This archive tracks four layers. A record present in 1 of them (IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
[RECORD LOST]
No record for this location in The Horus Heresy.
Position in this era: [RECORD LOST].
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
Position in this era: [RECORD LOST].
The 41st Millenniumpre-Rift
[RECORD LOST]
No record for this location in The 41st Millennium.
Position in this era: [RECORD LOST].
Era Indomituspost-Rift
imperium
Ultramarines vessel, Crusade Fleet Quintus
Attached to the fleet everyone else calls the Cursed Fleet, and the ship aboard which the decision gets made: hold and die at the Pariah Nexus, or run and tell Guilliman what the Necrons are building.
Position: Macragge System (Macragge) Ultramarines vessel of Crusade Fleet Quintus; docked against Macragge as the Chapter's own anchorage, since the stricken world the book reaches is never named Cited in Indomitus
Position
A mobile record: it carries a position timeline rather than a fixed point. The archive places it in 1 of the four eras (IND); each era section above carries that era's entry.
Books set here
1 title in the reading tracker touches this record, 1 of them as a primary location. Titles link out to the tracker.
Every fact in this record, and where it came from. Editorial derivations say so.
identityhigh
wh40k.lexicanum.com/wiki/Indomitus_(Novel ) §Cover Description — 'Attached to Crusade Fleet Quintus—dubbed the Cursed Fleet by many—the Ultramarines of the Ithraca's Vengeance are drawn to a stricken world'
positionslow
derived: the world the novel is set on is deliberately unnamed in every available source, so the vessel carries the book and is docked at its Chapter's home system. That dock is an editorial default, not a canon statement