🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.5

Radius: 13.9

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.76 AU

Year: 372 Days

Day: 10.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,211,633 km

• M1: 181,612 km (0.119 R)
• M2: 303,833 km (0.111 R)
• M3: 393,742 km (0.099 R)
• M4: 489,634 km (0.111 R)
• M5: 589,864 km (0.112 R)
• M6: 719,566 km (0.104 R)
• M7: 890,855 km (0.059 R)
• M8: 980,016 km (0.052 R)
• M9: 1,134,999 km (0.059 R)
• M10: 1,294,321 km (0.118 R)
• M11: 1,636,451 km (0.09 R)
• M12: 1,899,444 km (0.101 R)
• M13: 2,033,783 km (0.116 R)
• M14: 2,144,635 km (0.068 R)
• M15: 2,273,888 km (0.097 R)
• M16: 2,411,368 km (0.096 R)
• M17: 2,523,566 km (0.105 R)
• M18: 2,654,614 km (0.06 R)
• M19: 2,782,371 km (0.084 R)
• M20: 2,924,040 km (0.108 R)
• M21: 3,055,985 km (0.065 R)
• M22: 3,171,624 km (0.09 R)
• M23: 3,288,909 km (0.042 R)
• M24: 3,401,257 km (0.073 R)
• M25: 3,508,668 km (0.043 R)
• M26: 3,636,425 km (0.106 R)
• M27: 3,876,978 km (0.083 R)
• M28: 4,002,641 km (0.087 R)
• M29: 4,122,917 km (0.091 R)
• M30: 4,210,582 km (0.11 R)
• M31: 4,353,597 km (0.115 R)
• M32: 4,456,670 km (0.083 R)
• M33: 4,588,466 km (0.049 R)
• M34: 4,742,701 km (0.103 R)
• M35: 4,848,916 km (0.028 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.2

Radius: 8.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.64 AU - 0.94 AU

Year: 476 Days

Day: 12.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,211,633 km

• M1: 110,852 km (0.093 R)
• M2: 170,542 km (0.065 R)
• M3: 239,955 km (0.105 R)
• M4: 338,091 km (0.114 R)
• M5: 405,410 km (0.106 R)
• M6: 505,641 km (0.052 R)
• M7: 574,755 km (0.109 R)
• M8: 842,236 km (0.052 R)
• M9: 903,870 km (0.117 R)
• M10: 982,559 km (0.112 R)
• M11: 1,199,775 km (0.092 R)
• M12: 1,329,925 km (0.094 R)
• M13: 1,391,111 km (0.103 R)
• M14: 1,495,081 km (0.115 R)
• M15: 1,552,676 km (0.112 R)
• M16: 1,611,019 km (0.065 R)
• M17: 1,745,807 km (0.08 R)
• M18: 1,819,559 km (0.101 R)
• M19: 2,010,147 km (0.071 R)
• M20: 2,118,156 km (0.078 R)
• M21: 2,389,676 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.2

Radius: 8.4

Gravity: 11.43 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.65 AU - 0.99 AU

Year: 504 Days

Day: 9.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 62,211,633 km

• M1: 104,719 km (0.113 R)
• M2: 182,809 km (0.08 R)
• M3: 235,766 km (0.073 R)
• M4: 401,221 km (0.109 R)
• M5: 531,372 km (0.11 R)
• M6: 606,320 km (0.084 R)
• M7: 689,796 km (0.077 R)
• M8: 744,698 km (0.098 R)
• M9: 834,756 km (0.054 R)
• M10: 918,681 km (0.113 R)
• M11: 995,275 km (0.109 R)
• M12: 1,311,973 km (0.117 R)
• M13: 1,440,179 km (0.104 R)
• M14: 1,536,071 km (0.096 R)
• M15: 1,597,256 km (0.086 R)
• M16: 1,671,607 km (0.098 R)
• M17: 1,760,019 km (0.113 R)
• M18: 1,824,047 km (0.109 R)
• M19: 1,954,646 km (0.106 R)
• M20: 2,014,485 km (0.034 R)
• M21: 2,081,505 km (0.119 R)
• M22: 2,176,948 km (0.072 R)
• M23: 2,329,688 km (0.083 R)
• M24: 2,493,198 km (0.103 R)
• M25: 2,609,286 km (0.096 R)
• M26: 2,727,169 km (0.093 R)
• M27: 2,801,669 km (0.084 R)
• M28: 3,161,452 km (0.065 R)
• M29: 3,303,121 km (0.089 R)
• M30: 3,471,119 km (0.076 R)
• M31: 3,560,280 km (0.113 R)
• M32: 3,699,555 km (0.09 R)
• M33: 3,782,283 km (0.101 R)
• M34: 3,857,231 km (0.115 R)
• M35: 3,983,492 km (0.036 R)
• M36: 4,042,733 km (0.112 R)
• M37: 4,248,580 km (0.108 R)
• M38: 4,309,167 km (0.095 R)
• M39: 4,413,885 km (0.059 R)
• M40: 4,501,849 km (0.058 R)
• M41: 4,616,889 km (0.12 R)
• M42: 4,759,905 km (0.105 R)
• M43: 4,986,396 km (0.081 R)
• M44: 5,041,299 km (0.081 R)
• M45: 5,151,702 km (0.118 R)
• M46: 5,337,502 km (0.073 R)
• M47: 5,393,602 km (0.113 R)
• M48: 5,544,396 km (0.095 R)
• M49: 5,658,390 km (0.101 R)
• M50: 5,715,686 km (0.082 R)
• M51: 6,181,085 km (0.043 R)
• M52: 6,259,773 km (0.118 R)
• M53: 6,319,014 km (0.036 R)
• M54: 6,378,554 km (0.042 R)
• M55: 6,658,452 km (0.086 R)
• M56: 6,789,948 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.4

Radius: 14.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.92 AU - 2.2 AU

Year: 2005 Days

Day: 10.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 62,211,633 km

• M1: 202,406 km (0.102 R)
• M2: 357,689 km (0.074 R)
• M3: 461,509 km (0.09 R)
• M4: 604,375 km (0.104 R)
• M5: 786,137 km (0.07 R)
• M6: 1,026,391 km (0.078 R)
• M7: 1,326,036 km (0.099 R)
• M8: 1,464,713 km (0.117 R)
• M9: 1,617,602 km (0.072 R)
• M10: 1,738,477 km (0.051 R)
• M11: 1,989,502 km (0.083 R)
• M12: 2,357,363 km (0.07 R)
• M13: 2,517,134 km (0.083 R)
• M14: 2,658,653 km (0.097 R)
• M15: 2,881,704 km (0.094 R)
• M16: 3,018,586 km (0.099 R)
• M17: 3,146,043 km (0.101 R)
• M18: 3,311,050 km (0.088 R)
• M19: 3,686,540 km (0.081 R)
• M20: 3,910,937 km (0.101 R)
• M21: 4,360,479 km (0.119 R)
• M22: 4,492,125 km (0.108 R)
• M23: 4,665,060 km (0.091 R)
• M24: 4,759,157 km (0.026 R)
• M25: 4,963,059 km (0.079 R)
• M26: 5,156,040 km (0.056 R)
• M27: 5,323,291 km (0.117 R)
• M28: 5,606,330 km (0.074 R)
• M29: 5,894,306 km (0.066 R)
• M30: 6,025,503 km (0.044 R)
• M31: 6,187,218 km (0.047 R)
• M32: 6,290,890 km (0.089 R)
• M33: 6,545,206 km (0.099 R)
• M34: 6,726,668 km (0.034 R)
• M35: 6,986,669 km (0.088 R)
• M36: 7,079,270 km (0.089 R)
• M37: 7,218,995 km (0.071 R)
• M38: 7,406,591 km (0.117 R)
• M39: 7,770,861 km (0.07 R)
• M40: 8,108,653 km (0.109 R)
• M41: 8,632,545 km (0.099 R)
• M42: 8,732,028 km (0.093 R)
• M43: 8,882,074 km (0.087 R)
• M44: 9,066,529 km (0.036 R)
• M45: 9,337,151 km (0.06 R)
• M46: 9,955,738 km (0.067 R)
• M47: 10,165,026 km (0.09 R)
• M48: 10,287,696 km (0.09 R)
• M49: 10,393,312 km (0.071 R)
• M50: 11,124,397 km (0.044 R)
• M51: 11,432,419 km (0.09 R)
• M52: 11,541,925 km (0.103 R)
• M53: 11,909,038 km (0.094 R)
• M54: 12,001,489 km (0.089 R)
• M55: 12,224,240 km (0.101 R)
• M56: 12,504,736 km (0.088 R)
• M57: 12,711,780 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 13.5

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.66 AU - 4.24 AU

Year: 4346 Days

Day: 7.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 62,211,633 km

• M1: 182,659 km (0.081 R)
• M2: 337,942 km (0.082 R)
• M3: 500,854 km (0.109 R)
• M4: 587,471 km (0.111 R)
• M5: 737,518 km (0.102 R)
• M6: 822,489 km (0.086 R)
• M7: 984,952 km (0.082 R)
• M8: 1,281,156 km (0.064 R)
• M9: 1,365,230 km (0.096 R)
• M10: 1,484,011 km (0.118 R)
• M11: 1,651,860 km (0.09 R)
• M12: 1,982,621 km (0.112 R)
• M13: 2,081,206 km (0.073 R)
• M14: 2,270,596 km (0.056 R)
• M15: 2,518,779 km (0.102 R)
• M16: 3,229,220 km (0.09 R)
• M17: 3,690,579 km (0.052 R)
• M18: 4,157,026 km (0.107 R)
• M19: 4,365,116 km (0.079 R)
• M20: 4,775,164 km (0.058 R)
• M21: 5,352,761 km (0.113 R)
• M22: 5,474,534 km (0.097 R)
• M23: 5,667,665 km (0.089 R)
• M24: 6,334,123 km (0.105 R)
• M25: 6,592,778 km (0.119 R)
• M26: 6,836,174 km (0.108 R)
• M27: 6,949,569 km (0.085 R)
• M28: 7,101,561 km (0.115 R)
• M29: 7,351,239 km (0.111 R)
• M30: 7,603,611 km (0.075 R)
• M31: 7,740,792 km (0.067 R)
• M32: 7,858,975 km (0.094 R)
• M33: 8,097,284 km (0.079 R)
• M34: 8,847,068 km (0.045 R)
• M35: 8,950,141 km (0.097 R)
• M36: 9,115,746 km (0.116 R)
• M37: 9,408,210 km (0.063 R)
• M38: 9,618,993 km (0.089 R)
• M39: 9,831,422 km (0.111 R)
• M40: 10,002,413 km (0.069 R)
• M41: 10,088,282 km (0.104 R)
• M42: 10,260,918 km (0.084 R)
• M43: 10,434,451 km (0.074 R)
• M44: 10,565,200 km (0.072 R)
• M45: 10,718,388 km (0.101 R)
• M46: 10,916,605 km (0.1 R)
• M47: 11,049,448 km (0.039 R)
• M48: 11,182,740 km (0.089 R)
• M49: 11,473,409 km (0.091 R)
• M50: 11,948,382 km (0.082 R)
• M51: 12,360,674 km (0.117 R)
• M52: 12,499,201 km (0.12 R)
• M53: 12,661,365 km (0.088 R)
• M54: 12,800,940 km (0.103 R)
• M55: 13,246,443 km (0.027 R)
• M56: 13,482,807 km (0.105 R)
• M57: 13,792,475 km (0.049 R)
• M58: 13,888,218 km (0.115 R)
• M59: 14,491,396 km (0.083 R)
• M60: 14,784,159 km (0.09 R)
• M61: 15,325,703 km (0.088 R)
• M62: 15,748,766 km (0.047 R)
• M63: 15,848,847 km (0.076 R)
• M64: 16,225,983 km (0.033 R)
• M65: 16,428,389 km (0.107 R)
• M66: 16,606,261 km (0.111 R)
• M67: 16,759,150 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.6

Radius: 3.3

Gravity: 30.82 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.52 AU - 6.3 AU

Year: 9745 Days

Day: 18.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 62,211,633 km

• M1: 42,187 km (0.106 R)
• M2: 96,042 km (0.11 R)
• M3: 123,269 km (0.083 R)
• M4: 480,957 km (0.073 R)
• M5: 572,661 km (0.082 R)
• M6: 772,823 km (0.066 R)
• M7: 864,825 km (0.108 R)
• M8: 960,418 km (0.032 R)
• M9: 1,214,286 km (0.077 R)
• M10: 1,487,900 km (0.117 R)
• M11: 1,641,537 km (0.076 R)
• M12: 1,760,019 km (0.079 R)
• M13: 1,922,333 km (0.099 R)
• M14: 2,239,630 km (0.083 R)
• M15: 2,261,321 km (0.114 R)
• M16: 2,710,713 km (0.093 R)
• M17: 2,921,646 km (0.102 R)
• M18: 3,041,175 km (0.114 R)
• M19: 3,113,730 km (0.107 R)
• M20: 3,260,336 km (0.043 R)
• M21: 3,509,865 km (0.084 R)
• M22: 3,611,293 km (0.07 R)
• M23: 3,636,874 km (0.062 R)
• M24: 3,974,217 km (0.089 R)
• M25: 4,540,146 km (0.032 R)
• M26: 5,775,226 km (0.055 R)
• M27: 5,835,065 km (0.104 R)
• M28: 6,167,771 km (0.113 R)
• M29: 6,631,374 km (0.118 R)
• M30: 7,074,184 km (0.11 R)
• M31: 7,202,389 km (0.104 R)
• M32: 7,624,555 km (0.047 R)
• M33: 8,800,394 km (0.101 R)
• M34: 8,834,801 km (0.102 R)
• M35: 9,251,282 km (0.102 R)
• M36: 9,356,449 km (0.071 R)
• M37: 9,462,065 km (0.054 R)
• M38: 9,603,286 km (0.05 R)
• M39: 10,869,332 km (0.111 R)
• M40: 11,240,485 km (0.118 R)
• M41: 11,352,683 km (0.12 R)
• M42: 12,186,691 km (0.095 R)
• M43: 12,224,988 km (0.071 R)
• M44: 12,263,435 km (0.075 R)
• M45: 12,883,518 km (0.114 R)
• M46: 13,633,004 km (0.095 R)
• M47: 13,752,682 km (0.097 R)
• M48: 14,315,619 km (0.108 R)
• M49: 14,437,242 km (0.03 R)
• M50: 14,927,025 km (0.089 R)
• M51: 15,050,294 km (0.117 R)
• M52: 15,713,611 km (0.114 R)
• M53: 15,755,498 km (0.041 R)
• M54: 15,839,123 km (0.095 R)
• M55: 16,090,897 km (0.065 R)
• M56: 16,428,838 km (0.083 R)
• M57: 17,673,193 km (0.108 R)
• M58: 17,803,643 km (0.034 R)
• M59: 17,847,176 km (0.1 R)
• M60: 18,196,935 km (0.094 R)
• M61: 18,504,658 km (0.08 R)
• M62: 18,725,614 km (0.119 R)
• M63: 18,991,898 km (0.107 R)
• M64: 19,843,410 km (0.086 R)
• M65: 19,888,588 km (0.07 R)
• M66: 19,933,767 km (0.106 R)
• M67: 21,305,430 km (0.089 R)
• M68: 21,583,382 km (0.086 R)
• M69: 21,676,283 km (0.102 R)
• M70: 22,471,545 km (0.096 R)
• M71: 23,085,943 km (0.071 R)
• M72: 23,323,804 km (0.094 R)
• M73: 23,849,940 km (0.119 R)
• M74: 25,011,118 km (0.089 R)
• M75: 27,388,378 km (0.11 R)
• M76: 27,943,087 km (0.112 R)
• M77: 28,145,792 km (0.109 R)
• M78: 28,603,562 km (0.089 R)
• M79: 29,526,581 km (0.075 R)
• M80: 31,086,438 km (0.116 R)
• M81: 31,296,473 km (0.067 R)
• M82: 31,559,616 km (0.044 R)
• M83: 31,717,890 km (0.107 R)
• M84: 32,035,187 km (0.091 R)
• M85: 32,088,145 km (0.088 R)
• M86: 32,939,955 km (0.091 R)
• M87: 33,637,380 km (0.083 R)
• M88: 33,906,956 km (0.033 R)
• M89: 34,285,588 km (0.04 R)
• M90: 34,556,809 km (0.071 R)
• M91: 34,611,263 km (0.086 R)
• M92: 35,923,834 km (0.097 R)
• M93: 36,144,192 km (0.111 R)
• M94: 36,309,797 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 466.5

Radius: 6.4

Gravity: 11.39 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.66 AU - 9.08 AU

Year: 17917 Days

Day: 20.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 62,211,633 km

• M1: 108,458 km (0.094 R)
• M2: 171,738 km (0.059 R)
• M3: 402,418 km (0.088 R)
• M4: 452,085 km (0.083 R)
• M5: 539,899 km (0.108 R)
• M6: 712,684 km (0.111 R)
• M7: 1,038,808 km (0.092 R)
• M8: 1,433,148 km (0.096 R)
• M9: 1,485,507 km (0.117 R)
• M10: 1,927,718 km (0.093 R)
• M11: 2,254,290 km (0.118 R)
• M12: 2,727,169 km (0.052 R)
• M13: 2,858,516 km (0.107 R)
• M14: 3,025,467 km (0.103 R)
• M15: 3,474,710 km (0.113 R)
• M16: 3,725,286 km (0.086 R)
• M17: 4,903,818 km (0.085 R)
• M18: 5,023,496 km (0.075 R)
• M19: 5,470,944 km (0.085 R)
• M20: 5,512,233 km (0.108 R)
• M21: 6,710,811 km (0.113 R)
• M22: 6,888,384 km (0.062 R)
• M23: 7,522,230 km (0.118 R)
• M24: 8,033,256 km (0.079 R)
• M25: 9,186,805 km (0.029 R)
• M26: 10,907,630 km (0.104 R)
• M27: 11,168,827 km (0.114 R)
• M28: 11,591,292 km (0.042 R)
• M29: 11,751,062 km (0.077 R)
• M30: 12,670,192 km (0.087 R)
• M31: 14,119,945 km (0.064 R)
• M32: 15,037,877 km (0.1 R)
• M33: 15,680,101 km (0.028 R)
• M34: 16,152,830 km (0.105 R)
• M35: 16,331,300 km (0.12 R)
• M36: 16,450,679 km (0.061 R)
• M37: 16,931,038 km (0.11 R)
• M38: 17,354,999 km (0.095 R)
• M39: 18,337,408 km (0.107 R)
• M40: 19,464,029 km (0.111 R)
• M41: 19,780,878 km (0.066 R)
• M42: 21,586,823 km (0.118 R)
• M43: 21,849,218 km (0.11 R)
• M44: 22,046,537 km (0.051 R)
• M45: 22,908,820 km (0.081 R)
• M46: 23,042,410 km (0.102 R)
• M47: 23,109,430 km (0.072 R)
• M48: 26,186,808 km (0.088 R)
• M49: 26,536,568 km (0.056 R)
• M50: 28,165,539 km (0.11 R)
• M51: 29,100,526 km (0.04 R)
• M52: 29,317,592 km (0.1 R)
• M53: 29,462,702 km (0.078 R)
• M54: 29,826,524 km (0.12 R)
• M55: 29,972,532 km (0.056 R)
• M56: 30,705,711 km (0.097 R)
• M57: 31,074,619 km (0.104 R)
• M58: 31,370,673 km (0.11 R)
• M59: 31,891,124 km (0.046 R)
• M60: 33,925,356 km (0.092 R)
• M61: 35,150,413 km (0.093 R)
• M62: 35,923,535 km (0.063 R)
• M63: 36,156,459 km (0.1 R)
• M64: 37,171,929 km (0.092 R)
• M65: 38,991,488 km (0.039 R)
• M66: 39,550,984 km (0.11 R)
• M67: 40,193,657 km (0.067 R)
• M68: 41,083,016 km (0.107 R)
• M69: 41,245,330 km (0.097 R)
• M70: 43,045,740 km (0.062 R)
• M71: 43,955,445 km (0.097 R)
• M72: 44,038,472 km (0.113 R)
• M73: 44,204,675 km (0.108 R)
• M74: 44,871,582 km (0.074 R)
• M75: 45,038,683 km (0.115 R)
• M76: 45,206,233 km (0.038 R)
• M77: 46,046,524 km (0.086 R)
• M78: 46,637,884 km (0.116 R)
• M79: 46,892,051 km (0.077 R)
• M80: 46,976,873 km (0.106 R)
• M81: 47,316,610 km (0.055 R)
• M82: 47,401,731 km (0.078 R)
• M83: 48,426,776 km (0.074 R)
• M84: 49,804,722 km (0.087 R)
• M85: 50,933,886 km (0.097 R)
• M86: 51,457,928 km (0.066 R)
• M87: 52,071,428 km (0.109 R)
• M88: 52,863,848 km (0.1 R)
• M89: 53,837,731 km (0.095 R)
• M90: 54,282,335 km (0.09 R)
• M91: 55,444,112 km (0.086 R)
• M92: 57,156,858 km (0.091 R)
• M93: 59,069,916 km (0.104 R)
• M94: 59,528,583 km (0.052 R)
• M95: 61,096,668 km (0.117 R)
• M96: 62,025,372 km (0.081 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: 545 - 13,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit