🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.64 AU - 0.88 AU

Year: 279 Days

Day: 28.1 Hours

Environment

Temp: 3 °C

Axial Tilt: 49 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.23 AU - 1.33 AU

Year: 611 Days

Day: 12.7 Hours

Environment

Temp: -70 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.41 AU - 1.97 AU

Year: 927 Days

Day: 16.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,416,064 km

• M1: 268,977 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.91 AU - 2.33 AU

Year: 1302 Days

Day: 44.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,416,064 km

• M1: 734,226 km (0.029 R)

Asteroid Belt

Center: 2.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.1

Radius: 12.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.61 AU - 3.55 AU

Year: 2280 Days

Day: 7.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 103,416,064 km

• M1: 184,753 km (0.103 R)
• M2: 267,930 km (0.029 R)
• M3: 350,807 km (0.073 R)
• M4: 442,062 km (0.069 R)
• M5: 569,968 km (0.06 R)
• M6: 915,988 km (0.065 R)
• M7: 1,062,743 km (0.09 R)
• M8: 1,271,432 km (0.108 R)
• M9: 1,362,537 km (0.117 R)
• M10: 1,446,462 km (0.089 R)
• M11: 1,719,478 km (0.102 R)
• M12: 1,988,305 km (0.11 R)
• M13: 2,084,646 km (0.096 R)
• M14: 2,226,615 km (0.097 R)
• M15: 2,371,874 km (0.12 R)
• M16: 2,755,144 km (0.052 R)
• M17: 2,838,919 km (0.109 R)
• M18: 3,108,345 km (0.094 R)
• M19: 3,322,270 km (0.102 R)
• M20: 3,437,460 km (0.115 R)
• M21: 3,619,520 km (0.096 R)
• M22: 3,711,673 km (0.069 R)
• M23: 3,831,501 km (0.105 R)
• M24: 3,965,989 km (0.085 R)
• M25: 4,577,096 km (0.107 R)
• M26: 4,734,473 km (0.093 R)
• M27: 5,128,664 km (0.108 R)
• M28: 5,262,404 km (0.12 R)
• M29: 5,472,889 km (0.07 R)
• M30: 5,809,185 km (0.079 R)
• M31: 5,933,201 km (0.067 R)
• M32: 6,120,797 km (0.08 R)
• M33: 6,550,292 km (0.052 R)
• M34: 6,793,239 km (0.097 R)
• M35: 6,973,206 km (0.08 R)
• M36: 7,088,695 km (0.053 R)
• M37: 7,692,173 km (0.071 R)
• M38: 7,948,584 km (0.081 R)
• M39: 8,190,483 km (0.047 R)
• M40: 8,399,771 km (0.112 R)
• M41: 8,487,435 km (0.095 R)
• M42: 8,628,506 km (0.107 R)
• M43: 9,002,351 km (0.071 R)
• M44: 9,092,110 km (0.11 R)
• M45: 9,308,877 km (0.072 R)
• M46: 9,545,691 km (0.109 R)
• M47: 9,637,244 km (0.09 R)
• M48: 9,950,802 km (0.049 R)
• M49: 10,174,301 km (0.111 R)
• M50: 10,343,047 km (0.114 R)
• M51: 10,474,843 km (0.083 R)
• M52: 10,607,237 km (0.031 R)
• M53: 10,721,231 km (0.046 R)
• M54: 10,988,562 km (0.071 R)
• M55: 11,219,691 km (0.042 R)
• M56: 11,686,436 km (0.1 R)
• M57: 11,823,917 km (0.056 R)
• M58: 12,120,120 km (0.108 R)
• M59: 12,599,133 km (0.075 R)
• M60: 12,861,228 km (0.048 R)
• M61: 13,145,464 km (0.096 R)
• M62: 13,370,310 km (0.062 R)
• M63: 13,555,213 km (0.084 R)
• M64: 13,782,302 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.7

Radius: 14.2

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.31 AU - 3.69 AU

Year: 2762 Days

Day: 12.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 103,416,064 km

• M1: 182,958 km (0.103 R)
• M2: 275,110 km (0.097 R)
• M3: 378,483 km (0.098 R)
• M4: 547,528 km (0.118 R)
• M5: 1,102,536 km (0.109 R)
• M6: 1,204,861 km (0.025 R)
• M7: 1,343,389 km (0.104 R)
• M8: 1,453,643 km (0.095 R)
• M9: 1,660,536 km (0.102 R)
• M10: 2,014,934 km (0.05 R)
• M11: 2,129,974 km (0.102 R)
• M12: 2,340,010 km (0.078 R)
• M13: 2,626,490 km (0.091 R)
• M14: 2,766,962 km (0.114 R)
• M15: 2,924,489 km (0.072 R)
• M16: 3,055,686 km (0.073 R)
• M17: 3,159,058 km (0.09 R)
• M18: 3,263,777 km (0.039 R)
• M19: 3,980,500 km (0.075 R)
• M20: 4,507,833 km (0.091 R)
• M21: 4,677,177 km (0.11 R)
• M22: 4,987,593 km (0.103 R)
• M23: 5,340,345 km (0.107 R)
• M24: 5,429,804 km (0.034 R)
• M25: 5,866,480 km (0.073 R)
• M26: 5,958,932 km (0.025 R)
• M27: 6,126,482 km (0.068 R)
• M28: 6,333,525 km (0.073 R)
• M29: 6,831,985 km (0.08 R)
• M30: 7,403,150 km (0.111 R)
• M31: 7,503,231 km (0.105 R)
• M32: 8,865,918 km (0.106 R)
• M33: 9,079,095 km (0.095 R)
• M34: 9,229,291 km (0.112 R)
• M35: 9,445,310 km (0.118 R)
• M36: 9,816,463 km (0.063 R)
• M37: 9,926,567 km (0.102 R)
• M38: 10,393,462 km (0.098 R)
• M39: 10,483,220 km (0.095 R)
• M40: 10,708,664 km (0.084 R)
• M41: 10,913,015 km (0.06 R)
• M42: 11,141,601 km (0.061 R)
• M43: 11,256,492 km (0.057 R)
• M44: 11,557,184 km (0.036 R)
• M45: 11,860,418 km (0.115 R)
• M46: 12,284,678 km (0.108 R)
• M47: 12,379,673 km (0.09 R)
• M48: 12,618,132 km (0.039 R)
• M49: 12,714,024 km (0.106 R)
• M50: 12,810,066 km (0.118 R)
• M51: 13,123,922 km (0.053 R)
• M52: 13,440,471 km (0.113 R)
• M53: 13,685,662 km (0.079 R)
• M54: 13,858,148 km (0.08 R)
• M55: 15,111,330 km (0.096 R)
• M56: 15,366,244 km (0.12 R)
• M57: 16,010,114 km (0.11 R)
• M58: 16,191,875 km (0.115 R)
• M59: 16,426,744 km (0.083 R)
• M60: 17,403,917 km (0.099 R)
• M61: 17,886,221 km (0.11 R)
• M62: 18,074,864 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.8

Radius: 11.1

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.84 AU - 7.22 AU

Year: 7038 Days

Day: 8.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 103,416,064 km

• M1: 147,204 km (0.029 R)
• M2: 217,366 km (0.106 R)
• M3: 294,259 km (0.09 R)
• M4: 395,088 km (0.114 R)
• M5: 474,225 km (0.089 R)
• M6: 569,968 km (0.104 R)
• M7: 1,024,745 km (0.068 R)
• M8: 1,101,788 km (0.103 R)
• M9: 1,303,596 km (0.118 R)
• M10: 1,445,115 km (0.078 R)
• M11: 1,884,634 km (0.1 R)
• M12: 2,279,273 km (0.11 R)
• M13: 2,364,843 km (0.06 R)
• M14: 2,845,501 km (0.083 R)
• M15: 2,975,053 km (0.118 R)
• M16: 3,278,886 km (0.08 R)
• M17: 3,513,456 km (0.104 R)
• M18: 4,165,702 km (0.093 R)
• M19: 4,549,122 km (0.102 R)
• M20: 4,877,489 km (0.056 R)
• M21: 5,168,307 km (0.056 R)
• M22: 5,418,884 km (0.069 R)
• M23: 5,650,012 km (0.098 R)
• M24: 5,743,511 km (0.084 R)
• M25: 5,860,945 km (0.099 R)
• M26: 6,314,975 km (0.077 R)
• M27: 6,730,707 km (0.069 R)
• M28: 7,205,980 km (0.098 R)
• M29: 7,409,283 km (0.086 R)
• M30: 8,241,795 km (0.038 R)
• M31: 8,321,382 km (0.102 R)
• M32: 8,427,895 km (0.051 R)
• M33: 8,534,858 km (0.118 R)
• M34: 8,723,201 km (0.103 R)
• M35: 9,241,259 km (0.031 R)
• M36: 10,364,290 km (0.117 R)
• M37: 10,971,209 km (0.068 R)
• M38: 11,264,121 km (0.083 R)
• M39: 11,382,154 km (0.108 R)
• M40: 11,500,486 km (0.078 R)
• M41: 11,678,807 km (0.076 R)
• M42: 11,828,105 km (0.084 R)
• M43: 11,918,014 km (0.112 R)
• M44: 12,038,141 km (0.119 R)
• M45: 12,128,647 km (0.102 R)
• M46: 12,219,304 km (0.032 R)
• M47: 12,401,215 km (0.053 R)
• M48: 12,492,469 km (0.106 R)
• M49: 13,763,004 km (0.062 R)
• M50: 13,952,395 km (0.085 R)
• M51: 14,142,684 km (0.1 R)
• M52: 14,301,856 km (0.091 R)
• M53: 14,750,799 km (0.062 R)
• M54: 14,847,589 km (0.116 R)
• M55: 15,236,992 km (0.084 R)
• M56: 15,432,965 km (0.047 R)
• M57: 15,761,332 km (0.086 R)
• M58: 17,301,891 km (0.083 R)
• M59: 17,506,242 km (0.058 R)
• M60: 17,952,044 km (0.114 R)
• M61: 18,262,908 km (0.056 R)
• M62: 18,610,274 km (0.095 R)
• M63: 18,714,993 km (0.097 R)
• M64: 19,030,196 km (0.093 R)
• M65: 19,736,746 km (0.119 R)
• M66: 19,914,768 km (0.098 R)
• M67: 20,524,080 km (0.083 R)
• M68: 20,740,548 km (0.09 R)
• M69: 21,030,319 km (0.085 R)
• M70: 21,285,084 km (0.061 R)
• M71: 22,797,369 km (0.102 R)
• M72: 24,001,782 km (0.043 R)
• M73: 24,344,211 km (0.081 R)
• M74: 24,496,951 km (0.113 R)
• M75: 25,265,285 km (0.105 R)
• M76: 25,652,444 km (0.105 R)
• M77: 25,730,086 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 738.8

Radius: 4.6

Gravity: 34.91 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 9.11 AU - 14.73 AU

Year: 17357 Days

Day: 24.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 103,416,064 km

• M1: 482,453 km (0.112 R)
• M2: 711,936 km (0.111 R)
• M3: 947,403 km (0.062 R)
• M4: 1,022,501 km (0.074 R)
• M5: 1,126,023 km (0.097 R)
• M6: 1,399,189 km (0.099 R)
• M7: 2,470,758 km (0.101 R)
• M8: 2,540,022 km (0.088 R)
• M9: 2,932,567 km (0.077 R)
• M10: 3,154,720 km (0.092 R)
• M11: 3,305,814 km (0.078 R)
• M12: 3,654,377 km (0.032 R)
• M13: 4,811,666 km (0.112 R)
• M14: 4,855,049 km (0.104 R)
• M15: 5,029,480 km (0.118 R)
• M16: 5,384,476 km (0.093 R)
• M17: 7,377,269 km (0.076 R)
• M18: 7,527,466 km (0.051 R)
• M19: 8,138,423 km (0.118 R)
• M20: 8,190,184 km (0.038 R)
• M21: 8,818,196 km (0.113 R)
• M22: 9,516,070 km (0.086 R)
• M23: 9,844,138 km (0.101 R)
• M24: 10,567,444 km (0.091 R)
• M25: 10,623,842 km (0.046 R)
• M26: 10,736,938 km (0.115 R)
• M27: 11,539,082 km (0.072 R)
• M28: 11,655,320 km (0.104 R)
• M29: 12,182,802 km (0.079 R)
• M30: 12,419,765 km (0.1 R)
• M31: 13,627,319 km (0.105 R)
• M32: 14,307,391 km (0.109 R)
• M33: 15,764,474 km (0.113 R)
• M34: 15,828,801 km (0.088 R)
• M35: 15,957,904 km (0.102 R)
• M36: 16,152,232 km (0.076 R)
• M37: 16,739,852 km (0.087 R)
• M38: 17,201,810 km (0.078 R)
• M39: 17,467,496 km (0.119 R)
• M40: 17,801,698 km (0.065 R)
• M41: 17,868,867 km (0.034 R)
• M42: 19,365,893 km (0.089 R)
• M43: 21,900,829 km (0.095 R)
• M44: 22,405,722 km (0.117 R)
• M45: 22,623,387 km (0.102 R)
• M46: 23,206,968 km (0.088 R)
• M47: 24,240,091 km (0.109 R)
• M48: 25,212,776 km (0.091 R)
• M49: 25,590,361 km (0.092 R)
• M50: 26,427,511 km (0.118 R)
• M51: 26,887,824 km (0.038 R)
• M52: 26,964,867 km (0.107 R)
• M53: 27,816,527 km (0.056 R)
• M54: 27,894,318 km (0.112 R)
• M55: 28,284,769 km (0.074 R)
• M56: 28,913,229 km (0.09 R)
• M57: 29,229,180 km (0.075 R)
• M58: 31,229,603 km (0.118 R)
• M59: 31,310,535 km (0.065 R)
• M60: 31,553,781 km (0.109 R)
• M61: 32,368,940 km (0.091 R)
• M62: 33,026,124 km (0.078 R)
• M63: 33,273,708 km (0.047 R)
• M64: 34,437,280 km (0.053 R)
• M65: 34,520,756 km (0.115 R)
• M66: 36,718,498 km (0.057 R)
• M67: 38,266,088 km (0.103 R)
• M68: 39,397,198 km (0.049 R)
• M69: 39,572,078 km (0.11 R)
• M70: 40,362,702 km (0.108 R)
• M71: 40,450,815 km (0.114 R)
• M72: 41,069,851 km (0.094 R)
• M73: 41,513,858 km (0.102 R)
• M74: 43,035,418 km (0.039 R)
• M75: 44,029,496 km (0.067 R)
• M76: 46,317,146 km (0.118 R)
• M77: 47,057,207 km (0.037 R)
• M78: 47,521,858 km (0.096 R)
• M79: 48,081,354 km (0.085 R)
• M80: 48,268,351 km (0.118 R)
• M81: 49,395,272 km (0.116 R)
• M82: 49,584,065 km (0.088 R)
• M83: 50,246,185 km (0.118 R)
• M84: 51,962,521 km (0.048 R)
• M85: 53,020,926 km (0.089 R)
• M86: 55,550,327 km (0.092 R)
• M87: 55,648,463 km (0.087 R)
• M88: 56,435,198 km (0.109 R)
• M89: 56,731,103 km (0.072 R)
• M90: 58,717,164 km (0.091 R)
• M91: 60,524,157 km (0.096 R)
• M92: 60,624,986 km (0.108 R)
• M93: 61,434,310 km (0.073 R)
• M94: 64,398,143 km (0.11 R)
• M95: 64,604,289 km (0.092 R)
• M96: 65,638,160 km (0.072 R)
• M97: 66,157,115 km (0.06 R)
• M98: 70,676,168 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.6

Radius: 3.7

Gravity: 58.12 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 14.74 AU - 19.14 AU

Year: 29406 Days

Day: 15.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 103,416,064 km

• M1: 49,218 km (0.1 R)
• M2: 82,578 km (0.085 R)
• M3: 134,339 km (0.046 R)
• M4: 199,264 km (0.031 R)
• M5: 235,916 km (0.114 R)
• M6: 275,110 km (0.047 R)
• M7: 360,531 km (0.093 R)
• M8: 904,170 km (0.119 R)
• M9: 2,001,620 km (0.11 R)
• M10: 2,297,823 km (0.112 R)
• M11: 2,385,039 km (0.073 R)
• M12: 2,473,302 km (0.072 R)
• M13: 2,562,612 km (0.114 R)
• M14: 3,072,740 km (0.086 R)
• M15: 3,364,007 km (0.04 R)
• M16: 3,563,122 km (0.079 R)
• M17: 4,182,906 km (0.117 R)
• M18: 4,342,976 km (0.095 R)
• M19: 5,403,026 km (0.075 R)
• M20: 7,037,233 km (0.106 R)
• M21: 7,164,092 km (0.094 R)
• M22: 7,355,578 km (0.089 R)
• M23: 7,484,082 km (0.053 R)
• M24: 8,006,029 km (0.102 R)
• M25: 8,072,002 km (0.043 R)
• M26: 8,810,567 km (0.105 R)
• M27: 9,015,665 km (0.114 R)
• M28: 10,279,318 km (0.087 R)
• M29: 11,004,868 km (0.093 R)
• M30: 13,044,934 km (0.1 R)
• M31: 13,750,288 km (0.066 R)
• M32: 14,227,356 km (0.102 R)
• M33: 14,871,824 km (0.076 R)
• M34: 14,953,205 km (0.11 R)
• M35: 15,279,627 km (0.051 R)
• M36: 15,773,599 km (0.116 R)
• M37: 16,189,332 km (0.075 R)
• M38: 16,524,431 km (0.05 R)
• M39: 18,321,102 km (0.082 R)
• M40: 18,933,705 km (0.069 R)
• M41: 19,999,291 km (0.101 R)
• M42: 20,358,774 km (0.034 R)
• M43: 24,835,939 km (0.068 R)
• M44: 27,681,440 km (0.063 R)
• M45: 31,354,367 km (0.118 R)
• M46: 33,141,164 km (0.051 R)
• M47: 33,779,648 km (0.111 R)
• M48: 33,993,274 km (0.117 R)
• M49: 37,252,712 km (0.04 R)
• M50: 40,270,101 km (0.114 R)
• M51: 40,951,220 km (0.094 R)
• M52: 43,480,920 km (0.103 R)
• M53: 43,829,783 km (0.094 R)
• M54: 45,588,006 km (0.112 R)
• M55: 45,824,221 km (0.111 R)
• M56: 47,967,959 km (0.069 R)
• M57: 48,328,490 km (0.045 R)
• M58: 48,810,494 km (0.077 R)
• M59: 49,173,119 km (0.096 R)
• M60: 50,022,536 km (0.07 R)
• M61: 51,735,880 km (0.087 R)
• M62: 51,858,999 km (0.113 R)
• M63: 53,095,575 km (0.118 R)
• M64: 53,468,373 km (0.097 R)
• M65: 53,842,218 km (0.117 R)
• M66: 54,341,875 km (0.085 R)
• M67: 55,094,203 km (0.107 R)
• M68: 55,345,677 km (0.101 R)
• M69: 60,197,136 km (0.118 R)
• M70: 62,280,137 km (0.104 R)
• M71: 62,542,232 km (0.107 R)
• M72: 64,784,255 km (0.106 R)
• M73: 65,182,784 km (0.108 R)
• M74: 65,448,769 km (0.077 R)
• M75: 65,848,495 km (0.054 R)
• M76: 66,784,379 km (0.046 R)
• M77: 67,994,177 km (0.092 R)
• M78: 69,890,330 km (0.034 R)
• M79: 72,629,018 km (0.106 R)
• M80: 73,457,491 km (0.06 R)
• M81: 74,706,185 km (0.111 R)
• M82: 74,845,311 km (0.093 R)
• M83: 76,101,634 km (0.04 R)
• M84: 77,083,594 km (0.085 R)
• M85: 79,201,900 km (0.09 R)
• M86: 87,277,193 km (0.101 R)
• M87: 88,157,876 km (0.062 R)
• M88: 88,451,985 km (0.112 R)
• M89: 96,366,161 km (0.076 R)
• M90: 96,517,704 km (0.034 R)
• M91: 98,799,520 km (0.092 R)
• M92: 100,330,505 km (0.111 R)
• M93: 100,791,416 km (0.086 R)
• M94: 101,098,989 km (0.119 R)
• M95: 101,715,183 km (0.08 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 19,081 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit