🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.64 AU - 0.64 AU

Year: 331 Days

Day: 32.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.63 AU - 0.67 AU

Year: 338 Days

Day: 46.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.54 AU - 0.78 AU

Year: 346 Days

Day: 13.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935

Radius: 8.9

Gravity: 11.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.22 AU - 1.46 AU

Year: 1002 Days

Day: 12.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 44,618,587 km

• M1: 122,072 km (0.083 R)
• M2: 222,751 km (0.068 R)
• M3: 298,897 km (0.026 R)
• M4: 367,712 km (0.11 R)
• M5: 524,939 km (0.054 R)
• M6: 624,721 km (0.065 R)
• M7: 680,222 km (0.099 R)
• M8: 744,249 km (0.047 R)
• M9: 830,717 km (0.116 R)
• M10: 999,763 km (0.04 R)
• M11: 1,066,034 km (0.091 R)
• M12: 1,126,472 km (0.109 R)
• M13: 1,250,788 km (0.042 R)
• M14: 1,371,513 km (0.118 R)
• M15: 1,479,373 km (0.107 R)
• M16: 1,590,225 km (0.063 R)
• M17: 1,784,254 km (0.072 R)
• M18: 1,856,809 km (0.084 R)
• M19: 2,033,035 km (0.117 R)
• M20: 2,108,881 km (0.091 R)
• M21: 2,283,163 km (0.058 R)
• M22: 2,342,254 km (0.116 R)
• M23: 2,584,154 km (0.06 R)
• M24: 2,666,582 km (0.108 R)
• M25: 2,951,416 km (0.119 R)
• M26: 3,168,782 km (0.116 R)
• M27: 3,481,890 km (0.111 R)
• M28: 3,584,664 km (0.075 R)
• M29: 3,723,341 km (0.053 R)
• M30: 4,344,621 km (0.092 R)
• M31: 4,592,056 km (0.072 R)
• M32: 4,692,436 km (0.109 R)
• M33: 4,755,567 km (0.07 R)
• M34: 5,152,899 km (0.068 R)
• M35: 5,375,500 km (0.11 R)
• M36: 5,561,151 km (0.079 R)
• M37: 6,255,285 km (0.081 R)
• M38: 6,310,936 km (0.098 R)
• M39: 6,761,674 km (0.051 R)
• M40: 6,904,690 km (0.118 R)
• M41: 7,005,519 km (0.118 R)
• M42: 7,193,862 km (0.117 R)
• M43: 7,354,531 km (0.104 R)
• M44: 7,486,925 km (0.11 R)
• M45: 7,560,826 km (0.084 R)
• M46: 7,933,923 km (0.094 R)
• M47: 8,039,390 km (0.091 R)
• M48: 8,236,709 km (0.116 R)
• M49: 8,313,004 km (0.109 R)
• M50: 8,389,598 km (0.083 R)
• M51: 8,450,933 km (0.052 R)
• M52: 8,947,598 km (0.071 R)
• M53: 9,010,280 km (0.08 R)
• M54: 9,183,664 km (0.058 R)
• M55: 9,294,516 km (0.118 R)
• M56: 9,629,765 km (0.112 R)
• M57: 9,710,248 km (0.062 R)
• M58: 10,312,230 km (0.099 R)
• M59: 10,378,053 km (0.117 R)
• M60: 10,526,753 km (0.101 R)
• M61: 10,626,086 km (0.064 R)
• M62: 10,842,704 km (0.058 R)
• M63: 10,976,744 km (0.119 R)
• M64: 11,161,946 km (0.09 R)
• M65: 11,365,100 km (0.111 R)
• M66: 11,433,167 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 14.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.67 AU - 1.87 AU

Year: 1520 Days

Day: 10.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 44,618,587 km

• M1: 187,147 km (0.053 R)
• M2: 404,363 km (0.042 R)
• M3: 622,327 km (0.051 R)
• M4: 826,379 km (0.037 R)
• M5: 919,728 km (0.051 R)
• M6: 1,538,165 km (0.112 R)
• M7: 1,664,127 km (0.113 R)
• M8: 1,816,866 km (0.03 R)
• M9: 1,998,478 km (0.033 R)
• M10: 2,145,084 km (0.089 R)
• M11: 2,236,488 km (0.077 R)
• M12: 2,354,820 km (0.099 R)
• M13: 2,527,755 km (0.094 R)
• M14: 2,642,347 km (0.109 R)
• M15: 3,015,743 km (0.099 R)
• M16: 3,213,661 km (0.104 R)
• M17: 3,377,172 km (0.086 R)
• M18: 3,652,582 km (0.042 R)
• M19: 3,793,054 km (0.064 R)
• M20: 3,904,654 km (0.074 R)
• M21: 4,278,050 km (0.091 R)
• M22: 4,437,073 km (0.057 R)
• M23: 4,576,498 km (0.1 R)
• M24: 4,992,530 km (0.102 R)
• M25: 5,126,569 km (0.045 R)
• M26: 5,489,793 km (0.111 R)
• M27: 5,651,359 km (0.078 R)
• M28: 6,145,630 km (0.074 R)
• M29: 6,519,625 km (0.083 R)
• M30: 6,690,914 km (0.066 R)
• M31: 7,000,582 km (0.107 R)
• M32: 7,239,041 km (0.071 R)
• M33: 7,569,951 km (0.108 R)
• M34: 7,866,754 km (0.045 R)
• M35: 8,432,084 km (0.111 R)
• M36: 8,525,283 km (0.072 R)
• M37: 8,888,357 km (0.062 R)
• M38: 9,174,239 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.6

Radius: 12.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.76 AU - 1.96 AU

Year: 1638 Days

Day: 13.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 44,618,587 km

• M1: 153,637 km (0.092 R)
• M2: 283,338 km (0.09 R)
• M3: 417,976 km (0.101 R)
• M4: 523,892 km (0.088 R)
• M5: 653,144 km (0.095 R)
• M6: 735,423 km (0.077 R)
• M7: 862,881 km (0.112 R)
• M8: 1,057,807 km (0.107 R)
• M9: 1,204,263 km (0.096 R)
• M10: 1,666,969 km (0.115 R)
• M11: 1,793,529 km (0.068 R)
• M12: 1,904,530 km (0.056 R)
• M13: 1,989,502 km (0.069 R)
• M14: 2,114,416 km (0.073 R)
• M15: 2,413,014 km (0.098 R)
• M16: 2,693,510 km (0.037 R)
• M17: 2,919,103 km (0.093 R)
• M18: 3,050,899 km (0.064 R)
• M19: 3,297,735 km (0.082 R)
• M20: 3,389,140 km (0.035 R)
• M21: 3,763,284 km (0.091 R)
• M22: 3,895,080 km (0.081 R)
• M23: 4,163,309 km (0.097 R)
• M24: 4,312,159 km (0.059 R)
• M25: 4,564,231 km (0.029 R)
• M26: 4,743,599 km (0.054 R)
• M27: 4,925,360 km (0.106 R)
• M28: 5,229,044 km (0.113 R)
• M29: 5,484,557 km (0.118 R)
• M30: 5,620,691 km (0.108 R)
• M31: 6,247,357 km (0.074 R)
• M32: 6,547,450 km (0.059 R)
• M33: 6,663,089 km (0.103 R)
• M34: 6,793,838 km (0.111 R)
• M35: 6,940,294 km (0.025 R)
• M36: 7,191,618 km (0.076 R)
• M37: 7,340,917 km (0.115 R)
• M38: 7,718,502 km (0.073 R)
• M39: 7,932,876 km (0.109 R)
• M40: 8,009,919 km (0.067 R)
• M41: 8,164,603 km (0.052 R)
• M42: 8,273,660 km (0.106 R)
• M43: 8,351,750 km (0.091 R)
• M44: 8,477,263 km (0.11 R)
• M45: 8,650,796 km (0.087 R)
• M46: 8,746,090 km (0.108 R)
• M47: 8,825,676 km (0.034 R)
• M48: 8,937,426 km (0.091 R)
• M49: 9,049,774 km (0.096 R)
• M50: 9,130,257 km (0.069 R)
• M51: 9,422,272 km (0.073 R)
• M52: 9,536,565 km (0.069 R)
• M53: 9,651,307 km (0.095 R)
• M54: 9,750,191 km (0.059 R)
• M55: 9,849,225 km (0.077 R)
• M56: 9,998,673 km (0.085 R)
• M57: 10,232,345 km (0.103 R)
• M58: 10,349,929 km (0.119 R)
• M59: 10,586,443 km (0.1 R)
• M60: 10,824,752 km (0.037 R)
• M61: 10,927,526 km (0.054 R)
• M62: 11,655,320 km (0.044 R)
• M63: 11,742,984 km (0.039 R)
• M64: 11,883,756 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.8

Radius: 14.8

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.6 AU - 3.88 AU

Year: 3766 Days

Day: 13.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 44,618,587 km

• M1: 188,643 km (0.032 R)
• M2: 281,693 km (0.111 R)
• M3: 377,884 km (0.1 R)
• M4: 516,561 km (0.11 R)
• M5: 698,173 km (0.077 R)
• M6: 845,378 km (0.103 R)
• M7: 980,764 km (0.081 R)
• M8: 1,099,993 km (0.027 R)
• M9: 1,267,393 km (0.058 R)
• M10: 1,372,112 km (0.096 R)
• M11: 1,581,848 km (0.083 R)
• M12: 1,743,862 km (0.027 R)
• M13: 1,841,999 km (0.077 R)
• M14: 2,296,477 km (0.109 R)
• M15: 2,415,706 km (0.046 R)
• M16: 2,581,910 km (0.098 R)
• M17: 2,751,853 km (0.118 R)
• M18: 2,914,017 km (0.093 R)
• M19: 3,091,440 km (0.118 R)
• M20: 3,199,599 km (0.09 R)
• M21: 3,333,639 km (0.098 R)
• M22: 3,432,224 km (0.053 R)
• M23: 3,569,555 km (0.073 R)
• M24: 3,708,830 km (0.09 R)
• M25: 3,862,767 km (0.044 R)
• M26: 4,005,932 km (0.117 R)
• M27: 4,190,536 km (0.087 R)
• M28: 4,324,276 km (0.117 R)
• M29: 4,472,976 km (0.088 R)
• M30: 4,664,761 km (0.05 R)
• M31: 5,085,131 km (0.12 R)
• M32: 5,213,635 km (0.05 R)
• M33: 5,314,464 km (0.07 R)
• M34: 5,430,403 km (0.079 R)
• M35: 5,561,750 km (0.112 R)
• M36: 5,723,914 km (0.094 R)
• M37: 5,887,723 km (0.036 R)
• M38: 6,037,920 km (0.12 R)
• M39: 6,235,090 km (0.054 R)
• M40: 6,419,095 km (0.104 R)
• M41: 6,542,812 km (0.079 R)
• M42: 6,918,602 km (0.031 R)
• M43: 7,109,190 km (0.104 R)
• M44: 7,773,554 km (0.112 R)
• M45: 7,905,649 km (0.063 R)
• M46: 8,005,132 km (0.101 R)
• M47: 8,255,708 km (0.044 R)
• M48: 8,373,442 km (0.077 R)
• M49: 8,764,640 km (0.073 R)
• M50: 9,301,397 km (0.04 R)
• M51: 9,653,401 km (0.067 R)
• M52: 9,848,925 km (0.096 R)
• M53: 10,753,993 km (0.103 R)
• M54: 10,993,798 km (0.095 R)
• M55: 11,123,649 km (0.114 R)
• M56: 11,272,648 km (0.034 R)
• M57: 11,704,687 km (0.033 R)
• M58: 12,046,668 km (0.03 R)
• M59: 12,372,791 km (0.054 R)
• M60: 12,604,668 km (0.11 R)
• M61: 12,701,757 km (0.104 R)
• M62: 12,974,773 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.4

Radius: 11.4

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.09 AU - 6.25 AU

Year: 8717 Days

Day: 13.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 44,618,587 km

• M1: 159,621 km (0.092 R)
• M2: 275,410 km (0.06 R)
• M3: 371,452 km (0.103 R)
• M4: 622,477 km (0.116 R)
• M5: 806,183 km (0.076 R)
• M6: 1,091,167 km (0.112 R)
• M7: 1,734,438 km (0.112 R)
• M8: 1,896,303 km (0.115 R)
• M9: 2,389,826 km (0.116 R)
• M10: 2,570,839 km (0.089 R)
• M11: 2,733,003 km (0.08 R)
• M12: 2,827,101 km (0.101 R)
• M13: 2,898,608 km (0.027 R)
• M14: 3,067,504 km (0.062 R)
• M15: 3,215,008 km (0.107 R)
• M16: 3,390,187 km (0.113 R)
• M17: 3,619,969 km (0.046 R)
• M18: 3,802,329 km (0.065 R)
• M19: 4,176,324 km (0.096 R)
• M20: 4,285,381 km (0.086 R)
• M21: 4,450,686 km (0.093 R)
• M22: 5,104,130 km (0.117 R)
• M23: 5,220,966 km (0.098 R)
• M24: 5,309,079 km (0.055 R)
• M25: 5,636,698 km (0.117 R)
• M26: 5,879,047 km (0.09 R)
• M27: 6,124,986 km (0.116 R)
• M28: 6,249,152 km (0.091 R)
• M29: 6,342,950 km (0.043 R)
• M30: 6,500,177 km (0.117 R)
• M31: 6,915,012 km (0.025 R)
• M32: 7,371,585 km (0.112 R)
• M33: 7,470,768 km (0.086 R)
• M34: 9,401,179 km (0.092 R)
• M35: 9,797,763 km (0.03 R)
• M36: 10,162,931 km (0.102 R)
• M37: 10,569,987 km (0.113 R)
• M38: 10,644,487 km (0.095 R)
• M39: 10,756,685 km (0.066 R)
• M40: 10,831,783 km (0.119 R)
• M41: 10,944,580 km (0.093 R)
• M42: 11,019,978 km (0.066 R)
• M43: 11,977,853 km (0.084 R)
• M44: 12,055,644 km (0.101 R)
• M45: 12,250,869 km (0.108 R)
• M46: 13,605,926 km (0.1 R)
• M47: 13,890,761 km (0.117 R)
• M48: 13,972,591 km (0.059 R)
• M49: 14,218,829 km (0.077 R)
• M50: 15,218,143 km (0.093 R)
• M51: 15,429,225 km (0.118 R)
• M52: 15,811,448 km (0.108 R)
• M53: 16,111,092 km (0.093 R)
• M54: 16,455,766 km (0.08 R)
• M55: 16,715,767 km (0.11 R)
• M56: 16,977,264 km (0.066 R)
• M57: 18,125,876 km (0.088 R)
• M58: 18,574,371 km (0.093 R)
• M59: 19,299,621 km (0.096 R)
• M60: 20,126,449 km (0.06 R)
• M61: 20,311,800 km (0.097 R)
• M62: 22,531,534 km (0.083 R)
• M63: 22,627,725 km (0.093 R)
• M64: 23,013,688 km (0.039 R)
• M65: 23,792,345 km (0.031 R)
• M66: 24,332,692 km (0.054 R)
• M67: 25,075,894 km (0.043 R)
• M68: 26,179,478 km (0.063 R)
• M69: 28,278,336 km (0.12 R)
• M70: 29,689,792 km (0.032 R)
• M71: 29,900,874 km (0.09 R)
• M72: 30,377,493 km (0.076 R)
• M73: 31,017,024 km (0.075 R)
• M74: 31,284,804 km (0.106 R)
• M75: 31,984,623 km (0.06 R)
• M76: 32,092,782 km (0.105 R)
• M77: 32,798,585 km (0.115 R)
• M78: 37,253,311 km (0.075 R)
• M79: 37,937,721 km (0.1 R)
• M80: 38,281,497 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315.4

Radius: 4.8

Gravity: 13.69 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.71 AU - 9.27 AU

Year: 13235 Days

Day: 17.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 44,618,587 km

• M1: 125,812 km (0.079 R)
• M2: 205,099 km (0.111 R)
• M3: 268,528 km (0.108 R)
• M4: 376,837 km (0.097 R)
• M5: 484,996 km (0.105 R)
• M6: 974,929 km (0.12 R)
• M7: 1,144,573 km (0.105 R)
• M8: 1,323,492 km (0.107 R)
• M9: 1,489,995 km (0.049 R)
• M10: 1,619,247 km (0.075 R)
• M11: 1,797,418 km (0.051 R)
• M12: 2,100,205 km (0.112 R)
• M13: 2,196,695 km (0.107 R)
• M14: 2,545,408 km (0.098 R)
• M15: 2,778,780 km (0.113 R)
• M16: 3,293,846 km (0.065 R)
• M17: 3,462,592 km (0.087 R)
• M18: 3,634,031 km (0.072 R)
• M19: 3,955,816 km (0.084 R)
• M20: 4,015,356 km (0.112 R)
• M21: 4,225,841 km (0.115 R)
• M22: 4,910,700 km (0.088 R)
• M23: 5,763,707 km (0.04 R)
• M24: 5,831,325 km (0.067 R)
• M25: 6,103,892 km (0.065 R)
• M26: 6,697,048 km (0.086 R)
• M27: 6,732,503 km (0.114 R)
• M28: 6,910,674 km (0.079 R)
• M29: 7,271,952 km (0.054 R)
• M30: 7,528,363 km (0.11 R)
• M31: 7,825,165 km (0.026 R)
• M32: 8,088,009 km (0.078 R)
• M33: 8,815,803 km (0.047 R)
• M34: 8,893,593 km (0.095 R)
• M35: 8,932,638 km (0.109 R)
• M36: 9,764,702 km (0.1 R)
• M37: 9,885,577 km (0.117 R)
• M38: 10,251,344 km (0.084 R)
• M39: 10,662,738 km (0.062 R)
• M40: 10,787,203 km (0.106 R)
• M41: 10,912,267 km (0.039 R)
• M42: 11,374,674 km (0.118 R)
• M43: 12,755,612 km (0.082 R)
• M44: 13,287,133 km (0.09 R)
• M45: 13,780,507 km (0.117 R)
• M46: 14,554,975 km (0.105 R)
• M47: 14,600,902 km (0.05 R)
• M48: 15,249,857 km (0.114 R)
• M49: 15,483,978 km (0.081 R)
• M50: 16,098,077 km (0.111 R)
• M51: 16,384,108 km (0.102 R)
• M52: 16,527,872 km (0.05 R)
• M53: 16,575,893 km (0.089 R)
• M54: 17,496,369 km (0.081 R)
• M55: 18,582,898 km (0.109 R)
• M56: 18,882,991 km (0.091 R)
• M57: 19,589,542 km (0.11 R)
• M58: 19,792,995 km (0.112 R)
• M59: 21,393,094 km (0.025 R)
• M60: 22,182,223 km (0.089 R)
• M61: 22,927,370 km (0.059 R)
• M62: 23,356,716 km (0.074 R)
• M63: 23,680,595 km (0.1 R)
• M64: 24,825,617 km (0.086 R)
• M65: 25,156,079 km (0.083 R)
• M66: 25,432,536 km (0.039 R)
• M67: 26,156,141 km (0.073 R)
• M68: 27,452,855 km (0.114 R)
• M69: 27,908,680 km (0.119 R)
• M70: 28,195,010 km (0.027 R)
• M71: 29,117,430 km (0.054 R)
• M72: 29,407,650 km (0.042 R)
• M73: 29,524,037 km (0.103 R)
• M74: 29,698,917 km (0.038 R)
• M75: 31,228,705 km (0.049 R)
• M76: 32,723,786 km (0.097 R)
• M77: 33,449,635 km (0.05 R)
• M78: 34,548,282 km (0.114 R)
• M79: 34,671,102 km (0.072 R)
• M80: 35,287,295 km (0.074 R)
• M81: 35,720,830 km (0.037 R)
• M82: 35,782,913 km (0.047 R)
• M83: 38,485,847 km (0.05 R)
• M84: 40,474,751 km (0.099 R)
• M85: 40,669,079 km (0.106 R)
• M86: 41,579,681 km (0.12 R)
• M87: 41,775,654 km (0.102 R)
• M88: 42,562,689 km (0.106 R)
• M89: 42,628,512 km (0.092 R)
• M90: 43,024,198 km (0.068 R)
• M91: 43,819,012 km (0.078 R)
• M92: 43,885,433 km (0.105 R)
• M93: 44,618,612 km (0.081 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: 405 - 15,852 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit