|Craft at least 56 astral runes simultaneously, without using pouches or familiars.|
|Release date||7 September 2010 (Update)|
|Infobox • Infobox talk page|
Astronomical! is an achievement that requires the player to craft at least 56 astral runes simultaneously, without using pouches or familiars.
Requires a full inventory (28 pieces) of pure essence. Boosts may be used, but players cannot use pouches or familiars.
Another strategy is to use the wicked hood charged with an omni-talisman or an omni-tiara. Players could draw 100 pure essence and teleport to any altar with it. Players can simply boost at a convenient bank (Soul Wars, Gamers' Grotto, or Burthorpe).