Difference between revisions of "Places"

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=== Star Systems ===
 
=== Star Systems ===
−
 
+
This lists the more significant stars in T-Space, although less than half of them have been mentioned in stories so far.  Distance is given in light years from our sun (Sol).  Listed in no particular order, click on a column header to sort.
−
* [[Sol]]
+
{| class="wikitable sortable"
−
* [[Alpha Centauri]]
+
! Name (or Designation)
−
* [[Tau Ceti]]
+
! Distance
−
* [[Epsilon Eridani]]
+
! Spectral Type
−
* [[Epsilon Indi]]
+
! Mass (Sol = 1)
−
* [[Delta Pavonis]]
+
! Notes, Planets
−
* [[Zeta Tucanae]]
+
|-
−
* [[Chara]]
+
|[[Sol]]  
−
* [[Alpha Mensae]]
+
| 0
−
* [[Zeta Reticuli]]
+
| G2V
−
* [[Wolf 359]]
+
| 1
−
* [[Procyon]]
+
| Earth
−
* [[Lalande 21185]]
+
|-
−
* [[82 Eridani]]
+
| [[Proxima Centauri]]
−
* [[Gliese 68]] (107 Piscium)
+
|4.2
−
* [[Kapteyn's Star]]
+
|M5.5 Ve
−
* [[Delta Trianguli]]
+
|0.1
 +
| planet b, Alpha Centauri C
 +
|-
 +
| [[Alpha Centauri]] A & B
 +
|4.3
 +
|G2, K1
 +
|1.1, 0.9
 +
| [[Sawyers World]], [[Kakuloa]]
 +
|-
 +
| [[Tau Ceti]]
 +
|11.9
 +
|G8
 +
|0.81
 +
|[[Skead]]
 +
|-
 +
| [[Epsilon Eridani]]
 +
|10.5
 +
|K2
 +
|0.85
 +
|[[Spitzer]]
 +
|-
 +
| [[Epsilon Indi]]
 +
|11.8
 +
|K4
 +
|0.77
 +
|[[Taprobane]]
 +
|-
 +
| [[Delta Pavonis]]
 +
|19.9
 +
|G6
 +
|1.1
 +
|[[Verdigris]]
 +
|-
 +
| [[Zeta Tucanae]]
 +
|28
 +
|G0
 +
|0.98
 +
|[[Ransom's Planet]]
 +
|-
 +
| [[Chara]]
 +
|27.3
 +
|G0
 +
|1.08
 +
|[[St Jacobs]] (was unnamed)
 +
|-
 +
| [[Alpha Mensae]]
 +
|33.1
 +
|G5
 +
|0.87
 +
|Hallelujah
 +
|-
 +
|[[Zeta Reticuli|Zeta 1 & 2 Reticuli]]
 +
|39.45
 +
|G2, G2
 +
|1.0, 1.05
 +
|Wide binary, 0.1 ly apart
 +
|-
 +
| [[Wolf 359]]
 +
|7.8
 +
|M6 Ve
 +
|0.1
 +
|
 +
|-
 +
| [[Procyon]]
 +
|11.4
 +
|F5
 +
|1.5
 +
|
 +
|-
 +
| [[Lalande 21185]]
 +
|8.3
 +
|M2 Vne
 +
|0.46
 +
|Dirty Snowball, gas giants
 +
|-
 +
| [[82 Eridani]]
 +
|19.8
 +
|G5
 +
|0.97
 +
|[[Tanith]]
 +
|-
 +
| [[Gliese 68]] (107 Piscium)
 +
|24.4
 +
|K1
 +
|0.89
 +
|
 +
|-
 +
| [[Wolf 25]] (HR 222, BD+04 123)
 +
|24.3
 +
|K1
 +
|0.83
 +
|
 +
|-
 +
| [[Kapteyn's Star]]
 +
|12.6
 +
|sdM1.5
 +
|0.39
 +
|
 +
|-
 +
| [[Delta Trianguli]] A & B
 +
|35~
 +
|G0, K4
 +
|1, 0.6
 +
|Very close binary (0.1 AU), Habzone (1.04 AU) stable.  Tatooine?
 +
|-
 +
| [[Xi Boötis]] A & B
 +
|21.8
 +
|G8, K4
 +
|0.94, 0.67
 +
|
 +
|-
 +
| [[HR 7722]]
 +
|28.8
 +
|K0-3
 +
|0.87
 +
|in Capricorn, aka CD-27 14659, Gl 785
 +
|-
 +
| [[Eta Cassiopeiae]] A & B
 +
|19.4
 +
|G3, K7
 +
| ~1.0, ~0.58
 +
| aka Achird
 +
|-
 +
| [[HR 511]]
 +
|32.5
 +
|K0
 +
|0.92
 +
|aka Gl 75, BD +63 238
 +
|-
 +
| [[HR 4523]] A & B
 +
|30.1
 +
|G3-5, M
 +
|~0.7, 0.07
 +
|aka Gl 442
 +
|-
 +
| [[Beta Coma Berenices]]
 +
|29.9
 +
|F9.5-G0
 +
|1.05
 +
|aka HR 4983, Gl 502
 +
|-
 +
| [[61 Cygni]] A & B
 +
|11.4
 +
|K3.5-50, K4.7-7.0
 +
| 0.7, 0.7
 +
| known dust
 +
|-
 +
| [[Sigma Draconis]]
 +
|18.8
 +
|G9
 +
|0.89
 +
|aka Alsafi
 +
|-
 +
| [[p Eridani]] A & B
 +
|26.6
 +
|K0-3, K2-5
 +
|0.88, 0.88
 +
|"small outpost" (''TEC'')
 +
|-
 +
| [[Beta Hydri]]
 +
|24.4
 +
|G2 IV
 +
|1.1
 +
|Moving off main sequence, 6.7 Gy old, good location. Primary of neptunoid Pallas and its sub-planet (or large moon) [[Raven]]
 +
|-
 +
| [[70 Ophiuchi]] A & B
 +
|16.6
 +
|K0-1, K5-6
 +
|0.92, 0.92
 +
|
 +
|-
 +
| [[36 Ophiuchi]] ABC
 +
|19.5
 +
|K0-1,K1-5,K5-6
 +
|0.85, 0.85, 0.7
 +
|Wide separation. B superJupiter ruled out.
 +
|-
 +
| [[12 Ophiuchi]]
 +
|31.9
 +
|K0-2
 +
|0.9
 +
|
 +
|-
 +
| [[Chi 1 Orionis]] A & B
 +
|28.3
 +
|G0,M
 +
|1.0, 0.15
 +
|HR 2047. Barium enriched, possibly disrupted by HR 6094 B explosion 30 mya.
 +
|-
 +
| [[HR 7703]] A & B
 +
|19.7
 +
|K3, M3-5
 +
|0.82, 0.2
 +
|Dole gives dist as 18.5ly. HJ 5173
 +
|-
 +
| [[HR 6426]] A & B
 +
|22.7
 +
|K3-4, K5
 +
|0.75, 0.65
 +
|aka Gl 667, MLO 4. Star B has 6 or 7 planets.
 +
|-
 +
| [[61 Ursa Majoris]]
 +
|31.1
 +
|G8
 +
|0.81
 +
|HR 4496, Gl 434
 +
|-
 +
| [[61 Virginis]]
 +
|27.8
 +
|G5-6
 +
|0.96
 +
|HR 5019, Gl 506, known planets
 +
|-
 +
| [[Altair]]
 +
|16.7
 +
|A7 V-VI
 +
|1.7
 +
|Alpha Aquilae, young, fast rotation, large habzone
 +
|-
 +
| [[Gliese 832]]
 +
|16.1
 +
|M1.5-3
 +
|0.45
 +
|CD-49 13515, superEarth in habzone, cold Jupiter-class
 +
|}
  
 
=== Planets, moons, etc ===
 
=== Planets, moons, etc ===
 
{| class="wikitable"
 
{| class="wikitable"
−
!Name!!Designation!!Natives?!!Pyramids?!!Notes
+
!Planet Name!!Designation!!Moons!!Natives?!!Pyramids?!!Notes
 
|-
 
|-
−
| [[Kakuloa]]||Alpha Centauri B II||treesquids||ruins?||
+
| [[Kakuloa]]||Alpha Centauri B II||2||tree squids*||ruins?||*probably not sentient
 
|-
 
|-
−
| [[Sawyers World]] ||(Alpha Centauri A II ||extinct||unclear||
+
| [[Sawyers World]] ||(Alpha Centauri A II ||1||extinct||unclear||
 
|-
 
|-
−
| [[Taprobane]] ||Epsilon Indi III||timoans||no||
+
| [[Taprobane]] ||Epsilon Indi III||1||timoans||no||
 
|-
 
|-
−
| [[Verdigris]]||Delta Pavonis III||yes (ext?)||yes||
+
| [[Verdigris]]||Delta Pavonis III||1||yes (ext?)||yes||
 
|-
 
|-
−
| [[Ransom's Planet]] ||Zeta Tucanae III||yes||yes|| (several mentions in ''[[The Chara Talisman]]'')
+
| [[Ransom's Planet]] ||Zeta Tucanae III||1||yes||yes|| (several mentions in ''[[The Chara Talisman]]'')
 
|-
 
|-
−
| [[Spitzer]] ||Epsilon Eridani II||no||no|| (small, barely habitable outpost planet)
+
| [[Spitzer]] ||Epsilon Eridani II||1||no||no|| (small, barely habitable outpost planet)
 
|-
 
|-
−
| [[Tanith]] ||82 Eridani IV||no||no||Harp City
+
| [[Tanith]] ||82 Eridani IV||1||no||no||Harp City
 
|-
 
|-
−
| [[Skead]] ||Tau Ceti III-1||tbd, probably not||tbd||Heavy planet with a supermoon.
+
| [[Skead]] ||Tau Ceti III-1||1*||tbd, probably not||tbd||Heavy planet with a *supermoon.
 
|-
 
|-
−
| none given ||Chara III||yes, possibly extinct||yes||edge of T-Space
+
| [[Pallas]] ||Beta Hydri N||?||no||no||Neptunoid, has habitable supermoon Raven (qv)
 
|-
 
|-
−
| Zirth (u) || Zeta 1 Reticuli III||see notes|| ||Former(?) Kesh world. Modern city ruins
+
| [[Raven]] ||Beta Hydri N-n||0||yes||tbd||Technically a supermoon of Pallas, a neptunoid
 +
|-
 +
| [[St Jacobs]] ||Chara III||2||yes, possibly extinct||yes||edge of T-Space
 +
|-
 +
| Zirth (u) || Zeta 1 Reticuli III||1||see notes|| ||Former(?) Kesh world. Modern city ruins
 
|}
 
|}
 
==== Table of planet moons ====
 
==== Table of planet moons ====
Line 76: Line 304:
 
|''α''  Cen B||Kakuloa||2||Mahina'uku  ||231||3.230||0.21|| ||37?||Resonant with moon 1?
 
|''α''  Cen B||Kakuloa||2||Mahina'uku  ||231||3.230||0.21|| ||37?||Resonant with moon 1?
 
|-
 
|-
−
|''α''  Cen A||Sawyers World||1|| ||1438||3.287||1.322|| ||31.4?||
+
|''α''  Cen A||Sawyers World||1||Selene ||1438||3.287||1.322|| ||31.4?||
 
|-
 
|-
−
|''δ'' Pav||Verdigris||1|| || || || || || ||
+
|''δ'' Pav||Verdigris||1||Gex|| || || || || ||
 
|-
 
|-
 
|''ε''  Indi||Taprobane||1|| || || || || || ||
 
|''ε''  Indi||Taprobane||1|| || || || || || ||
Line 88: Line 316:
 
|''ε'' Eridani||Spitzer||? || || || || || || ||
 
|''ε'' Eridani||Spitzer||? || || || || || || ||
 
|-
 
|-
−
|82 Eridani||Tanith||1|| || || || || || ||
+
|82 Eridani||Tanith||1||Anaid|| || || || || ||
 
|-
 
|-
−
|Chara||III||1|| || || || || || ||
+
|Chara||St Jacobs||1|| || || || || || ||
 
|-
 
|-
 +
|Chara||St Jacobs||2|| || || || || || ||
 +
|-
 +
|''β'' Hydri||Pallas||?||Raven|| || || || || ||Double planet, Raven is bigger than Mars and terraformed
 
|}
 
|}
  
Line 108: Line 339:
 
* Skead
 
* Skead
  
−
'''Veridgris (Delta Pavonis)'''
+
'''Verdigris (Delta Pavonis)'''
−
* New Toronto
+
* New Toronto - on Lake Quebec, spaceport
−
* Verdigris City
+
* Verdigris City - capital, spaceport
 +
* Louisbourg - town near first landing, spaceport
 +
* Fayetteville
  
 
'''Epsilon Eridani II'''
 
'''Epsilon Eridani II'''
Line 119: Line 352:
  
 
'''Taprobane (Epsilon Indi)'''
 
'''Taprobane (Epsilon Indi)'''
−
* Clarkeville
+
* Clarkeville - university town, mixed timoan/human
 +
 
 +
'''Raven (Beta Hydri, Pallas)'''
 +
* Ravensport - main city/spaceport
 +
* Montresor - small farming/mining town in the Rift
  
 
''more TBD''
 
''more TBD''

Latest revision as of 04:26, 24 January 2021

Places in T-Space

T-Space, Terraform(ed) Space, can have several meanings depending on context. In general it refers to the roughly 50 lightyear diameter sphere of explored (for various values of explored) space centered on the Solar System. It could also refer to the set of stars with terraformed planets, a set of as-yet undetermined extent, which the above spheroid is included in. At its most restricted it refers just to the dozen or so settled systems between which regular travel occurs (thus including e.g. DeltaPavonis but excluding Chara ).

As far as possible, the astronomy or stellar cartography of the T-Space stories is accurate. If I write that Verdigris, a planet around Delta Pavonis, is 19.9 light years from here and 16.5 light years from Alpha Centauri, you can trust those numbers (for the stars, anyway). I spend a fair bit of time working out 3-D relationships between stars using the best data we have (as well as some great tools like Celestia for visualizing same). Of course, I have no way of knowing if there’s actually a planet matching Verdigris’ description orbiting Delta Pavonis, (I'd be as surprised as anybody if there was) and indeed the rate at which we’re discovering exoplanets — planets around other stars — is a little scary in that any time now we could discover planets around Delta Pavonis, or any of the other stars mentioned in my stories, that would make that aspect obsolete. That’s an occupational hazard of writing “hard” science fiction; look at how much what we know about the Solar System has changed since the early days of Heinlein and Clarke. For that matter, Larry Niven’s first sold story was rendered obsolete by astronomical observation before it saw print (but they went ahead and printed it anyway, it’s still a good story, titled “The Coldest Place”). To say nothing of canals on Mars or rainy swamps on Venus.

Naming/numbering Conventions

All stars mentioned in the T-space series are real and as described (although their planets may be fictional). There may be one or two exceptions further from Earth for story reasons. If so, these will be located in areas not visible from Earth (e.g. occluded by a nearer star.) Many stars have multiple names: some have a common name (like Sirius or Chara), most have a constellation name (such as Alpha Centauri or Epsilon Eridani) and all will have one or more catalog numbers (Wolf 359, BD +5 3189, etc).

Planets, other than a proper name (Mars, Kakuloa, Sawyers World) are labelled in traditional science fiction notation, a roman numeral indicating its position from the primary. Thus, Earth is Sol III, Mars is Sol IV, etc. This differs from the current astronomical naming convention where exoplanets are labelled with a lower-case letter indicating the order of discovery. The primary star is always "a", the first planet discovered is "b", the second "c", and so on (thus, Proxima Centauri b is the first planet discovered around Proxima Centauri). Given the current state of the art, we can't be sure we've discovered all the planets in a star system, or even be completely certain of their distance order, so this makes more sense than the science fictional roman numeral system. When we can visit the star system and photograph it from multiple different angles, picking out all the planets and determining their sequence is much easier.

Star Systems

This lists the more significant stars in T-Space, although less than half of them have been mentioned in stories so far. Distance is given in light years from our sun (Sol). Listed in no particular order, click on a column header to sort.

Name (or Designation) Distance Spectral Type Mass (Sol = 1) Notes, Planets
Sol 0 G2V 1 Earth
Proxima Centauri 4.2 M5.5 Ve 0.1 planet b, Alpha Centauri C
Alpha Centauri A & B 4.3 G2, K1 1.1, 0.9 Sawyers World, Kakuloa
Tau Ceti 11.9 G8 0.81 Skead
Epsilon Eridani 10.5 K2 0.85 Spitzer
Epsilon Indi 11.8 K4 0.77 Taprobane
Delta Pavonis 19.9 G6 1.1 Verdigris
Zeta Tucanae 28 G0 0.98 Ransom's Planet
Chara 27.3 G0 1.08 St Jacobs (was unnamed)
Alpha Mensae 33.1 G5 0.87 Hallelujah
Zeta 1 & 2 Reticuli 39.45 G2, G2 1.0, 1.05 Wide binary, 0.1 ly apart
Wolf 359 7.8 M6 Ve 0.1
Procyon 11.4 F5 1.5
Lalande 21185 8.3 M2 Vne 0.46 Dirty Snowball, gas giants
82 Eridani 19.8 G5 0.97 Tanith
Gliese 68 (107 Piscium) 24.4 K1 0.89
Wolf 25 (HR 222, BD+04 123) 24.3 K1 0.83
Kapteyn's Star 12.6 sdM1.5 0.39
Delta Trianguli A & B 35~ G0, K4 1, 0.6 Very close binary (0.1 AU), Habzone (1.04 AU) stable. Tatooine?
Xi Boötis A & B 21.8 G8, K4 0.94, 0.67
HR 7722 28.8 K0-3 0.87 in Capricorn, aka CD-27 14659, Gl 785
Eta Cassiopeiae A & B 19.4 G3, K7 ~1.0, ~0.58 aka Achird
HR 511 32.5 K0 0.92 aka Gl 75, BD +63 238
HR 4523 A & B 30.1 G3-5, M ~0.7, 0.07 aka Gl 442
Beta Coma Berenices 29.9 F9.5-G0 1.05 aka HR 4983, Gl 502
61 Cygni A & B 11.4 K3.5-50, K4.7-7.0 0.7, 0.7 known dust
Sigma Draconis 18.8 G9 0.89 aka Alsafi
p Eridani A & B 26.6 K0-3, K2-5 0.88, 0.88 "small outpost" (TEC)
Beta Hydri 24.4 G2 IV 1.1 Moving off main sequence, 6.7 Gy old, good location. Primary of neptunoid Pallas and its sub-planet (or large moon) Raven
70 Ophiuchi A & B 16.6 K0-1, K5-6 0.92, 0.92
36 Ophiuchi ABC 19.5 K0-1,K1-5,K5-6 0.85, 0.85, 0.7 Wide separation. B superJupiter ruled out.
12 Ophiuchi 31.9 K0-2 0.9
Chi 1 Orionis A & B 28.3 G0,M 1.0, 0.15 HR 2047. Barium enriched, possibly disrupted by HR 6094 B explosion 30 mya.
HR 7703 A & B 19.7 K3, M3-5 0.82, 0.2 Dole gives dist as 18.5ly. HJ 5173
HR 6426 A & B 22.7 K3-4, K5 0.75, 0.65 aka Gl 667, MLO 4. Star B has 6 or 7 planets.
61 Ursa Majoris 31.1 G8 0.81 HR 4496, Gl 434
61 Virginis 27.8 G5-6 0.96 HR 5019, Gl 506, known planets
Altair 16.7 A7 V-VI 1.7 Alpha Aquilae, young, fast rotation, large habzone
Gliese 832 16.1 M1.5-3 0.45 CD-49 13515, superEarth in habzone, cold Jupiter-class

Planets, moons, etc

Planet Name Designation Moons Natives? Pyramids? Notes
Kakuloa Alpha Centauri B II 2 tree squids* ruins? *probably not sentient
Sawyers World (Alpha Centauri A II 1 extinct unclear
Taprobane Epsilon Indi III 1 timoans no
Verdigris Delta Pavonis III 1 yes (ext?) yes
Ransom's Planet Zeta Tucanae III 1 yes yes (several mentions in The Chara Talisman)
Spitzer Epsilon Eridani II 1 no no (small, barely habitable outpost planet)
Tanith 82 Eridani IV 1 no no Harp City
Skead Tau Ceti III-1 1* tbd, probably not tbd Heavy planet with a *supermoon.
Pallas Beta Hydri N ? no no Neptunoid, has habitable supermoon Raven (qv)
Raven Beta Hydri N-n 0 yes tbd Technically a supermoon of Pallas, a neptunoid
St Jacobs Chara III 2 yes, possibly extinct yes edge of T-Space
Zirth (u) Zeta 1 Reticuli III 1 see notes Former(?) Kesh world. Modern city ruins

Table of planet moons

Note: This table is provisional, and needs considerable work. In general, any Terraformed planet will have at least one large moon to help stabilize the rotation and help keep tectonic forces working. Additional smaller moons may also be possible.

It may not be good to have two large similar-sized moons because of gravitational interactions (this may also cause smaller moons to collide or be ejected). It works for the gas giants because their gravity dominates. We don't know how long Pluto/Charon has had its moons.

Star Planet Moon # Name R (km) Dens Grav (m/s2) Orbit (km) Period Notes
Sol Earth 1 Luna 1737 3.346 1.62 384,400 27.3d Earth's Moon
α Cen B Kakuloa 1 Mahina Nui 1650 3.470 1.60 25?
α Cen B Kakuloa 2 Mahina'uku 231 3.230 0.21 37? Resonant with moon 1?
α Cen A Sawyers World 1 Selene 1438 3.287 1.322 31.4?
δ Pav Verdigris 1 Gex
ε Indi Taprobane 1
τ Cet Skead 1 III-2 2865 4.47 5.71 Could be considered a double planet
ζ Tucanae Ransom's Planet 1
ε Eridani Spitzer ?
82 Eridani Tanith 1 Anaid
Chara St Jacobs 1
Chara St Jacobs 2
β Hydri Pallas ? Raven Double planet, Raven is bigger than Mars and terraformed

Countries, cities, settlements, etc.

Kakuloa

  • Kreschet Spaceport (Note, original landing vehicle was Krechet (Кречет), the extra 's' spelling is closer to how it is actually pronounced.)
  • Chandrasekhar Valley - the first landing site, later a historical preserve
  • Kakuloa City - mentioned in the Jason Curtis story "Renee (and the Space Raiders)"

Sawyers World

  • Sawyer City
  • Camp Anderson - original settlement of the USS Anderson crew. Later a historical preserve.

Skead (Tau Ceti)

  • Skead

Verdigris (Delta Pavonis)

  • New Toronto - on Lake Quebec, spaceport
  • Verdigris City - capital, spaceport
  • Louisbourg - town near first landing, spaceport
  • Fayetteville

Epsilon Eridani II

  • Spitzer Spaceport

Tanith (82 Eridani)

  • Harp City

Taprobane (Epsilon Indi)

  • Clarkeville - university town, mixed timoan/human

Raven (Beta Hydri, Pallas)

  • Ravensport - main city/spaceport
  • Montresor - small farming/mining town in the Rift

more TBD

Retrieved from "http://www.alastairmayer.org/wiki/index.php?title=Places&oldid=376"