🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.56 AU - 0.7 AU

Year: 188 Days

Day: 15.1 Hours

Environment

Temp: 142 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.66 AU - 0.82 AU

Year: 240 Days

Day: 33.8 Hours

Environment

Temp: 97 °C

Axial Tilt: 7.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,463,559 km

• M1: 203,752 km (0.045 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.74 AU - 1.78 AU

Year: 880 Days

Day: 35.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,463,559 km

• M1: 130,300 km (0.099 R)

Asteroid Belt

Center: 5.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 13.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 8.04 AU - 11.46 AU

Year: 11469 Days

Day: 6.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 157.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 91,463,559 km

• M1: 172,636 km (0.061 R)
• M2: 274,961 km (0.092 R)
• M3: 724,203 km (0.114 R)
• M4: 887,863 km (0.041 R)
• M5: 1,211,294 km (0.118 R)
• M6: 1,993,691 km (0.073 R)
• M7: 2,230,953 km (0.063 R)
• M8: 2,477,939 km (0.102 R)
• M9: 2,705,029 km (0.112 R)
• M10: 2,850,587 km (0.06 R)
• M11: 3,028,609 km (0.092 R)
• M12: 3,210,670 km (0.082 R)
• M13: 3,302,971 km (0.102 R)
• M14: 4,208,039 km (0.118 R)
• M15: 5,814,121 km (0.066 R)
• M16: 6,003,363 km (0.106 R)
• M17: 6,194,698 km (0.109 R)
• M18: 6,465,919 km (0.058 R)
• M19: 6,741,179 km (0.115 R)
• M20: 7,100,663 km (0.094 R)
• M21: 7,303,218 km (0.119 R)
• M22: 7,548,858 km (0.102 R)
• M23: 7,672,576 km (0.107 R)
• M24: 8,216,962 km (0.054 R)
• M25: 8,387,055 km (0.12 R)
• M26: 8,472,475 km (0.066 R)
• M27: 9,476,277 km (0.101 R)
• M28: 9,610,018 km (0.119 R)
• M29: 9,834,265 km (0.083 R)
• M30: 10,333,772 km (0.115 R)
• M31: 10,656,006 km (0.071 R)
• M32: 11,785,919 km (0.103 R)
• M33: 12,609,305 km (0.07 R)
• M34: 12,953,680 km (0.079 R)
• M35: 13,052,713 km (0.111 R)
• M36: 15,766,568 km (0.106 R)
• M37: 15,978,249 km (0.059 R)
• M38: 17,432,191 km (0.099 R)
• M39: 19,379,207 km (0.108 R)
• M40: 19,719,991 km (0.028 R)
• M41: 19,833,985 km (0.092 R)
• M42: 20,464,989 km (0.103 R)
• M43: 20,753,862 km (0.075 R)
• M44: 21,570,218 km (0.093 R)
• M45: 21,687,802 km (0.09 R)
• M46: 22,219,173 km (0.036 R)
• M47: 23,354,920 km (0.097 R)
• M48: 23,778,133 km (0.067 R)
• M49: 24,816,492 km (0.093 R)
• M50: 25,186,597 km (0.037 R)
• M51: 25,310,314 km (0.119 R)
• M52: 25,620,580 km (0.114 R)
• M53: 26,245,002 km (0.076 R)
• M54: 27,000,770 km (0.069 R)
• M55: 27,699,841 km (0.058 R)
• M56: 28,019,681 km (0.104 R)
• M57: 28,212,064 km (0.1 R)
• M58: 28,405,045 km (0.095 R)
• M59: 28,792,055 km (0.084 R)
• M60: 29,441,160 km (0.108 R)
• M61: 29,636,834 km (0.087 R)
• M62: 32,353,980 km (0.115 R)
• M63: 32,488,618 km (0.105 R)
• M64: 35,357,457 km (0.084 R)
• M65: 35,843,500 km (0.096 R)
• M66: 37,667,996 km (0.076 R)
• M67: 39,163,526 km (0.114 R)
• M68: 40,316,177 km (0.076 R)
• M69: 40,751,208 km (0.101 R)
• M70: 41,115,030 km (0.071 R)
• M71: 42,139,177 km (0.086 R)
• M72: 42,507,038 km (0.074 R)
• M73: 44,437,000 km (0.07 R)
• M74: 44,886,392 km (0.077 R)
• M75: 45,563,472 km (0.116 R)
• M76: 45,865,361 km (0.101 R)
• M77: 46,319,540 km (0.114 R)
• M78: 46,927,506 km (0.119 R)
• M79: 49,773,456 km (0.11 R)
• M80: 50,474,022 km (0.116 R)
• M81: 51,021,251 km (0.12 R)
• M82: 52,674,757 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35

Radius: 10.3

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.51 AU - 11.35 AU

Year: 11788 Days

Day: 10.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 91,463,559 km

• M1: 137,331 km (0.063 R)
• M2: 310,116 km (0.075 R)
• M3: 439,967 km (0.053 R)
• M4: 634,145 km (0.118 R)
• M5: 808,726 km (0.109 R)
• M6: 999,613 km (0.108 R)
• M7: 1,413,999 km (0.039 R)
• M8: 1,571,825 km (0.116 R)
• M9: 1,800,111 km (0.113 R)
• M10: 2,772,797 km (0.12 R)
• M11: 2,848,792 km (0.026 R)
• M12: 3,417,264 km (0.113 R)
• M13: 3,548,312 km (0.108 R)
• M14: 3,968,832 km (0.048 R)
• M15: 4,369,903 km (0.072 R)
• M16: 4,441,112 km (0.05 R)
• M17: 4,530,422 km (0.058 R)
• M18: 4,638,581 km (0.112 R)
• M19: 4,747,488 km (0.069 R)
• M20: 5,023,796 km (0.039 R)
• M21: 6,021,613 km (0.065 R)
• M22: 6,361,051 km (0.107 R)
• M23: 6,583,952 km (0.118 R)
• M24: 6,912,918 km (0.027 R)
• M25: 8,793,812 km (0.114 R)
• M26: 9,065,033 km (0.066 R)
• M27: 9,477,175 km (0.066 R)
• M28: 9,778,614 km (0.036 R)
• M29: 10,367,282 km (0.056 R)
• M30: 10,510,148 km (0.118 R)
• M31: 10,918,849 km (0.091 R)
• M32: 11,480,141 km (0.061 R)
• M33: 11,727,127 km (0.081 R)
• M34: 11,851,143 km (0.117 R)
• M35: 11,925,942 km (0.086 R)
• M36: 12,201,202 km (0.12 R)
• M37: 12,554,553 km (0.11 R)
• M38: 14,318,311 km (0.1 R)
• M39: 15,527,661 km (0.066 R)
• M40: 15,718,697 km (0.091 R)
• M41: 16,741,647 km (0.043 R)
• M42: 17,359,935 km (0.094 R)
• M43: 17,586,726 km (0.117 R)
• M44: 18,157,890 km (0.069 R)
• M45: 19,406,434 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.8

Radius: 6.2

Gravity: 14.12 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 11.31 AU - 14.45 AU

Year: 17414 Days

Day: 16.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 91,463,559 km

• M1: 172,187 km (0.073 R)
• M2: 377,585 km (0.084 R)
• M3: 949,797 km (0.094 R)
• M4: 1,394,252 km (0.102 R)
• M5: 1,808,489 km (0.104 R)
• M6: 2,290,194 km (0.078 R)
• M7: 2,577,871 km (0.048 R)
• M8: 3,048,206 km (0.105 R)
• M9: 3,222,637 km (0.088 R)
• M10: 3,364,456 km (0.106 R)
• M11: 3,508,369 km (0.069 R)
• M12: 4,374,990 km (0.11 R)
• M13: 4,771,574 km (0.048 R)
• M14: 4,974,129 km (0.059 R)
• M15: 5,138,388 km (0.086 R)
• M16: 5,221,115 km (0.117 R)
• M17: 5,942,177 km (0.089 R)
• M18: 6,248,105 km (0.115 R)
• M19: 6,784,563 km (0.081 R)
• M20: 7,012,400 km (0.112 R)
• M21: 7,335,681 km (0.094 R)
• M22: 7,428,881 km (0.119 R)
• M23: 7,663,749 km (0.118 R)
• M24: 7,853,439 km (0.092 R)
• M25: 9,731,042 km (0.117 R)
• M26: 9,884,979 km (0.064 R)
• M27: 10,299,365 km (0.107 R)
• M28: 11,414,018 km (0.074 R)
• M29: 11,522,178 km (0.094 R)
• M30: 11,576,332 km (0.094 R)
• M31: 13,412,047 km (0.069 R)
• M32: 14,043,650 km (0.114 R)
• M33: 15,395,715 km (0.053 R)
• M34: 16,178,112 km (0.081 R)
• M35: 16,299,586 km (0.082 R)
• M36: 16,788,771 km (0.109 R)
• M37: 17,158,726 km (0.103 R)
• M38: 17,469,142 km (0.081 R)
• M39: 18,221,619 km (0.064 R)
• M40: 18,665,326 km (0.099 R)
• M41: 18,856,662 km (0.067 R)
• M42: 19,048,596 km (0.065 R)
• M43: 20,476,059 km (0.105 R)
• M44: 20,541,732 km (0.083 R)
• M45: 21,535,511 km (0.069 R)
• M46: 21,669,252 km (0.076 R)
• M47: 22,816,817 km (0.111 R)
• M48: 23,021,317 km (0.04 R)
• M49: 23,432,262 km (0.055 R)
• M50: 24,609,747 km (0.038 R)
• M51: 24,819,484 km (0.052 R)
• M52: 24,959,657 km (0.119 R)
• M53: 25,948,349 km (0.108 R)
• M54: 26,949,757 km (0.113 R)
• M55: 27,527,654 km (0.077 R)
• M56: 28,182,593 km (0.117 R)
• M57: 28,255,747 km (0.06 R)
• M58: 28,842,769 km (0.072 R)
• M59: 28,990,123 km (0.107 R)
• M60: 31,230,949 km (0.109 R)
• M61: 31,609,731 km (0.051 R)
• M62: 32,219,043 km (0.092 R)
• M63: 32,909,138 km (0.087 R)
• M64: 33,836,944 km (0.113 R)
• M65: 34,616,498 km (0.101 R)
• M66: 35,955,549 km (0.116 R)
• M67: 36,830,846 km (0.114 R)
• M68: 36,910,731 km (0.11 R)
• M69: 37,552,357 km (0.096 R)
• M70: 37,632,691 km (0.11 R)
• M71: 37,713,174 km (0.107 R)
• M72: 42,731,136 km (0.083 R)
• M73: 43,404,625 km (0.091 R)
• M74: 43,573,521 km (0.114 R)
• M75: 43,742,717 km (0.113 R)
• M76: 44,081,705 km (0.097 R)
• M77: 44,506,563 km (0.106 R)
• M78: 46,478,413 km (0.111 R)
• M79: 51,665,569 km (0.082 R)
• M80: 52,113,465 km (0.068 R)
• M81: 53,193,861 km (0.113 R)
• M82: 54,008,870 km (0.103 R)
• M83: 54,372,393 km (0.108 R)
• M84: 55,284,940 km (0.058 R)
• M85: 55,651,455 km (0.117 R)
• M86: 56,110,571 km (0.111 R)
• M87: 56,478,731 km (0.098 R)
• M88: 56,755,487 km (0.088 R)
• M89: 60,205,065 km (0.115 R)
• M90: 60,770,844 km (0.043 R)
• M91: 61,907,638 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.1

Radius: 3.9

Gravity: 45.96 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 10.95 AU - 15.09 AU

Year: 17699 Days

Day: 18.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 91,463,559 km

• M1: 550,670 km (0.056 R)
• M2: 613,052 km (0.106 R)
• M3: 958,623 km (0.119 R)
• M4: 1,299,706 km (0.054 R)
• M5: 1,327,382 km (0.055 R)
• M6: 1,526,945 km (0.103 R)
• M7: 2,658,055 km (0.066 R)
• M8: 2,872,429 km (0.106 R)
• M9: 3,092,487 km (0.066 R)
• M10: 3,317,931 km (0.051 R)
• M11: 3,394,226 km (0.056 R)
• M12: 3,864,263 km (0.07 R)
• M13: 3,944,597 km (0.056 R)
• M14: 4,106,910 km (0.093 R)
• M15: 4,692,137 km (0.104 R)
• M16: 4,820,941 km (0.086 R)
• M17: 4,950,942 km (0.105 R)
• M18: 5,347,675 km (0.111 R)
• M19: 5,708,954 km (0.049 R)
• M20: 5,800,508 km (0.094 R)
• M21: 6,598,014 km (0.092 R)
• M22: 6,694,056 km (0.108 R)
• M23: 7,629,791 km (0.088 R)
• M24: 8,448,989 km (0.076 R)
• M25: 9,565,737 km (0.087 R)
• M26: 9,838,454 km (0.06 R)
• M27: 9,893,356 km (0.104 R)
• M28: 10,280,066 km (0.069 R)
• M29: 10,391,517 km (0.063 R)
• M30: 11,643,202 km (0.105 R)
• M31: 12,168,889 km (0.09 R)
• M32: 12,523,586 km (0.079 R)
• M33: 12,702,355 km (0.117 R)
• M34: 13,122,426 km (0.078 R)
• M35: 13,182,714 km (0.088 R)
• M36: 13,546,985 km (0.071 R)
• M37: 14,161,533 km (0.085 R)
• M38: 14,472,098 km (0.082 R)
• M39: 15,608,892 km (0.094 R)
• M40: 15,672,771 km (0.049 R)
• M41: 15,736,948 km (0.091 R)
• M42: 17,499,660 km (0.075 R)
• M43: 18,573,324 km (0.106 R)
• M44: 20,223,538 km (0.053 R)
• M45: 21,848,320 km (0.12 R)
• M46: 22,207,056 km (0.072 R)
• M47: 22,712,697 km (0.107 R)
• M48: 22,857,807 km (0.101 R)
• M49: 23,221,928 km (0.069 R)
• M50: 24,697,711 km (0.062 R)
• M51: 25,975,725 km (0.118 R)
• M52: 26,051,572 km (0.088 R)
• M53: 28,439,154 km (0.095 R)
• M54: 28,673,873 km (0.072 R)
• M55: 28,830,651 km (0.082 R)
• M56: 30,175,386 km (0.093 R)
• M57: 30,654,848 km (0.112 R)
• M58: 32,434,314 km (0.051 R)
• M59: 32,761,485 km (0.028 R)
• M60: 32,925,444 km (0.116 R)
• M61: 33,007,573 km (0.055 R)
• M62: 34,163,965 km (0.103 R)
• M63: 34,330,168 km (0.088 R)
• M64: 35,585,893 km (0.026 R)
• M65: 36,176,954 km (0.099 R)
• M66: 36,686,185 km (0.105 R)
• M67: 38,920,280 km (0.116 R)
• M68: 39,093,813 km (0.077 R)
• M69: 40,756,444 km (0.109 R)
• M70: 40,932,820 km (0.092 R)
• M71: 42,085,322 km (0.058 R)
• M72: 42,263,493 km (0.096 R)
• M73: 42,352,803 km (0.057 R)
• M74: 42,620,733 km (0.083 R)
• M75: 42,889,410 km (0.119 R)
• M76: 43,428,262 km (0.111 R)
• M77: 44,150,221 km (0.109 R)
• M78: 45,149,385 km (0.109 R)
• M79: 48,191,458 km (0.041 R)
• M80: 49,220,093 km (0.095 R)
• M81: 51,966,261 km (0.093 R)
• M82: 52,828,693 km (0.068 R)
• M83: 53,502,631 km (0.107 R)
• M84: 53,695,762 km (0.065 R)
• M85: 55,346,275 km (0.091 R)
• M86: 55,737,175 km (0.06 R)
• M87: 55,835,012 km (0.081 R)
• M88: 57,309,448 km (0.062 R)
• M89: 57,507,067 km (0.081 R)
• M90: 59,495,073 km (0.057 R)
• M91: 61,000,925 km (0.097 R)
• M92: 62,417,617 km (0.092 R)
• M93: 62,722,498 km (0.043 R)
• M94: 63,845,080 km (0.092 R)
• M95: 64,562,851 km (0.118 R)
• M96: 65,592,832 km (0.093 R)
• M97: 70,611,990 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 968.2

Radius: 7.8

Gravity: 15.91 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 11.62 AU - 18.64 AU

Year: 22171 Days

Day: 17.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 91,463,559 km

• M1: 248,332 km (0.107 R)
• M2: 525,089 km (0.112 R)
• M3: 595,699 km (0.101 R)
• M4: 747,241 km (0.063 R)
• M5: 969,245 km (0.111 R)
• M6: 1,473,539 km (0.113 R)
• M7: 1,576,313 km (0.097 R)
• M8: 2,943,039 km (0.106 R)
• M9: 3,339,772 km (0.088 R)
• M10: 3,613,836 km (0.107 R)
• M11: 4,679,421 km (0.107 R)
• M12: 4,780,849 km (0.081 R)
• M13: 4,934,486 km (0.091 R)
• M14: 5,246,547 km (0.064 R)
• M15: 5,999,323 km (0.09 R)
• M16: 6,165,078 km (0.106 R)
• M17: 6,220,728 km (0.101 R)
• M18: 7,308,305 km (0.102 R)
• M19: 9,205,505 km (0.107 R)
• M20: 9,653,850 km (0.114 R)
• M21: 9,783,402 km (0.097 R)
• M22: 10,109,525 km (0.046 R)
• M23: 11,109,138 km (0.116 R)
• M24: 11,244,823 km (0.098 R)
• M25: 11,723,985 km (0.118 R)
• M26: 12,490,525 km (0.079 R)
• M27: 13,201,264 km (0.119 R)
• M28: 13,998,322 km (0.055 R)
• M29: 14,071,475 km (0.099 R)
• M30: 14,736,288 km (0.1 R)
• M31: 15,714,508 km (0.056 R)
• M32: 16,096,432 km (0.116 R)
• M33: 16,791,463 km (0.097 R)
• M34: 17,733,332 km (0.101 R)
• M35: 19,015,685 km (0.115 R)
• M36: 19,259,379 km (0.109 R)
• M37: 19,750,060 km (0.094 R)
• M38: 19,914,469 km (0.091 R)
• M39: 20,244,781 km (0.108 R)
• M40: 20,576,888 km (0.071 R)
• M41: 21,668,653 km (0.062 R)
• M42: 22,607,081 km (0.095 R)
• M43: 23,124,540 km (0.094 R)
• M44: 23,820,469 km (0.07 R)
• M45: 24,258,940 km (0.101 R)
• M46: 24,523,429 km (0.099 R)
• M47: 25,322,282 km (0.116 R)
• M48: 28,231,213 km (0.058 R)
• M49: 29,819,044 km (0.077 R)
• M50: 32,303,117 km (0.072 R)
• M51: 32,788,413 km (0.11 R)
• M52: 35,650,220 km (0.117 R)
• M53: 36,756,496 km (0.068 R)
• M54: 38,796,562 km (0.05 R)
• M55: 39,830,283 km (0.081 R)
• M56: 40,455,004 km (0.101 R)
• M57: 42,136,484 km (0.067 R)
• M58: 42,879,238 km (0.054 R)
• M59: 44,055,227 km (0.069 R)
• M60: 44,270,199 km (0.116 R)
• M61: 44,701,041 km (0.057 R)
• M62: 44,809,050 km (0.087 R)
• M63: 46,438,769 km (0.116 R)
• M64: 50,428,694 km (0.087 R)
• M65: 51,330,171 km (0.069 R)
• M66: 51,896,249 km (0.114 R)
• M67: 52,236,884 km (0.089 R)
• M68: 53,492,309 km (0.069 R)
• M69: 53,951,275 km (0.042 R)
• M70: 54,296,398 km (0.073 R)
• M71: 54,757,608 km (0.108 R)
• M72: 55,220,164 km (0.075 R)
• M73: 56,732,449 km (0.045 R)
• M74: 58,612,446 km (0.112 R)
• M75: 60,871,224 km (0.048 R)
• M76: 63,643,572 km (0.097 R)
• M77: 66,456,760 km (0.094 R)
• M78: 66,950,133 km (0.104 R)
• M79: 67,320,837 km (0.112 R)
• M80: 70,186,534 km (0.087 R)
• M81: 70,814,845 km (0.102 R)
• M82: 70,940,657 km (0.07 R)
• M83: 71,192,579 km (0.105 R)
• M84: 75,007,624 km (0.072 R)
• M85: 77,328,336 km (0.1 R)
• M86: 80,721,814 km (0.113 R)
• M87: 84,030,470 km (0.089 R)
• M88: 84,563,936 km (0.062 R)
• M89: 86,709,020 km (0.074 R)
• M90: 86,843,658 km (0.118 R)
• M91: 87,248,171 km (0.119 R)
• M92: 89,823,947 km (0.071 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: 256 - 17,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit