The Cauldron
The Cauldron Nebula is a reflection nebula located within the heart of Cauldron Sector, within the Where The Stars End region of the Empty Stars.
- It is an astrographic feature and a nebula.
Description (Specifications)
The Cauldron nebula is a large group of bright nebulae and dark clouds measuring around 20 parsecs coreward-rimward by 15 parsecs spinward-trailing.
- It is classified as a reflection nebula and is primarily formed of ionized gases, thrown off by the giant stars at its center many millennia ago.
- The gases consist of about 90% hydrogen (H2), with the remainder made up of varying concentrations of helium (He), oxygen (O2), nitrogen (N2), and other elements. The clouds have a mean density of 102–106 particles/cm³.
It is considered to contain 32 separate stars of varying ages grouped into twelve separate star systems. These include x2 Bright Giants, x6 Giants, x5 Subgiants, x11 Main Sequence, x1 Subdwarf, and x7 Dwarfs.
Stellar Components
Hex location: Cauldron Sector 1720, 0 Gas Giants
Trinary Solar System
Cauldron X-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron X-abc G4 IV
Primary Giant 1.95 4800 - 5700 5.22 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0255 0.1895 1.82 - 2.96 2.55 25.5 Orbit # * 0 5 5 8 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron X-abc M0 V
Secondary Main Sequence 0.57 3770 - 3850 0.13982 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0027 0.031 0.39 - 0.74 0.27 2.7 Orbit # * * 2 0 5 Remarks orbits primary at 2200 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron X-abc M1 V
Tertiary Main Sequence 0.5 3620 - 3660 0.08839 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0023 0.0247 0.31 - 0.59 0.23 2.3 Orbit # * * 1 0 5 Remarks orbits secondary at 0.7 AU
Hex location: Cauldron Sector 1721, 0 Gas Giants
Binary Solar System
Cauldron VI-ab Binary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VI-ab M3 III
Primary Giant 6.96 2300 - 3100 1556 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 1.5074 3.27182 31.36 - 51.12 150.74 1507.4 Orbit # 4 5 9 11 14 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VI-ab K0 IV
Secondary Giant 2.3 4000 - 5000 4.67 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.03071 0.17924 1.72 - 2.8 3.071 30.71 Orbit # * 0 5 5 9 Remarks orbits primary at 4.8 AU
Hex location: Cauldron Sector 1818, 3 Gas Giants
Quaternary Solar System
Cauldron I-abcd Quaternary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron I-abcd A2 II
Primary Supergiant 12.8 8600 - 9400 1660 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.1526 3.3794 32.39 - 52.8 15.26 152.6 Orbit # 0 5 9 8 11 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron I-abcd K1 III
Secondary Giant 4.2 3800 - 4800 140 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.19726 0.98141 9.41 - 15.33 19.726 197.26 Orbit # 0 3 7 8 11 Remarks orbits primary at 150 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron I-abcd M8 V
Tertiary Main Sequence 0.085 2420 - 2570 0.00018 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0005 0.0011 0.01 - 0.03 0.05 0.5 Orbit # * * * * 1 Remarks orbits secondary at 3 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron I-abcd D
Quaternary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits primary at 900 AU
Hex location: Cauldron Sector 1819, 3 Gas Giants
Trinary Solar System
Cauldron VIII-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VIII-abc F7 IV
Primary Giant 1.9 5800 - 6500 9.8 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.02382 0.25966 2.49 - 4.06 2.382 23.82 Orbit # * 0 5 5 8 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VIII-abc K1 V
Secondary Main Sequence 0.86 5100 - 5170 0.58985 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0037 0.0637 0.76 - 1.36 0.37 3.7 Orbit # * * 3 1 5 Remarks orbits primary at 2.8 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VIII-abc D
Tertiary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits secondary at 0.4 AU
Hex location: Cauldron Sector 1822, 4 Gas Giants
Monostellar System
Cauldron XI-a Monostellar System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron XI-a K4 V
Primary Main Sequence 0.73 4440 - 4600 0.33238 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0033 0.0478 0.58 - 1.07 0.33 3.3 Orbit # * * 2 1 5
Hex location: Cauldron Sector 1915, 1 Gas Giant
Trinary Solar System
Cauldron VII-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VII-abc M6 III
Primary Giant 7.85 2000 - 2800 2382.5 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 2.42859 4.04857 38.81 - 63.25 242.859 2428.59 Orbit # 5 6 9 12 15 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VII-abc M1 V
Secondary Main Sequence 0.5 3620 - 3660 0.08839 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0023 0.0247 0.31 - 0.59 0.23 2.3 Orbit # * * 1 0 5 Remarks orbits primary at 10 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron VII-abc M9 VI
Tertiary Main Sequence 0.058 1900 - 2400 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00049 0.00064 0.01 - 0.01 0.049 0.49 Orbit # * * * * 1 Remarks orbits primary at 41 AU
Hex location: Cauldron Sector 1920, 4 Gas Giants
Trinary Solar System
Cauldron IV-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IV-abc K1 III
Primary Giant 4.2 3800 - 4800 140 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.19726 0.98141 9.41 - 15.33 19.726 197.26 Orbit # 0 3 7 8 11 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IV-abc M0 V
Secondary Main Sequence 0.57 3770 - 3850 0.13982 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0027 0.031 0.39 - 0.74 0.27 2.7 Orbit # * * 2 0 5 Remarks orbits primary at 1 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IV-abc D
Tertiary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits secondary at 0.2 AU
Hex location: Cauldron Sector 1922, 1 Gas Giant
Binary Solar System
Cauldron V-ab Binary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron V-ab M2 III
Primary Giant 6.74 2400 - 3300 1194 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 1.20034 2.86607 27.47 - 44.78 120.034 1200.34 Orbit # 3 5 9 11 14 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron V-ab M1 V
Secondary Main Sequence 0.5 3620 - 3660 0.08839 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0023 0.0247 0.31 - 0.59 0.23 2.3 Orbit # * * 1 0 5 Remarks orbits primary at 39 AU
Hex location: Cauldron Sector 1923, 3 Gas Giants
Trinary Solar System
Cauldron IX-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IX-abc F0 IV
Primary Giant 2.5 6900 - 7400 19 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.02512 0.36154 3.47 - 5.65 2.512 25.12 Orbit # * 1 6 5 8 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IX-abc G0 IV
Secondary Giant 1.75 5400 - 6100 6.5 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.02326 0.21147 2.03 - 3.3 2.326 23.26 Orbit # * 0 5 5 8 Remarks orbits primary at 0.7 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron IX-abc M2 V
Tertiary Main Sequence 0.44 3470 - 3560 0.0565 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0021 0.0197 0.25 - 0.48 0.21 2.1 Orbit # * * 1 0 4 Remarks orbits primary at 950 AU
Hex location: Cauldron Sector 2021, 0 Gas Giants
Monostellar System
Cauldron XII-a Monostellar System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron XII-a D
Primary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0
Hex location: Cauldron Sector 2122, 2 Gas Giants
Trinary Solar System
Cauldron III-abc Trinary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron III-abc A3 III
Primary Giant 10.2 8400 - 9100 166 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.04876 1.06866 10.24 - 16.7 4.876 48.76 Orbit # * 3 7 6 9 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron III-abc F7 V
Secondary Main Sequence 1.21 6180 - 6280 1.94872 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0062 0.1158 1.29 - 2.24 0.62 6.2 Orbit # * 0 4 2 6 Remarks orbits primary at 2000 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron III-abc D
Tertiary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits secondary at 10 AU
Hex location: Cauldron Sector 2320, 0 Gas Giants
Quaternary Solar System
Cauldron II-abcd Quaternary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron II-abcd G3 II
Primary Supergiant 9.24 4900 - 5800 668 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.29962 2.14375 20.55 - 33.49 29.962 299.62 Orbit # 0 4 8 8 12 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron II-abcd D
Secondary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits primary at 1.7 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron II-abcd M0 V
Tertiary Main Sequence 0.57 3770 - 3850 0.13982 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0027 0.031 0.39 - 0.74 0.27 2.7 Orbit # * * 2 0 5 Remarks orbits primary at 320 AU Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Cauldron II-abcd D
Quaternary White Dwarf 0.53 6800 - 6800 0 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks orbits secondary at 0.4 AU
History & Background (Dossier)
The positions and types of the stars present within The Cauldron have been cataloged as part of the University of Tal Varisa Deep Sky Program. A note within the Zelig Journal indicates that one or more scout vessels of the Last Armada may have journeyed into The Cauldron as they passed through the Cauldron Cluster.
Image Repository
Worlds & Sectors (Astrography)
This astrographic feature is primarily found in the following areas:
Uncharted Space:
World Listing: 1105
The following systems and worlds are associated with this astrographic feature:
References & Contributors (Sources)
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- Traveller Wiki Editorial Team
- Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS
- Author & Contributor: WHULorigan
- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science