🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.63 AU - 1.03 AU

Year: 263 Days

Day: 42 Hours

Environment

Temp: 115 °C

Axial Tilt: 28.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 59,732,369 km

• M1: 42,187 km (0.047 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.56 AU - 2 AU

Year: 827 Days

Day: 25.3 Hours

Environment

Temp: -43 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.63 AU - 1.97 AU

Year: 841 Days

Day: 44.7 Hours

Environment

Temp: -32 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,732,369 km

• M1: 419,173 km (0.094 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.94 AU - 3.2 AU

Year: 1435 Days

Day: 19.2 Hours

Environment

Temp: -78 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,732,369 km

• M1: 365,617 km (0.074 R)

Asteroid Belt

Center: 4.79 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.5

Radius: 8.4

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.38 AU - 7.62 AU

Year: 6450 Days

Day: 9.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 59,732,369 km

• M1: 129,253 km (0.103 R)
• M2: 373,546 km (0.094 R)
• M3: 451,636 km (0.112 R)
• M4: 645,216 km (0.1 R)
• M5: 833,859 km (0.077 R)
• M6: 973,433 km (0.085 R)
• M7: 1,824,196 km (0.074 R)
• M8: 1,936,395 km (0.049 R)
• M9: 2,094,370 km (0.114 R)
• M10: 2,377,260 km (0.113 R)
• M11: 2,484,671 km (0.08 R)
• M12: 2,625,143 km (0.064 R)
• M13: 2,848,942 km (0.106 R)
• M14: 3,145,744 km (0.059 R)
• M15: 3,591,994 km (0.118 R)
• M16: 3,644,803 km (0.088 R)
• M17: 3,804,872 km (0.117 R)
• M18: 4,298,695 km (0.112 R)
• M19: 4,354,794 km (0.099 R)
• M20: 4,486,739 km (0.096 R)
• M21: 4,715,923 km (0.074 R)
• M22: 5,146,316 km (0.099 R)
• M23: 5,447,008 km (0.114 R)
• M24: 6,065,446 km (0.068 R)
• M25: 6,511,547 km (0.061 R)
• M26: 7,034,391 km (0.108 R)
• M27: 7,390,584 km (0.08 R)
• M28: 7,684,244 km (0.106 R)
• M29: 7,775,349 km (0.074 R)
• M30: 7,866,903 km (0.082 R)
• M31: 8,213,222 km (0.039 R)
• M32: 8,329,759 km (0.113 R)
• M33: 8,968,692 km (0.078 R)
• M34: 9,427,658 km (0.034 R)
• M35: 9,820,203 km (0.119 R)
• M36: 9,944,070 km (0.047 R)
• M37: 10,093,219 km (0.105 R)
• M38: 10,193,150 km (0.098 R)
• M39: 11,365,249 km (0.049 R)
• M40: 11,495,250 km (0.061 R)
• M41: 11,967,381 km (0.075 R)
• M42: 12,046,668 km (0.109 R)
• M43: 12,984,646 km (0.071 R)
• M44: 13,093,254 km (0.063 R)
• M45: 13,202,311 km (0.039 R)
• M46: 13,834,811 km (0.099 R)
• M47: 14,364,836 km (0.086 R)
• M48: 14,505,458 km (0.103 R)
• M49: 14,873,170 km (0.086 R)
• M50: 14,958,441 km (0.094 R)
• M51: 15,358,615 km (0.097 R)
• M52: 15,473,506 km (0.099 R)
• M53: 15,559,974 km (0.047 R)
• M54: 15,965,384 km (0.114 R)
• M55: 16,140,264 km (0.084 R)
• M56: 16,403,706 km (0.119 R)
• M57: 16,609,552 km (0.12 R)
• M58: 16,668,644 km (0.117 R)
• M59: 16,845,917 km (0.12 R)
• M60: 16,905,158 km (0.095 R)
• M61: 16,964,548 km (0.053 R)
• M62: 17,441,616 km (0.096 R)
• M63: 17,621,732 km (0.093 R)
• M64: 17,953,540 km (0.053 R)
• M65: 18,044,346 km (0.111 R)
• M66: 18,165,669 km (0.079 R)
• M67: 18,439,733 km (0.053 R)
• M68: 18,500,769 km (0.055 R)
• M69: 18,653,807 km (0.076 R)
• M70: 18,837,962 km (0.118 R)
• M71: 18,930,264 km (0.091 R)
• M72: 19,611,832 km (0.087 R)
• M73: 19,674,214 km (0.096 R)
• M74: 19,892,926 km (0.095 R)
• M75: 20,018,289 km (0.091 R)
• M76: 20,427,589 km (0.07 R)
• M77: 20,617,429 km (0.106 R)
• M78: 21,062,632 km (0.099 R)
• M79: 21,286,431 km (0.113 R)
• M80: 21,478,963 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.1

Radius: 12.3

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 7.56 AU - 8.52 AU

Year: 7939 Days

Day: 9.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 59,732,369 km

• M1: 157,377 km (0.119 R)
• M2: 395,686 km (0.118 R)
• M3: 1,627,475 km (0.088 R)
• M4: 1,719,478 km (0.045 R)
• M5: 1,947,465 km (0.094 R)
• M6: 2,205,970 km (0.097 R)
• M7: 2,329,239 km (0.094 R)
• M8: 3,220,393 km (0.059 R)
• M9: 3,325,561 km (0.054 R)
• M10: 3,431,925 km (0.112 R)
• M11: 3,587,507 km (0.092 R)
• M12: 4,170,041 km (0.1 R)
• M13: 4,465,945 km (0.097 R)
• M14: 4,570,365 km (0.101 R)
• M15: 4,675,831 km (0.074 R)
• M16: 4,782,046 km (0.106 R)
• M17: 5,548,136 km (0.108 R)
• M18: 5,916,745 km (0.068 R)
• M19: 6,060,808 km (0.075 R)
• M20: 6,440,637 km (0.04 R)
• M21: 6,663,239 km (0.111 R)
• M22: 7,579,526 km (0.092 R)
• M23: 8,180,161 km (0.062 R)
• M24: 8,845,423 km (0.112 R)
• M25: 8,944,307 km (0.101 R)
• M26: 9,193,088 km (0.105 R)
• M27: 9,309,924 km (0.074 R)
• M28: 9,460,869 km (0.097 R)
• M29: 9,731,341 km (0.061 R)
• M30: 10,141,838 km (0.109 R)
• M31: 10,331,827 km (0.042 R)
• M32: 10,540,516 km (0.047 R)
• M33: 11,139,357 km (0.107 R)
• M34: 11,604,756 km (0.12 R)
• M35: 11,713,064 km (0.08 R)
• M36: 11,967,231 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.2

Radius: 12

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 10.41 AU - 15.91 AU

Year: 16626 Days

Day: 14.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 59,732,369 km

• M1: 161,566 km (0.082 R)
• M2: 839,244 km (0.094 R)
• M3: 1,331,571 km (0.117 R)
• M4: 1,841,101 km (0.052 R)
• M5: 2,584,902 km (0.057 R)
• M6: 2,693,210 km (0.083 R)
• M7: 2,951,716 km (0.073 R)
• M8: 3,218,449 km (0.113 R)
• M9: 3,374,629 km (0.082 R)
• M10: 4,192,331 km (0.081 R)
• M11: 4,277,452 km (0.068 R)
• M12: 4,406,256 km (0.097 R)
• M13: 4,667,753 km (0.053 R)
• M14: 4,934,336 km (0.095 R)
• M15: 6,886,888 km (0.1 R)
• M16: 6,987,717 km (0.107 R)
• M17: 7,088,994 km (0.112 R)
• M18: 7,812,001 km (0.058 R)
• M19: 8,396,480 km (0.057 R)
• M20: 8,612,499 km (0.113 R)
• M21: 8,775,860 km (0.108 R)
• M22: 9,439,177 km (0.089 R)
• M23: 10,990,507 km (0.098 R)
• M24: 11,405,491 km (0.116 R)
• M25: 11,825,712 km (0.119 R)
• M26: 12,557,993 km (0.095 R)
• M27: 12,681,411 km (0.114 R)
• M28: 13,304,786 km (0.12 R)
• M29: 13,493,878 km (0.1 R)
• M30: 14,581,604 km (0.083 R)
• M31: 17,525,391 km (0.067 R)
• M32: 18,499,721 km (0.106 R)
• M33: 19,849,842 km (0.077 R)
• M34: 19,993,755 km (0.093 R)
• M35: 20,282,779 km (0.102 R)
• M36: 21,452,634 km (0.068 R)
• M37: 21,971,290 km (0.114 R)
• M38: 22,870,074 km (0.119 R)
• M39: 23,780,826 km (0.08 R)
• M40: 24,010,458 km (0.082 R)
• M41: 25,794,712 km (0.05 R)
• M42: 26,742,564 km (0.108 R)
• M43: 27,140,794 km (0.119 R)
• M44: 28,266,518 km (0.119 R)
• M45: 28,509,764 km (0.119 R)
• M46: 30,397,240 km (0.086 R)
• M47: 31,649,973 km (0.089 R)
• M48: 34,119,385 km (0.074 R)
• M49: 37,003,931 km (0.097 R)
• M50: 37,447,788 km (0.072 R)
• M51: 37,982,750 km (0.062 R)
• M52: 38,430,496 km (0.105 R)
• M53: 39,784,207 km (0.099 R)
• M54: 40,238,985 km (0.055 R)
• M55: 43,938,091 km (0.119 R)
• M56: 44,219,934 km (0.119 R)
• M57: 45,353,138 km (0.078 R)
• M58: 46,495,916 km (0.105 R)
• M59: 47,263,054 km (0.116 R)
• M60: 48,615,418 km (0.101 R)
• M61: 49,589,301 km (0.067 R)
• M62: 49,784,825 km (0.074 R)
• M63: 50,078,635 km (0.116 R)
• M64: 50,864,922 km (0.072 R)
• M65: 51,754,431 km (0.078 R)
• M66: 52,350,279 km (0.083 R)
• M67: 52,848,440 km (0.052 R)
• M68: 55,160,624 km (0.084 R)
• M69: 55,870,915 km (0.102 R)
• M70: 56,176,244 km (0.112 R)
• M71: 56,278,121 km (0.058 R)
• M72: 58,949,041 km (0.09 R)
• M73: 59,883,280 km (0.108 R)
• M74: 60,091,520 km (0.108 R)
• M75: 60,926,874 km (0.072 R)
• M76: 62,398,169 km (0.115 R)
• M77: 62,609,252 km (0.109 R)
• M78: 65,054,280 km (0.04 R)
• M79: 65,804,663 km (0.094 R)
• M80: 67,747,341 km (0.119 R)
• M81: 68,398,989 km (0.109 R)
• M82: 69,161,938 km (0.069 R)
• M83: 69,489,857 km (0.074 R)
• M84: 71,799,199 km (0.064 R)
• M85: 73,018,870 km (0.117 R)
• M86: 74,133,674 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 905.3

Radius: 6.2

Gravity: 23.55 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 12.83 AU - 19.87 AU

Year: 23023 Days

Day: 15.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 59,732,369 km

• M1: 336,296 km (0.108 R)
• M2: 439,369 km (0.098 R)
• M3: 506,389 km (0.046 R)
• M4: 729,290 km (0.054 R)
• M5: 1,195,287 km (0.119 R)
• M6: 1,324,240 km (0.109 R)
• M7: 2,469,412 km (0.057 R)
• M8: 2,975,053 km (0.083 R)
• M9: 3,150,531 km (0.087 R)
• M10: 4,826,177 km (0.095 R)
• M11: 4,928,951 km (0.084 R)
• M12: 5,723,465 km (0.077 R)
• M13: 6,331,131 km (0.108 R)
• M14: 6,443,779 km (0.073 R)
• M15: 7,547,063 km (0.11 R)
• M16: 7,606,753 km (0.093 R)
• M17: 8,212,175 km (0.094 R)
• M18: 8,958,968 km (0.088 R)
• M19: 9,212,835 km (0.111 R)
• M20: 9,857,452 km (0.112 R)
• M21: 10,251,344 km (0.086 R)
• M22: 11,054,385 km (0.06 R)
• M23: 11,258,287 km (0.062 R)
• M24: 11,326,504 km (0.102 R)
• M25: 12,156,173 km (0.085 R)
• M26: 12,507,579 km (0.093 R)
• M27: 12,933,783 km (0.104 R)
• M28: 13,509,436 km (0.112 R)
• M29: 13,581,991 km (0.076 R)
• M30: 13,654,546 km (0.07 R)
• M31: 14,388,473 km (0.104 R)
• M32: 16,665,652 km (0.112 R)
• M33: 16,899,473 km (0.103 R)
• M34: 17,055,952 km (0.057 R)
• M35: 17,212,881 km (0.114 R)
• M36: 17,449,245 km (0.101 R)
• M37: 17,607,370 km (0.097 R)
• M38: 17,845,530 km (0.109 R)
• M39: 18,004,852 km (0.111 R)
• M40: 18,084,737 km (0.074 R)
• M41: 19,378,459 km (0.119 R)
• M42: 21,883,326 km (0.111 R)
• M43: 23,173,309 km (0.116 R)
• M44: 23,521,572 km (0.084 R)
• M45: 23,959,146 km (0.111 R)
• M46: 25,736,668 km (0.057 R)
• M47: 27,556,077 km (0.12 R)
• M48: 28,947,637 km (0.085 R)
• M49: 30,077,250 km (0.076 R)
• M50: 32,282,323 km (0.081 R)
• M51: 32,671,128 km (0.081 R)
• M52: 32,963,741 km (0.102 R)
• M53: 33,061,429 km (0.113 R)
• M54: 34,044,137 km (0.08 R)
• M55: 35,535,927 km (0.08 R)
• M56: 36,239,336 km (0.042 R)
• M57: 37,762,243 km (0.088 R)
• M58: 40,346,396 km (0.12 R)
• M59: 41,290,658 km (0.039 R)
• M60: 42,136,035 km (0.066 R)
• M61: 42,773,771 km (0.11 R)
• M62: 43,736,433 km (0.066 R)
• M63: 44,814,436 km (0.087 R)
• M64: 46,228,884 km (0.087 R)
• M65: 46,557,401 km (0.09 R)
• M66: 47,216,678 km (0.108 R)
• M67: 47,657,842 km (0.097 R)
• M68: 47,768,395 km (0.113 R)
• M69: 48,544,509 km (0.095 R)
• M70: 49,884,457 km (0.096 R)
• M71: 53,631,884 km (0.038 R)
• M72: 55,132,799 km (0.101 R)
• M73: 59,241,954 km (0.059 R)
• M74: 59,598,745 km (0.091 R)
• M75: 61,273,044 km (0.045 R)
• M76: 61,393,171 km (0.036 R)
• M77: 63,326,873 km (0.082 R)
• M78: 64,179,132 km (0.114 R)
• M79: 66,264,676 km (0.066 R)
• M80: 66,634,931 km (0.101 R)
• M81: 66,882,216 km (0.074 R)
• M82: 69,873,276 km (0.089 R)
• M83: 70,627,848 km (0.076 R)
• M84: 71,006,181 km (0.113 R)
• M85: 71,258,702 km (0.056 R)
• M86: 71,511,522 km (0.104 R)
• M87: 73,800,669 km (0.086 R)
• M88: 78,189,870 km (0.068 R)
• M89: 80,153,043 km (0.106 R)
• M90: 82,397,460 km (0.07 R)
• M91: 82,530,153 km (0.052 R)
• M92: 85,735,437 km (0.106 R)
• M93: 86,947,778 km (0.108 R)
• M94: 89,253,530 km (0.055 R)
• M95: 89,935,398 km (0.106 R)
• M96: 91,441,848 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.6

Radius: 3

Gravity: 14.84 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 15.64 AU - 24.66 AU

Year: 31500 Days

Day: 18.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 59,732,369 km

• M1: 273,315 km (0.078 R)
• M2: 379,081 km (0.055 R)
• M3: 569,519 km (0.064 R)
• M4: 665,112 km (0.115 R)
• M5: 828,323 km (0.083 R)
• M6: 914,641 km (0.1 R)
• M7: 1,142,928 km (0.112 R)
• M8: 1,263,354 km (0.104 R)
• M9: 1,312,721 km (0.08 R)
• M10: 1,413,401 km (0.066 R)
• M11: 1,622,239 km (0.118 R)
• M12: 1,840,652 km (0.058 R)
• M13: 1,925,025 km (0.107 R)
• M14: 2,304,854 km (0.051 R)
• M15: 2,395,810 km (0.081 R)
• M16: 3,031,302 km (0.085 R)
• M17: 3,715,413 km (0.046 R)
• M18: 4,332,803 km (0.063 R)
• M19: 4,748,835 km (0.097 R)
• M20: 5,256,869 km (0.039 R)
• M21: 5,296,662 km (0.084 R)
• M22: 6,408,324 km (0.098 R)
• M23: 6,707,969 km (0.101 R)
• M24: 6,924,736 km (0.11 R)
• M25: 6,968,418 km (0.092 R)
• M26: 7,724,187 km (0.091 R)
• M27: 7,951,426 km (0.051 R)
• M28: 10,590,931 km (0.076 R)
• M29: 10,641,345 km (0.038 R)
• M30: 11,250,957 km (0.08 R)
• M31: 11,715,757 km (0.045 R)
• M32: 11,767,668 km (0.109 R)
• M33: 11,819,877 km (0.117 R)
• M34: 11,871,937 km (0.088 R)
• M35: 12,134,033 km (0.118 R)
• M36: 13,039,100 km (0.092 R)
• M37: 13,092,955 km (0.053 R)
• M38: 13,636,145 km (0.109 R)
• M39: 13,800,553 km (0.111 R)
• M40: 14,913,113 km (0.111 R)
• M41: 15,480,088 km (0.075 R)
• M42: 15,708,973 km (0.108 R)
• M43: 15,881,310 km (0.105 R)
• M44: 15,938,905 km (0.06 R)
• M45: 16,576,790 km (0.03 R)
• M46: 16,752,269 km (0.056 R)
• M47: 17,757,866 km (0.036 R)
• M48: 19,333,430 km (0.098 R)
• M49: 19,518,034 km (0.079 R)
• M50: 20,262,433 km (0.083 R)
• M51: 21,715,029 km (0.107 R)
• M52: 22,940,085 km (0.027 R)
• M53: 23,791,148 km (0.078 R)
• M54: 24,452,819 km (0.109 R)
• M55: 25,658,877 km (0.1 R)
• M56: 26,952,899 km (0.069 R)
• M57: 27,090,379 km (0.058 R)
• M58: 29,109,202 km (0.057 R)
• M59: 30,457,977 km (0.076 R)
• M60: 31,464,771 km (0.095 R)
• M61: 31,681,987 km (0.074 R)
• M62: 33,215,963 km (0.085 R)
• M63: 34,029,028 km (0.057 R)
• M64: 34,326,428 km (0.113 R)
• M65: 34,923,473 km (0.1 R)
• M66: 35,298,515 km (0.097 R)
• M67: 35,599,506 km (0.084 R)
• M68: 35,976,792 km (0.104 R)
• M69: 36,203,881 km (0.086 R)
• M70: 36,355,574 km (0.119 R)
• M71: 36,964,287 km (0.087 R)
• M72: 38,810,325 km (0.11 R)
• M73: 40,057,672 km (0.101 R)
• M74: 40,371,678 km (0.109 R)
• M75: 40,765,121 km (0.085 R)
• M76: 40,843,959 km (0.077 R)
• M77: 41,555,895 km (0.057 R)
• M78: 41,953,227 km (0.051 R)
• M79: 43,233,037 km (0.059 R)
• M80: 44,039,369 km (0.078 R)
• M81: 44,282,316 km (0.032 R)
• M82: 44,688,175 km (0.072 R)
• M83: 45,176,612 km (0.105 R)
• M84: 45,258,293 km (0.107 R)
• M85: 45,994,913 km (0.101 R)
• M86: 46,323,579 km (0.068 R)
• M87: 46,735,422 km (0.118 R)
• M88: 49,400,358 km (0.087 R)
• M89: 52,199,783 km (0.119 R)
• M90: 52,285,353 km (0.118 R)
• M91: 54,181,058 km (0.093 R)
• M92: 55,224,353 km (0.074 R)
• M93: 55,573,664 km (0.072 R)
• M94: 55,923,723 km (0.111 R)
• M95: 59,195,877 km (0.093 R)

Kuiper Belt

Range: 31.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 12,453 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit