Stellar Density

Stellar Density refers to the number of stellar systems contained within a specified volume of space, usually within a Sector.

• In this case, it's the density of Charted Space.

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Please see the following AAB Library Data articles for related information:
Travelling in Charted Space

• Astrography: (Physical Astrography)
  • Anomaly
  • Asteroid
  • Astrographic Feature
  • Rift
  • Star
  • Trace
  • Void
• Stellar Density
  • Imperial Stellar Density
• System Density

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Description (Specifications)

The average density in the spiral arms is 500 to 650 systems per sector, which works out to 40-50%. Overall galactic stellar density remains lower than that of individual spiral arms. Galactic stellar densities are affected by astronomic morphology and non-spiral galaxies often hold much different make-ups. A number of other factors may affect galactic stellar density. Rifts or void areas have a very low density of stars, not a complete absence.

Charted Space Sector Density

This map shows the stellar density of each sector in Charted Space.

• There is also a stellar density map by subsector over the Imperium.

Charted Space Sector Density
	-9	-8	-7	-6	-5	-4	-3	-2	-1	0	1	2	3	4	5	6	7	8
5	---	---	---	---	317	272	184	266	271	341	227	258	304	352	253	40	367	---
4	---	---	---	---	391	459	332	275	370	398	298	257	319	446	96	198	457	---
3	---	350	438	658	466	500	342	385	243	362	519	330	425	453	149	133	241	---
2	---	365	554	575	487	359	374	327	223	425	446	418	318	344	259	371	322	---
1	---	397	434	271	366	439	386	267	532	601	553	314	151	512	566	537	305	---
0	---	269	375	617	459	327	123	533	560	531	517	387	283	450	559	518	500	---
-1	271	407	228	264	158	108	234	451	496	516	346	350	417	626	514	465	377	---
-2	74	19	20	55	166	393	400	366	453	476	426	435	478	431	427	435	412	---
-3	21	49	170	460	487	472	410	485	516	400	486	451	438	429	439	385	300	153
-4	---	401	411	470	423	515	354	373	393	299	293	220	414	367	406	201	148	404
-5	---	278	362	351	444	564	459	265	237	489	451	439	400	650	609	421	---	---
-6	---	---	---	---	---	---	---	---	419	492	---	---	---	---	561	546	---	---

Notes: "---" = No known record of stellar density in the sector.

Stellar Density Key

Milky Way Galaxy - Average Stellar Density
Designation	Sector Range	Subsector Range	Remarks
Very Dense	800+ Stars	50+ stars	Stellar Core Extreme population I
Dense	700-799+ Stars	43-49 stars	Typical galactic distribution near Zone I Disc population I/II
Very High	600-699 Stars	37-42 stars	Typical galactic distribution near Zone I Intermediate population I
High	500-599 Stars	31-36 stars	Typical galactic distribution near Zone II Intermediate population II
Average	400-499 Stars	25-30 stars	Typical galactic distribution near Zone II Intermediate population III
Low	300-399 Stars	18-24 stars	Typical galactic distribution near Zone II Intermediate population IV
Very Low	200-299 Stars	12-17 stars	Typical galactic distribution near Zone III Halo population I
Sparse	100-199 Stars	6-11 stars	Typical galactic distribution near Zone IV Halo population II
Very Sparse	<100 Stars	1-5 stars	Near Void and/or deep space

Zhodani Core Expedition Stellar Density

Zhodani Core Route sectors
25	141
24	108
23	264
22	654
21	651
20	640
19	647
18	600
17	642
16	649
15	652
14	636
13	657
12	648
11	641
10	633
9	646
8	543

History & Background (Dossier)

Stellar density is an important concept within Charted Space and has long been a focus of intense study by the IISS.

References & Contributors (Sources)

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• Traveller Wiki Editorial Team
• Author & Contributor: 77topaz
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science