🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.52 AU - 0.52 AU

Year: 140 Days

Day: 18.6 Hours

Environment

Temp: 173 °C

Axial Tilt: 37 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 35,541,891 km

• M1: 462,557 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.47 AU - 0.67 AU

Year: 160 Days

Day: 26.8 Hours

Environment

Temp: 198 °C

Axial Tilt: 6.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.66 AU - 0.8 AU

Year: 233 Days

Day: 22.3 Hours

Environment

Temp: 97 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.78 AU - 0.78 AU

Year: 257 Days

Day: 32.4 Hours

Environment

Temp: 85 °C

Axial Tilt: 41.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 35,541,891 km

• M1: 304,581 km (0.085 R)
• M2: 457,171 km (0.096 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.43 AU - 2.59 AU

Year: 1482 Days

Day: 30.3 Hours

Environment

Temp: -86 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.96 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711

Radius: 8.3

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.89 AU - 5.93 AU

Year: 4691 Days

Day: 12.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 35,541,891 km

• M1: 104,120 km (0.068 R)
• M2: 198,516 km (0.062 R)
• M3: 254,915 km (0.096 R)
• M4: 363,523 km (0.1 R)
• M5: 469,588 km (0.089 R)
• M6: 564,882 km (0.101 R)
• M7: 632,350 km (0.114 R)
• M8: 739,313 km (0.092 R)
• M9: 985,252 km (0.117 R)
• M10: 1,054,366 km (0.104 R)
• M11: 1,316,910 km (0.12 R)
• M12: 1,487,601 km (0.107 R)
• M13: 1,884,933 km (0.114 R)
• M14: 1,989,352 km (0.111 R)
• M15: 2,095,717 km (0.107 R)
• M16: 2,314,279 km (0.108 R)
• M17: 2,597,917 km (0.1 R)
• M18: 2,912,970 km (0.111 R)
• M19: 3,177,758 km (0.081 R)
• M20: 3,386,896 km (0.105 R)
• M21: 3,752,812 km (0.085 R)
• M22: 4,900,677 km (0.042 R)
• M23: 5,764,305 km (0.032 R)
• M24: 6,045,400 km (0.079 R)
• M25: 6,097,011 km (0.034 R)
• M26: 6,383,341 km (0.109 R)
• M27: 6,514,987 km (0.097 R)
• M28: 6,807,900 km (0.117 R)
• M29: 7,077,774 km (0.099 R)
• M30: 7,544,819 km (0.092 R)
• M31: 7,880,517 km (0.064 R)
• M32: 8,479,656 km (0.111 R)
• M33: 8,537,550 km (0.081 R)
• M34: 8,653,638 km (0.114 R)
• M35: 9,842,942 km (0.059 R)
• M36: 10,925,132 km (0.094 R)
• M37: 11,051,094 km (0.03 R)
• M38: 11,368,541 km (0.104 R)
• M39: 11,947,185 km (0.113 R)
• M40: 12,240,247 km (0.091 R)
• M41: 12,634,438 km (0.076 R)
• M42: 13,334,556 km (0.049 R)
• M43: 13,876,399 km (0.114 R)
• M44: 14,047,240 km (0.083 R)
• M45: 14,322,051 km (0.109 R)
• M46: 14,494,687 km (0.117 R)
• M47: 14,842,054 km (0.112 R)
• M48: 15,086,796 km (0.08 R)
• M49: 15,615,774 km (0.118 R)
• M50: 15,722,287 km (0.118 R)
• M51: 15,936,063 km (0.115 R)
• M52: 16,222,692 km (0.102 R)
• M53: 16,474,765 km (0.058 R)
• M54: 16,655,778 km (0.108 R)
• M55: 17,275,712 km (0.115 R)
• M56: 17,422,617 km (0.057 R)
• M57: 18,201,124 km (0.111 R)
• M58: 18,463,220 km (0.062 R)
• M59: 18,538,318 km (0.052 R)
• M60: 18,613,416 km (0.091 R)
• M61: 18,688,813 km (0.095 R)
• M62: 19,218,689 km (0.052 R)
• M63: 19,753,501 km (0.081 R)
• M64: 19,830,395 km (0.097 R)
• M65: 20,331,996 km (0.118 R)
• M66: 20,448,383 km (0.12 R)
• M67: 20,564,920 km (0.044 R)
• M68: 20,681,756 km (0.095 R)
• M69: 20,759,846 km (0.115 R)
• M70: 21,387,260 km (0.069 R)
• M71: 21,466,247 km (0.101 R)
• M72: 21,782,647 km (0.119 R)
• M73: 22,021,106 km (0.103 R)
• M74: 22,983,170 km (0.105 R)
• M75: 23,672,965 km (0.091 R)
• M76: 24,122,956 km (0.067 R)
• M77: 24,205,085 km (0.101 R)
• M78: 24,328,503 km (0.039 R)
• M79: 25,406,356 km (0.068 R)
• M80: 25,531,719 km (0.086 R)
• M81: 25,909,005 km (0.115 R)
• M82: 26,330,422 km (0.108 R)
• M83: 26,499,617 km (0.096 R)
• M84: 27,694,156 km (0.098 R)
• M85: 27,909,278 km (0.09 R)
• M86: 28,645,000 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.2

Radius: 9.1

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.71 AU - 7.01 AU

Year: 5979 Days

Day: 8.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 35,541,891 km

• M1: 119,230 km (0.11 R)
• M2: 234,420 km (0.073 R)
• M3: 503,846 km (0.084 R)
• M4: 830,867 km (0.078 R)
• M5: 891,454 km (0.094 R)
• M6: 1,099,544 km (0.11 R)
• M7: 1,395,299 km (0.093 R)
• M8: 1,638,246 km (0.106 R)
• M9: 1,715,738 km (0.118 R)
• M10: 1,874,611 km (0.097 R)
• M11: 1,955,843 km (0.033 R)
• M12: 2,164,382 km (0.091 R)
• M13: 2,271,344 km (0.066 R)
• M14: 2,694,108 km (0.085 R)
• M15: 2,809,598 km (0.078 R)
• M16: 2,973,856 km (0.118 R)
• M17: 3,739,498 km (0.12 R)
• M18: 3,816,690 km (0.113 R)
• M19: 3,946,691 km (0.104 R)
• M20: 4,078,038 km (0.062 R)
• M21: 4,590,710 km (0.071 R)
• M22: 5,558,458 km (0.079 R)
• M23: 5,676,491 km (0.088 R)
• M24: 5,914,801 km (0.117 R)
• M25: 5,974,939 km (0.093 R)
• M26: 6,095,814 km (0.1 R)
• M27: 6,187,069 km (0.09 R)
• M28: 6,494,193 km (0.068 R)
• M29: 6,996,244 km (0.088 R)
• M30: 7,123,701 km (0.052 R)
• M31: 8,070,805 km (0.116 R)
• M32: 9,161,224 km (0.082 R)
• M33: 9,901,733 km (0.112 R)
• M34: 10,044,899 km (0.118 R)
• M35: 10,116,855 km (0.092 R)
• M36: 10,478,882 km (0.113 R)
• M37: 10,992,751 km (0.108 R)
• M38: 11,066,802 km (0.109 R)
• M39: 11,892,881 km (0.11 R)
• M40: 11,969,026 km (0.118 R)
• M41: 12,506,083 km (0.054 R)
• M42: 13,051,068 km (0.091 R)
• M43: 13,484,752 km (0.111 R)
• M44: 14,609,878 km (0.063 R)
• M45: 15,101,157 km (0.065 R)
• M46: 15,266,164 km (0.11 R)
• M47: 15,473,357 km (0.039 R)
• M48: 16,692,729 km (0.109 R)
• M49: 16,906,205 km (0.115 R)
• M50: 17,378,785 km (0.091 R)
• M51: 18,778,273 km (0.036 R)
• M52: 19,401,946 km (0.109 R)
• M53: 19,761,280 km (0.107 R)
• M54: 19,941,845 km (0.09 R)
• M55: 20,213,664 km (0.107 R)
• M56: 20,806,820 km (0.031 R)
• M57: 20,898,673 km (0.108 R)
• M58: 21,128,605 km (0.072 R)
• M59: 21,359,584 km (0.115 R)
• M60: 22,526,298 km (0.049 R)
• M61: 23,474,599 km (0.052 R)
• M62: 24,146,144 km (0.11 R)
• M63: 25,067,666 km (0.098 R)
• M64: 25,214,272 km (0.12 R)
• M65: 25,459,014 km (0.039 R)
• M66: 25,557,300 km (0.077 R)
• M67: 25,704,804 km (0.056 R)
• M68: 26,247,994 km (0.12 R)
• M69: 26,795,073 km (0.106 R)
• M70: 26,895,004 km (0.053 R)
• M71: 26,994,936 km (0.072 R)
• M72: 27,547,102 km (0.049 R)
• M73: 27,698,345 km (0.07 R)
• M74: 28,103,007 km (0.098 R)
• M75: 29,020,641 km (0.096 R)
• M76: 29,689,493 km (0.068 R)
• M77: 30,155,640 km (0.086 R)
• M78: 30,624,031 km (0.113 R)
• M79: 30,833,019 km (0.114 R)
• M80: 31,252,491 km (0.079 R)
• M81: 32,149,929 km (0.08 R)
• M82: 32,895,375 km (0.11 R)
• M83: 33,109,300 km (0.069 R)
• M84: 33,592,651 km (0.075 R)
• M85: 34,729,295 km (0.088 R)
• M86: 34,892,656 km (0.084 R)
• M87: 35,603,695 km (0.108 R)
• M88: 36,485,425 km (0.087 R)
• M89: 37,040,283 km (0.119 R)
• M90: 37,262,885 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.8

Radius: 14.1

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.46 AU - 7.92 AU

Year: 6451 Days

Day: 7 Hours

Environment

Temp: -155 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 35,541,891 km

• M1: 284,535 km (0.091 R)
• M2: 473,328 km (0.116 R)
• M3: 797,955 km (0.1 R)
• M4: 912,697 km (0.112 R)
• M5: 1,033,721 km (0.091 R)
• M6: 1,128,566 km (0.079 R)
• M7: 1,243,158 km (0.101 R)
• M8: 1,485,058 km (0.082 R)
• M9: 1,575,415 km (0.059 R)
• M10: 1,705,117 km (0.108 R)
• M11: 1,936,245 km (0.115 R)
• M12: 2,516,087 km (0.118 R)
• M13: 2,916,859 km (0.079 R)
• M14: 3,172,073 km (0.101 R)
• M15: 3,483,087 km (0.115 R)
• M16: 3,854,539 km (0.106 R)
• M17: 3,955,816 km (0.087 R)
• M18: 4,212,975 km (0.095 R)
• M19: 4,343,574 km (0.111 R)
• M20: 4,635,888 km (0.104 R)
• M21: 4,770,975 km (0.089 R)
• M22: 5,072,714 km (0.08 R)
• M23: 5,184,015 km (0.091 R)
• M24: 6,552,387 km (0.048 R)
• M25: 6,673,860 km (0.103 R)
• M26: 7,073,885 km (0.116 R)
• M27: 7,672,576 km (0.083 R)
• M28: 7,800,781 km (0.112 R)
• M29: 7,961,898 km (0.049 R)
• M30: 8,287,722 km (0.073 R)
• M31: 8,651,245 km (0.054 R)
• M32: 9,053,663 km (0.085 R)
• M33: 9,189,199 km (0.098 R)
• M34: 10,297,869 km (0.11 R)
• M35: 10,439,538 km (0.046 R)
• M36: 10,832,232 km (0.116 R)
• M37: 11,302,568 km (0.103 R)
• M38: 11,521,878 km (0.091 R)
• M39: 11,816,586 km (0.085 R)
• M40: 12,791,665 km (0.098 R)
• M41: 12,905,808 km (0.032 R)
• M42: 13,211,886 km (0.119 R)
• M43: 14,858,360 km (0.065 R)
• M44: 15,018,579 km (0.104 R)
• M45: 15,219,639 km (0.11 R)
• M46: 15,664,991 km (0.038 R)
• M47: 15,950,723 km (0.064 R)
• M48: 16,568,712 km (0.096 R)
• M49: 17,320,741 km (0.105 R)
• M50: 17,913,447 km (0.114 R)
• M51: 18,728,457 km (0.092 R)
• M52: 19,162,290 km (0.03 R)
• M53: 19,424,087 km (0.09 R)
• M54: 19,995,700 km (0.082 R)
• M55: 20,350,098 km (0.064 R)
• M56: 20,483,539 km (0.078 R)
• M57: 20,617,279 km (0.118 R)
• M58: 20,930,537 km (0.081 R)
• M59: 21,200,262 km (0.061 R)
• M60: 22,062,096 km (0.077 R)
• M61: 22,244,904 km (0.074 R)
• M62: 23,259,926 km (0.073 R)
• M63: 23,446,025 km (0.061 R)
• M64: 25,622,375 km (0.087 R)
• M65: 25,718,567 km (0.094 R)
• M66: 25,814,758 km (0.07 R)
• M67: 26,540,158 km (0.09 R)
• M68: 26,783,404 km (0.107 R)
• M69: 27,125,236 km (0.081 R)
• M70: 27,665,433 km (0.094 R)
• M71: 27,862,753 km (0.119 R)
• M72: 28,060,521 km (0.065 R)
• M73: 28,507,221 km (0.079 R)
• M74: 29,709,838 km (0.04 R)
• M75: 29,962,509 km (0.109 R)
• M76: 30,877,898 km (0.041 R)
• M77: 31,544,805 km (0.082 R)
• M78: 31,802,563 km (0.075 R)
• M79: 32,009,307 km (0.076 R)
• M80: 33,942,560 km (0.06 R)
• M81: 34,048,027 km (0.064 R)
• M82: 34,790,182 km (0.078 R)
• M83: 35,752,096 km (0.084 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.9

Radius: 9.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 10.27 AU - 10.75 AU

Year: 12702 Days

Day: 10.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 35,541,891 km

• M1: 281,394 km (0.096 R)
• M2: 354,397 km (0.034 R)
• M3: 459,116 km (0.106 R)
• M4: 575,802 km (0.04 R)
• M5: 666,010 km (0.106 R)
• M6: 790,774 km (0.108 R)
• M7: 1,087,128 km (0.101 R)
• M8: 1,260,063 km (0.111 R)
• M9: 1,442,123 km (0.12 R)
• M10: 2,268,951 km (0.101 R)
• M11: 2,659,850 km (0.097 R)
• M12: 2,800,173 km (0.052 R)
• M13: 3,153,523 km (0.1 R)
• M14: 3,402,604 km (0.049 R)
• M15: 3,555,343 km (0.104 R)
• M16: 4,170,190 km (0.079 R)
• M17: 4,242,596 km (0.067 R)
• M18: 4,352,101 km (0.087 R)
• M19: 4,932,242 km (0.072 R)
• M20: 5,008,836 km (0.082 R)
• M21: 5,319,551 km (0.113 R)
• M22: 5,398,090 km (0.101 R)
• M23: 5,576,560 km (0.111 R)
• M24: 5,898,494 km (0.054 R)
• M25: 6,539,521 km (0.102 R)
• M26: 6,814,931 km (0.112 R)
• M27: 6,943,436 km (0.067 R)
• M28: 7,202,689 km (0.116 R)
• M29: 7,333,587 km (0.116 R)
• M30: 8,067,215 km (0.093 R)
• M31: 8,203,199 km (0.057 R)
• M32: 9,034,664 km (0.08 R)
• M33: 9,388,912 km (0.096 R)
• M34: 9,555,863 km (0.058 R)
• M35: 9,772,032 km (0.071 R)
• M36: 9,989,697 km (0.095 R)
• M37: 10,209,007 km (0.102 R)
• M38: 10,429,964 km (0.086 R)
• M39: 11,152,671 km (0.08 R)
• M40: 12,227,681 km (0.103 R)
• M41: 12,593,298 km (0.054 R)
• M42: 12,724,795 km (0.117 R)
• M43: 12,856,740 km (0.072 R)
• M44: 13,282,047 km (0.104 R)
• M45: 13,955,836 km (0.07 R)
• M46: 14,119,197 km (0.109 R)
• M47: 14,201,027 km (0.101 R)
• M48: 14,283,156 km (0.113 R)
• M49: 14,889,925 km (0.043 R)
• M50: 15,112,676 km (0.073 R)
• M51: 15,364,449 km (0.099 R)
• M52: 15,730,814 km (0.106 R)
• M53: 16,846,964 km (0.081 R)
• M54: 17,137,184 km (0.066 R)
• M55: 17,752,331 km (0.118 R)
• M56: 18,523,807 km (0.1 R)
• M57: 19,823,513 km (0.099 R)
• M58: 20,438,061 km (0.107 R)
• M59: 20,747,729 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 67.3

Radius: 7.5

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 12.86 AU - 15.94 AU

Year: 20370 Days

Day: 23.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 35,541,891 km

• M1: 96,491 km (0.12 R)
• M2: 186,100 km (0.115 R)
• M3: 749,785 km (0.083 R)
• M4: 971,788 km (0.119 R)
• M5: 1,147,715 km (0.043 R)
• M6: 2,111,574 km (0.045 R)
• M7: 2,469,113 km (0.105 R)
• M8: 2,755,443 km (0.107 R)
• M9: 3,052,245 km (0.046 R)
• M10: 3,627,150 km (0.085 R)
• M11: 4,054,551 km (0.071 R)
• M12: 4,418,373 km (0.106 R)
• M13: 5,486,652 km (0.09 R)
• M14: 5,744,259 km (0.042 R)
• M15: 6,390,223 km (0.11 R)
• M16: 7,846,109 km (0.09 R)
• M17: 8,006,777 km (0.056 R)
• M18: 8,429,840 km (0.114 R)
• M19: 8,693,731 km (0.063 R)
• M20: 8,993,974 km (0.08 R)
• M21: 9,501,858 km (0.065 R)
• M22: 10,193,449 km (0.081 R)
• M23: 10,333,772 km (0.115 R)
• M24: 11,515,446 km (0.07 R)
• M25: 11,918,762 km (0.052 R)
• M26: 12,066,564 km (0.118 R)
• M27: 12,513,563 km (0.076 R)
• M28: 13,385,718 km (0.047 R)
• M29: 13,770,933 km (0.104 R)
• M30: 13,887,320 km (0.119 R)
• M31: 14,395,055 km (0.092 R)
• M32: 14,473,594 km (0.082 R)
• M33: 15,028,153 km (0.061 R)
• M34: 15,873,082 km (0.083 R)
• M35: 16,280,886 km (0.092 R)
• M36: 16,444,845 km (0.076 R)
• M37: 17,482,755 km (0.109 R)
• M38: 18,584,394 km (0.043 R)
• M39: 18,798,768 km (0.075 R)
• M40: 19,100,357 km (0.099 R)
• M41: 19,403,592 km (0.031 R)
• M42: 19,970,867 km (0.079 R)
• M43: 20,102,513 km (0.071 R)
• M44: 20,410,834 km (0.069 R)
• M45: 20,720,801 km (0.064 R)
• M46: 20,943,253 km (0.085 R)
• M47: 21,211,033 km (0.092 R)
• M48: 21,345,522 km (0.029 R)
• M49: 22,521,810 km (0.067 R)
• M50: 23,858,467 km (0.073 R)
• M51: 24,278,538 km (0.09 R)
• M52: 24,748,275 km (0.119 R)
• M53: 25,126,010 km (0.114 R)
• M54: 25,363,122 km (0.072 R)
• M55: 25,410,694 km (0.097 R)
• M56: 26,463,564 km (0.097 R)
• M57: 27,043,705 km (0.086 R)
• M58: 27,335,421 km (0.045 R)
• M59: 27,971,062 km (0.082 R)
• M60: 28,069,348 km (0.058 R)
• M61: 28,611,490 km (0.063 R)
• M62: 29,506,385 km (0.037 R)
• M63: 30,561,798 km (0.08 R)
• M64: 30,916,345 km (0.101 R)
• M65: 30,967,208 km (0.115 R)
• M66: 33,540,591 km (0.079 R)
• M67: 34,011,076 km (0.1 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 155 - 10,670 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit