Procyon

( ...⦾ ..• • ✹✦ ) •

Procyon is a binary star system that consists of a white F-type main-sequence star, named Procyon A, and a faint white dwarf companion called Procyon B. Procyon A is currently in the last stage of its main sequence, showing signs of expansion as the last of its hydrogen core is used up. Although Procyon A is beginning to die, the bodies in its orbit are in no immediate danger and as it such continues to serve its vitally important role as a trading hub and academic beacon of interstellar civilization. Procyon, like Sirius, is a key member of the Dogstar Alliance and hosts one of the two largest city-stations in known space: Remus, the twin of Romulus.

Astrography

Location

Procyon is located approximately 11.4 lightyears from Sol, a little over five lightyears from Sirius, and just barely over one lightyear from Luyten's Star. Its location makes it an excellent interstellar transit hub, as it has jump links to eleven systems: Luyten's Star, Ross 614, DX Cancri, Sirius, Chaos, YZ Canis Minoris, EI Cancri, Wolf 359, Wi, Muse, and Wolf 294.

Structure

The Procyon binary system, unlike Sirius, actually has a small contingent of planets: four orbit Procyon A, and one orbits Procyon B. It is theorized that the Procyon system once had more planets, but many were ejected as Procyon B's orbit shifted after its transition from a red giant to a white dwarf. The pair orbit about a common center with an orbital period of just over 40 years, with the distance between the two ranging from 21 AU to 8.9 AU.
SYSTEM OUTLINE

Procyon A

1. Anaxagoras* (s)
2. Pyrrho* (d)
3. Pythagoras* (d)
   1. Theano* (e)
   2. Damo* (e)
4. Socrates (n)
   1. Plato* (d)
   2. Aristotle^T* (tr)
   3. Xenophon* (o)
{Socratic Belt}
• Remus (station)

Procyon B

{Cynic Belt}
1. Diogenes* (s)

Ecology

Procyon has no life endemic to any worlds in the system, nor is there any evidence that life ever existed here natively. However, the Socratic moons Aristotle and Xenophon present environments where organic water-based life is possible. Consequently, these two moons are currently undergoing terraformation by humanity and support modest young terragenid biospheres.

Population

The Procyon system is administrated by the Ecumenical Democracy of Procyon (EDP), headquartered in the citystation Remus. While the bulk of its three billion inhabitants live on Aristotle and Xenophon, most of the system's interstellar influence is held by the industry-focused habitats in the metal-rich asteroid belts around both stars. The EDP is one of the most prominent members of the Dogstar Alliance, alongside its twin sister polity the Ecumenical Democracy of Sirius.

Archive Data

DESIGNATIONS

Bayer designation

α Canis Minoris

UNAC Local Star Catalogue designation

USC 018

Other designations

• GJ 280
• HIP 37279
• ^Kipaadu/_Hsielskae
• OH^SE 18
• Aurlyspa Mae
• AM 16
• 3 Jrrv
• EZN 103
• Tinsh Hauval ikh'Bakhur
• KAZ 81

SYSTEM CHARACTERISTICS

Location

Local Interstellar Cloud, Local Bubble, Orion–Cygnus Arm, Milky Way, Virgo Supercluster

Sol-relative coordinates

RA 07h 39m 18.1s
DEC +05° 13' 30"
DIST 11.40 ly

Proximal system

Luyten's Star (1.2 ly)

System diameter (farthest orbit)

3.14e+9 km (widest point)

System diameter (heliopause)

3.37e+11 km

System mass

2.12 M_Sol

Semi-major axis

15 AU

Eccentricity

0.4

Period

40.84 years

Circumbinary stability limit

68.98 AU

Major planets

5

Biotic planetoids

2

Inhabited planetoids

28

STELLAR CHARACTERISTICS

Component stars

1. Procyon A
2. Procyon B

Stellar type

1. F5V
2. DQZ

Mass

1. 1.5 M_Sol
2. 0.602 M_Sol

Temperature

1. 6530 K
2. 7740 K

Luminosity

1. 6.93 L_Sol
2. 0.00049 L_Sol

Age

1. 1.87 Gyr
2. 1.37 Gyr

HABITATION INFORMATION

Total population

3.2 billion

Species demographics

• 95% human
• 3% skae
• 1% shyxaure
• 1% Other

Demonym

Procyonese

Administrated by

Ecumenical Democracy of Procyon

Member of

Dogstar Alliance

ERPA Restriction Level

II

Related Historical Events

• Dec. 4 2100 - May 9 2127 CE
  Odyssey Mission

Reality Check

The real Procyon system has no confirmed planets or planet candidates, and due to the nature of the system is unlikely to have any planets at all. However, the habitable zone of Procyon A is within stable orbital space, leading to the remote possibility of habitable worlds.