🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.6

Radius: 12.1

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.63 AU - 0.73 AU

Year: 387 Days

Day: 13.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 30,236,586 km

• M1: 150,645 km (0.119 R)
• M2: 246,238 km (0.105 R)
• M3: 347,965 km (0.087 R)
• M4: 441,164 km (0.108 R)
• M5: 527,482 km (0.117 R)
• M6: 605,572 km (0.083 R)
• M7: 721,211 km (0.099 R)
• M8: 797,207 km (0.108 R)
• M9: 876,344 km (0.096 R)
• M10: 972,536 km (0.053 R)
• M11: 1,062,893 km (0.055 R)
• M12: 1,166,265 km (0.111 R)
• M13: 1,247,497 km (0.092 R)
• M14: 1,351,916 km (0.091 R)
• M15: 1,432,250 km (0.119 R)
• M16: 1,536,520 km (0.102 R)
• M17: 1,637,797 km (0.098 R)
• M18: 1,741,469 km (0.088 R)
• M19: 1,907,223 km (0.119 R)
• M20: 1,998,179 km (0.114 R)
• M21: 2,115,613 km (0.119 R)
• M22: 2,273,738 km (0.064 R)
• M23: 2,429,469 km (0.047 R)
• M24: 2,561,864 km (0.095 R)
• M25: 2,676,456 km (0.12 R)
• M26: 2,792,843 km (0.026 R)
• M27: 3,066,158 km (0.091 R)
• M28: 3,159,208 km (0.066 R)
• M29: 3,407,241 km (0.094 R)
• M30: 3,563,720 km (0.106 R)
• M31: 3,745,482 km (0.064 R)
• M32: 3,945,793 km (0.089 R)
• M33: 4,070,857 km (0.032 R)
• M34: 4,333,252 km (0.067 R)
• M35: 4,551,964 km (0.082 R)
• M36: 4,840,987 km (0.115 R)
• M37: 4,916,384 km (0.071 R)
• M38: 5,000,458 km (0.066 R)
• M39: 5,195,983 km (0.118 R)
• M40: 5,316,110 km (0.112 R)
• M41: 5,568,033 km (0.092 R)
• M42: 5,699,978 km (0.074 R)
• M43: 6,101,948 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.1

Radius: 10.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.7 AU - 0.76 AU

Year: 431 Days

Day: 5 Hours

Environment

Temp: -168 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 30,236,586 km

• M1: 129,701 km (0.072 R)
• M2: 197,619 km (0.1 R)
• M3: 264,489 km (0.036 R)
• M4: 329,115 km (0.111 R)
• M5: 401,521 km (0.103 R)
• M6: 502,649 km (0.107 R)
• M7: 572,661 km (0.074 R)
• M8: 652,696 km (0.08 R)
• M9: 717,920 km (0.119 R)
• M10: 869,463 km (0.1 R)
• M11: 942,317 km (0.033 R)
• M12: 1,006,644 km (0.117 R)
• M13: 1,158,935 km (0.094 R)
• M14: 1,244,056 km (0.082 R)
• M15: 1,311,225 km (0.086 R)
• M16: 1,379,741 km (0.106 R)
• M17: 1,461,870 km (0.119 R)
• M18: 1,537,417 km (0.087 R)
• M19: 1,640,191 km (0.051 R)
• M20: 1,749,846 km (0.037 R)
• M21: 1,821,204 km (0.117 R)
• M22: 1,916,648 km (0.056 R)
• M23: 2,060,411 km (0.099 R)
• M24: 2,164,831 km (0.09 R)
• M25: 2,300,217 km (0.07 R)
• M26: 2,378,905 km (0.095 R)
• M27: 2,651,173 km (0.106 R)
• M28: 2,765,017 km (0.06 R)
• M29: 3,056,883 km (0.071 R)
• M30: 3,138,264 km (0.081 R)
• M31: 3,231,314 km (0.077 R)
• M32: 3,308,806 km (0.106 R)
• M33: 3,392,431 km (0.035 R)
• M34: 3,539,037 km (0.116 R)
• M35: 3,607,403 km (0.036 R)
• M36: 3,687,737 km (0.112 R)
• M37: 3,751,316 km (0.092 R)
• M38: 3,826,863 km (0.098 R)
• M39: 3,938,314 km (0.057 R)
• M40: 4,033,009 km (0.097 R)
• M41: 4,116,485 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.2

Radius: 11

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.74 AU - 1 AU

Year: 560 Days

Day: 11.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 30,236,586 km

• M1: 158,873 km (0.1 R)
• M2: 299,196 km (0.046 R)
• M3: 432,188 km (0.109 R)
• M4: 543,040 km (0.103 R)
• M5: 637,137 km (0.096 R)
• M6: 797,506 km (0.057 R)
• M7: 883,226 km (0.074 R)
• M8: 964,009 km (0.082 R)
• M9: 1,073,066 km (0.076 R)
• M10: 1,155,494 km (0.084 R)
• M11: 1,226,852 km (0.103 R)
• M12: 1,327,382 km (0.12 R)
• M13: 1,537,268 km (0.07 R)
• M14: 1,666,371 km (0.05 R)
• M15: 1,737,579 km (0.116 R)
• M16: 1,846,337 km (0.062 R)
• M17: 1,930,710 km (0.082 R)
• M18: 2,027,201 km (0.107 R)
• M19: 2,158,697 km (0.116 R)
• M20: 2,264,613 km (0.091 R)
• M21: 2,424,233 km (0.09 R)
• M22: 2,563,958 km (0.114 R)
• M23: 2,640,851 km (0.078 R)
• M24: 2,724,476 km (0.108 R)
• M25: 2,797,031 km (0.112 R)
• M26: 2,906,836 km (0.108 R)
• M27: 3,036,986 km (0.082 R)
• M28: 3,112,234 km (0.11 R)
• M29: 3,219,795 km (0.106 R)
• M30: 3,367,448 km (0.036 R)
• M31: 3,464,986 km (0.109 R)
• M32: 3,576,735 km (0.081 R)
• M33: 3,709,728 km (0.039 R)
• M34: 3,790,361 km (0.105 R)
• M35: 4,021,789 km (0.058 R)
• M36: 4,160,317 km (0.088 R)
• M37: 4,230,029 km (0.088 R)
• M38: 4,321,434 km (0.026 R)
• M39: 4,613,898 km (0.106 R)
• M40: 4,686,303 km (0.068 R)
• M41: 4,957,225 km (0.054 R)
• M42: 5,031,276 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774

Radius: 12.5

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.79 AU - 0.99 AU

Year: 580 Days

Day: 10.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 30,236,586 km

• M1: 156,180 km (0.104 R)
• M2: 260,300 km (0.049 R)
• M3: 359,783 km (0.076 R)
• M4: 479,012 km (0.051 R)
• M5: 589,266 km (0.079 R)
• M6: 691,441 km (0.119 R)
• M7: 895,493 km (0.055 R)
• M8: 1,098,198 km (0.084 R)
• M9: 1,176,886 km (0.099 R)
• M10: 1,462,170 km (0.108 R)
• M11: 1,600,548 km (0.067 R)
• M12: 1,763,310 km (0.111 R)
• M13: 2,063,403 km (0.052 R)
• M14: 2,141,194 km (0.066 R)
• M15: 2,270,447 km (0.084 R)
• M16: 2,424,682 km (0.113 R)
• M17: 2,575,028 km (0.042 R)
• M18: 2,767,261 km (0.083 R)
• M19: 2,988,367 km (0.066 R)
• M20: 3,101,164 km (0.082 R)
• M21: 3,431,326 km (0.084 R)
• M22: 3,532,604 km (0.108 R)
• M23: 3,773,008 km (0.06 R)
• M24: 4,000,995 km (0.096 R)
• M25: 4,143,711 km (0.119 R)
• M26: 4,278,948 km (0.082 R)
• M27: 4,360,778 km (0.116 R)
• M28: 4,452,481 km (0.056 R)
• M29: 4,544,783 km (0.083 R)
• M30: 4,948,847 km (0.109 R)
• M31: 5,092,611 km (0.07 R)
• M32: 5,208,699 km (0.051 R)
• M33: 5,354,856 km (0.111 R)
• M34: 5,571,922 km (0.065 R)
• M35: 5,761,762 km (0.114 R)
• M36: 6,055,722 km (0.067 R)
• M37: 6,189,014 km (0.057 R)
• M38: 6,542,364 km (0.117 R)
• M39: 6,913,217 km (0.089 R)
• M40: 7,138,960 km (0.108 R)
• M41: 7,225,577 km (0.07 R)
• M42: 7,400,008 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.9

Radius: 12.2

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.81 AU - 1.09 AU

Year: 639 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 30,236,586 km

• M1: 152,440 km (0.05 R)
• M2: 267,930 km (0.116 R)
• M3: 387,758 km (0.087 R)
• M4: 493,224 km (0.12 R)
• M5: 578,196 km (0.041 R)
• M6: 679,174 km (0.109 R)
• M7: 862,731 km (0.074 R)
• M8: 1,099,544 km (0.06 R)
• M9: 1,351,617 km (0.111 R)
• M10: 1,512,135 km (0.032 R)
• M11: 1,657,844 km (0.106 R)
• M12: 1,757,775 km (0.088 R)
• M13: 1,837,810 km (0.117 R)
• M14: 1,948,961 km (0.055 R)
• M15: 2,093,024 km (0.04 R)
• M16: 2,280,320 km (0.118 R)
• M17: 2,416,454 km (0.105 R)
• M18: 2,713,705 km (0.097 R)
• M19: 2,892,774 km (0.118 R)
• M20: 3,084,558 km (0.1 R)
• M21: 3,164,294 km (0.113 R)
• M22: 3,280,681 km (0.079 R)
• M23: 3,444,192 km (0.064 R)
• M24: 3,527,069 km (0.103 R)
• M25: 3,638,519 km (0.099 R)
• M26: 4,086,565 km (0.113 R)
• M27: 4,193,976 km (0.057 R)
• M28: 4,512,021 km (0.106 R)
• M29: 4,592,655 km (0.104 R)
• M30: 4,899,929 km (0.119 R)
• M31: 5,066,431 km (0.117 R)
• M32: 5,213,785 km (0.092 R)
• M33: 5,351,864 km (0.077 R)
• M34: 5,577,607 km (0.112 R)
• M35: 5,872,464 km (0.049 R)
• M36: 6,005,158 km (0.075 R)
• M37: 6,217,288 km (0.086 R)
• M38: 6,318,565 km (0.06 R)
• M39: 6,420,591 km (0.086 R)
• M40: 6,672,065 km (0.115 R)
• M41: 6,880,305 km (0.119 R)
• M42: 7,102,458 km (0.075 R)
• M43: 7,184,887 km (0.099 R)
• M44: 7,303,218 km (0.102 R)
• M45: 7,638,018 km (0.066 R)
• M46: 7,892,484 km (0.076 R)
• M47: 7,990,172 km (0.099 R)
• M48: 8,174,327 km (0.12 R)
• M49: 8,285,628 km (0.097 R)
• M50: 8,384,811 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.7

Radius: 10.7

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.89 AU - 1.97 AU

Year: 1851 Days

Day: 12.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 30,236,586 km

• M1: 169,943 km (0.079 R)
• M2: 257,608 km (0.081 R)
• M3: 345,122 km (0.117 R)
• M4: 515,065 km (0.101 R)
• M5: 582,235 km (0.049 R)
• M6: 1,088,025 km (0.088 R)
• M7: 1,178,083 km (0.083 R)
• M8: 1,292,526 km (0.082 R)
• M9: 1,463,965 km (0.116 R)
• M10: 1,533,079 km (0.047 R)
• M11: 1,642,884 km (0.097 R)
• M12: 1,755,531 km (0.039 R)
• M13: 1,920,986 km (0.108 R)
• M14: 2,135,210 km (0.051 R)
• M15: 2,249,802 km (0.098 R)
• M16: 2,448,468 km (0.069 R)
• M17: 2,568,595 km (0.115 R)
• M18: 2,795,685 km (0.1 R)
• M19: 2,980,139 km (0.113 R)
• M20: 3,049,253 km (0.111 R)
• M21: 3,779,291 km (0.08 R)
• M22: 3,875,632 km (0.104 R)
• M23: 4,169,741 km (0.086 R)
• M24: 4,550,618 km (0.09 R)
• M25: 5,166,362 km (0.11 R)
• M26: 5,297,560 km (0.098 R)
• M27: 5,405,719 km (0.104 R)
• M28: 5,563,246 km (0.065 R)
• M29: 6,322,604 km (0.047 R)
• M30: 6,488,658 km (0.105 R)
• M31: 6,656,208 km (0.05 R)
• M32: 6,995,496 km (0.074 R)
• M33: 7,114,426 km (0.07 R)
• M34: 7,623,507 km (0.119 R)
• M35: 7,786,719 km (0.067 R)
• M36: 8,144,258 km (0.096 R)
• M37: 8,339,184 km (0.092 R)
• M38: 8,409,046 km (0.09 R)
• M39: 8,606,066 km (0.1 R)
• M40: 8,804,583 km (0.112 R)
• M41: 8,947,149 km (0.052 R)
• M42: 9,047,530 km (0.116 R)
• M43: 9,789,984 km (0.026 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.3

Radius: 10.8

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.91 AU - 2.91 AU

Year: 2582 Days

Day: 12.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 30,236,586 km

• M1: 134,937 km (0.109 R)
• M2: 274,811 km (0.047 R)
• M3: 367,113 km (0.104 R)
• M4: 601,832 km (0.047 R)
• M5: 854,054 km (0.098 R)
• M6: 1,004,251 km (0.079 R)
• M7: 1,258,567 km (0.044 R)
• M8: 1,494,932 km (0.112 R)
• M9: 1,598,902 km (0.086 R)
• M10: 1,939,836 km (0.064 R)
• M11: 2,140,895 km (0.117 R)
• M12: 2,243,968 km (0.111 R)
• M13: 2,363,946 km (0.09 R)
• M14: 2,849,241 km (0.099 R)
• M15: 3,078,575 km (0.063 R)
• M16: 3,195,560 km (0.052 R)
• M17: 3,314,042 km (0.104 R)
• M18: 3,696,115 km (0.077 R)
• M19: 3,982,894 km (0.11 R)
• M20: 4,202,653 km (0.061 R)
• M21: 4,314,103 km (0.071 R)
• M22: 4,445,450 km (0.082 R)
• M23: 4,712,034 km (0.113 R)
• M24: 5,102,185 km (0.069 R)
• M25: 5,624,730 km (0.099 R)
• M26: 5,955,042 km (0.095 R)
• M27: 6,185,722 km (0.104 R)
• M28: 6,312,881 km (0.098 R)
• M29: 6,677,600 km (0.084 R)
• M30: 6,895,564 km (0.051 R)
• M31: 7,049,500 km (0.049 R)
• M32: 7,182,343 km (0.112 R)
• M33: 7,383,104 km (0.088 R)
• M34: 7,676,465 km (0.102 R)
• M35: 8,019,792 km (0.067 R)
• M36: 8,158,619 km (0.068 R)
• M37: 8,228,182 km (0.067 R)
• M38: 8,745,342 km (0.087 R)
• M39: 9,103,928 km (0.109 R)
• M40: 9,564,989 km (0.12 R)
• M41: 9,909,662 km (0.082 R)
• M42: 10,208,409 km (0.089 R)
• M43: 10,358,905 km (0.068 R)
• M44: 10,535,430 km (0.091 R)
• M45: 10,713,003 km (0.049 R)
• M46: 10,814,879 km (0.107 R)
• M47: 10,891,473 km (0.119 R)
• M48: 10,993,948 km (0.054 R)
• M49: 11,096,721 km (0.115 R)
• M50: 11,458,898 km (0.109 R)
• M51: 11,563,167 km (0.104 R)
• M52: 11,667,587 km (0.119 R)
• M53: 11,956,759 km (0.11 R)
• M54: 12,221,548 km (0.094 R)
• M55: 12,488,430 km (0.11 R)
• M56: 13,273,071 km (0.043 R)
• M57: 13,685,213 km (0.069 R)
• M58: 13,906,768 km (0.086 R)
• M59: 14,465,815 km (0.062 R)
• M60: 15,289,501 km (0.095 R)
• M61: 15,490,710 km (0.075 R)
• M62: 15,895,522 km (0.06 R)
• M63: 16,099,274 km (0.084 R)
• M64: 16,686,146 km (0.069 R)
• M65: 16,863,570 km (0.067 R)
• M66: 17,280,050 km (0.113 R)
• M67: 17,820,547 km (0.092 R)
• M68: 18,062,597 km (0.099 R)
• M69: 18,244,807 km (0.107 R)
• M70: 18,458,133 km (0.057 R)
• M71: 18,703,025 km (0.069 R)
• M72: 18,948,964 km (0.109 R)
• M73: 19,257,883 km (0.113 R)
• M74: 20,194,665 km (0.114 R)
• M75: 21,050,515 km (0.047 R)
• M76: 21,466,846 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.1

Radius: 13.4

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.46 AU - 4.94 AU

Year: 5941 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 30,236,586 km

• M1: 174,282 km (0.118 R)
• M2: 258,206 km (0.061 R)
• M3: 453,730 km (0.096 R)
• M4: 885,619 km (0.028 R)
• M5: 1,005,746 km (0.076 R)
• M6: 1,219,073 km (0.102 R)
• M7: 1,559,857 km (0.034 R)
• M8: 1,674,748 km (0.117 R)
• M9: 1,775,727 km (0.1 R)
• M10: 1,931,009 km (0.079 R)
• M11: 2,200,435 km (0.09 R)
• M12: 2,405,833 km (0.051 R)
• M13: 2,676,755 km (0.089 R)
• M14: 3,418,760 km (0.058 R)
• M15: 3,768,670 km (0.084 R)
• M16: 4,338,488 km (0.116 R)
• M17: 4,717,718 km (0.113 R)
• M18: 5,181,921 km (0.054 R)
• M19: 5,432,198 km (0.112 R)
• M20: 5,712,245 km (0.07 R)
• M21: 6,075,618 km (0.091 R)
• M22: 6,607,738 km (0.105 R)
• M23: 6,770,351 km (0.115 R)
• M24: 6,879,408 km (0.089 R)
• M25: 7,127,142 km (0.039 R)
• M26: 8,089,804 km (0.106 R)
• M27: 8,409,943 km (0.103 R)
• M28: 9,213,583 km (0.106 R)
• M29: 9,793,873 km (0.113 R)
• M30: 10,104,139 km (0.096 R)
• M31: 10,260,469 km (0.117 R)
• M32: 10,829,839 km (0.063 R)
• M33: 11,183,039 km (0.114 R)
• M34: 11,279,979 km (0.118 R)
• M35: 11,409,680 km (0.105 R)
• M36: 11,507,367 km (0.03 R)
• M37: 11,966,633 km (0.104 R)
• M38: 12,231,720 km (0.113 R)
• M39: 12,398,522 km (0.119 R)
• M40: 12,767,879 km (0.102 R)
• M41: 12,869,306 km (0.072 R)
• M42: 13,140,976 km (0.106 R)
• M43: 13,311,817 km (0.108 R)
• M44: 13,448,998 km (0.092 R)
• M45: 13,724,707 km (0.042 R)
• M46: 14,775,482 km (0.05 R)
• M47: 15,346,498 km (0.111 R)
• M48: 16,326,364 km (0.089 R)
• M49: 16,879,577 km (0.099 R)
• M50: 17,065,377 km (0.111 R)
• M51: 17,326,575 km (0.059 R)
• M52: 17,589,119 km (0.1 R)
• M53: 17,702,066 km (0.049 R)
• M54: 17,966,555 km (0.117 R)
• M55: 18,194,243 km (0.096 R)
• M56: 18,384,681 km (0.092 R)
• M57: 18,575,867 km (0.033 R)
• M58: 18,767,651 km (0.063 R)
• M59: 19,424,835 km (0.09 R)
• M60: 19,854,031 km (0.097 R)
• M61: 20,365,506 km (0.113 R)
• M62: 21,120,676 km (0.087 R)
• M63: 22,290,980 km (0.102 R)
• M64: 22,945,621 km (0.059 R)
• M65: 23,689,720 km (0.086 R)
• M66: 24,863,017 km (0.114 R)
• M67: 24,947,539 km (0.104 R)
• M68: 25,371,500 km (0.076 R)
• M69: 26,012,227 km (0.117 R)
• M70: 26,269,835 km (0.047 R)
• M71: 26,442,172 km (0.092 R)
• M72: 26,658,041 km (0.053 R)
• M73: 27,702,534 km (0.085 R)
• M74: 28,141,753 km (0.109 R)
• M75: 28,229,866 km (0.119 R)
• M76: 28,494,804 km (0.113 R)
• M77: 28,849,201 km (0.098 R)
• M78: 30,101,336 km (0.098 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 18,763 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit