🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 13.4

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.59 AU - 0.89 AU

Year: 418 Days

Day: 6.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 15,299,523 km

• M1: 166,802 km (0.084 R)
• M2: 270,174 km (0.091 R)
• M3: 382,522 km (0.079 R)
• M4: 489,035 km (0.042 R)
• M5: 586,872 km (0.119 R)
• M6: 700,716 km (0.115 R)
• M7: 794,065 km (0.066 R)
• M8: 900,878 km (0.097 R)
• M9: 1,036,414 km (0.048 R)
• M10: 1,203,964 km (0.084 R)
• M11: 1,329,476 km (0.078 R)
• M12: 1,464,862 km (0.097 R)
• M13: 1,561,503 km (0.105 R)
• M14: 1,655,001 km (0.108 R)
• M15: 1,767,349 km (0.1 R)
• M16: 1,923,529 km (0.103 R)
• M17: 2,042,161 km (0.035 R)
• M18: 2,169,468 km (0.116 R)
• M19: 2,287,052 km (0.074 R)
• M20: 2,381,598 km (0.088 R)
• M21: 2,470,908 km (0.056 R)
• M22: 2,639,954 km (0.115 R)
• M23: 2,786,111 km (0.116 R)
• M24: 2,880,507 km (0.096 R)
• M25: 2,969,219 km (0.058 R)
• M26: 3,079,622 km (0.045 R)
• M27: 3,177,459 km (0.114 R)
• M28: 3,262,131 km (0.081 R)
• M29: 3,469,923 km (0.12 R)
• M30: 3,667,392 km (0.101 R)
• M31: 3,756,403 km (0.085 R)
• M32: 3,913,929 km (0.111 R)
• M33: 4,012,514 km (0.064 R)
• M34: 4,111,997 km (0.098 R)
• M35: 4,290,168 km (0.098 R)
• M36: 4,376,187 km (0.115 R)
• M37: 4,646,061 km (0.075 R)
• M38: 4,921,471 km (0.106 R)
• M39: 5,119,090 km (0.065 R)
• M40: 5,252,381 km (0.088 R)
• M41: 5,386,720 km (0.089 R)
• M42: 5,471,393 km (0.086 R)
• M43: 5,607,676 km (0.035 R)
• M44: 5,745,157 km (0.111 R)
• M45: 5,927,217 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.8

Radius: 8.2

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.17 AU - 1.57 AU

Year: 1052 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 15,299,523 km

• M1: 113,246 km (0.089 R)
• M2: 189,241 km (0.115 R)
• M3: 248,482 km (0.103 R)
• M4: 303,235 km (0.051 R)
• M5: 389,852 km (0.094 R)
• M6: 453,132 km (0.081 R)
• M7: 633,248 km (0.05 R)
• M8: 790,176 km (0.066 R)
• M9: 971,040 km (0.114 R)
• M10: 1,049,429 km (0.088 R)
• M11: 1,130,212 km (0.083 R)
• M12: 1,195,137 km (0.104 R)
• M13: 1,273,527 km (0.025 R)
• M14: 1,391,260 km (0.107 R)
• M15: 1,532,331 km (0.085 R)
• M16: 1,664,725 km (0.065 R)
• M17: 1,863,541 km (0.04 R)
• M18: 1,998,029 km (0.112 R)
• M19: 2,077,316 km (0.115 R)
• M20: 2,128,479 km (0.091 R)
• M21: 2,202,081 km (0.064 R)
• M22: 2,276,580 km (0.082 R)
• M23: 2,374,866 km (0.111 R)
• M24: 2,489,907 km (0.076 R)
• M25: 2,591,185 km (0.062 R)
• M26: 2,646,386 km (0.055 R)
• M27: 2,733,751 km (0.078 R)
• M28: 2,838,320 km (0.036 R)
• M29: 2,952,464 km (0.062 R)
• M30: 3,068,103 km (0.059 R)
• M31: 3,269,910 km (0.091 R)
• M32: 3,580,775 km (0.069 R)
• M33: 3,686,540 km (0.118 R)
• M34: 3,802,329 km (0.1 R)
• M35: 3,992,019 km (0.091 R)
• M36: 4,092,549 km (0.064 R)
• M37: 4,258,902 km (0.081 R)
• M38: 4,314,851 km (0.102 R)
• M39: 4,484,196 km (0.088 R)
• M40: 4,617,488 km (0.09 R)
• M41: 5,153,796 km (0.071 R)
• M42: 5,273,475 km (0.117 R)
• M43: 6,000,071 km (0.111 R)
• M44: 6,052,431 km (0.097 R)
• M45: 6,168,219 km (0.066 R)
• M46: 6,617,013 km (0.075 R)
• M47: 6,692,710 km (0.102 R)
• M48: 6,790,696 km (0.105 R)
• M49: 6,856,220 km (0.102 R)
• M50: 6,987,866 km (0.097 R)
• M51: 7,109,340 km (0.077 R)
• M52: 7,209,271 km (0.101 R)
• M53: 7,320,871 km (0.096 R)
• M54: 7,421,850 km (0.115 R)
• M55: 7,489,318 km (0.05 R)
• M56: 7,568,455 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.7

Radius: 11

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.55 AU - 2.27 AU

Year: 1732 Days

Day: 8.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 15,299,523 km

• M1: 167,101 km (0.092 R)
• M2: 263,591 km (0.107 R)
• M3: 435,180 km (0.083 R)
• M4: 581,337 km (0.046 R)
• M5: 657,333 km (0.089 R)
• M6: 787,184 km (0.078 R)
• M7: 980,764 km (0.102 R)
• M8: 1,083,687 km (0.12 R)
• M9: 1,220,120 km (0.081 R)
• M10: 1,352,365 km (0.08 R)
• M11: 1,510,938 km (0.066 R)
• M12: 1,755,082 km (0.086 R)
• M13: 2,048,294 km (0.112 R)
• M14: 2,120,999 km (0.118 R)
• M15: 2,331,932 km (0.075 R)
• M16: 2,523,866 km (0.1 R)
• M17: 2,681,243 km (0.039 R)
• M18: 2,950,818 km (0.117 R)
• M19: 3,300,279 km (0.027 R)
• M20: 3,458,254 km (0.097 R)
• M21: 3,604,112 km (0.084 R)
• M22: 3,767,024 km (0.098 R)
• M23: 4,177,221 km (0.106 R)
• M24: 4,348,361 km (0.101 R)
• M25: 4,427,050 km (0.089 R)
• M26: 4,522,044 km (0.05 R)
• M27: 4,681,815 km (0.104 R)
• M28: 5,189,401 km (0.117 R)
• M29: 5,272,876 km (0.089 R)
• M30: 5,424,269 km (0.057 R)
• M31: 5,526,145 km (0.09 R)
• M32: 5,679,932 km (0.111 R)
• M33: 5,800,657 km (0.093 R)
• M34: 5,957,137 km (0.091 R)
• M35: 6,185,573 km (0.108 R)
• M36: 6,256,482 km (0.069 R)
• M37: 6,345,493 km (0.113 R)
• M38: 6,488,658 km (0.104 R)
• M39: 6,778,579 km (0.094 R)
• M40: 6,961,836 km (0.084 R)
• M41: 7,806,914 km (0.084 R)
• M42: 8,290,415 km (0.116 R)
• M43: 8,664,559 km (0.045 R)
• M44: 9,044,089 km (0.025 R)
• M45: 9,449,499 km (0.096 R)
• M46: 9,943,920 km (0.089 R)
• M47: 10,215,291 km (0.107 R)
• M48: 10,680,091 km (0.093 R)
• M49: 11,065,455 km (0.107 R)
• M50: 11,238,241 km (0.105 R)
• M51: 11,564,663 km (0.06 R)
• M52: 11,805,965 km (0.069 R)
• M53: 12,093,492 km (0.115 R)
• M54: 12,360,823 km (0.06 R)
• M55: 12,630,099 km (0.087 R)
• M56: 12,765,486 km (0.1 R)
• M57: 12,946,798 km (0.075 R)
• M58: 13,311,817 km (0.072 R)
• M59: 13,819,403 km (0.086 R)
• M60: 14,333,421 km (0.035 R)
• M61: 15,044,310 km (0.087 R)
• M62: 15,888,191 km (0.12 R)
• M63: 16,132,186 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.9

Radius: 8.7

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.97 AU - 2.95 AU

Year: 2531 Days

Day: 14.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 15,299,523 km

• M1: 108,758 km (0.117 R)
• M2: 174,581 km (0.088 R)
• M3: 235,168 km (0.087 R)
• M4: 332,107 km (0.092 R)
• M5: 474,674 km (0.105 R)
• M6: 606,171 km (0.088 R)
• M7: 795,113 km (0.06 R)
• M8: 954,285 km (0.054 R)
• M9: 1,134,550 km (0.098 R)
• M10: 1,197,232 km (0.083 R)
• M11: 1,482,365 km (0.107 R)
• M12: 1,633,160 km (0.091 R)
• M13: 1,716,336 km (0.046 R)
• M14: 1,788,891 km (0.114 R)
• M15: 1,937,143 km (0.116 R)
• M16: 2,102,448 km (0.084 R)
• M17: 2,245,913 km (0.075 R)
• M18: 2,352,277 km (0.084 R)
• M19: 2,598,066 km (0.107 R)
• M20: 2,695,903 km (0.118 R)
• M21: 2,924,040 km (0.102 R)
• M22: 3,248,219 km (0.106 R)
• M23: 3,368,944 km (0.095 R)
• M24: 3,445,239 km (0.115 R)
• M25: 3,583,916 km (0.077 R)
• M26: 4,043,481 km (0.074 R)
• M27: 4,437,970 km (0.027 R)
• M28: 4,793,265 km (0.044 R)
• M29: 4,896,488 km (0.026 R)
• M30: 5,105,177 km (0.078 R)
• M31: 5,352,313 km (0.093 R)
• M32: 5,531,232 km (0.111 R)
• M33: 5,657,791 km (0.066 R)
• M34: 5,766,848 km (0.053 R)
• M35: 5,840,151 km (0.075 R)
• M36: 6,210,556 km (0.115 R)
• M37: 6,361,051 km (0.114 R)
• M38: 6,512,594 km (0.101 R)
• M39: 6,627,036 km (0.081 R)
• M40: 6,819,269 km (0.099 R)
• M41: 7,646,994 km (0.12 R)
• M42: 7,991,069 km (0.111 R)
• M43: 8,360,726 km (0.08 R)
• M44: 9,655,196 km (0.093 R)
• M45: 9,720,421 km (0.108 R)
• M46: 9,829,627 km (0.073 R)
• M47: 10,004,956 km (0.118 R)
• M48: 10,181,481 km (0.096 R)
• M49: 10,358,905 km (0.119 R)
• M50: 10,425,775 km (0.064 R)
• M51: 10,537,524 km (0.11 R)
• M52: 10,875,017 km (0.092 R)
• M53: 10,988,263 km (0.086 R)
• M54: 11,514,548 km (0.12 R)
• M55: 11,699,451 km (0.105 R)
• M56: 11,955,413 km (0.074 R)
• M57: 12,283,780 km (0.091 R)
• M58: 12,449,236 km (0.11 R)
• M59: 12,520,295 km (0.099 R)
• M60: 12,686,647 km (0.119 R)
• M61: 12,829,813 km (0.11 R)
• M62: 13,286,834 km (0.074 R)
• M63: 13,505,247 km (0.085 R)
• M64: 13,700,323 km (0.112 R)
• M65: 14,316,067 km (0.105 R)
• M66: 14,390,567 km (0.103 R)
• M67: 14,639,797 km (0.064 R)
• M68: 14,739,878 km (0.115 R)
• M69: 14,965,921 km (0.064 R)
• M70: 15,167,878 km (0.049 R)
• M71: 15,472,459 km (0.093 R)
• M72: 16,036,144 km (0.118 R)
• M73: 16,763,189 km (0.073 R)
• M74: 17,315,505 km (0.117 R)
• M75: 17,501,006 km (0.103 R)
• M76: 17,687,106 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.5

Radius: 9.3

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.47 AU - 2.54 AU

Year: 2593 Days

Day: 10.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 15,299,523 km

• M1: 278,252 km (0.072 R)
• M2: 498,460 km (0.099 R)
• M3: 666,907 km (0.058 R)
• M4: 834,158 km (0.1 R)
• M5: 982,559 km (0.068 R)
• M6: 1,060,200 km (0.038 R)
• M7: 1,128,417 km (0.062 R)
• M8: 1,221,915 km (0.118 R)
• M9: 1,441,974 km (0.096 R)
• M10: 1,622,090 km (0.115 R)
• M11: 1,714,990 km (0.076 R)
• M12: 2,075,670 km (0.074 R)
• M13: 2,191,609 km (0.077 R)
• M14: 2,399,550 km (0.111 R)
• M15: 2,676,605 km (0.093 R)
• M16: 2,834,880 km (0.079 R)
• M17: 3,144,398 km (0.045 R)
• M18: 3,227,724 km (0.072 R)
• M19: 3,464,836 km (0.096 R)
• M20: 3,795,896 km (0.114 R)
• M21: 3,884,758 km (0.104 R)
• M22: 4,028,222 km (0.102 R)
• M23: 4,945,706 km (0.071 R)
• M24: 5,101,437 km (0.106 R)
• M25: 5,160,379 km (0.108 R)
• M26: 5,659,587 km (0.1 R)
• M27: 5,720,473 km (0.095 R)
• M28: 6,111,671 km (0.062 R)
• M29: 6,174,353 km (0.107 R)
• M30: 6,426,725 km (0.088 R)
• M31: 7,116,371 km (0.116 R)
• M32: 7,358,869 km (0.034 R)
• M33: 7,806,914 km (0.088 R)
• M34: 7,874,832 km (0.082 R)
• M35: 8,682,361 km (0.071 R)
• M36: 8,799,796 km (0.107 R)
• M37: 9,203,261 km (0.03 R)
• M38: 9,275,218 km (0.11 R)
• M39: 9,783,252 km (0.081 R)
• M40: 10,053,127 km (0.117 R)
• M41: 10,424,877 km (0.091 R)
• M42: 10,851,830 km (0.114 R)
• M43: 10,953,107 km (0.071 R)
• M44: 11,207,723 km (0.095 R)
• M45: 11,567,506 km (0.117 R)
• M46: 11,670,878 km (0.098 R)
• M47: 11,878,819 km (0.038 R)
• M48: 11,957,059 km (0.114 R)
• M49: 12,562,930 km (0.114 R)
• M50: 12,749,329 km (0.082 R)
• M51: 12,882,920 km (0.048 R)
• M52: 13,017,109 km (0.072 R)
• M53: 13,232,680 km (0.062 R)
• M54: 13,340,989 km (0.117 R)
• M55: 13,612,957 km (0.064 R)
• M56: 13,886,722 km (0.048 R)
• M57: 14,467,610 km (0.088 R)
• M58: 14,690,960 km (0.119 R)
• M59: 14,943,630 km (0.073 R)
• M60: 15,112,826 km (0.11 R)
• M61: 15,510,307 km (0.111 R)
• M62: 16,693,776 km (0.09 R)
• M63: 16,928,046 km (0.074 R)
• M64: 17,075,101 km (0.066 R)
• M65: 17,163,513 km (0.069 R)
• M66: 17,816,508 km (0.091 R)
• M67: 17,965,956 km (0.077 R)
• M68: 18,477,581 km (0.088 R)
• M69: 19,269,253 km (0.07 R)
• M70: 19,916,713 km (0.111 R)
• M71: 20,103,111 km (0.117 R)
• M72: 20,696,865 km (0.091 R)
• M73: 20,917,073 km (0.103 R)
• M74: 21,106,464 km (0.088 R)
• M75: 21,201,309 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.4

Radius: 11.6

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.87 AU - 3.31 AU

Year: 3563 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 15,299,523 km

• M1: 182,061 km (0.041 R)
• M2: 283,638 km (0.074 R)
• M3: 464,651 km (0.091 R)
• M4: 557,701 km (0.105 R)
• M5: 658,231 km (0.101 R)
• M6: 765,941 km (0.026 R)
• M7: 1,013,077 km (0.118 R)
• M8: 1,354,908 km (0.118 R)
• M9: 1,438,982 km (0.065 R)
• M10: 1,568,683 km (0.115 R)
• M11: 1,687,314 km (0.048 R)
• M12: 1,809,087 km (0.086 R)
• M13: 2,094,221 km (0.103 R)
• M14: 2,192,506 km (0.093 R)
• M15: 2,309,193 km (0.092 R)
• M16: 2,779,080 km (0.057 R)
• M17: 2,997,493 km (0.056 R)
• M18: 3,316,734 km (0.071 R)
• M19: 3,607,702 km (0.054 R)
• M20: 3,927,393 km (0.119 R)
• M21: 4,008,774 km (0.117 R)
• M22: 4,214,621 km (0.119 R)
• M23: 5,072,864 km (0.093 R)
• M24: 5,273,475 km (0.095 R)
• M25: 5,636,549 km (0.076 R)
• M26: 5,728,551 km (0.053 R)
• M27: 5,914,202 km (0.066 R)
• M28: 6,243,916 km (0.116 R)
• M29: 6,386,931 km (0.05 R)
• M30: 6,531,293 km (0.067 R)
• M31: 6,676,553 km (0.117 R)
• M32: 7,044,713 km (0.068 R)
• M33: 7,596,580 km (0.06 R)
• M34: 7,800,631 km (0.041 R)
• M35: 7,929,286 km (0.089 R)
• M36: 8,032,508 km (0.068 R)
• M37: 8,266,778 km (0.099 R)
• M38: 8,529,622 km (0.081 R)
• M39: 8,715,273 km (0.061 R)
• M40: 9,691,100 km (0.094 R)
• M41: 10,163,979 km (0.111 R)
• M42: 10,276,327 km (0.114 R)
• M43: 10,758,630 km (0.105 R)
• M44: 11,248,264 km (0.104 R)
• M45: 11,833,640 km (0.112 R)
• M46: 13,217,421 km (0.049 R)
• M47: 13,834,961 km (0.101 R)
• M48: 14,556,770 km (0.042 R)
• M49: 14,715,344 km (0.098 R)
• M50: 14,810,788 km (0.087 R)
• M51: 15,258,684 km (0.084 R)
• M52: 15,452,114 km (0.091 R)
• M53: 16,135,327 km (0.119 R)
• M54: 16,266,524 km (0.104 R)
• M55: 16,596,238 km (0.07 R)
• M56: 16,795,054 km (0.105 R)
• M57: 16,994,767 km (0.091 R)
• M58: 17,497,416 km (0.054 R)
• M59: 18,141,135 km (0.088 R)
• M60: 18,620,447 km (0.052 R)
• M61: 18,896,156 km (0.064 R)
• M62: 19,347,193 km (0.101 R)
• M63: 19,696,504 km (0.111 R)
• M64: 19,836,827 km (0.098 R)
• M65: 20,650,191 km (0.094 R)
• M66: 20,792,758 km (0.104 R)
• M67: 22,127,021 km (0.078 R)
• M68: 22,236,377 km (0.105 R)
• M69: 23,303,160 km (0.099 R)
• M70: 23,600,410 km (0.106 R)
• M71: 25,181,361 km (0.102 R)
• M72: 25,295,654 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.8

Radius: 14.6

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 4.27 AU - 6.65 AU

Year: 8369 Days

Day: 8.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 15,299,523 km

• M1: 194,477 km (0.053 R)
• M2: 409,300 km (0.093 R)
• M3: 523,593 km (0.108 R)
• M4: 645,365 km (0.033 R)
• M5: 763,398 km (0.095 R)
• M6: 857,794 km (0.114 R)
• M7: 1,204,113 km (0.076 R)
• M8: 1,483,412 km (0.1 R)
• M9: 1,657,245 km (0.116 R)
• M10: 1,860,100 km (0.062 R)
• M11: 2,267,305 km (0.067 R)
• M12: 2,918,206 km (0.084 R)
• M13: 3,152,326 km (0.056 R)
• M14: 3,271,705 km (0.104 R)
• M15: 3,920,362 km (0.047 R)
• M16: 5,083,934 km (0.072 R)
• M17: 5,224,855 km (0.046 R)
• M18: 5,462,566 km (0.058 R)
• M19: 6,230,751 km (0.057 R)
• M20: 6,483,123 km (0.104 R)
• M21: 7,366,498 km (0.106 R)
• M22: 7,597,777 km (0.102 R)
• M23: 8,790,072 km (0.119 R)
• M24: 8,959,865 km (0.117 R)
• M25: 9,149,705 km (0.117 R)
• M26: 9,707,855 km (0.081 R)
• M27: 10,119,099 km (0.117 R)
• M28: 10,515,982 km (0.119 R)
• M29: 10,877,560 km (0.047 R)
• M30: 11,592,638 km (0.098 R)
• M31: 11,696,010 km (0.09 R)
• M32: 12,008,071 km (0.099 R)
• M33: 12,597,936 km (0.063 R)
• M34: 13,326,926 km (0.109 R)
• M35: 13,631,059 km (0.026 R)
• M36: 13,740,265 km (0.073 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 12,162 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit