🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.4

Radius: 11.5

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.95 AU - 1.01 AU

Year: 658 Days

Day: 5.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 61,531,174 km

• M1: 145,260 km (0.118 R)
• M2: 263,143 km (0.042 R)
• M3: 348,713 km (0.11 R)
• M4: 518,506 km (0.071 R)
• M5: 662,868 km (0.067 R)
• M6: 855,401 km (0.117 R)
• M7: 929,751 km (0.119 R)
• M8: 1,024,446 km (0.067 R)
• M9: 1,198,877 km (0.105 R)
• M10: 1,283,251 km (0.11 R)
• M11: 1,656,348 km (0.096 R)
• M12: 1,766,152 km (0.111 R)
• M13: 1,885,980 km (0.073 R)
• M14: 1,977,684 km (0.067 R)
• M15: 2,134,014 km (0.119 R)
• M16: 2,205,671 km (0.099 R)
• M17: 2,278,226 km (0.051 R)
• M18: 2,376,213 km (0.079 R)
• M19: 2,585,201 km (0.099 R)
• M20: 2,722,083 km (0.113 R)
• M21: 2,808,850 km (0.107 R)
• M22: 2,887,837 km (0.087 R)
• M23: 3,021,129 km (0.074 R)
• M24: 3,238,794 km (0.041 R)
• M25: 3,396,171 km (0.104 R)
• M26: 3,489,819 km (0.11 R)
• M27: 3,584,515 km (0.1 R)
• M28: 3,670,384 km (0.109 R)
• M29: 3,786,023 km (0.09 R)
• M30: 3,971,674 km (0.105 R)
• M31: 4,050,811 km (0.115 R)
• M32: 4,210,582 km (0.096 R)
• M33: 4,331,756 km (0.051 R)
• M34: 4,765,141 km (0.111 R)
• M35: 4,902,173 km (0.071 R)
• M36: 4,987,144 km (0.092 R)
• M37: 5,234,280 km (0.082 R)
• M38: 5,629,218 km (0.089 R)
• M39: 5,740,669 km (0.109 R)
• M40: 6,182,282 km (0.088 R)
• M41: 6,332,029 km (0.113 R)
• M42: 6,564,654 km (0.117 R)
• M43: 6,646,783 km (0.115 R)
• M44: 7,122,504 km (0.093 R)
• M45: 7,462,091 km (0.026 R)
• M46: 7,535,694 km (0.116 R)
• M47: 7,757,547 km (0.107 R)
• M48: 8,006,628 km (0.091 R)
• M49: 8,081,875 km (0.083 R)
• M50: 8,157,422 km (0.054 R)
• M51: 8,347,112 km (0.071 R)
• M52: 8,512,717 km (0.104 R)
• M53: 8,589,611 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.6

Radius: 14.2

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.87 AU - 1.23 AU

Year: 730 Days

Day: 9.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 61,531,174 km

• M1: 190,588 km (0.106 R)
• M2: 313,408 km (0.026 R)
• M3: 408,851 km (0.1 R)
• M4: 509,231 km (0.083 R)
• M5: 632,500 km (0.109 R)
• M6: 781,050 km (0.117 R)
• M7: 883,076 km (0.064 R)
• M8: 1,028,635 km (0.086 R)
• M9: 1,137,393 km (0.07 R)
• M10: 1,239,867 km (0.046 R)
• M11: 1,361,939 km (0.077 R)
• M12: 1,471,744 km (0.101 R)
• M13: 1,567,486 km (0.037 R)
• M14: 1,730,099 km (0.105 R)
• M15: 1,898,547 km (0.111 R)
• M16: 1,991,148 km (0.062 R)
• M17: 2,098,110 km (0.108 R)
• M18: 2,484,671 km (0.095 R)
• M19: 2,600,310 km (0.099 R)
• M20: 2,830,093 km (0.06 R)
• M21: 3,066,906 km (0.033 R)
• M22: 3,191,371 km (0.06 R)
• M23: 3,280,382 km (0.095 R)
• M24: 3,370,141 km (0.092 R)
• M25: 3,730,073 km (0.114 R)
• M26: 3,887,001 km (0.077 R)
• M27: 3,982,295 km (0.084 R)
• M28: 4,078,337 km (0.109 R)
• M29: 4,371,399 km (0.118 R)
• M30: 4,495,416 km (0.101 R)
• M31: 4,637,684 km (0.06 R)
• M32: 4,986,695 km (0.079 R)
• M33: 5,195,085 km (0.068 R)
• M34: 5,353,210 km (0.084 R)
• M35: 5,495,179 km (0.088 R)
• M36: 5,674,546 km (0.061 R)
• M37: 5,883,086 km (0.115 R)
• M38: 6,057,367 km (0.112 R)
• M39: 6,149,819 km (0.104 R)
• M40: 6,251,994 km (0.12 R)
• M41: 6,401,742 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.5

Radius: 11.9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.3 AU - 1.8 AU

Year: 1309 Days

Day: 6.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 61,531,174 km

• M1: 148,700 km (0.119 R)
• M2: 283,488 km (0.064 R)
• M3: 387,159 km (0.112 R)
• M4: 495,319 km (0.11 R)
• M5: 601,683 km (0.025 R)
• M6: 686,205 km (0.063 R)
• M7: 775,366 km (0.11 R)
• M8: 926,011 km (0.064 R)
• M9: 1,124,228 km (0.064 R)
• M10: 1,199,925 km (0.117 R)
• M11: 1,277,416 km (0.04 R)
• M12: 1,465,461 km (0.108 R)
• M13: 1,562,999 km (0.098 R)
• M14: 1,684,622 km (0.068 R)
• M15: 2,092,276 km (0.11 R)
• M16: 2,218,985 km (0.045 R)
• M17: 2,299,618 km (0.045 R)
• M18: 2,381,149 km (0.093 R)
• M19: 2,555,730 km (0.089 R)
• M20: 2,700,242 km (0.093 R)
• M21: 2,786,560 km (0.092 R)
• M22: 2,891,428 km (0.074 R)
• M23: 3,223,086 km (0.067 R)
• M24: 3,510,613 km (0.111 R)
• M25: 3,681,454 km (0.08 R)
• M26: 4,051,110 km (0.094 R)
• M27: 4,130,547 km (0.115 R)
• M28: 4,240,501 km (0.102 R)
• M29: 4,525,036 km (0.106 R)
• M30: 4,889,606 km (0.047 R)
• M31: 5,048,779 km (0.092 R)
• M32: 5,220,367 km (0.078 R)
• M33: 5,328,676 km (0.104 R)
• M34: 5,613,810 km (0.106 R)
• M35: 5,736,031 km (0.109 R)
• M36: 5,960,428 km (0.099 R)
• M37: 6,073,674 km (0.086 R)
• M38: 6,244,963 km (0.108 R)
• M39: 6,337,115 km (0.11 R)
• M40: 6,487,611 km (0.105 R)
• M41: 6,697,945 km (0.056 R)
• M42: 6,875,069 km (0.055 R)
• M43: 6,958,246 km (0.093 R)
• M44: 7,053,689 km (0.101 R)
• M45: 7,197,752 km (0.041 R)
• M46: 7,452,218 km (0.084 R)
• M47: 7,562,172 km (0.099 R)
• M48: 7,660,309 km (0.098 R)
• M49: 7,907,743 km (0.106 R)
• M50: 8,132,589 km (0.084 R)
• M51: 8,550,416 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.5

Radius: 12.3

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.33 AU - 1.97 AU

Year: 1438 Days

Day: 10 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 61,531,174 km

• M1: 153,338 km (0.084 R)
• M2: 234,569 km (0.06 R)
• M3: 353,949 km (0.096 R)
• M4: 453,132 km (0.068 R)
• M5: 571,015 km (0.08 R)
• M6: 687,552 km (0.061 R)
• M7: 813,364 km (0.115 R)
• M8: 1,017,864 km (0.085 R)
• M9: 1,106,276 km (0.085 R)
• M10: 1,214,585 km (0.1 R)
• M11: 1,424,172 km (0.108 R)
• M12: 1,552,078 km (0.058 R)
• M13: 1,969,905 km (0.081 R)
• M14: 2,250,251 km (0.104 R)
• M15: 2,499,332 km (0.092 R)
• M16: 2,666,732 km (0.112 R)
• M17: 3,012,901 km (0.032 R)
• M18: 3,119,714 km (0.039 R)
• M19: 3,227,724 km (0.089 R)
• M20: 3,863,515 km (0.112 R)
• M21: 4,242,446 km (0.097 R)
• M22: 4,335,795 km (0.116 R)
• M23: 4,429,743 km (0.059 R)
• M24: 4,660,871 km (0.079 R)
• M25: 4,757,362 km (0.104 R)
• M26: 5,022,150 km (0.087 R)
• M27: 5,249,090 km (0.055 R)
• M28: 5,450,449 km (0.104 R)
• M29: 5,727,803 km (0.115 R)
• M30: 5,860,796 km (0.095 R)
• M31: 6,727,267 km (0.099 R)
• M32: 6,977,693 km (0.102 R)
• M33: 7,263,126 km (0.114 R)
• M34: 7,536,142 km (0.081 R)
• M35: 7,698,456 km (0.07 R)
• M36: 7,779,987 km (0.058 R)
• M37: 7,911,184 km (0.026 R)
• M38: 8,026,524 km (0.105 R)
• M39: 8,409,495 km (0.055 R)
• M40: 8,713,328 km (0.116 R)
• M41: 8,849,612 km (0.107 R)
• M42: 9,210,591 km (0.12 R)
• M43: 9,770,087 km (0.105 R)
• M44: 10,054,024 km (0.111 R)
• M45: 10,214,842 km (0.07 R)
• M46: 10,793,935 km (0.06 R)
• M47: 10,958,642 km (0.118 R)
• M48: 11,198,149 km (0.106 R)
• M49: 11,346,400 km (0.101 R)
• M50: 11,476,700 km (0.094 R)
• M51: 11,663,697 km (0.08 R)
• M52: 11,870,441 km (0.037 R)
• M53: 12,078,532 km (0.099 R)
• M54: 12,192,526 km (0.061 R)
• M55: 12,517,452 km (0.079 R)
• M56: 12,671,388 km (0.049 R)
• M57: 12,961,758 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773

Radius: 13.6

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.07 AU - 2.19 AU

Year: 2108 Days

Day: 7.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 61,531,174 km

• M1: 177,273 km (0.119 R)
• M2: 303,983 km (0.079 R)
• M3: 426,504 km (0.06 R)
• M4: 633,996 km (0.115 R)
• M5: 790,625 km (0.105 R)
• M6: 906,114 km (0.087 R)
• M7: 1,018,462 km (0.089 R)
• M8: 1,206,656 km (0.103 R)
• M9: 1,310,777 km (0.097 R)
• M10: 1,562,400 km (0.052 R)
• M11: 1,723,517 km (0.059 R)
• M12: 1,818,063 km (0.103 R)
• M13: 1,914,703 km (0.064 R)
• M14: 2,357,812 km (0.101 R)
• M15: 2,463,578 km (0.072 R)
• M16: 2,557,675 km (0.117 R)
• M17: 2,791,197 km (0.037 R)
• M18: 3,162,050 km (0.095 R)
• M19: 3,294,145 km (0.093 R)
• M20: 3,473,214 km (0.116 R)
• M21: 3,748,025 km (0.12 R)
• M22: 3,856,932 km (0.05 R)
• M23: 4,205,944 km (0.108 R)
• M24: 4,384,414 km (0.092 R)
• M25: 4,698,570 km (0.089 R)
• M26: 5,261,956 km (0.11 R)
• M27: 5,384,177 km (0.111 R)
• M28: 5,489,793 km (0.069 R)
• M29: 5,578,355 km (0.102 R)
• M30: 5,685,317 km (0.071 R)
• M31: 6,010,094 km (0.101 R)
• M32: 6,230,003 km (0.035 R)
• M33: 6,715,748 km (0.106 R)
• M34: 6,886,738 km (0.104 R)
• M35: 7,194,311 km (0.103 R)
• M36: 7,467,327 km (0.101 R)
• M37: 7,684,095 km (0.051 R)
• M38: 7,843,267 km (0.105 R)
• M39: 7,983,290 km (0.112 R)
• M40: 8,449,437 km (0.076 R)
• M41: 8,945,354 km (0.079 R)
• M42: 9,857,452 km (0.109 R)
• M43: 10,052,229 km (0.068 R)
• M44: 10,204,520 km (0.12 R)
• M45: 10,313,876 km (0.11 R)
• M46: 10,799,321 km (0.066 R)
• M47: 11,179,598 km (0.074 R)
• M48: 11,337,424 km (0.094 R)
• M49: 11,609,842 km (0.078 R)
• M50: 11,746,874 km (0.033 R)
• M51: 12,323,573 km (0.107 R)
• M52: 12,510,122 km (0.085 R)
• M53: 12,744,542 km (0.11 R)
• M54: 12,838,788 km (0.086 R)
• M55: 13,480,713 km (0.11 R)
• M56: 13,817,757 km (0.06 R)
• M57: 14,108,725 km (0.098 R)
• M58: 14,500,073 km (0.07 R)
• M59: 14,894,862 km (0.098 R)
• M60: 15,443,736 km (0.089 R)
• M61: 15,569,249 km (0.119 R)
• M62: 16,126,202 km (0.058 R)
• M63: 16,509,621 km (0.116 R)
• M64: 16,818,690 km (0.103 R)
• M65: 17,259,555 km (0.106 R)
• M66: 17,520,753 km (0.06 R)
• M67: 17,625,621 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57

Radius: 9.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.18 AU - 4.6 AU

Year: 5204 Days

Day: 10.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 82.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 61,531,174 km

• M1: 137,331 km (0.118 R)
• M2: 217,366 km (0.112 R)
• M3: 324,029 km (0.071 R)
• M4: 414,087 km (0.107 R)
• M5: 478,115 km (0.064 R)
• M6: 598,092 km (0.04 R)
• M7: 693,536 km (0.116 R)
• M8: 765,343 km (0.071 R)
• M9: 964,457 km (0.034 R)
• M10: 1,045,689 km (0.09 R)
• M11: 1,250,638 km (0.035 R)
• M12: 1,312,871 km (0.07 R)
• M13: 1,459,327 km (0.066 R)
• M14: 1,679,685 km (0.12 R)
• M15: 1,748,949 km (0.099 R)
• M16: 1,829,283 km (0.084 R)
• M17: 2,315,476 km (0.115 R)
• M18: 2,381,748 km (0.093 R)
• M19: 2,573,383 km (0.059 R)
• M20: 2,852,532 km (0.106 R)
• M21: 2,983,730 km (0.097 R)
• M22: 3,092,637 km (0.095 R)
• M23: 3,165,940 km (0.093 R)
• M24: 3,618,324 km (0.08 R)
• M25: 3,747,726 km (0.117 R)
• M26: 3,904,953 km (0.12 R)
• M27: 3,997,704 km (0.086 R)
• M28: 4,171,985 km (0.104 R)
• M29: 4,239,604 km (0.114 R)
• M30: 4,307,671 km (0.115 R)
• M31: 4,472,528 km (0.036 R)
• M32: 4,583,679 km (0.105 R)
• M33: 4,879,583 km (0.118 R)
• M34: 5,460,621 km (0.107 R)
• M35: 5,549,632 km (0.036 R)
• M36: 5,639,241 km (0.062 R)
• M37: 6,814,931 km (0.072 R)
• M38: 6,958,994 km (0.114 R)
• M39: 7,266,717 km (0.104 R)
• M40: 7,479,894 km (0.082 R)
• M41: 7,578,927 km (0.107 R)
• M42: 7,962,646 km (0.106 R)
• M43: 8,148,446 km (0.04 R)
• M44: 8,370,001 km (0.1 R)
• M45: 8,455,720 km (0.099 R)
• M46: 9,204,757 km (0.096 R)
• M47: 10,066,142 km (0.113 R)
• M48: 10,212,149 km (0.074 R)
• M49: 10,285,452 km (0.1 R)
• M50: 10,451,057 km (0.079 R)
• M51: 10,524,809 km (0.083 R)
• M52: 10,617,410 km (0.079 R)
• M53: 10,934,258 km (0.115 R)
• M54: 11,065,605 km (0.111 R)
• M55: 11,443,788 km (0.056 R)
• M56: 11,672,823 km (0.073 R)
• M57: 11,980,545 km (0.071 R)
• M58: 12,154,677 km (0.05 R)
• M59: 12,820,538 km (0.109 R)
• M60: 12,959,215 km (0.11 R)
• M61: 13,078,295 km (0.111 R)
• M62: 13,277,709 km (0.095 R)
• M63: 13,478,170 km (0.025 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 799.8

Radius: 6.8

Gravity: 17.3 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.66 AU - 9 AU

Year: 13460 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 61,531,174 km

• M1: 86,468 km (0.053 R)
• M2: 220,806 km (0.111 R)
• M3: 651,648 km (0.086 R)
• M4: 855,700 km (0.092 R)
• M5: 898,784 km (0.051 R)
• M6: 987,645 km (0.107 R)
• M7: 1,102,836 km (0.113 R)
• M8: 1,716,037 km (0.106 R)
• M9: 1,799,214 km (0.116 R)
• M10: 2,326,247 km (0.079 R)
• M11: 2,735,247 km (0.078 R)
• M12: 2,964,731 km (0.088 R)
• M13: 3,268,863 km (0.047 R)
• M14: 3,407,391 km (0.066 R)
• M15: 3,618,623 km (0.039 R)
• M16: 3,725,885 km (0.093 R)
• M17: 4,017,152 km (0.051 R)
• M18: 4,240,352 km (0.116 R)
• M19: 4,315,749 km (0.117 R)
• M20: 4,660,273 km (0.081 R)
• M21: 4,738,064 km (0.099 R)
• M22: 5,173,543 km (0.117 R)
• M23: 5,539,310 km (0.032 R)
• M24: 5,871,567 km (0.118 R)
• M25: 6,253,041 km (0.113 R)
• M26: 7,084,656 km (0.062 R)
• M27: 7,581,770 km (0.115 R)
• M28: 7,719,400 km (0.072 R)
• M29: 8,466,940 km (0.077 R)
• M30: 8,561,935 km (0.1 R)
• M31: 8,657,378 km (0.091 R)
• M32: 8,705,250 km (0.093 R)
• M33: 9,091,212 km (0.114 R)
• M34: 9,335,356 km (0.083 R)
• M35: 9,780,110 km (0.112 R)
• M36: 10,383,887 km (0.092 R)
• M37: 10,793,038 km (0.069 R)
• M38: 11,259,783 km (0.106 R)
• M39: 12,105,609 km (0.117 R)
• M40: 12,212,871 km (0.082 R)
• M41: 12,590,456 km (0.113 R)
• M42: 12,917,028 km (0.081 R)
• M43: 14,364,836 km (0.051 R)
• M44: 14,820,511 km (0.118 R)
• M45: 15,863,209 km (0.084 R)
• M46: 16,512,015 km (0.079 R)
• M47: 17,109,359 km (0.112 R)
• M48: 17,471,087 km (0.042 R)
• M49: 18,202,321 km (0.091 R)
• M50: 20,903,161 km (0.116 R)
• M51: 21,614,050 km (0.093 R)
• M52: 21,939,725 km (0.077 R)
• M53: 22,727,956 km (0.1 R)
• M54: 24,264,775 km (0.114 R)
• M55: 24,739,000 km (0.111 R)
• M56: 25,011,567 km (0.055 R)
• M57: 25,834,655 km (0.113 R)
• M58: 26,111,112 km (0.104 R)
• M59: 27,648,678 km (0.038 R)
• M60: 27,789,899 km (0.114 R)
• M61: 28,499,741 km (0.075 R)
• M62: 28,785,323 km (0.092 R)
• M63: 29,000,146 km (0.093 R)
• M64: 29,287,374 km (0.039 R)
• M65: 30,009,482 km (0.116 R)
• M66: 30,372,856 km (0.114 R)
• M67: 30,518,564 km (0.049 R)
• M68: 32,062,863 km (0.042 R)
• M69: 33,031,359 km (0.105 R)
• M70: 33,106,308 km (0.075 R)
• M71: 34,692,345 km (0.083 R)
• M72: 34,997,375 km (0.049 R)
• M73: 37,703,002 km (0.077 R)
• M74: 37,859,631 km (0.106 R)
• M75: 38,646,067 km (0.105 R)
• M76: 39,756,083 km (0.039 R)
• M77: 41,521,487 km (0.057 R)
• M78: 42,007,381 km (0.103 R)
• M79: 42,088,613 km (0.091 R)
• M80: 46,296,651 km (0.117 R)
• M81: 46,884,721 km (0.11 R)
• M82: 49,947,438 km (0.053 R)
• M83: 52,199,185 km (0.101 R)
• M84: 52,548,646 km (0.108 R)
• M85: 52,723,526 km (0.098 R)
• M86: 53,074,183 km (0.11 R)
• M87: 54,307,019 km (0.083 R)
• M88: 55,193,536 km (0.091 R)
• M89: 55,727,750 km (0.115 R)
• M90: 55,995,381 km (0.071 R)
• M91: 56,263,610 km (0.09 R)
• M92: 57,971,868 km (0.086 R)
• M93: 59,605,776 km (0.086 R)
• M94: 60,336,860 km (0.102 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 19,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit