Alfa 177
Alfa 177 was an uninhabited planet in the Alpha Quadrant. A species of dog was indigenous to this planet.

This planet had a nighttime temperature that reached 120° below zero. The planet was capable of supporting life despite this, and it was also rich in a soft yellow magnetic ore with highly unusual properties.

In 2266, the  was on a specimen-gathering mission to this planet. While there, they brought aboard one of the dogs native to the planet. Also, Geological Technician , a member of a landing party from the ship, became covered with the yellow magnetic ore, which damaged the transporters and caused the device to divide transporter signals. ()

In 2293, the location of Alfa 177 in the Milky Way Galaxy was labeled in the star chart The Explored Galaxy, which was on display in James T. Kirk's quarters aboard the . (, okudagram)

Appendices

Background information 

This planet's name was spelled "Alfa" in script sources, on screen in the "The Explored Galaxy" star chart, and in such reference books as the  (the planet's name is given as "Alfa 117"), Star Trek Maps (p. 22), and Star Trek: The Original Series 365 (p. 043). However, The Star Trek Compendium (4th ed., p. 34) used "Alpha".

This planet was unnamed in the revised story outline of . In the final draft and revised final draft of the episode's script (dated 8 June and  respectively), it was called "Reconnaissance Planet Alfa 177" and the lowest night-time surface temperature was said to be 250 degrees below zero, rather than (as it is, on-screen) 120 degrees below zero.

The surface of Alfa 177 was represented with a set built on Desilu Stage 10. (To Boldly Go: Rare Photos from the TOS Soundstage - Season One, p. 43)

For the pre-remastered version of "The Enemy Within", the brown/red planet model for Alfa 177 was first used for Delta Vega in . It was used later for M-113 in (), Tantalus V (), Planet Q (), Benecia (), Gothos (), Lazarus' planet (), Beta III (), Janus VI (), Organia (), Mudd (), Argus X (), and Ardana (). For the remastered version of "The Enemy Within", a new planet model was created by CGI artist Max Gabl.

Both StarTrek.com and the Star Trek: Encyclopedia (4th ed., vol. 1, p. 16) classified Alfa 177 as a M-class planet.

Apocrypha 
FASA's RPG sourcebook The Federation describes it as the second planet in the  system.

External links 
 
 

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Planets