🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.48 AU - 0.76 AU

Year: 177 Days

Day: 32.2 Hours

Environment

Temp: 169 °C

Axial Tilt: 49.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,771,879 km

• M1: 93,349 km (0.089 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.24 AU - 1.48 AU

Year: 574 Days

Day: 33.2 Hours

Environment

Temp: -11 °C

Axial Tilt: 39.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 54,771,879 km

• M1: 238,758 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.29 AU - 1.43 AU

Year: 574 Days

Day: 30.8 Hours

Environment

Temp: -20 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.49 AU - 1.63 AU

Year: 705 Days

Day: 27.7 Hours

Environment

Temp: -36 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.82 AU - 1.84 AU

Year: 895 Days

Day: 33.1 Hours

Environment

Temp: -62 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,771,879 km

• M1: 355,295 km (0.095 R)
• M2: 626,815 km (0.114 R)

Asteroid Belt

Center: 3.81 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.9

Radius: 12

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.64 AU - 5.94 AU

Year: 5039 Days

Day: 6.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 150.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 54,771,879 km

• M1: 152,291 km (0.069 R)
• M2: 273,914 km (0.101 R)
• M3: 359,484 km (0.1 R)
• M4: 1,440,328 km (0.119 R)
• M5: 1,526,197 km (0.119 R)
• M6: 1,868,777 km (0.098 R)
• M7: 1,963,023 km (0.114 R)
• M8: 2,356,466 km (0.053 R)
• M9: 2,438,296 km (0.076 R)
• M10: 2,818,125 km (0.092 R)
• M11: 3,824,918 km (0.09 R)
• M12: 4,068,164 km (0.096 R)
• M13: 4,493,770 km (0.09 R)
• M14: 4,699,019 km (0.108 R)
• M15: 6,079,059 km (0.114 R)
• M16: 6,392,467 km (0.086 R)
• M17: 6,536,529 km (0.095 R)
• M18: 7,273,748 km (0.095 R)
• M19: 7,394,174 km (0.1 R)
• M20: 7,728,675 km (0.108 R)
• M21: 8,037,146 km (0.092 R)
• M22: 8,130,495 km (0.108 R)
• M23: 8,286,974 km (0.043 R)
• M24: 8,381,221 km (0.102 R)
• M25: 8,571,060 km (0.095 R)
• M26: 9,442,318 km (0.104 R)
• M27: 10,005,554 km (0.086 R)
• M28: 10,274,232 km (0.08 R)
• M29: 10,887,883 km (0.098 R)
• M30: 11,129,633 km (0.096 R)
• M31: 11,233,903 km (0.038 R)
• M32: 11,478,196 km (0.103 R)
• M33: 11,618,668 km (0.111 R)
• M34: 11,936,713 km (0.083 R)
• M35: 12,401,364 km (0.06 R)
• M36: 12,690,088 km (0.114 R)
• M37: 12,835,348 km (0.117 R)
• M38: 13,200,965 km (0.108 R)
• M39: 14,583,399 km (0.085 R)
• M40: 15,041,617 km (0.092 R)
• M41: 15,118,361 km (0.066 R)
• M42: 15,388,385 km (0.079 R)
• M43: 15,582,114 km (0.117 R)
• M44: 16,881,521 km (0.053 R)
• M45: 18,420,435 km (0.045 R)
• M46: 19,123,395 km (0.067 R)
• M47: 19,415,410 km (0.099 R)
• M48: 19,624,847 km (0.098 R)
• M49: 19,835,182 km (0.102 R)
• M50: 19,961,592 km (0.109 R)
• M51: 20,342,767 km (0.098 R)
• M52: 21,155,383 km (0.098 R)
• M53: 21,934,937 km (0.1 R)
• M54: 22,459,876 km (0.091 R)
• M55: 22,767,898 km (0.119 R)
• M56: 23,834,980 km (0.104 R)
• M57: 24,014,497 km (0.046 R)
• M58: 24,419,908 km (0.084 R)
• M59: 25,146,056 km (0.093 R)
• M60: 25,557,749 km (0.054 R)
• M61: 25,925,610 km (0.092 R)
• M62: 26,063,988 km (0.074 R)
• M63: 26,899,343 km (0.109 R)
• M64: 27,039,516 km (0.115 R)
• M65: 27,743,524 km (0.04 R)
• M66: 27,932,316 km (0.111 R)
• M67: 28,548,809 km (0.071 R)
• M68: 29,121,918 km (0.109 R)
• M69: 29,506,086 km (0.088 R)
• M70: 29,698,768 km (0.085 R)
• M71: 29,891,899 km (0.11 R)
• M72: 30,619,991 km (0.074 R)
• M73: 31,108,578 km (0.091 R)
• M74: 31,846,245 km (0.061 R)
• M75: 32,390,781 km (0.115 R)
• M76: 32,788,861 km (0.109 R)
• M77: 33,690,488 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.8

Radius: 9.8

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.92 AU - 8.68 AU

Year: 7133 Days

Day: 5.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 54,771,879 km

• M1: 145,858 km (0.085 R)
• M2: 220,956 km (0.087 R)
• M3: 324,627 km (0.108 R)
• M4: 1,033,272 km (0.111 R)
• M5: 1,121,086 km (0.061 R)
• M6: 1,211,593 km (0.109 R)
• M7: 1,478,625 km (0.06 R)
• M8: 1,598,902 km (0.064 R)
• M9: 1,764,507 km (0.104 R)
• M10: 1,828,086 km (0.037 R)
• M11: 2,364,694 km (0.099 R)
• M12: 2,458,791 km (0.099 R)
• M13: 2,530,149 km (0.069 R)
• M14: 2,897,860 km (0.09 R)
• M15: 2,973,407 km (0.069 R)
• M16: 3,075,283 km (0.035 R)
• M17: 3,152,326 km (0.026 R)
• M18: 3,710,626 km (0.085 R)
• M19: 4,386,060 km (0.114 R)
• M20: 4,887,362 km (0.064 R)
• M21: 4,977,869 km (0.088 R)
• M22: 5,594,661 km (0.063 R)
• M23: 6,465,470 km (0.088 R)
• M24: 6,598,164 km (0.114 R)
• M25: 6,664,735 km (0.077 R)
• M26: 6,798,774 km (0.116 R)
• M27: 6,933,562 km (0.089 R)
• M28: 7,171,872 km (0.12 R)
• M29: 7,309,202 km (0.046 R)
• M30: 7,447,431 km (0.114 R)
• M31: 7,761,586 km (0.057 R)
• M32: 7,937,962 km (0.028 R)
• M33: 8,223,096 km (0.096 R)
• M34: 8,366,859 km (0.065 R)
• M35: 8,547,723 km (0.118 R)
• M36: 8,913,490 km (0.088 R)
• M37: 10,195,244 km (0.05 R)
• M38: 10,818,320 km (0.096 R)
• M39: 11,015,490 km (0.099 R)
• M40: 12,264,781 km (0.089 R)
• M41: 12,429,189 km (0.087 R)
• M42: 13,220,413 km (0.084 R)
• M43: 16,408,792 km (0.108 R)
• M44: 16,863,270 km (0.112 R)
• M45: 17,046,229 km (0.084 R)
• M46: 17,183,859 km (0.114 R)
• M47: 17,506,541 km (0.116 R)
• M48: 18,580,804 km (0.12 R)
• M49: 19,436,204 km (0.049 R)
• M50: 19,868,841 km (0.066 R)
• M51: 20,159,061 km (0.096 R)
• M52: 20,939,663 km (0.115 R)
• M53: 22,279,162 km (0.064 R)
• M54: 22,832,973 km (0.069 R)
• M55: 23,086,093 km (0.108 R)
• M56: 23,493,149 km (0.119 R)
• M57: 24,262,830 km (0.077 R)
• M58: 24,469,425 km (0.09 R)
• M59: 25,145,008 km (0.051 R)
• M60: 26,143,425 km (0.081 R)
• M61: 26,567,684 km (0.079 R)
• M62: 26,887,375 km (0.059 R)
• M63: 27,101,150 km (0.102 R)
• M64: 29,490,378 km (0.112 R)
• M65: 29,655,833 km (0.106 R)
• M66: 29,876,789 km (0.099 R)
• M67: 30,989,648 km (0.04 R)
• M68: 31,664,035 km (0.102 R)
• M69: 31,889,778 km (0.097 R)
• M70: 32,002,874 km (0.108 R)
• M71: 33,141,463 km (0.097 R)
• M72: 33,313,351 km (0.097 R)
• M73: 33,773,365 km (0.091 R)
• M74: 34,235,323 km (0.101 R)
• M75: 35,692,706 km (0.056 R)
• M76: 36,222,282 km (0.114 R)
• M77: 36,458,497 km (0.11 R)
• M78: 36,873,033 km (0.077 R)
• M79: 36,991,813 km (0.116 R)
• M80: 37,289,214 km (0.079 R)
• M81: 37,766,730 km (0.052 R)
• M82: 39,090,372 km (0.102 R)
• M83: 40,551,495 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.5

Radius: 8.6

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.28 AU - 8.66 AU

Year: 7384 Days

Day: 5.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 54,771,879 km

• M1: 123,119 km (0.106 R)
• M2: 195,225 km (0.065 R)
• M3: 264,190 km (0.107 R)
• M4: 334,800 km (0.116 R)
• M5: 437,275 km (0.03 R)
• M6: 538,552 km (0.107 R)
• M7: 648,507 km (0.116 R)
• M8: 781,649 km (0.111 R)
• M9: 883,675 km (0.107 R)
• M10: 948,899 km (0.076 R)
• M11: 1,024,297 km (0.063 R)
• M12: 1,093,112 km (0.113 R)
• M13: 1,509,443 km (0.098 R)
• M14: 1,929,214 km (0.069 R)
• M15: 2,069,836 km (0.073 R)
• M16: 2,135,809 km (0.049 R)
• M17: 2,629,781 km (0.116 R)
• M18: 2,701,588 km (0.12 R)
• M19: 2,970,266 km (0.076 R)
• M20: 3,045,065 km (0.092 R)
• M21: 3,158,460 km (0.071 R)
• M22: 3,234,904 km (0.076 R)
• M23: 3,868,152 km (0.105 R)
• M24: 3,949,982 km (0.074 R)
• M25: 4,129,350 km (0.107 R)
• M26: 4,496,164 km (0.04 R)
• M27: 4,770,975 km (0.109 R)
• M28: 4,844,129 km (0.084 R)
• M29: 4,917,731 km (0.043 R)
• M30: 5,110,862 km (0.095 R)
• M31: 5,412,900 km (0.058 R)
• M32: 5,535,271 km (0.102 R)
• M33: 5,596,905 km (0.097 R)
• M34: 5,736,330 km (0.1 R)
• M35: 5,986,907 km (0.063 R)
• M36: 6,209,209 km (0.054 R)
• M37: 6,580,212 km (0.048 R)
• M38: 6,661,892 km (0.064 R)
• M39: 6,776,784 km (0.116 R)
• M40: 7,310,100 km (0.117 R)
• M41: 7,479,594 km (0.106 R)
• M42: 7,891,736 km (0.112 R)
• M43: 8,065,569 km (0.066 R)
• M44: 8,470,381 km (0.096 R)
• M45: 8,738,012 km (0.076 R)
• M46: 8,845,722 km (0.074 R)
• M47: 8,935,930 km (0.078 R)
• M48: 9,299,752 km (0.043 R)
• M49: 9,465,057 km (0.057 R)
• M50: 9,594,310 km (0.075 R)
• M51: 9,761,411 km (0.11 R)
• M52: 10,325,095 km (0.113 R)
• M53: 10,591,828 km (0.089 R)
• M54: 11,034,937 km (0.062 R)
• M55: 11,899,463 km (0.109 R)
• M56: 12,139,119 km (0.078 R)
• M57: 12,319,833 km (0.106 R)
• M58: 12,704,300 km (0.097 R)
• M59: 12,826,521 km (0.093 R)
• M60: 13,154,440 km (0.092 R)
• M61: 13,422,819 km (0.113 R)
• M62: 14,091,371 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.1

Radius: 14.2

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.44 AU - 8 AU

Year: 7757 Days

Day: 9.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 54,771,879 km

• M1: 225,743 km (0.11 R)
• M2: 432,338 km (0.051 R)
• M3: 597,344 km (0.073 R)
• M4: 1,017,864 km (0.045 R)
• M5: 1,711,549 km (0.064 R)
• M6: 2,245,464 km (0.106 R)
• M7: 2,339,561 km (0.111 R)
• M8: 2,483,175 km (0.081 R)
• M9: 2,629,781 km (0.09 R)
• M10: 3,849,452 km (0.09 R)
• M11: 3,991,720 km (0.069 R)
• M12: 4,577,994 km (0.098 R)
• M13: 5,476,329 km (0.096 R)
• M14: 5,636,698 km (0.12 R)
• M15: 6,193,950 km (0.04 R)
• M16: 6,530,097 km (0.105 R)
• M17: 6,632,122 km (0.119 R)
• M18: 7,255,497 km (0.095 R)
• M19: 8,006,628 km (0.07 R)
• M20: 8,152,486 km (0.072 R)
• M21: 8,299,241 km (0.031 R)
• M22: 8,558,345 km (0.078 R)
• M23: 8,932,938 km (0.089 R)
• M24: 9,893,356 km (0.094 R)
• M25: 10,247,155 km (0.113 R)
• M26: 10,926,778 km (0.116 R)
• M27: 11,170,174 km (0.082 R)
• M28: 11,374,375 km (0.072 R)
• M29: 12,245,633 km (0.095 R)
• M30: 14,627,979 km (0.114 R)
• M31: 15,438,201 km (0.114 R)
• M32: 15,620,262 km (0.082 R)
• M33: 15,803,070 km (0.05 R)
• M34: 16,170,782 km (0.069 R)
• M35: 16,727,585 km (0.11 R)
• M36: 17,290,671 km (0.113 R)
• M37: 18,099,098 km (0.085 R)
• M38: 18,435,694 km (0.11 R)
• M39: 19,163,637 km (0.094 R)
• M40: 19,310,392 km (0.099 R)
• M41: 19,703,536 km (0.1 R)
• M42: 20,447,935 km (0.117 R)
• M43: 20,898,972 km (0.113 R)
• M44: 21,100,480 km (0.084 R)
• M45: 22,271,682 km (0.098 R)
• M46: 22,374,456 km (0.101 R)
• M47: 23,046,898 km (0.116 R)
• M48: 23,203,079 km (0.103 R)
• M49: 23,411,768 km (0.084 R)
• M50: 23,568,696 km (0.115 R)
• M51: 23,673,414 km (0.097 R)
• M52: 24,199,849 km (0.114 R)
• M53: 26,561,850 km (0.066 R)
• M54: 26,670,907 km (0.101 R)
• M55: 27,218,734 km (0.113 R)
• M56: 27,659,599 km (0.104 R)
• M57: 28,269,659 km (0.118 R)
• M58: 29,842,681 km (0.082 R)
• M59: 30,240,462 km (0.058 R)
• M60: 30,582,742 km (0.11 R)
• M61: 31,386,381 km (0.084 R)
• M62: 31,964,577 km (0.043 R)
• M63: 32,080,665 km (0.12 R)
• M64: 32,897,320 km (0.106 R)
• M65: 33,073,097 km (0.087 R)
• M66: 33,425,849 km (0.108 R)
• M67: 35,207,859 km (0.07 R)
• M68: 35,447,814 km (0.073 R)
• M69: 36,049,945 km (0.101 R)
• M70: 37,509,123 km (0.111 R)
• M71: 37,692,979 km (0.099 R)
• M72: 37,938,319 km (0.099 R)
• M73: 38,554,363 km (0.066 R)
• M74: 38,801,649 km (0.117 R)
• M75: 39,733,942 km (0.045 R)
• M76: 40,359,561 km (0.119 R)
• M77: 41,430,382 km (0.046 R)
• M78: 41,810,660 km (0.043 R)
• M79: 41,937,669 km (0.114 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.7

Radius: 14.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.42 AU - 12.34 AU

Year: 12094 Days

Day: 14.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 54,771,879 km

• M1: 268,229 km (0.072 R)
• M2: 631,004 km (0.084 R)
• M3: 920,775 km (0.078 R)
• M4: 1,082,490 km (0.07 R)
• M5: 1,189,004 km (0.116 R)
• M6: 1,506,899 km (0.113 R)
• M7: 1,603,091 km (0.084 R)
• M8: 1,827,188 km (0.055 R)
• M9: 2,008,800 km (0.11 R)
• M10: 2,390,724 km (0.087 R)
• M11: 2,677,951 km (0.083 R)
• M12: 3,037,585 km (0.094 R)
• M13: 3,192,269 km (0.113 R)
• M14: 4,592,655 km (0.037 R)
• M15: 4,915,188 km (0.075 R)
• M16: 6,357,610 km (0.118 R)
• M17: 8,659,772 km (0.078 R)
• M18: 9,148,508 km (0.084 R)
• M19: 9,967,856 km (0.079 R)
• M20: 10,527,202 km (0.12 R)
• M21: 10,763,417 km (0.084 R)
• M22: 11,385,445 km (0.056 R)
• M23: 12,664,657 km (0.068 R)
• M24: 12,765,037 km (0.108 R)
• M25: 12,865,566 km (0.113 R)
• M26: 13,016,810 km (0.107 R)
• M27: 13,372,404 km (0.044 R)
• M28: 14,040,957 km (0.105 R)
• M29: 14,826,047 km (0.071 R)
• M30: 16,003,232 km (0.081 R)
• M31: 16,220,598 km (0.074 R)
• M32: 16,933,581 km (0.051 R)
• M33: 17,265,988 km (0.12 R)
• M34: 18,731,897 km (0.061 R)
• M35: 18,960,932 km (0.103 R)
• M36: 19,191,013 km (0.093 R)
• M37: 20,590,352 km (0.114 R)
• M38: 21,781,600 km (0.092 R)
• M39: 22,567,886 km (0.077 R)
• M40: 23,301,813 km (0.104 R)
• M41: 23,857,569 km (0.118 R)
• M42: 24,043,819 km (0.094 R)
• M43: 25,932,342 km (0.105 R)
• M44: 28,523,976 km (0.063 R)
• M45: 29,383,864 km (0.088 R)
• M46: 29,650,298 km (0.095 R)
• M47: 30,118,240 km (0.097 R)
• M48: 31,264,908 km (0.111 R)
• M49: 31,468,810 km (0.115 R)
• M50: 32,494,752 km (0.094 R)
• M51: 32,839,126 km (0.049 R)
• M52: 33,253,961 km (0.104 R)
• M53: 33,740,154 km (0.03 R)
• M54: 33,949,292 km (0.077 R)
• M55: 35,495,984 km (0.099 R)
• M56: 36,206,574 km (0.073 R)
• M57: 37,065,565 km (0.038 R)
• M58: 37,353,392 km (0.119 R)
• M59: 37,786,477 km (0.095 R)
• M60: 39,168,911 km (0.067 R)
• M61: 39,608,879 km (0.101 R)
• M62: 40,198,145 km (0.082 R)
• M63: 40,567,951 km (0.117 R)
• M64: 40,790,403 km (0.109 R)
• M65: 41,908,497 km (0.11 R)
• M66: 42,133,343 km (0.092 R)
• M67: 42,283,389 km (0.08 R)
• M68: 42,433,735 km (0.074 R)
• M69: 44,403,490 km (0.096 R)
• M70: 44,939,051 km (0.113 R)
• M71: 46,093,647 km (0.113 R)
• M72: 46,325,673 km (0.114 R)
• M73: 47,180,027 km (0.082 R)
• M74: 47,882,838 km (0.092 R)
• M75: 49,299,081 km (0.078 R)
• M76: 49,774,204 km (0.073 R)
• M77: 52,172,407 km (0.108 R)
• M78: 53,792,103 km (0.104 R)
• M79: 54,118,077 km (0.117 R)
• M80: 54,689,990 km (0.081 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 14,046 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit