🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.69 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.2

Radius: 10.9

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.23 AU - 1.53 AU

Year: 1100 Days

Day: 7.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 41,443,086 km

• M1: 139,425 km (0.096 R)
• M2: 257,308 km (0.103 R)
• M3: 439,369 km (0.114 R)
• M4: 516,711 km (0.061 R)
• M5: 616,792 km (0.118 R)
• M6: 1,065,885 km (0.115 R)
• M7: 1,161,029 km (0.043 R)
• M8: 1,705,715 km (0.075 R)
• M9: 1,809,685 km (0.106 R)
• M10: 2,106,488 km (0.078 R)
• M11: 2,265,660 km (0.082 R)
• M12: 2,428,871 km (0.093 R)
• M13: 2,506,961 km (0.054 R)
• M14: 2,635,914 km (0.059 R)
• M15: 2,716,398 km (0.107 R)
• M16: 2,973,108 km (0.055 R)
• M17: 3,184,340 km (0.067 R)
• M18: 3,270,209 km (0.113 R)
• M19: 3,455,262 km (0.11 R)
• M20: 3,543,525 km (0.063 R)
• M21: 3,643,905 km (0.096 R)
• M22: 3,756,403 km (0.097 R)
• M23: 3,858,727 km (0.072 R)
• M24: 4,008,176 km (0.107 R)
• M25: 4,136,232 km (0.09 R)
• M26: 4,384,265 km (0.104 R)
• M27: 4,492,125 km (0.08 R)
• M28: 4,576,648 km (0.102 R)
• M29: 4,661,769 km (0.105 R)
• M30: 4,808,824 km (0.073 R)
• M31: 4,944,958 km (0.052 R)
• M32: 5,069,872 km (0.104 R)
• M33: 5,221,265 km (0.103 R)
• M34: 5,386,870 km (0.112 R)
• M35: 5,541,255 km (0.111 R)
• M36: 5,645,076 km (0.106 R)
• M37: 5,736,330 km (0.089 R)
• M38: 5,828,183 km (0.105 R)
• M39: 6,066,792 km (0.118 R)
• M40: 6,213,996 km (0.087 R)
• M41: 6,430,464 km (0.119 R)
• M42: 6,525,908 km (0.119 R)
• M43: 6,621,950 km (0.089 R)
• M44: 6,843,055 km (0.112 R)
• M45: 7,038,580 km (0.081 R)
• M46: 7,321,021 km (0.098 R)
• M47: 7,477,949 km (0.062 R)
• M48: 7,621,712 km (0.12 R)
• M49: 7,722,840 km (0.079 R)
• M50: 7,911,783 km (0.091 R)
• M51: 8,220,403 km (0.105 R)
• M52: 8,668,149 km (0.096 R)
• M53: 9,323,687 km (0.109 R)
• M54: 9,618,545 km (0.11 R)
• M55: 9,790,582 km (0.103 R)
• M56: 10,169,663 km (0.032 R)
• M57: 10,328,985 km (0.088 R)
• M58: 10,812,037 km (0.041 R)
• M59: 10,893,268 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.1

Radius: 11.2

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.33 AU - 2.33 AU

Year: 2412 Days

Day: 6.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 41,443,086 km

• M1: 159,920 km (0.054 R)
• M2: 298,149 km (0.096 R)
• M3: 562,787 km (0.099 R)
• M4: 733,478 km (0.041 R)
• M5: 912,098 km (0.026 R)
• M6: 996,322 km (0.068 R)
• M7: 1,094,608 km (0.072 R)
• M8: 1,266,047 km (0.115 R)
• M9: 1,533,827 km (0.065 R)
• M10: 1,766,601 km (0.092 R)
• M11: 2,053,081 km (0.076 R)
• M12: 2,209,112 km (0.104 R)
• M13: 2,369,331 km (0.068 R)
• M14: 2,609,136 km (0.088 R)
• M15: 2,778,780 km (0.096 R)
• M16: 2,904,443 km (0.116 R)
• M17: 2,983,879 km (0.067 R)
• M18: 3,194,214 km (0.108 R)
• M19: 3,359,370 km (0.094 R)
• M20: 3,544,273 km (0.079 R)
• M21: 3,663,652 km (0.099 R)
• M22: 3,994,862 km (0.07 R)
• M23: 4,155,081 km (0.102 R)
• M24: 4,537,453 km (0.086 R)
• M25: 4,630,054 km (0.098 R)
• M26: 4,723,553 km (0.109 R)
• M27: 4,798,651 km (0.108 R)
• M28: 4,874,198 km (0.061 R)
• M29: 5,872,165 km (0.074 R)
• M30: 7,082,113 km (0.098 R)
• M31: 7,254,898 km (0.093 R)
• M32: 7,804,072 km (0.111 R)
• M33: 7,982,692 km (0.068 R)
• M34: 8,185,247 km (0.062 R)
• M35: 8,321,232 km (0.117 R)
• M36: 8,412,337 km (0.108 R)
• M37: 8,526,630 km (0.09 R)
• M38: 8,687,448 km (0.082 R)
• M39: 9,459,672 km (0.102 R)
• M40: 9,602,538 km (0.047 R)
• M41: 10,253,887 km (0.11 R)
• M42: 10,622,047 km (0.119 R)
• M43: 11,019,379 km (0.108 R)
• M44: 11,144,593 km (0.087 R)
• M45: 11,447,079 km (0.058 R)
• M46: 11,599,221 km (0.119 R)
• M47: 11,880,165 km (0.078 R)
• M48: 12,034,251 km (0.08 R)
• M49: 12,474,667 km (0.05 R)
• M50: 13,371,207 km (0.054 R)
• M51: 13,773,326 km (0.075 R)
• M52: 14,070,877 km (0.106 R)
• M53: 14,562,156 km (0.048 R)
• M54: 15,059,270 km (0.074 R)
• M55: 15,198,246 km (0.094 R)
• M56: 15,956,558 km (0.077 R)
• M57: 16,297,491 km (0.088 R)
• M58: 16,468,781 km (0.119 R)
• M59: 16,669,541 km (0.119 R)
• M60: 17,218,416 km (0.093 R)
• M61: 17,949,800 km (0.05 R)
• M62: 18,512,288 km (0.112 R)
• M63: 18,631,517 km (0.109 R)
• M64: 19,624,398 km (0.088 R)
• M65: 20,020,234 km (0.11 R)
• M66: 20,173,273 km (0.047 R)
• M67: 20,511,214 km (0.088 R)
• M68: 20,727,234 km (0.08 R)

Asteroid Belt

Center: 2.75 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 13.3

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.88 AU - 3.46 AU

Year: 3828 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 41,443,086 km

• M1: 168,298 km (0.116 R)
• M2: 271,670 km (0.036 R)
• M3: 400,174 km (0.071 R)
• M4: 500,554 km (0.108 R)
• M5: 659,727 km (0.091 R)
• M6: 856,298 km (0.059 R)
• M7: 1,024,745 km (0.062 R)
• M8: 1,320,650 km (0.116 R)
• M9: 1,418,188 km (0.047 R)
• M10: 1,667,567 km (0.116 R)
• M11: 2,379,953 km (0.116 R)
• M12: 2,720,288 km (0.062 R)
• M13: 2,960,841 km (0.099 R)
• M14: 3,164,294 km (0.097 R)
• M15: 3,554,445 km (0.094 R)
• M16: 4,056,047 km (0.03 R)
• M17: 4,480,307 km (0.11 R)
• M18: 4,664,162 km (0.106 R)
• M19: 4,816,453 km (0.085 R)
• M20: 4,901,873 km (0.1 R)
• M21: 5,442,371 km (0.053 R)
• M22: 5,531,232 km (0.115 R)
• M23: 5,710,749 km (0.068 R)
• M24: 5,892,211 km (0.104 R)
• M25: 6,001,867 km (0.12 R)
• M26: 6,130,820 km (0.078 R)
• M27: 6,223,571 km (0.053 R)
• M28: 6,391,569 km (0.109 R)
• M29: 6,542,214 km (0.065 R)
• M30: 6,675,057 km (0.11 R)
• M31: 6,827,796 km (0.089 R)
• M32: 6,923,988 km (0.105 R)
• M33: 7,156,613 km (0.066 R)
• M34: 7,431,274 km (0.078 R)
• M35: 8,585,272 km (0.119 R)
• M36: 8,772,569 km (0.042 R)
• M37: 9,024,492 km (0.073 R)
• M38: 9,449,649 km (0.064 R)
• M39: 9,859,696 km (0.112 R)
• M40: 10,165,624 km (0.093 R)
• M41: 10,275,579 km (0.102 R)
• M42: 10,363,841 km (0.11 R)
• M43: 10,697,295 km (0.12 R)
• M44: 10,989,160 km (0.101 R)
• M45: 12,276,151 km (0.097 R)
• M46: 12,581,779 km (0.033 R)
• M47: 12,771,021 km (0.072 R)
• M48: 13,829,276 km (0.094 R)
• M49: 14,270,141 km (0.117 R)
• M50: 14,467,760 km (0.117 R)
• M51: 14,715,793 km (0.099 R)
• M52: 15,040,570 km (0.081 R)
• M53: 15,393,023 km (0.082 R)
• M54: 15,544,864 km (0.085 R)
• M55: 15,646,292 km (0.097 R)
• M56: 16,157,168 km (0.07 R)
• M57: 16,363,165 km (0.066 R)
• M58: 16,673,580 km (0.114 R)
• M59: 16,907,701 km (0.115 R)
• M60: 17,775,668 km (0.098 R)
• M61: 17,881,882 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.8

Radius: 11.1

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.51 AU - 3.99 AU

Year: 3974 Days

Day: 12.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 41,443,086 km

• M1: 262,993 km (0.063 R)
• M2: 386,411 km (0.108 R)
• M3: 562,189 km (0.095 R)
• M4: 685,757 km (0.039 R)
• M5: 756,367 km (0.116 R)
• M6: 851,511 km (0.073 R)
• M7: 1,150,258 km (0.115 R)
• M8: 1,261,409 km (0.098 R)
• M9: 1,455,288 km (0.049 R)
• M10: 1,603,839 km (0.1 R)
• M11: 2,140,596 km (0.098 R)
• M12: 2,780,576 km (0.104 R)
• M13: 2,898,459 km (0.101 R)
• M14: 3,387,045 km (0.114 R)
• M15: 3,567,760 km (0.066 R)
• M16: 3,863,814 km (0.044 R)
• M17: 5,023,347 km (0.096 R)
• M18: 5,250,885 km (0.049 R)
• M19: 5,867,079 km (0.108 R)
• M20: 6,261,120 km (0.075 R)
• M21: 6,372,121 km (0.094 R)
• M22: 6,618,509 km (0.086 R)
• M23: 6,891,076 km (0.06 R)
• M24: 6,982,780 km (0.087 R)
• M25: 7,097,970 km (0.103 R)
• M26: 7,470,768 km (0.046 R)
• M27: 7,921,806 km (0.037 R)
• M28: 8,235,512 km (0.102 R)
• M29: 8,381,669 km (0.066 R)
• M30: 8,726,193 km (0.093 R)
• M31: 9,100,487 km (0.09 R)
• M32: 9,201,167 km (0.107 R)
• M33: 9,454,585 km (0.109 R)
• M34: 9,916,394 km (0.113 R)
• M35: 10,098,155 km (0.12 R)
• M36: 10,333,323 km (0.051 R)
• M37: 10,649,573 km (0.114 R)
• M38: 11,400,255 km (0.088 R)
• M39: 12,002,088 km (0.076 R)
• M40: 12,112,640 km (0.09 R)
• M41: 12,195,817 km (0.105 R)
• M42: 12,418,418 km (0.117 R)
• M43: 12,502,193 km (0.057 R)
• M44: 13,322,139 km (0.105 R)
• M45: 13,839,897 km (0.072 R)
• M46: 13,926,814 km (0.07 R)
• M47: 14,247,252 km (0.08 R)
• M48: 14,364,238 km (0.093 R)
• M49: 14,628,877 km (0.093 R)
• M50: 14,865,540 km (0.084 R)
• M51: 15,192,861 km (0.088 R)
• M52: 15,282,619 km (0.064 R)
• M53: 15,462,586 km (0.067 R)
• M54: 15,885,050 km (0.029 R)
• M55: 16,067,410 km (0.059 R)
• M56: 16,342,071 km (0.105 R)
• M57: 17,175,631 km (0.094 R)
• M58: 17,331,512 km (0.096 R)
• M59: 17,487,841 km (0.07 R)
• M60: 17,833,413 km (0.1 R)
• M61: 18,054,668 km (0.109 R)
• M62: 18,181,377 km (0.111 R)
• M63: 18,467,708 km (0.106 R)
• M64: 18,723,520 km (0.107 R)
• M65: 18,916,052 km (0.066 R)
• M66: 19,238,436 km (0.064 R)
• M67: 19,367,988 km (0.117 R)
• M68: 19,595,376 km (0.065 R)
• M69: 19,693,064 km (0.065 R)
• M70: 20,118,221 km (0.117 R)
• M71: 20,447,336 km (0.099 R)
• M72: 20,546,520 km (0.115 R)
• M73: 20,645,703 km (0.108 R)
• M74: 21,211,183 km (0.08 R)
• M75: 21,479,113 km (0.115 R)
• M76: 21,916,836 km (0.082 R)
• M77: 22,732,593 km (0.116 R)
• M78: 23,006,806 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.5

Radius: 14.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.8 AU - 4.34 AU

Year: 5569 Days

Day: 7 Hours

Environment

Temp: -218 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 41,443,086 km

• M1: 303,085 km (0.096 R)
• M2: 567,425 km (0.094 R)
• M3: 1,025,643 km (0.113 R)
• M4: 1,443,919 km (0.064 R)
• M5: 1,573,321 km (0.105 R)
• M6: 2,336,868 km (0.119 R)
• M7: 2,549,447 km (0.076 R)
• M8: 2,648,182 km (0.108 R)
• M9: 2,849,839 km (0.049 R)
• M10: 3,035,640 km (0.083 R)
• M11: 3,289,956 km (0.034 R)
• M12: 3,485,331 km (0.083 R)
• M13: 4,141,168 km (0.087 R)
• M14: 4,234,667 km (0.06 R)
• M15: 4,543,736 km (0.118 R)
• M16: 4,786,384 km (0.079 R)
• M17: 5,284,844 km (0.063 R)
• M18: 5,386,571 km (0.115 R)
• M19: 5,774,029 km (0.081 R)
• M20: 6,010,842 km (0.069 R)
• M21: 6,576,023 km (0.094 R)
• M22: 6,713,055 km (0.104 R)
• M23: 7,130,283 km (0.108 R)
• M24: 7,242,931 km (0.109 R)
• M25: 7,555,889 km (0.095 R)
• M26: 7,670,780 km (0.112 R)
• M27: 8,195,271 km (0.086 R)
• M28: 8,461,854 km (0.101 R)
• M29: 8,942,961 km (0.086 R)
• M30: 9,034,215 km (0.059 R)
• M31: 9,494,977 km (0.076 R)
• M32: 9,775,174 km (0.099 R)
• M33: 10,279,917 km (0.061 R)
• M34: 10,761,024 km (0.119 R)
• M35: 11,118,563 km (0.102 R)
• M36: 11,513,052 km (0.116 R)
• M37: 11,678,807 km (0.056 R)
• M38: 11,945,689 km (0.112 R)
• M39: 12,214,517 km (0.098 R)
• M40: 12,587,614 km (0.109 R)
• M41: 12,929,894 km (0.027 R)
• M42: 13,729,045 km (0.118 R)
• M43: 14,046,193 km (0.115 R)
• M44: 14,903,688 km (0.104 R)
• M45: 15,011,997 km (0.074 R)
• M46: 15,375,220 km (0.093 R)
• M47: 15,557,879 km (0.105 R)
• M48: 16,969,934 km (0.065 R)
• M49: 17,196,574 km (0.103 R)
• M50: 18,267,845 km (0.04 R)
• M51: 18,577,812 km (0.084 R)
• M52: 18,967,813 km (0.107 R)
• M53: 19,085,397 km (0.085 R)
• M54: 19,242,475 km (0.095 R)
• M55: 19,439,495 km (0.119 R)
• M56: 19,676,758 km (0.101 R)
• M57: 20,958,362 km (0.116 R)
• M58: 21,120,377 km (0.072 R)
• M59: 21,691,093 km (0.092 R)
• M60: 21,978,321 km (0.1 R)
• M61: 22,143,028 km (0.088 R)
• M62: 22,349,473 km (0.09 R)
• M63: 22,806,046 km (0.053 R)
• M64: 23,223,723 km (0.114 R)
• M65: 23,433,459 km (0.116 R)
• M66: 23,812,690 km (0.089 R)
• M67: 24,577,285 km (0.072 R)
• M68: 25,479,360 km (0.071 R)
• M69: 25,912,894 km (0.076 R)
• M70: 26,348,673 km (0.052 R)
• M71: 26,699,181 km (0.114 R)
• M72: 26,830,977 km (0.109 R)
• M73: 27,360,403 km (0.04 R)
• M74: 27,848,840 km (0.065 R)
• M75: 28,384,850 km (0.098 R)
• M76: 29,059,686 km (0.056 R)
• M77: 29,421,862 km (0.114 R)
• M78: 30,287,884 km (0.075 R)
• M79: 30,931,305 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.1

Radius: 12.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.43 AU - 5.63 AU

Year: 8820 Days

Day: 14.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 41,443,086 km

• M1: 305,180 km (0.088 R)
• M2: 422,165 km (0.087 R)
• M3: 532,868 km (0.074 R)
• M4: 713,582 km (0.114 R)
• M5: 1,086,081 km (0.101 R)
• M6: 1,322,744 km (0.103 R)
• M7: 1,846,786 km (0.053 R)
• M8: 1,932,954 km (0.092 R)
• M9: 2,131,919 km (0.112 R)
• M10: 2,314,728 km (0.119 R)
• M11: 2,502,772 km (0.088 R)
• M12: 2,819,172 km (0.106 R)
• M13: 3,174,616 km (0.084 R)
• M14: 3,410,682 km (0.085 R)
• M15: 3,490,717 km (0.085 R)
• M16: 3,928,290 km (0.099 R)
• M17: 4,040,489 km (0.092 R)
• M18: 4,706,349 km (0.088 R)
• M19: 5,816,515 km (0.108 R)
• M20: 5,944,720 km (0.102 R)
• M21: 6,138,898 km (0.09 R)
• M22: 6,368,082 km (0.084 R)
• M23: 6,868,786 km (0.113 R)
• M24: 7,175,462 km (0.118 R)
• M25: 7,278,684 km (0.088 R)
• M26: 7,486,476 km (0.047 R)
• M27: 8,050,609 km (0.119 R)
• M28: 8,446,445 km (0.076 R)
• M29: 8,555,502 km (0.09 R)
• M30: 8,922,466 km (0.058 R)
• M31: 9,294,516 km (0.084 R)
• M32: 9,709,799 km (0.091 R)
• M33: 10,092,620 km (0.048 R)
• M34: 10,597,663 km (0.104 R)
• M35: 11,230,761 km (0.078 R)
• M36: 11,511,556 km (0.074 R)
• M37: 12,285,426 km (0.083 R)
• M38: 12,782,839 km (0.068 R)
• M39: 13,076,200 km (0.117 R)
• M40: 13,202,461 km (0.089 R)
• M41: 14,141,636 km (0.104 R)
• M42: 14,228,104 km (0.109 R)
• M43: 14,881,996 km (0.083 R)
• M44: 15,013,941 km (0.079 R)
• M45: 15,102,204 km (0.114 R)
• M46: 15,590,342 km (0.077 R)
• M47: 16,219,252 km (0.072 R)
• M48: 16,627,953 km (0.119 R)
• M49: 16,764,985 km (0.073 R)
• M50: 16,994,169 km (0.108 R)
• M51: 17,270,476 km (0.076 R)
• M52: 17,874,402 km (0.091 R)
• M53: 18,579,756 km (0.086 R)
• M54: 19,198,493 km (0.11 R)
• M55: 19,294,236 km (0.064 R)
• M56: 19,872,432 km (0.112 R)
• M57: 20,358,475 km (0.119 R)
• M58: 20,651,986 km (0.087 R)
• M59: 20,799,340 km (0.111 R)
• M60: 21,640,678 km (0.105 R)
• M61: 23,254,540 km (0.072 R)
• M62: 23,510,203 km (0.066 R)
• M63: 24,698,160 km (0.097 R)
• M64: 24,959,058 km (0.101 R)
• M65: 25,483,399 km (0.088 R)
• M66: 27,132,267 km (0.113 R)
• M67: 27,888,334 km (0.112 R)
• M68: 28,432,422 km (0.103 R)
• M69: 29,200,308 km (0.037 R)
• M70: 29,310,412 km (0.087 R)
• M71: 31,544,357 km (0.116 R)
• M72: 32,111,333 km (0.105 R)
• M73: 32,396,017 km (0.03 R)
• M74: 32,796,042 km (0.054 R)
• M75: 33,428,093 km (0.082 R)
• M76: 33,716,667 km (0.108 R)
• M77: 33,890,201 km (0.087 R)
• M78: 34,645,820 km (0.111 R)
• M79: 34,937,835 km (0.103 R)
• M80: 35,818,966 km (0.115 R)
• M81: 37,184,346 km (0.119 R)
• M82: 37,483,392 km (0.037 R)
• M83: 39,111,915 km (0.114 R)
• M84: 39,233,538 km (0.118 R)
• M85: 39,477,083 km (0.09 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 18,209 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit