skymap.sh -- legend

[38;5;255mSTARS[0m
  [38;5;252m●[0m  bright, mag < 0.8      [38;5;252m•[0m  ordinary, mag < 3.0      [38;5;252m·[0m  faint, mag < 4.2 (5.5 once fully dark)
  colour by temperature:  [38;5;117mblue-white[0m -> [38;5;255mwhite[0m -> [38;5;222myellow[0m -> [38;5;216morange-red[0m
  [38;5;231m★[0m  the 3 brightest named stars, always labelled

[38;5;255mCONSTELLATIONS[0m
  [38;5;61m─ ╱ │ ╲[0m  asterism lines        [38;5;104mNAME[0m  asterism name

[38;5;255mSOLAR SYSTEM[0m
  [38;5;227m☀[0m  Sun        [38;5;180m◆[0m  planet
  [38;5;253m○ ◔ ◑ ◕ ● ◕ ◐ ◔[0m  Moon, by phase (new -> full -> new)

[38;5;255mDEEP SKY  --  ?dso=1[0m
  [38;5;120m✺[0m  galaxy      [38;5;221m⁂[0m  open/globular cluster      [38;5;211m✳[0m  nebula      [38;5;51m◈[0m  planetary nebula
  about 30 well-known ones (Andromeda Galaxy, Orion Nebula, Whirlpool Galaxy...) are labelled by name

[38;5;255mSATELLITE[0m
  [38;5;48mΞ[0m  ISS, marked automatically whenever a real pass is up

[38;5;255mQUADRANTS  --  ?quadrant=A[0m
  [38;5;226mA B C D...[0m  lettered cells       [38;5;240m┊ ┈[0m  cell boundaries

[38;5;255mHORIZON[0m
  [38;5;239m─[0m  horizon line      [38;5;239m∙[0m  degree ticks      [38;5;244mN E S W[0m  cardinal points