◆ Sutherland, Northern Cape
A natural telescope haven
On 1,381 hectares of private land north-west of Sutherland (-32.39°, 20.65°), ZuluAlpha sits beneath the same famously dark skies that attracted the Southern African Large Telescope (SALT).
- Bortle 1 skies
- ~270 clear nights/yr
- ≥22.0 mag/arcsec²
- 1,570 m elevation
- 1,381 ha private site
Southern Africa light pollution. ZuluAlpha sits in the Karoo, well away from Gauteng and Cape Town light domes.
Sky · Conditions
Why the sky works here
Sky · Quality
Exceptional Sky Quality
Located at 1,570 m elevation in the Great Karoo, with zenith night-sky brightness ~22.0 mag/arcsec², minimal light pollution, and dry air ideal for optical and infrared astronomy.
Sky · Reliability
Reliable Observing Conditions
Around 75% of nights are usable for astronomy, with uniform sky clarity throughout the seasons for flexible year-round scheduling.
Sky · Seeing
Excellent Seeing Stability
Median seeing is ~1.0″–1.5″ FWHM, consistent year-round with minimal seasonal variation; suitable for most optical observations.
Site · Operations
Mission-ready infrastructure
Site · Security
Security & Access Control
Remote monitoring and fenced perimeters with 24/7 CCTV.
Site · Protection
Legally Protected Astronomy Zone
Within the Astronomy Geographic Advantage Area and Sutherland Central AAA (75 km radius), protected by South African law from light and radio pollution.
Site · Power
Reliable Power & Backup
99.9% power availability through a 30 kWp / 120 kWh LiFePO₄ off-grid array supported by an automatic diesel generator backup.
Site · Connectivity
Fast & Redundant Connectivity
Dual-path, low-latency connectivity via Starlink Business and fixed-wireless links, with rapid on-site engineering support.
Site · Flexibility
Flexible Infrastructure
From astrophotography rigs to full observatories, the compound can accommodate your needs.
#4 globally
Ranked among the darkest observatory sites worldwide
Johnson V radiance at zenith for major observatories. Only six of 28 sites fall below a 1% increase over a natural 22.0 mag arcsec⁻² background. Source: Falchi et al. 2022.
Coordinates
32°21’21.1″S 20°38’47.5″E
Elevation
1,570 m
Protection
AGA / SCAAA zone
Power
50 kW solar / 120 kWh battery storage / 60 kVA generator backup.
Questions about fit, power, or connectivity? Contact us.