🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.53 AU - 0.71 AU

Year: 183 Days

Day: 40.1 Hours

Environment

Temp: 210 °C

Axial Tilt: 18 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,666,007 km

• M1: 579,393 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.68 AU - 0.76 AU

Year: 229 Days

Day: 38.6 Hours

Environment

Temp: 92 °C

Axial Tilt: 45.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.71 AU - 2.63 AU

Year: 1198 Days

Day: 22.4 Hours

Environment

Temp: -83 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,666,007 km

• M1: 401,371 km (0.083 R)

Asteroid Belt

Center: 3.59 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.1

Radius: 10

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.99 AU - 6.03 AU

Year: 4202 Days

Day: 10.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 47,666,007 km

• M1: 282,142 km (0.101 R)
• M2: 999,463 km (0.113 R)
• M3: 1,098,946 km (0.086 R)
• M4: 1,216,979 km (0.106 R)
• M5: 1,514,828 km (0.075 R)
• M6: 2,049,341 km (0.08 R)
• M7: 2,252,645 km (0.062 R)
• M8: 2,599,413 km (0.098 R)
• M9: 2,698,746 km (0.096 R)
• M10: 2,942,590 km (0.105 R)
• M11: 3,429,980 km (0.08 R)
• M12: 3,561,327 km (0.098 R)
• M13: 3,716,609 km (0.091 R)
• M14: 4,384,115 km (0.115 R)
• M15: 4,479,110 km (0.117 R)
• M16: 4,695,428 km (0.062 R)
• M17: 5,088,572 km (0.069 R)
• M18: 5,289,182 km (0.115 R)
• M19: 5,569,230 km (0.072 R)
• M20: 6,357,610 km (0.105 R)
• M21: 6,819,868 km (0.116 R)
• M22: 7,041,123 km (0.097 R)
• M23: 7,180,698 km (0.043 R)
• M24: 7,434,266 km (0.033 R)
• M25: 7,633,381 km (0.037 R)
• M26: 7,748,123 km (0.078 R)
• M27: 8,865,619 km (0.099 R)
• M28: 9,381,731 km (0.115 R)
• M29: 9,473,884 km (0.1 R)
• M30: 10,190,158 km (0.044 R)
• M31: 10,730,655 km (0.11 R)
• M32: 11,247,965 km (0.089 R)
• M33: 11,378,564 km (0.05 R)
• M34: 11,972,617 km (0.048 R)
• M35: 12,340,628 km (0.118 R)
• M36: 12,746,337 km (0.118 R)
• M37: 13,225,200 km (0.065 R)
• M38: 13,362,979 km (0.1 R)
• M39: 13,605,478 km (0.098 R)
• M40: 13,884,478 km (0.12 R)
• M41: 14,235,733 km (0.105 R)
• M42: 14,483,467 km (0.118 R)
• M43: 14,625,585 km (0.066 R)
• M44: 14,768,152 km (0.093 R)
• M45: 15,706,580 km (0.113 R)
• M46: 16,072,646 km (0.078 R)
• M47: 16,219,850 km (0.08 R)
• M48: 16,404,454 km (0.049 R)
• M49: 16,775,905 km (0.072 R)
• M50: 17,187,748 km (0.119 R)
• M51: 17,564,884 km (0.046 R)
• M52: 18,212,494 km (0.067 R)
• M53: 18,365,981 km (0.088 R)
• M54: 19,062,060 km (0.064 R)
• M55: 19,178,896 km (0.031 R)
• M56: 19,530,900 km (0.112 R)
• M57: 20,201,696 km (0.064 R)
• M58: 22,381,936 km (0.118 R)
• M59: 22,464,215 km (0.071 R)
• M60: 22,546,493 km (0.099 R)
• M61: 22,628,772 km (0.099 R)
• M62: 22,752,639 km (0.026 R)
• M63: 23,416,405 km (0.07 R)
• M64: 23,541,619 km (0.119 R)
• M65: 24,128,790 km (0.091 R)
• M66: 24,255,200 km (0.065 R)
• M67: 24,339,723 km (0.08 R)
• M68: 24,635,927 km (0.089 R)
• M69: 25,103,869 km (0.042 R)
• M70: 25,232,074 km (0.115 R)
• M71: 26,048,580 km (0.055 R)
• M72: 26,178,431 km (0.11 R)
• M73: 26,481,965 km (0.095 R)
• M74: 27,004,959 km (0.104 R)
• M75: 28,683,746 km (0.12 R)
• M76: 29,176,073 km (0.081 R)
• M77: 29,400,769 km (0.088 R)
• M78: 29,851,806 km (0.067 R)
• M79: 29,942,313 km (0.064 R)
• M80: 30,441,671 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.4

Radius: 8.4

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.79 AU - 9.37 AU

Year: 7820 Days

Day: 11.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 47,666,007 km

• M1: 380,577 km (0.119 R)
• M2: 538,104 km (0.099 R)
• M3: 674,537 km (0.093 R)
• M4: 822,938 km (0.062 R)
• M5: 982,110 km (0.111 R)
• M6: 1,169,257 km (0.096 R)
• M7: 1,222,364 km (0.11 R)
• M8: 1,481,169 km (0.101 R)
• M9: 1,777,821 km (0.039 R)
• M10: 1,839,306 km (0.11 R)
• M11: 2,071,482 km (0.085 R)
• M12: 2,403,140 km (0.101 R)
• M13: 2,471,506 km (0.046 R)
• M14: 2,704,281 km (0.083 R)
• M15: 3,017,539 km (0.097 R)
• M16: 3,166,089 km (0.101 R)
• M17: 3,470,371 km (0.106 R)
• M18: 3,652,282 km (0.029 R)
• M19: 3,944,597 km (0.104 R)
• M20: 4,079,983 km (0.114 R)
• M21: 4,355,243 km (0.088 R)
• M22: 4,551,665 km (0.105 R)
• M23: 4,636,786 km (0.105 R)
• M24: 5,128,813 km (0.116 R)
• M25: 6,068,587 km (0.113 R)
• M26: 6,193,651 km (0.093 R)
• M27: 6,288,047 km (0.07 R)
• M28: 6,832,135 km (0.07 R)
• M29: 6,962,285 km (0.053 R)
• M30: 7,126,244 km (0.102 R)
• M31: 7,357,822 km (0.115 R)
• M32: 7,524,922 km (0.051 R)
• M33: 8,941,016 km (0.098 R)
• M34: 9,190,994 km (0.112 R)
• M35: 9,844,138 km (0.049 R)
• M36: 10,102,195 km (0.113 R)
• M37: 10,213,495 km (0.106 R)
• M38: 10,927,825 km (0.102 R)
• M39: 11,425,837 km (0.107 R)
• M40: 12,444,000 km (0.095 R)
• M41: 12,563,379 km (0.074 R)
• M42: 13,287,432 km (0.092 R)
• M43: 13,572,716 km (0.115 R)
• M44: 13,736,675 km (0.079 R)
• M45: 13,859,944 km (0.074 R)
• M46: 13,942,372 km (0.079 R)
• M47: 15,029,051 km (0.115 R)
• M48: 15,582,563 km (0.082 R)
• M49: 15,711,367 km (0.072 R)
• M50: 16,229,574 km (0.089 R)
• M51: 16,447,239 km (0.104 R)
• M52: 17,238,611 km (0.113 R)
• M53: 17,728,395 km (0.099 R)
• M54: 18,448,858 km (0.076 R)
• M55: 18,858,308 km (0.107 R)
• M56: 19,132,969 km (0.113 R)
• M57: 19,224,822 km (0.107 R)
• M58: 20,338,579 km (0.106 R)
• M59: 21,759,758 km (0.071 R)
• M60: 21,855,651 km (0.12 R)
• M61: 22,822,352 km (0.056 R)
• M62: 23,852,333 km (0.053 R)
• M63: 23,951,217 km (0.073 R)
• M64: 24,050,102 km (0.112 R)
• M65: 26,160,778 km (0.115 R)
• M66: 26,518,317 km (0.1 R)
• M67: 26,980,425 km (0.117 R)
• M68: 27,600,508 km (0.101 R)
• M69: 27,704,329 km (0.07 R)
• M70: 28,434,815 km (0.081 R)
• M71: 28,749,719 km (0.112 R)
• M72: 30,074,558 km (0.065 R)
• M73: 31,256,830 km (0.075 R)
• M74: 31,636,210 km (0.099 R)
• M75: 32,728,424 km (0.09 R)
• M76: 33,444,998 km (0.056 R)
• M77: 35,343,544 km (0.101 R)
• M78: 35,456,341 km (0.026 R)
• M79: 36,590,592 km (0.109 R)
• M80: 36,990,317 km (0.11 R)
• M81: 37,047,613 km (0.058 R)
• M82: 37,219,501 km (0.054 R)
• M83: 38,256,215 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.3

Radius: 11.8

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.5 AU - 9.58 AU

Year: 8543 Days

Day: 6.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 47,666,007 km

• M1: 195,225 km (0.11 R)
• M2: 387,159 km (0.106 R)
• M3: 561,142 km (0.115 R)
• M4: 644,767 km (0.106 R)
• M5: 826,827 km (0.094 R)
• M6: 908,059 km (0.091 R)
• M7: 1,079,498 km (0.083 R)
• M8: 1,280,857 km (0.08 R)
• M9: 1,980,975 km (0.115 R)
• M10: 2,253,542 km (0.103 R)
• M11: 2,466,121 km (0.089 R)
• M12: 2,562,612 km (0.037 R)
• M13: 2,784,914 km (0.084 R)
• M14: 2,987,769 km (0.102 R)
• M15: 3,653,030 km (0.092 R)
• M16: 4,102,722 km (0.091 R)
• M17: 4,334,299 km (0.071 R)
• M18: 4,422,263 km (0.114 R)
• M19: 4,599,985 km (0.072 R)
• M20: 5,054,762 km (0.054 R)
• M21: 5,619,494 km (0.101 R)
• M22: 5,812,326 km (0.113 R)
• M23: 6,040,014 km (0.076 R)
• M24: 6,774,689 km (0.097 R)
• M25: 7,965,339 km (0.072 R)
• M26: 8,145,903 km (0.113 R)
• M27: 8,621,774 km (0.111 R)
• M28: 9,182,168 km (0.095 R)
• M29: 9,947,660 km (0.105 R)
• M30: 10,103,242 km (0.034 R)
• M31: 10,773,440 km (0.104 R)
• M32: 11,295,537 km (0.026 R)
• M33: 11,458,000 km (0.094 R)
• M34: 12,239,799 km (0.118 R)
• M35: 13,081,287 km (0.105 R)
• M36: 15,087,095 km (0.09 R)
• M37: 15,355,773 km (0.111 R)
• M38: 16,492,118 km (0.112 R)
• M39: 17,000,751 km (0.067 R)
• M40: 17,093,801 km (0.108 R)
• M41: 17,561,444 km (0.104 R)
• M42: 18,128,270 km (0.095 R)
• M43: 18,366,280 km (0.043 R)
• M44: 18,701,230 km (0.104 R)
• M45: 18,941,634 km (0.106 R)
• M46: 19,620,359 km (0.115 R)
• M47: 20,802,332 km (0.108 R)
• M48: 22,823,250 km (0.069 R)
• M49: 23,131,720 km (0.089 R)
• M50: 23,441,687 km (0.059 R)
• M51: 23,649,030 km (0.117 R)
• M52: 26,023,746 km (0.101 R)
• M53: 26,507,696 km (0.066 R)
• M54: 27,212,152 km (0.09 R)
• M55: 27,648,678 km (0.118 R)
• M56: 28,363,008 km (0.038 R)
• M57: 29,585,522 km (0.068 R)
• M58: 29,809,769 km (0.087 R)
• M59: 29,978,217 km (0.112 R)
• M60: 30,598,748 km (0.062 R)
• M61: 31,852,379 km (0.101 R)
• M62: 32,254,797 km (0.077 R)
• M63: 32,774,799 km (0.102 R)
• M64: 32,890,588 km (0.04 R)
• M65: 33,881,375 km (0.115 R)
• M66: 34,527,637 km (0.114 R)
• M67: 34,645,670 km (0.074 R)
• M68: 35,118,699 km (0.111 R)
• M69: 35,356,110 km (0.076 R)
• M70: 36,131,177 km (0.098 R)
• M71: 36,791,502 km (0.078 R)
• M72: 37,395,129 km (0.083 R)
• M73: 37,941,311 km (0.073 R)
• M74: 38,306,779 km (0.058 R)
• M75: 38,918,784 km (0.073 R)
• M76: 39,533,780 km (0.062 R)
• M77: 39,842,551 km (0.089 R)
• M78: 41,335,687 km (0.097 R)
• M79: 41,963,250 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.8

Radius: 10.2

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 7.02 AU - 9.16 AU

Year: 8623 Days

Day: 12.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 47,666,007 km

• M1: 128,355 km (0.09 R)
• M2: 202,705 km (0.119 R)
• M3: 286,480 km (0.094 R)
• M4: 401,072 km (0.079 R)
• M5: 479,162 km (0.069 R)
• M6: 549,174 km (0.091 R)
• M7: 902,524 km (0.044 R)
• M8: 1,010,683 km (0.119 R)
• M9: 1,085,482 km (0.072 R)
• M10: 1,181,524 km (0.112 R)
• M11: 1,321,248 km (0.055 R)
• M12: 1,487,751 km (0.112 R)
• M13: 1,841,699 km (0.102 R)
• M14: 2,705,477 km (0.094 R)
• M15: 3,562,673 km (0.028 R)
• M16: 3,649,889 km (0.071 R)
• M17: 3,737,852 km (0.043 R)
• M18: 4,127,256 km (0.087 R)
• M19: 4,373,344 km (0.084 R)
• M20: 7,985,385 km (0.084 R)
• M21: 8,331,255 km (0.103 R)
• M22: 8,486,538 km (0.108 R)
• M23: 8,603,523 km (0.082 R)
• M24: 9,559,603 km (0.06 R)
• M25: 9,803,896 km (0.117 R)
• M26: 10,381,943 km (0.114 R)
• M27: 10,507,306 km (0.113 R)
• M28: 10,633,117 km (0.093 R)
• M29: 10,717,341 km (0.087 R)
• M30: 11,398,610 km (0.092 R)
• M31: 11,571,096 km (0.119 R)
• M32: 13,072,311 km (0.086 R)
• M33: 13,571,070 km (0.118 R)
• M34: 15,057,175 km (0.095 R)
• M35: 16,108,699 km (0.093 R)
• M36: 16,741,049 km (0.108 R)
• M37: 16,937,321 km (0.096 R)
• M38: 17,779,707 km (0.103 R)
• M39: 17,929,903 km (0.116 R)
• M40: 18,686,719 km (0.118 R)
• M41: 18,890,322 km (0.052 R)
• M42: 19,556,930 km (0.066 R)
• M43: 20,075,137 km (0.092 R)
• M44: 20,335,886 km (0.1 R)
• M45: 20,492,814 km (0.098 R)
• M46: 20,597,682 km (0.042 R)
• M47: 21,230,780 km (0.088 R)
• M48: 22,031,129 km (0.041 R)
• M49: 22,300,106 km (0.038 R)
• M50: 24,047,259 km (0.11 R)
• M51: 24,937,367 km (0.109 R)
• M52: 25,105,365 km (0.07 R)
• M53: 26,349,571 km (0.068 R)
• M54: 26,577,857 km (0.097 R)
• M55: 28,136,368 km (0.093 R)
• M56: 29,309,813 km (0.104 R)
• M57: 29,902,670 km (0.082 R)
• M58: 30,799,060 km (0.11 R)
• M59: 31,280,915 km (0.089 R)
• M60: 31,765,163 km (0.098 R)
• M61: 32,008,260 km (0.067 R)
• M62: 33,355,987 km (0.105 R)
• M63: 33,603,123 km (0.087 R)
• M64: 33,912,790 km (0.03 R)
• M65: 34,722,414 km (0.083 R)
• M66: 37,637,927 km (0.057 R)
• M67: 37,766,431 km (0.037 R)
• M68: 38,475,974 km (0.064 R)
• M69: 38,735,077 km (0.076 R)
• M70: 38,929,854 km (0.095 R)
• M71: 39,124,930 km (0.107 R)
• M72: 41,623,364 km (0.051 R)
• M73: 41,689,935 km (0.074 R)
• M74: 41,756,356 km (0.065 R)
• M75: 43,227,950 km (0.103 R)
• M76: 44,105,491 km (0.099 R)
• M77: 44,173,259 km (0.084 R)
• M78: 45,535,348 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.3

Radius: 10.5

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.8 AU - 10.46 AU

Year: 10338 Days

Day: 14.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 142.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 47,666,007 km

• M1: 164,558 km (0.112 R)
• M2: 285,732 km (0.066 R)
• M3: 468,840 km (0.081 R)
• M4: 710,590 km (0.112 R)
• M5: 936,632 km (0.029 R)
• M6: 1,146,219 km (0.1 R)
• M7: 1,413,999 km (0.115 R)
• M8: 1,544,448 km (0.098 R)
• M9: 1,747,902 km (0.025 R)
• M10: 2,057,420 km (0.096 R)
• M11: 2,181,137 km (0.117 R)
• M12: 2,514,740 km (0.099 R)
• M13: 3,003,327 km (0.094 R)
• M14: 3,258,840 km (0.057 R)
• M15: 3,580,775 km (0.092 R)
• M16: 4,036,450 km (0.056 R)
• M17: 4,414,184 km (0.076 R)
• M18: 4,705,152 km (0.054 R)
• M19: 4,935,683 km (0.06 R)
• M20: 5,069,273 km (0.095 R)
• M21: 5,305,638 km (0.043 R)
• M22: 5,789,587 km (0.099 R)
• M23: 6,360,004 km (0.035 R)
• M24: 6,541,915 km (0.12 R)
• M25: 7,173,517 km (0.108 R)
• M26: 7,363,058 km (0.066 R)
• M27: 8,374,938 km (0.06 R)
• M28: 8,856,643 km (0.06 R)
• M29: 9,430,201 km (0.068 R)
• M30: 9,721,318 km (0.107 R)
• M31: 10,312,828 km (0.081 R)
• M32: 11,265,617 km (0.076 R)
• M33: 11,574,686 km (0.104 R)
• M34: 11,886,598 km (0.089 R)
• M35: 12,156,173 km (0.108 R)
• M36: 12,337,037 km (0.053 R)
• M37: 12,518,799 km (0.117 R)
• M38: 12,655,681 km (0.113 R)
• M39: 12,793,012 km (0.11 R)
• M40: 14,099,151 km (0.105 R)
• M41: 14,960,984 km (0.062 R)
• M42: 15,988,123 km (0.074 R)
• M43: 17,443,561 km (0.098 R)
• M44: 17,698,774 km (0.076 R)
• M45: 18,419,986 km (0.088 R)
• M46: 18,575,867 km (0.119 R)
• M47: 19,361,405 km (0.065 R)
• M48: 19,731,810 km (0.089 R)
• M49: 19,944,388 km (0.096 R)
• M50: 20,051,051 km (0.104 R)
• M51: 21,019,099 km (0.073 R)
• M52: 22,002,556 km (0.074 R)
• M53: 23,000,822 km (0.111 R)
• M54: 23,168,671 km (0.114 R)
• M55: 24,983,892 km (0.07 R)
• M56: 25,444,803 km (0.071 R)
• M57: 26,375,152 km (0.074 R)
• M58: 26,550,929 km (0.112 R)
• M59: 26,668,214 km (0.029 R)
• M60: 26,962,323 km (0.102 R)
• M61: 28,149,383 km (0.051 R)
• M62: 30,574,514 km (0.096 R)
• M63: 31,439,040 km (0.098 R)
• M64: 32,311,494 km (0.066 R)
• M65: 34,207,947 km (0.095 R)
• M66: 34,463,609 km (0.033 R)
• M67: 34,655,693 km (0.091 R)
• M68: 34,912,403 km (0.087 R)
• M69: 35,298,515 km (0.048 R)
• M70: 37,119,570 km (0.035 R)
• M71: 37,645,556 km (0.03 R)
• M72: 37,975,419 km (0.116 R)
• M73: 38,173,936 km (0.112 R)
• M74: 39,639,546 km (0.054 R)
• M75: 40,109,732 km (0.079 R)
• M76: 40,581,863 km (0.081 R)
• M77: 40,987,872 km (0.056 R)
• M78: 43,176,489 km (0.097 R)
• M79: 43,798,816 km (0.044 R)
• M80: 44,215,296 km (0.079 R)
• M81: 44,563,411 km (0.049 R)
• M82: 44,772,698 km (0.088 R)
• M83: 44,912,422 km (0.098 R)
• M84: 46,035,454 km (0.096 R)
• M85: 47,096,701 km (0.079 R)
• M86: 47,167,760 km (0.047 R)
• M87: 47,309,878 km (0.116 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: 359 - 18,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit