• M57: 19,941,247 km (0.095 R)
• M58: 20,457,808 km (0.109 R)
• M59: 20,643,309 km (0.101 R)
• M60: 20,866,809 km (0.083 R)
• M61: 21,655,040 km (0.088 R)
• M62: 22,071,819 km (0.119 R)
• M63: 22,223,960 km (0.107 R)
• M64: 22,376,550 km (0.047 R)
• M65: 22,644,480 km (0.094 R)
• M66: 22,990,350 km (0.094 R)
• M67: 23,648,581 km (0.087 R)
• M68: 23,804,462 km (0.06 R)
• M69: 24,116,972 km (0.049 R)
• M70: 24,825,318 km (0.052 R)
• M71: 25,102,523 km (0.085 R)
• M72: 25,221,752 km (0.05 R)
• M73: 25,580,338 km (0.079 R)
• M74: 25,940,720 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.3

Radius: 8.3

Gravity: 12.68 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 5.21 AU - 7.55 AU

Year: 6071 Days

Day: 8.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 40,152,158 km

• M1: 124,914 km (0.045 R)
• M2: 268,079 km (0.103 R)
• M3: 411,693 km (0.117 R)
• M4: 481,855 km (0.104 R)
• M5: 719,117 km (0.054 R)
• M6: 959,970 km (0.087 R)
• M7: 1,089,970 km (0.081 R)
• M8: 1,514,828 km (0.096 R)
• M9: 2,327,144 km (0.117 R)
• M10: 2,616,616 km (0.115 R)
• M11: 2,777,284 km (0.057 R)
• M12: 2,870,484 km (0.057 R)
• M13: 3,084,259 km (0.078 R)
• M14: 3,156,665 km (0.11 R)
• M15: 3,628,496 km (0.107 R)
• M16: 3,859,625 km (0.06 R)
• M17: 4,888,410 km (0.103 R)
• M18: 4,944,808 km (0.069 R)
• M19: 5,001,506 km (0.045 R)
• M20: 5,058,353 km (0.089 R)
• M21: 5,115,350 km (0.112 R)
• M22: 5,201,368 km (0.093 R)
• M23: 5,433,095 km (0.04 R)
• M24: 6,861,755 km (0.103 R)
• M25: 6,988,465 km (0.118 R)
• M26: 7,052,044 km (0.104 R)
• M27: 7,308,604 km (0.112 R)
• M28: 7,470,469 km (0.047 R)
• M29: 8,197,066 km (0.109 R)
• M30: 8,466,791 km (0.092 R)
• M31: 9,398,785 km (0.025 R)
• M32: 9,787,889 km (0.039 R)
• M33: 9,966,360 km (0.076 R)
• M34: 10,363,093 km (0.105 R)
• M35: 10,472,150 km (0.1 R)
• M36: 11,023,269 km (0.103 R)
• M37: 11,134,570 km (0.043 R)
• M38: 12,039,038 km (0.097 R)
• M39: 12,732,724 km (0.077 R)
• M40: 14,239,324 km (0.116 R)
• M41: 15,468,121 km (0.107 R)
• M42: 16,560,335 km (0.05 R)
• M43: 17,072,857 km (0.068 R)
• M44: 17,764,298 km (0.078 R)
• M45: 17,851,364 km (0.114 R)
• M46: 18,025,945 km (0.084 R)
• M47: 18,553,128 km (0.088 R)
• M48: 19,219,138 km (0.05 R)
• M49: 19,757,540 km (0.116 R)
• M50: 20,119,268 km (0.066 R)
• M51: 21,356,143 km (0.114 R)
• M52: 21,448,894 km (0.104 R)
• M53: 22,007,193 km (0.11 R)
• M54: 22,194,490 km (0.111 R)
• M55: 22,288,288 km (0.037 R)
• M56: 23,186,024 km (0.116 R)
• M57: 23,328,890 km (0.119 R)
• M58: 23,951,217 km (0.107 R)
• M59: 26,097,648 km (0.105 R)
• M60: 26,345,531 km (0.112 R)
• M61: 26,594,013 km (0.108 R)
• M62: 27,043,405 km (0.074 R)
• M63: 28,254,101 km (0.056 R)
• M64: 29,225,141 km (0.105 R)
• M65: 29,482,449 km (0.089 R)
• M66: 30,623,582 km (0.078 R)
• M67: 31,147,174 km (0.076 R)
• M68: 31,568,143 km (0.114 R)
• M69: 31,726,417 km (0.075 R)
• M70: 32,203,036 km (0.071 R)
• M71: 33,431,683 km (0.116 R)
• M72: 33,808,670 km (0.112 R)
• M73: 34,132,998 km (0.063 R)
• M74: 34,295,461 km (0.096 R)
• M75: 34,349,765 km (0.117 R)
• M76: 34,403,920 km (0.114 R)
• M77: 35,330,828 km (0.098 R)
• M78: 35,879,703 km (0.077 R)
• M79: 37,153,080 km (0.111 R)
• M80: 37,208,880 km (0.075 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.6

Radius: 8

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 8.58 AU - 13.02 AU

Year: 13371 Days

Day: 8.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 40,152,158 km

• M1: 416,630 km (0.087 R)
• M2: 559,795 km (0.107 R)
• M3: 813,513 km (0.114 R)
• M4: 1,031,178 km (0.101 R)
• M5: 1,119,890 km (0.115 R)
• M6: 1,174,343 km (0.059 R)
• M7: 2,515,339 km (0.114 R)
• M8: 2,884,247 km (0.113 R)
• M9: 3,243,731 km (0.088 R)
• M10: 3,727,081 km (0.059 R)
• M11: 4,940,470 km (0.116 R)
• M12: 5,153,796 km (0.116 R)
• M13: 5,246,098 km (0.119 R)
• M14: 5,684,420 km (0.111 R)
• M15: 5,747,999 km (0.062 R)
• M16: 6,496,288 km (0.117 R)
• M17: 6,932,665 km (0.078 R)
• M18: 7,034,840 km (0.118 R)
• M19: 7,448,029 km (0.089 R)
• M20: 8,118,527 km (0.045 R)
• M21: 8,190,334 km (0.051 R)
• M22: 8,771,522 km (0.093 R)
• M23: 9,366,023 km (0.112 R)
• M24: 9,820,502 km (0.081 R)
• M25: 9,973,540 km (0.103 R)
• M26: 10,050,434 km (0.115 R)
• M27: 10,750,851 km (0.086 R)
• M28: 10,869,033 km (0.109 R)
• M29: 11,346,550 km (0.106 R)
• M30: 12,075,540 km (0.065 R)
• M31: 12,280,639 km (0.067 R)
• M32: 12,903,116 km (0.062 R)
• M33: 13,493,429 km (0.065 R)
• M34: 14,438,588 km (0.059 R)
• M35: 14,612,720 km (0.058 R)
• M36: 15,316,428 km (0.087 R)
• M37: 15,494,001 km (0.088 R)
• M38: 15,941,149 km (0.043 R)
• M39: 17,169,198 km (0.112 R)
• M40: 17,864,679 km (0.06 R)
• M41: 18,380,492 km (0.101 R)
• M42: 18,474,739 km (0.104 R)
• M43: 18,758,675 km (0.106 R)
• M44: 19,619,013 km (0.091 R)
• M45: 19,763,674 km (0.106 R)
• M46: 20,248,521 km (0.092 R)
• M47: 21,975,628 km (0.072 R)
• M48: 22,075,709 km (0.046 R)
• M49: 22,528,243 km (0.106 R)
• M50: 22,629,072 km (0.078 R)
• M51: 23,085,345 km (0.08 R)
• M52: 23,238,084 km (0.116 R)
• M53: 23,288,948 km (0.108 R)
• M54: 23,646,935 km (0.077 R)
• M55: 24,523,729 km (0.111 R)
• M56: 25,885,368 km (0.058 R)
• M57: 26,415,543 km (0.088 R)
• M58: 28,299,280 km (0.115 R)
• M59: 28,462,790 km (0.109 R)
• M60: 31,345,840 km (0.104 R)
• M61: 31,797,626 km (0.12 R)
• M62: 31,854,323 km (0.107 R)
• M63: 32,137,961 km (0.086 R)
• M64: 32,764,776 km (0.097 R)
• M65: 35,019,665 km (0.111 R)
• M66: 35,195,293 km (0.101 R)
• M67: 35,371,070 km (0.113 R)
• M68: 35,488,504 km (0.068 R)
• M69: 36,195,504 km (0.07 R)
• M70: 36,432,168 km (0.116 R)
• M71: 37,026,071 km (0.113 R)
• M72: 37,743,094 km (0.037 R)
• M73: 37,863,071 km (0.061 R)
• M74: 38,344,178 km (0.106 R)
• M75: 38,525,042 km (0.092 R)
• M76: 39,738,430 km (0.105 R)
• M77: 40,288,502 km (0.099 R)
• M78: 40,411,172 km (0.102 R)
• M79: 40,656,662 km (0.093 R)
• M80: 40,779,632 km (0.025 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.7

Radius: 12.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 10.76 AU - 12.4 AU

Year: 14845 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 40,152,158 km

• M1: 213,027 km (0.12 R)
• M2: 309,069 km (0.102 R)
• M3: 456,722 km (0.043 R)
• M4: 662,270 km (0.027 R)
• M5: 823,237 km (0.103 R)
• M6: 1,065,286 km (0.09 R)
• M7: 1,204,412 km (0.07 R)
• M8: 1,294,620 km (0.035 R)
• M9: 1,927,868 km (0.115 R)
• M10: 2,013,288 km (0.094 R)
• M11: 2,255,337 km (0.102 R)
• M12: 2,483,773 km (0.069 R)
• M13: 2,648,182 km (0.108 R)
• M14: 2,889,632 km (0.105 R)
• M15: 3,163,696 km (0.102 R)
• M16: 3,342,615 km (0.108 R)
• M17: 3,710,626 km (0.066 R)
• M18: 3,791,259 km (0.066 R)
• M19: 4,774,566 km (0.101 R)
• M20: 4,980,562 km (0.063 R)
• M21: 5,249,688 km (0.104 R)
• M22: 5,990,647 km (0.1 R)
• M23: 6,117,506 km (0.1 R)
• M24: 6,213,099 km (0.095 R)
• M25: 6,341,454 km (0.095 R)
• M26: 6,470,706 km (0.075 R)
• M27: 6,764,666 km (0.091 R)
• M28: 7,129,984 km (0.119 R)
• M29: 7,707,282 km (0.089 R)
• M30: 8,088,906 km (0.093 R)
• M31: 8,655,134 km (0.087 R)
• M32: 9,528,337 km (0.112 R)
• M33: 10,239,675 km (0.032 R)
• M34: 10,353,669 km (0.103 R)
• M35: 10,659,447 km (0.119 R)
• M36: 11,045,858 km (0.084 R)
• M37: 11,594,583 km (0.118 R)
• M38: 11,952,122 km (0.111 R)
• M39: 12,112,192 km (0.109 R)
• M40: 12,273,009 km (0.078 R)
• M41: 12,718,811 km (0.076 R)
• M42: 12,841,332 km (0.12 R)
• M43: 13,128,709 km (0.097 R)
• M44: 13,376,742 km (0.087 R)
• M45: 14,172,603 km (0.069 R)
• M46: 14,725,966 km (0.071 R)
• M47: 14,897,554 km (0.095 R)
• M48: 15,026,807 km (0.075 R)
• M49: 15,242,976 km (0.07 R)
• M50: 15,503,875 km (0.1 R)
• M51: 15,941,747 km (0.117 R)
• M52: 17,054,456 km (0.116 R)
• M53: 18,284,151 km (0.109 R)
• M54: 18,561,356 km (0.1 R)
• M55: 18,839,907 km (0.116 R)
• M56: 19,260,427 km (0.109 R)
• M57: 20,110,591 km (0.092 R)
• M58: 21,408,802 km (0.117 R)
• M59: 22,190,899 km (0.089 R)
• M60: 22,684,423 km (0.055 R)
• M61: 23,582,010 km (0.08 R)
• M62: 23,883,898 km (0.087 R)
• M63: 24,186,984 km (0.107 R)
• M64: 24,592,992 km (0.106 R)
• M65: 26,343,886 km (0.092 R)
• M66: 26,814,072 km (0.112 R)
• M67: 27,498,183 km (0.111 R)
• M68: 27,603,949 km (0.114 R)
• M69: 30,346,227 km (0.107 R)
• M70: 31,059,061 km (0.101 R)
• M71: 31,999,433 km (0.045 R)
• M72: 33,286,723 km (0.107 R)
• M73: 34,078,545 km (0.091 R)
• M74: 34,648,064 km (0.07 R)
• M75: 34,876,649 km (0.111 R)
• M76: 37,307,615 km (0.08 R)
• M77: 38,071,013 km (0.05 R)
• M78: 38,484,351 km (0.059 R)
• M79: 39,017,817 km (0.093 R)
• M80: 39,673,206 km (0.107 R)
• M81: 39,792,734 km (0.069 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 13,905 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit