🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.59 AU - 0.91 AU

Year: 226 Days

Day: 35.7 Hours

Environment

Temp: 136 °C

Axial Tilt: 13.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 59,213,518 km

• M1: 62,532 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.07 AU - 1.39 AU

Year: 475 Days

Day: 33 Hours

Environment

Temp: 27 °C

Axial Tilt: 24.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.24 AU - 5.22 AU

Year: 3030 Days

Day: 23.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 8.7

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.65 AU - 8.61 AU

Year: 6630 Days

Day: 6.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 59,213,518 km

• M1: 112,647 km (0.048 R)
• M2: 183,706 km (0.106 R)
• M3: 240,105 km (0.11 R)
• M4: 425,008 km (0.065 R)
• M5: 735,573 km (0.053 R)
• M6: 1,177,485 km (0.059 R)
• M7: 1,478,027 km (0.117 R)
• M8: 1,568,234 km (0.099 R)
• M9: 1,707,211 km (0.088 R)
• M10: 1,931,608 km (0.108 R)
• M11: 2,534,038 km (0.049 R)
• M12: 2,771,899 km (0.093 R)
• M13: 2,865,398 km (0.066 R)
• M14: 2,978,942 km (0.049 R)
• M15: 3,191,072 km (0.085 R)
• M16: 3,691,477 km (0.073 R)
• M17: 3,940,408 km (0.108 R)
• M18: 4,066,968 km (0.108 R)
• M19: 4,130,846 km (0.092 R)
• M20: 4,608,811 km (0.073 R)
• M21: 4,922,219 km (0.041 R)
• M22: 5,104,429 km (0.056 R)
• M23: 5,475,581 km (0.117 R)
• M24: 5,855,560 km (0.116 R)
• M25: 6,194,997 km (0.119 R)
• M26: 6,969,316 km (0.116 R)
• M27: 7,045,910 km (0.085 R)
• M28: 7,225,727 km (0.027 R)
• M29: 7,303,218 km (0.111 R)
• M30: 7,407,039 km (0.099 R)
• M31: 7,616,028 km (0.056 R)
• M32: 7,800,482 km (0.088 R)
• M33: 7,933,175 km (0.104 R)
• M34: 8,444,351 km (0.109 R)
• M35: 9,272,974 km (0.069 R)
• M36: 9,441,870 km (0.096 R)
• M37: 9,498,268 km (0.08 R)
• M38: 9,554,966 km (0.083 R)
• M39: 9,897,096 km (0.092 R)
• M40: 9,954,542 km (0.108 R)
• M41: 10,011,987 km (0.061 R)
• M42: 10,359,503 km (0.088 R)
• M43: 10,417,846 km (0.091 R)
• M44: 10,710,908 km (0.069 R)
• M45: 11,365,399 km (0.068 R)
• M46: 11,546,113 km (0.098 R)
• M47: 11,667,288 km (0.026 R)
• M48: 11,910,534 km (0.105 R)
• M49: 12,309,511 km (0.118 R)
• M50: 12,650,594 km (0.042 R)
• M51: 12,869,306 km (0.076 R)
• M52: 13,342,185 km (0.03 R)
• M53: 13,501,058 km (0.096 R)
• M54: 14,467,311 km (0.118 R)
• M55: 14,565,297 km (0.095 R)
• M56: 15,090,984 km (0.057 R)
• M57: 15,223,379 km (0.1 R)
• M58: 15,555,935 km (0.082 R)
• M59: 15,756,695 km (0.038 R)
• M60: 16,228,527 km (0.098 R)
• M61: 17,463,008 km (0.118 R)
• M62: 17,741,410 km (0.066 R)
• M63: 18,976,639 km (0.085 R)
• M64: 19,119,655 km (0.114 R)
• M65: 19,298,873 km (0.036 R)
• M66: 19,442,487 km (0.066 R)
• M67: 19,767,264 km (0.091 R)
• M68: 20,021,132 km (0.088 R)
• M69: 20,203,043 km (0.111 R)
• M70: 21,084,174 km (0.108 R)
• M71: 21,158,076 km (0.053 R)
• M72: 22,580,303 km (0.086 R)
• M73: 23,341,157 km (0.084 R)
• M74: 24,110,390 km (0.065 R)
• M75: 24,770,864 km (0.098 R)
• M76: 25,122,868 km (0.082 R)
• M77: 25,358,485 km (0.059 R)
• M78: 25,792,318 km (0.117 R)
• M79: 25,911,099 km (0.06 R)
• M80: 26,268,489 km (0.099 R)
• M81: 26,507,696 km (0.117 R)
• M82: 26,667,466 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.8

Radius: 11.5

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.22 AU - 11.16 AU

Year: 10505 Days

Day: 8.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 59,213,518 km

• M1: 175,329 km (0.09 R)
• M2: 287,527 km (0.054 R)
• M3: 473,776 km (0.054 R)
• M4: 705,204 km (0.069 R)
• M5: 816,206 km (0.073 R)
• M6: 1,344,735 km (0.083 R)
• M7: 2,639,804 km (0.11 R)
• M8: 3,157,562 km (0.115 R)
• M9: 3,315,986 km (0.085 R)
• M10: 3,542,178 km (0.114 R)
• M11: 4,181,709 km (0.061 R)
• M12: 4,320,985 km (0.108 R)
• M13: 4,568,420 km (0.106 R)
• M14: 4,966,799 km (0.088 R)
• M15: 5,077,352 km (0.093 R)
• M16: 5,226,202 km (0.081 R)
• M17: 6,109,577 km (0.107 R)
• M18: 6,347,737 km (0.075 R)
• M19: 9,162,720 km (0.048 R)
• M20: 9,849,823 km (0.112 R)
• M21: 9,942,723 km (0.092 R)
• M22: 10,506,258 km (0.094 R)
• M23: 10,696,397 km (0.091 R)
• M24: 10,935,754 km (0.118 R)
• M25: 11,225,226 km (0.115 R)
• M26: 11,468,472 km (0.104 R)
• M27: 11,615,227 km (0.069 R)
• M28: 12,508,925 km (0.083 R)
• M29: 12,660,019 km (0.071 R)
• M30: 12,760,998 km (0.048 R)
• M31: 13,270,528 km (0.115 R)
• M32: 13,527,687 km (0.104 R)
• M33: 14,309,336 km (0.038 R)
• M34: 14,891,870 km (0.118 R)
• M35: 16,079,976 km (0.066 R)
• M36: 17,242,501 km (0.098 R)
• M37: 17,410,799 km (0.087 R)
• M38: 18,203,368 km (0.11 R)
• M39: 19,123,395 km (0.1 R)
• M40: 19,706,228 km (0.112 R)
• M41: 20,117,772 km (0.063 R)
• M42: 20,354,137 km (0.041 R)
• M43: 20,829,559 km (0.114 R)
• M44: 21,068,766 km (0.094 R)
• M45: 21,369,009 km (0.099 R)
• M46: 21,973,683 km (0.101 R)
• M47: 24,511,312 km (0.086 R)
• M48: 25,144,261 km (0.058 R)
• M49: 25,399,026 km (0.103 R)
• M50: 26,490,941 km (0.09 R)
• M51: 26,880,045 km (0.078 R)
• M52: 27,663,788 km (0.08 R)
• M53: 28,720,547 km (0.07 R)
• M54: 29,053,402 km (0.064 R)
• M55: 29,521,644 km (0.046 R)
• M56: 29,857,641 km (0.082 R)
• M57: 30,330,220 km (0.111 R)
• M58: 31,556,773 km (0.114 R)
• M59: 32,176,108 km (0.086 R)
• M60: 32,452,565 km (0.115 R)
• M61: 35,261,116 km (0.099 R)
• M62: 35,403,682 km (0.025 R)
• M63: 35,546,249 km (0.077 R)
• M64: 36,334,331 km (0.105 R)
• M65: 36,766,669 km (0.12 R)
• M66: 37,563,577 km (0.073 R)
• M67: 37,781,840 km (0.092 R)
• M68: 39,469,753 km (0.12 R)
• M69: 40,583,808 km (0.078 R)
• M70: 41,257,298 km (0.079 R)
• M71: 41,407,344 km (0.117 R)
• M72: 42,690,894 km (0.12 R)
• M73: 43,147,018 km (0.061 R)
• M74: 44,217,690 km (0.081 R)
• M75: 45,065,012 km (0.111 R)
• M76: 45,297,038 km (0.111 R)
• M77: 45,607,005 km (0.111 R)
• M78: 45,839,929 km (0.069 R)
• M79: 46,541,244 km (0.119 R)
• M80: 46,854,053 km (0.098 R)
• M81: 46,932,293 km (0.106 R)
• M82: 47,010,682 km (0.108 R)
• M83: 47,403,077 km (0.054 R)
• M84: 48,112,171 km (0.112 R)
• M85: 49,461,095 km (0.046 R)
• M86: 50,340,581 km (0.065 R)
• M87: 50,661,618 km (0.106 R)
• M88: 52,846,794 km (0.112 R)
• M89: 54,074,095 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.8

Radius: 13

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 8.73 AU - 13.85 AU

Year: 13211 Days

Day: 7.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 59,213,518 km

• M1: 218,114 km (0.049 R)
• M2: 309,668 km (0.077 R)
• M3: 547,678 km (0.061 R)
• M4: 737,518 km (0.084 R)
• M5: 910,602 km (0.112 R)
• M6: 1,687,614 km (0.108 R)
• M7: 1,895,405 km (0.06 R)
• M8: 2,996,146 km (0.082 R)
• M9: 3,217,701 km (0.075 R)
• M10: 3,812,502 km (0.073 R)
• M11: 3,983,941 km (0.094 R)
• M12: 4,990,735 km (0.082 R)
• M13: 5,254,326 km (0.099 R)
• M14: 5,874,409 km (0.106 R)
• M15: 6,153,110 km (0.053 R)
• M16: 6,723,377 km (0.06 R)
• M17: 8,002,439 km (0.119 R)
• M18: 9,774,725 km (0.079 R)
• M19: 10,200,630 km (0.088 R)
• M20: 10,729,309 km (0.094 R)
• M21: 11,119,460 km (0.097 R)
• M22: 11,266,964 km (0.079 R)
• M23: 11,613,731 km (0.118 R)
• M24: 12,521,641 km (0.089 R)
• M25: 12,623,816 km (0.07 R)
• M26: 12,932,437 km (0.119 R)
• M27: 13,087,719 km (0.07 R)
• M28: 13,191,540 km (0.086 R)
• M29: 13,767,492 km (0.075 R)
• M30: 14,673,756 km (0.109 R)
• M31: 14,998,234 km (0.116 R)
• M32: 15,270,352 km (0.096 R)
• M33: 15,599,318 km (0.106 R)
• M34: 16,431,681 km (0.064 R)
• M35: 16,768,575 km (0.11 R)
• M36: 16,881,521 km (0.075 R)
• M37: 17,221,557 km (0.034 R)
• M38: 17,621,133 km (0.068 R)
• M39: 17,735,875 km (0.045 R)
• M40: 18,255,279 km (0.092 R)
• M41: 18,487,754 km (0.057 R)
• M42: 19,073,130 km (0.116 R)
• M43: 19,605,399 km (0.111 R)
• M44: 20,202,295 km (0.099 R)
• M45: 20,684,299 km (0.06 R)
• M46: 22,029,184 km (0.083 R)
• M47: 22,214,685 km (0.038 R)
• M48: 23,087,589 km (0.073 R)
• M49: 23,528,304 km (0.073 R)
• M50: 24,995,710 km (0.079 R)
• M51: 25,838,245 km (0.082 R)
• M52: 26,756,028 km (0.088 R)
• M53: 27,020,218 km (0.114 R)
• M54: 27,351,577 km (0.079 R)
• M55: 27,484,570 km (0.038 R)
• M56: 28,354,032 km (0.071 R)
• M57: 29,572,806 km (0.047 R)
• M58: 30,188,701 km (0.045 R)
• M59: 30,601,591 km (0.117 R)
• M60: 30,947,012 km (0.081 R)
• M61: 31,224,367 km (0.12 R)
• M62: 31,781,619 km (0.114 R)
• M63: 32,482,634 km (0.054 R)
• M64: 35,265,454 km (0.105 R)
• M65: 35,845,595 km (0.099 R)
• M66: 36,941,997 km (0.1 R)
• M67: 38,868,519 km (0.105 R)
• M68: 39,919,294 km (0.116 R)
• M69: 42,048,969 km (0.045 R)
• M70: 42,972,886 km (0.111 R)
• M71: 45,311,998 km (0.113 R)
• M72: 46,655,836 km (0.082 R)
• M73: 48,414,209 km (0.095 R)
• M74: 48,816,777 km (0.116 R)
• M75: 50,683,459 km (0.057 R)
• M76: 50,846,820 km (0.12 R)
• M77: 51,092,310 km (0.113 R)
• M78: 51,584,338 km (0.111 R)
• M79: 51,666,467 km (0.081 R)
• M80: 53,818,133 km (0.118 R)
• M81: 55,408,957 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.7

Radius: 5

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 12.99 AU - 14.95 AU

Year: 18184 Days

Day: 22.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 59,213,518 km

• M1: 101,278 km (0.113 R)
• M2: 144,063 km (0.097 R)
• M3: 238,309 km (0.062 R)
• M4: 396,584 km (0.097 R)
• M5: 585,526 km (0.08 R)
• M6: 663,317 km (0.051 R)
• M7: 772,523 km (0.118 R)
• M8: 829,221 km (0.108 R)
• M9: 962,363 km (0.092 R)
• M10: 1,182,870 km (0.043 R)
• M11: 1,706,613 km (0.085 R)
• M12: 1,992,494 km (0.112 R)
• M13: 2,110,976 km (0.093 R)
• M14: 2,759,782 km (0.064 R)
• M15: 2,803,614 km (0.106 R)
• M16: 3,560,429 km (0.106 R)
• M17: 3,608,301 km (0.087 R)
• M18: 3,680,407 km (0.064 R)
• M19: 3,752,962 km (0.11 R)
• M20: 3,948,935 km (0.1 R)
• M21: 4,249,178 km (0.058 R)
• M22: 4,739,410 km (0.093 R)
• M23: 4,792,069 km (0.075 R)
• M24: 4,871,355 km (0.114 R)
• M25: 5,058,203 km (0.083 R)
• M26: 5,138,986 km (0.046 R)
• M27: 5,193,140 km (0.098 R)
• M28: 5,356,651 km (0.105 R)
• M29: 6,141,591 km (0.046 R)
• M30: 6,665,034 km (0.081 R)
• M31: 7,021,825 km (0.074 R)
• M32: 7,324,013 km (0.093 R)
• M33: 7,692,173 km (0.086 R)
• M34: 8,319,138 km (0.104 R)
• M35: 8,638,679 km (0.082 R)
• M36: 8,735,319 km (0.097 R)
• M37: 8,767,632 km (0.086 R)
• M38: 8,864,871 km (0.076 R)
• M39: 9,855,807 km (0.112 R)
• M40: 10,024,404 km (0.068 R)
• M41: 10,227,857 km (0.088 R)
• M42: 10,432,806 km (0.057 R)
• M43: 10,812,037 km (0.063 R)
• M44: 10,881,450 km (0.06 R)
• M45: 11,055,731 km (0.108 R)
• M46: 11,230,761 km (0.112 R)
• M47: 11,406,838 km (0.089 R)
• M48: 12,337,037 km (0.1 R)
• M49: 12,628,155 km (0.118 R)
• M50: 12,847,914 km (0.082 R)
• M51: 13,890,461 km (0.092 R)
• M52: 14,921,041 km (0.117 R)
• M53: 14,959,637 km (0.081 R)
• M54: 15,270,053 km (0.084 R)
• M55: 15,543,368 km (0.057 R)
• M56: 15,582,563 km (0.12 R)
• M57: 15,976,155 km (0.108 R)
• M58: 16,213,866 km (0.093 R)
• M59: 16,333,096 km (0.072 R)
• M60: 16,612,694 km (0.051 R)
• M61: 16,773,063 km (0.087 R)
• M62: 16,813,305 km (0.072 R)
• M63: 16,853,397 km (0.065 R)
• M64: 16,934,030 km (0.047 R)
• M65: 17,460,615 km (0.112 R)
• M66: 17,664,517 km (0.119 R)
• M67: 17,746,347 km (0.062 R)
• M68: 17,828,326 km (0.066 R)
• M69: 18,157,292 km (0.066 R)
• M70: 20,215,759 km (0.077 R)
• M71: 20,301,329 km (0.118 R)
• M72: 20,903,759 km (0.095 R)
• M73: 20,946,993 km (0.112 R)
• M74: 21,207,144 km (0.109 R)
• M75: 21,337,593 km (0.089 R)
• M76: 21,730,587 km (0.104 R)
• M77: 22,346,780 km (0.115 R)
• M78: 22,879,498 km (0.053 R)
• M79: 23,281,767 km (0.092 R)
• M80: 23,821,666 km (0.116 R)
• M81: 26,022,550 km (0.106 R)
• M82: 26,958,583 km (0.09 R)
• M83: 27,005,557 km (0.101 R)
• M84: 27,052,681 km (0.062 R)
• M85: 28,478,947 km (0.055 R)
• M86: 28,574,839 km (0.117 R)
• M87: 28,959,754 km (0.037 R)
• M88: 29,056,245 km (0.111 R)
• M89: 29,346,315 km (0.076 R)
• M90: 30,026,985 km (0.065 R)
• M91: 32,349,792 km (0.088 R)
• M92: 32,550,103 km (0.094 R)
• M93: 33,254,559 km (0.107 R)
• M94: 33,456,666 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.4

Radius: 7.9

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 12.63 AU - 19.11 AU

Year: 22017 Days

Day: 23.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 59,213,518 km

• M1: 331,958 km (0.081 R)
• M2: 390,151 km (0.066 R)
• M3: 643,869 km (0.107 R)
• M4: 739,462 km (0.049 R)
• M5: 945,459 km (0.045 R)
• M6: 1,264,252 km (0.057 R)
• M7: 1,410,858 km (0.104 R)
• M8: 1,995,785 km (0.067 R)
• M9: 2,284,359 km (0.087 R)
• M10: 2,494,395 km (0.051 R)
• M11: 3,063,166 km (0.12 R)
• M12: 3,464,088 km (0.034 R)
• M13: 3,532,604 km (0.063 R)
• M14: 3,740,695 km (0.105 R)
• M15: 4,764,094 km (0.099 R)
• M16: 5,465,259 km (0.099 R)
• M17: 6,491,800 km (0.101 R)
• M18: 6,789,799 km (0.115 R)
• M19: 7,710,424 km (0.074 R)
• M20: 8,299,839 km (0.101 R)
• M21: 8,856,942 km (0.098 R)
• M22: 9,045,286 km (0.083 R)
• M23: 9,618,245 km (0.099 R)
• M24: 9,811,825 km (0.117 R)
• M25: 10,301,609 km (0.064 R)
• M26: 10,499,676 km (0.075 R)
• M27: 10,849,436 km (0.029 R)
• M28: 11,203,085 km (0.097 R)
• M29: 11,253,799 km (0.03 R)
• M30: 11,355,675 km (0.11 R)
• M31: 12,234,114 km (0.046 R)
• M32: 12,602,125 km (0.099 R)
• M33: 13,456,777 km (0.074 R)
• M34: 15,053,286 km (0.115 R)
• M35: 15,902,403 km (0.111 R)
• M36: 16,592,797 km (0.109 R)
• M37: 17,351,857 km (0.083 R)
• M38: 19,267,757 km (0.107 R)
• M39: 19,512,050 km (0.1 R)
• M40: 19,941,845 km (0.088 R)
• M41: 21,376,040 km (0.064 R)
• M42: 21,946,157 km (0.111 R)
• M43: 24,672,578 km (0.111 R)
• M44: 24,937,815 km (0.081 R)
• M45: 31,077,462 km (0.091 R)
• M46: 32,011,401 km (0.082 R)
• M47: 33,246,631 km (0.112 R)
• M48: 34,128,061 km (0.087 R)
• M49: 34,497,419 km (0.114 R)
• M50: 34,794,071 km (0.09 R)
• M51: 38,341,186 km (0.11 R)
• M52: 39,497,428 km (0.057 R)
• M53: 39,574,920 km (0.106 R)
• M54: 40,743,130 km (0.113 R)
• M55: 41,685,895 km (0.08 R)
• M56: 42,239,108 km (0.114 R)
• M57: 44,154,560 km (0.113 R)
• M58: 44,879,960 km (0.03 R)
• M59: 45,934,924 km (0.072 R)
• M60: 46,915,987 km (0.108 R)
• M61: 50,571,710 km (0.116 R)
• M62: 51,077,351 km (0.117 R)
• M63: 51,838,804 km (0.046 R)
• M64: 52,774,688 km (0.103 R)
• M65: 55,441,868 km (0.108 R)
• M66: 57,536,687 km (0.036 R)
• M67: 59,124,818 km (0.114 R)

Kuiper Belt

Range: 31.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 14,555 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit