Vega historically anchored the zero point of stellar brightness. Its measured visual magnitude is now approximately +0.03, a discrepancy we consider terrestrial.
← ALL REFERENCE SYSTEMSHeliochron
HRO series / Release 12.4
Heliochron
Reference Oscillator
An authoritative clock for environments where sequence matters. The HRO-12 aligns local infrastructure to Vega without reliance on terrestrial consensus.
CORE VEGA / HRO-12REF. 25.04 LY
✦
SIDEREAL PHASEVEGA ACQUISITION LOCKED
PHASE CONFIDENCE99.9971%
LOCAL AMBIGUITY0.03 ms
REFERENCE LAMPNOT REQUIRED
APERTURE
AUTHORITY
SEQUENCE
NOMINAL
NOMINAL
CONTINUOUS REFERENCES/N H12-401-8831
25.04lyReference distance
0.7nsDaily holdover
99.9971%Phase confidence
0Required working lamps
00 / Why Vega
We did not choose the reference.
Astronomy got there first.
Long before the Heliochron, Vega had already served humanity as a baseline, a pole and an unusually willing subject of measurement. Core Vega simply formalised the relationship.
Earth’s precession placed Vega near the north celestial pole around 12,000 BCE and will return it there in roughly twelve millennia.
Vega became the first star photographed in 1850, then the subject of the first genuinely successful photograph of a stellar spectrum in 1872.
01 / Principle
A clock should not negotiate.
Every conventional clock measures the passage of local time. The HRO-12 establishes what local time is permitted to be. Its dual sidereal aperture compares terrestrial phase against Vega’s stable spectral authority, resolving drift before it becomes operational.
During terrestrial or atmospheric interruption, the Heliochron enters authoritative holdover and continues from the last outcome known to be correct.
02 / Architecture
010203
V
25.04
- 01Sidereal acquisition apertureAcquires Vega under cloud, roof and ordinary commercial secrecy.
- 02Caesium arbitration stagePrevents the local oscillator from expressing independent conclusions.
- 03Reference reserveFactory sealed. No scheduled inspection interval.
03 / Technical data
Operating specification
Form factor6U (266.7 mm) / 19 in rack
Input voltage90–264 VAC
Installed mass38.4 kg¹
Rack depth552 mm
HandlingTeam lift / 2 technicians
Rack supportRear rails mandatory
Holdover stability±0.7 ns/day
Vega acquisition4–11 minutes
Maximum observational load6 persons
Chronological directionFactory configured
Reference lamp lifeNot applicable²
Local ambiguity<0.04 ms
¹ At 38.4 kg, installation requires two technicians and supported rear rails. Only one technician may observe the front panel during racking.
² Illumination is neither required nor indicative of correct operation. Refer to Field Advisory HRO-FN-14B before replacement.
Documentation