🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.63 AU - 0.83 AU

Year: 276 Days

Day: 21 Hours

Environment

Temp: -27 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.43 AU - 1.75 AU

Year: 888 Days

Day: 32.6 Hours

Environment

Temp: -101 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.61 AU - 2.11 AU

Year: 1124 Days

Day: 15 Hours

Environment

Temp: -114 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.92 AU - 2.94 AU

Year: 1678 Days

Day: 20.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.69 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 14.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.79 AU - 3.09 AU

Year: 2233 Days

Day: 9.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 76,820,332 km

• M1: 202,556 km (0.105 R)
• M2: 384,317 km (0.097 R)
• M3: 474,225 km (0.109 R)
• M4: 566,228 km (0.109 R)
• M5: 674,836 km (0.088 R)
• M6: 829,670 km (0.044 R)
• M7: 927,058 km (0.079 R)
• M8: 1,039,256 km (0.089 R)
• M9: 1,189,303 km (0.043 R)
• M10: 1,335,759 km (0.115 R)
• M11: 1,429,108 km (0.096 R)
• M12: 1,635,254 km (0.091 R)
• M13: 1,943,576 km (0.05 R)
• M14: 2,077,765 km (0.12 R)
• M15: 2,201,333 km (0.119 R)
• M16: 2,341,506 km (0.069 R)
• M17: 2,660,897 km (0.049 R)
• M18: 3,374,180 km (0.061 R)
• M19: 3,537,092 km (0.087 R)
• M20: 3,636,126 km (0.108 R)
• M21: 3,803,227 km (0.083 R)
• M22: 4,041,536 km (0.042 R)
• M23: 4,461,607 km (0.119 R)
• M24: 4,568,869 km (0.116 R)
• M25: 4,969,791 km (0.085 R)
• M26: 5,287,387 km (0.104 R)
• M27: 5,650,312 km (0.109 R)
• M28: 5,747,101 km (0.08 R)
• M29: 5,922,879 km (0.066 R)
• M30: 6,521,869 km (0.089 R)
• M31: 7,056,831 km (0.068 R)
• M32: 7,266,417 km (0.097 R)
• M33: 7,691,724 km (0.083 R)
• M34: 7,864,061 km (0.101 R)
• M35: 8,059,585 km (0.117 R)
• M36: 8,322,878 km (0.079 R)
• M37: 8,633,592 km (0.074 R)
• M38: 8,857,989 km (0.042 R)
• M39: 9,129,659 km (0.042 R)
• M40: 9,381,282 km (0.074 R)
• M41: 10,267,949 km (0.112 R)
• M42: 10,625,338 km (0.105 R)
• M43: 10,817,572 km (0.112 R)
• M44: 10,986,767 km (0.12 R)
• M45: 11,352,384 km (0.072 R)
• M46: 11,746,874 km (0.053 R)
• M47: 12,447,889 km (0.069 R)
• M48: 12,803,633 km (0.091 R)
• M49: 12,931,539 km (0.032 R)
• M50: 13,059,745 km (0.06 R)
• M51: 13,265,890 km (0.119 R)
• M52: 13,812,072 km (0.065 R)
• M53: 14,445,470 km (0.07 R)
• M54: 14,765,759 km (0.053 R)
• M55: 14,899,798 km (0.104 R)
• M56: 15,685,786 km (0.031 R)
• M57: 16,624,512 km (0.106 R)
• M58: 17,269,877 km (0.104 R)
• M59: 17,524,643 km (0.111 R)
• M60: 18,498,375 km (0.113 R)
• M61: 18,729,953 km (0.061 R)
• M62: 18,962,577 km (0.114 R)
• M63: 19,108,585 km (0.108 R)
• M64: 19,313,384 km (0.073 R)
• M65: 19,784,468 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.7

Radius: 12.9

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.65 AU - 5.65 AU

Year: 4441 Days

Day: 5.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 76,820,332 km

• M1: 165,455 km (0.093 R)
• M2: 259,253 km (0.097 R)
• M3: 384,766 km (0.087 R)
• M4: 519,703 km (0.079 R)
• M5: 685,757 km (0.057 R)
• M6: 795,113 km (0.086 R)
• M7: 884,871 km (0.093 R)
• M8: 978,370 km (0.114 R)
• M9: 1,118,394 km (0.095 R)
• M10: 1,235,678 km (0.051 R)
• M11: 1,419,684 km (0.114 R)
• M12: 1,531,583 km (0.081 R)
• M13: 1,696,589 km (0.094 R)
• M14: 1,833,172 km (0.051 R)
• M15: 1,973,495 km (0.07 R)
• M16: 2,135,809 km (0.1 R)
• M17: 2,227,961 km (0.089 R)
• M18: 2,512,646 km (0.107 R)
• M19: 2,749,010 km (0.094 R)
• M20: 3,159,507 km (0.119 R)
• M21: 3,545,769 km (0.064 R)
• M22: 3,655,723 km (0.08 R)
• M23: 4,015,656 km (0.11 R)
• M24: 4,130,397 km (0.064 R)
• M25: 4,576,947 km (0.109 R)
• M26: 4,842,633 km (0.054 R)
• M27: 5,188,204 km (0.082 R)
• M28: 5,414,545 km (0.106 R)
• M29: 5,670,058 km (0.094 R)
• M30: 6,113,467 km (0.069 R)
• M31: 7,538,835 km (0.094 R)
• M32: 7,824,417 km (0.118 R)
• M33: 8,026,375 km (0.111 R)
• M34: 8,200,955 km (0.09 R)
• M35: 8,762,246 km (0.111 R)
• M36: 9,092,858 km (0.046 R)
• M37: 9,427,658 km (0.116 R)
• M38: 9,642,780 km (0.109 R)
• M39: 10,456,143 km (0.109 R)
• M40: 11,421,947 km (0.082 R)
• M41: 11,552,995 km (0.11 R)
• M42: 11,651,430 km (0.111 R)
• M43: 12,081,823 km (0.056 R)
• M44: 12,483,643 km (0.111 R)
• M45: 13,197,375 km (0.032 R)
• M46: 13,403,820 km (0.067 R)
• M47: 14,557,967 km (0.079 R)
• M48: 14,664,481 km (0.073 R)
• M49: 15,707,627 km (0.083 R)
• M50: 16,256,501 km (0.081 R)
• M51: 16,367,054 km (0.039 R)
• M52: 16,700,209 km (0.085 R)
• M53: 16,886,159 km (0.118 R)
• M54: 17,185,355 km (0.116 R)
• M55: 17,298,002 km (0.064 R)
• M56: 17,788,832 km (0.064 R)
• M57: 18,977,836 km (0.073 R)
• M58: 19,172,014 km (0.053 R)
• M59: 19,327,895 km (0.082 R)
• M60: 20,034,296 km (0.067 R)
• M61: 20,390,788 km (0.108 R)
• M62: 20,989,479 km (0.054 R)
• M63: 21,594,004 km (0.081 R)
• M64: 21,959,471 km (0.098 R)
• M65: 22,041,002 km (0.069 R)
• M66: 22,122,533 km (0.096 R)
• M67: 22,204,214 km (0.079 R)
• M68: 22,326,884 km (0.045 R)
• M69: 22,778,969 km (0.068 R)
• M70: 23,358,511 km (0.088 R)
• M71: 24,068,801 km (0.061 R)
• M72: 24,405,546 km (0.102 R)
• M73: 26,806,143 km (0.075 R)
• M74: 27,024,107 km (0.091 R)
• M75: 27,286,502 km (0.064 R)
• M76: 27,637,608 km (0.082 R)
• M77: 27,769,703 km (0.095 R)
• M78: 28,833,793 km (0.076 R)
• M79: 29,415,729 km (0.109 R)
• M80: 29,820,989 km (0.072 R)
• M81: 30,273,373 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.1

Radius: 8.5

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 5.01 AU - 5.39 AU

Year: 5252 Days

Day: 13 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 76,820,332 km

• M1: 207,343 km (0.098 R)
• M2: 401,969 km (0.072 R)
• M3: 622,477 km (0.112 R)
• M4: 905,666 km (0.091 R)
• M5: 1,008,738 km (0.09 R)
• M6: 1,227,151 km (0.085 R)
• M7: 1,400,984 km (0.104 R)
• M8: 1,506,151 km (0.083 R)
• M9: 1,645,427 km (0.116 R)
• M10: 1,708,707 km (0.05 R)
• M11: 1,837,810 km (0.091 R)
• M12: 2,192,058 km (0.12 R)
• M13: 2,421,990 km (0.074 R)
• M14: 2,829,195 km (0.025 R)
• M15: 3,358,023 km (0.073 R)
• M16: 3,959,856 km (0.116 R)
• M17: 4,218,660 km (0.118 R)
• M18: 4,328,016 km (0.106 R)
• M19: 4,460,709 km (0.11 R)
• M20: 4,572,309 km (0.091 R)
• M21: 4,729,985 km (0.11 R)
• M22: 5,859,749 km (0.113 R)
• M23: 5,982,120 km (0.073 R)
• M24: 6,105,239 km (0.118 R)
• M25: 6,354,170 km (0.101 R)
• M26: 7,120,859 km (0.064 R)
• M27: 7,303,966 km (0.096 R)
• M28: 7,435,762 km (0.115 R)
• M29: 7,594,934 km (0.12 R)
• M30: 8,051,956 km (0.086 R)
• M31: 8,740,405 km (0.073 R)
• M32: 8,796,205 km (0.083 R)
• M33: 10,172,954 km (0.104 R)
• M34: 10,379,399 km (0.084 R)
• M35: 10,587,041 km (0.065 R)
• M36: 10,646,731 km (0.079 R)
• M37: 11,127,688 km (0.068 R)
• M38: 11,431,820 km (0.072 R)
• M39: 11,523,674 km (0.114 R)
• M40: 11,707,978 km (0.116 R)
• M41: 11,924,147 km (0.061 R)
• M42: 12,204,194 km (0.031 R)
• M43: 12,993,473 km (0.084 R)
• M44: 13,345,925 km (0.109 R)
• M45: 13,410,402 km (0.12 R)
• M46: 13,474,879 km (0.096 R)
• M47: 14,093,167 km (0.119 R)
• M48: 14,323,248 km (0.098 R)
• M49: 14,587,737 km (0.099 R)
• M50: 14,787,151 km (0.096 R)
• M51: 14,954,102 km (0.089 R)
• M52: 15,323,459 km (0.1 R)
• M53: 15,900,309 km (0.082 R)
• M54: 16,139,815 km (0.04 R)
• M55: 17,250,130 km (0.105 R)
• M56: 17,320,441 km (0.084 R)
• M57: 18,456,787 km (0.038 R)
• M58: 18,997,733 km (0.11 R)
• M59: 19,288,401 km (0.114 R)
• M60: 19,507,413 km (0.068 R)
• M61: 20,317,186 km (0.108 R)
• M62: 20,800,986 km (0.107 R)
• M63: 21,363,773 km (0.074 R)
• M64: 21,439,170 km (0.098 R)
• M65: 22,007,792 km (0.116 R)
• M66: 22,619,647 km (0.069 R)
• M67: 23,314,828 km (0.119 R)
• M68: 23,470,111 km (0.064 R)
• M69: 25,282,040 km (0.116 R)
• M70: 25,481,753 km (0.096 R)
• M71: 25,762,100 km (0.059 R)
• M72: 26,528,340 km (0.04 R)
• M73: 26,609,422 km (0.091 R)
• M74: 26,690,654 km (0.071 R)
• M75: 26,853,267 km (0.094 R)
• M76: 27,016,179 km (0.057 R)
• M77: 27,097,710 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 10.1

Gravity: 9.29 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.02 AU - 6.64 AU

Year: 5450 Days

Day: 8.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 76,820,332 km

• M1: 128,804 km (0.066 R)
• M2: 300,991 km (0.03 R)
• M3: 522,695 km (0.089 R)
• M4: 826,079 km (0.085 R)
• M5: 914,193 km (0.096 R)
• M6: 1,100,592 km (0.083 R)
• M7: 1,333,964 km (0.075 R)
• M8: 1,528,741 km (0.07 R)
• M9: 1,695,243 km (0.09 R)
• M10: 1,771,089 km (0.117 R)
• M11: 1,946,268 km (0.109 R)
• M12: 2,209,561 km (0.12 R)
• M13: 2,462,830 km (0.106 R)
• M14: 2,527,606 km (0.107 R)
• M15: 3,067,056 km (0.091 R)
• M16: 3,740,545 km (0.048 R)
• M17: 4,197,417 km (0.068 R)
• M18: 4,538,500 km (0.111 R)
• M19: 4,725,946 km (0.037 R)
• M20: 5,303,394 km (0.051 R)
• M21: 5,387,767 km (0.118 R)
• M22: 5,586,284 km (0.116 R)
• M23: 5,990,647 km (0.084 R)
• M24: 6,107,931 km (0.112 R)
• M25: 6,285,355 km (0.104 R)
• M26: 6,434,504 km (0.09 R)
• M27: 6,615,068 km (0.067 R)
• M28: 7,135,669 km (0.083 R)
• M29: 7,291,400 km (0.116 R)
• M30: 7,606,005 km (0.085 R)
• M31: 7,797,041 km (0.1 R)
• M32: 8,510,922 km (0.075 R)
• M33: 8,609,956 km (0.119 R)
• M34: 8,942,512 km (0.05 R)
• M35: 9,620,639 km (0.087 R)
• M36: 9,931,204 km (0.085 R)
• M37: 10,000,618 km (0.066 R)
• M38: 10,280,066 km (0.076 R)
• M39: 10,739,781 km (0.12 R)
• M40: 10,846,743 km (0.103 R)
• M41: 10,990,058 km (0.074 R)
• M42: 11,170,024 km (0.113 R)
• M43: 11,789,210 km (0.108 R)
• M44: 11,936,564 km (0.1 R)
• M45: 12,307,566 km (0.107 R)
• M46: 12,795,555 km (0.067 R)
• M47: 13,481,760 km (0.116 R)
• M48: 14,023,604 km (0.119 R)
• M49: 15,854,083 km (0.061 R)
• M50: 16,921,614 km (0.111 R)
• M51: 17,590,166 km (0.04 R)
• M52: 18,651,863 km (0.105 R)
• M53: 18,995,938 km (0.069 R)
• M54: 19,342,257 km (0.106 R)
• M55: 19,690,521 km (0.096 R)
• M56: 20,128,842 km (0.117 R)
• M57: 20,260,937 km (0.05 R)
• M58: 20,703,448 km (0.093 R)
• M59: 22,825,793 km (0.111 R)
• M60: 23,193,953 km (0.089 R)
• M61: 24,122,806 km (0.069 R)
• M62: 24,309,953 km (0.12 R)
• M63: 24,874,536 km (0.061 R)
• M64: 25,825,230 km (0.091 R)
• M65: 26,160,778 km (0.116 R)
• M66: 26,353,161 km (0.073 R)
• M67: 27,175,949 km (0.085 R)
• M68: 28,056,333 km (0.083 R)
• M69: 28,698,108 km (0.105 R)
• M70: 29,344,670 km (0.088 R)
• M71: 29,996,019 km (0.106 R)
• M72: 30,298,206 km (0.052 R)
• M73: 30,854,860 km (0.053 R)
• M74: 31,619,455 km (0.045 R)
• M75: 32,235,648 km (0.076 R)
• M76: 32,648,688 km (0.087 R)
• M77: 33,584,273 km (0.119 R)
• M78: 33,793,411 km (0.064 R)
• M79: 34,528,685 km (0.092 R)
• M80: 34,634,151 km (0.06 R)
• M81: 35,641,543 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.4

Radius: 7.4

Gravity: 13.67 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 11.1 AU - 13.76 AU

Year: 19411 Days

Day: 21.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 76,820,332 km

• M1: 98,884 km (0.091 R)
• M2: 180,565 km (0.049 R)
• M3: 292,913 km (0.097 R)
• M4: 470,934 km (0.117 R)
• M5: 594,502 km (0.054 R)
• M6: 848,968 km (0.105 R)
• M7: 1,163,722 km (0.065 R)
• M8: 1,276,519 km (0.101 R)
• M9: 1,482,664 km (0.103 R)
• M10: 2,094,969 km (0.031 R)
• M11: 2,777,584 km (0.046 R)
• M12: 3,202,142 km (0.093 R)
• M13: 3,281,579 km (0.107 R)
• M14: 3,771,811 km (0.074 R)
• M15: 3,855,736 km (0.113 R)
• M16: 3,982,744 km (0.081 R)
• M17: 4,683,909 km (0.06 R)
• M18: 5,095,004 km (0.086 R)
• M19: 6,648,279 km (0.103 R)
• M20: 7,161,699 km (0.074 R)
• M21: 7,741,241 km (0.114 R)
• M22: 8,172,083 km (0.099 R)
• M23: 8,500,301 km (0.119 R)
• M24: 9,057,104 km (0.114 R)
• M25: 9,625,576 km (0.074 R)
• M26: 10,677,847 km (0.102 R)
• M27: 11,399,358 km (0.114 R)
• M28: 13,463,808 km (0.12 R)
• M29: 13,657,089 km (0.076 R)
• M30: 13,786,491 km (0.12 R)
• M31: 14,242,615 km (0.088 R)
• M32: 15,169,523 km (0.08 R)
• M33: 15,236,543 km (0.078 R)
• M34: 15,572,839 km (0.089 R)
• M35: 16,942,258 km (0.082 R)
• M36: 17,151,097 km (0.109 R)
• M37: 17,641,479 km (0.095 R)
• M38: 21,350,907 km (0.11 R)
• M39: 21,576,351 km (0.111 R)
• M40: 22,181,475 km (0.078 R)
• M41: 22,945,770 km (0.046 R)
• M42: 23,099,706 km (0.083 R)
• M43: 24,108,445 km (0.034 R)
• M44: 25,767,934 km (0.1 R)
• M45: 26,894,705 km (0.112 R)
• M46: 28,284,469 km (0.085 R)
• M47: 28,697,509 km (0.111 R)
• M48: 28,946,440 km (0.096 R)
• M49: 30,623,731 km (0.108 R)
• M50: 31,988,213 km (0.114 R)
• M51: 32,850,944 km (0.118 R)
• M52: 32,937,711 km (0.104 R)
• M53: 33,372,293 km (0.112 R)
• M54: 34,071,813 km (0.083 R)
• M55: 35,841,256 km (0.077 R)
• M56: 36,378,013 km (0.11 R)
• M57: 36,827,256 km (0.094 R)
• M58: 40,115,866 km (0.069 R)
• M59: 40,579,918 km (0.084 R)
• M60: 41,232,764 km (0.115 R)
• M61: 43,878,402 km (0.102 R)
• M62: 44,548,301 km (0.088 R)
• M63: 44,644,193 km (0.073 R)
• M64: 45,318,132 km (0.101 R)
• M65: 45,898,272 km (0.03 R)
• M66: 45,995,212 km (0.099 R)
• M67: 46,675,732 km (0.064 R)
• M68: 46,773,270 km (0.093 R)
• M69: 49,431,026 km (0.089 R)
• M70: 49,828,956 km (0.09 R)
• M71: 51,028,881 km (0.094 R)
• M72: 51,129,411 km (0.092 R)
• M73: 51,834,316 km (0.076 R)
• M74: 52,137,401 km (0.082 R)
• M75: 59,268,582 km (0.081 R)
• M76: 59,903,027 km (0.117 R)
• M77: 61,071,835 km (0.059 R)
• M78: 61,712,712 km (0.062 R)
• M79: 62,141,011 km (0.116 R)
• M80: 62,355,684 km (0.108 R)
• M81: 62,893,189 km (0.112 R)
• M82: 63,216,470 km (0.093 R)
• M83: 63,432,190 km (0.096 R)
• M84: 64,514,979 km (0.101 R)
• M85: 65,276,582 km (0.103 R)
• M86: 65,385,489 km (0.034 R)
• M87: 70,466,282 km (0.032 R)
• M88: 70,801,979 km (0.087 R)
• M89: 71,026,077 km (0.118 R)
• M90: 71,250,474 km (0.056 R)
• M91: 71,475,020 km (0.091 R)
• M92: 73,847,493 km (0.116 R)
• M93: 74,986,232 km (0.039 R)
• M94: 75,557,845 km (0.113 R)
• M95: 75,901,472 km (0.075 R)
• M96: 76,705,261 km (0.036 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 15,798 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit