Palomar Testbed Interferometer
Palomar Testbed Interferometer, Astronomical research facility at Palomar Observatory, San Diego County, United States
The Palomar Testbed Interferometer contained three 0.4-meter telescopes working together to measure stellar properties with high precision.
From 1995 to 2008, this interferometer operated at Palomar Observatory, developed by California Institute of Technology and Jet Propulsion Laboratory.
Scientists at the facility produced over 50 academic papers examining stellar masses, diameters, and shapes through advanced interferometric techniques.
The interferometer's dual-star system enabled researchers to observe two stars simultaneously, reducing atmospheric interference in measurements.
Research conducted at this facility revealed that the star Altair has a flattened shape at its poles due to rapid rotation.
Location: San Diego County
Diameter: 0.4 m
GPS coordinates: 33.35710,-116.86400
Latest update: March 2, 2025 20:16
San Diego Wild Animal Park
31.4 km
Palomar Mountain Observatory
122 m
Palomar Mountain
2.7 km
Hale Telescope
123 m
Harrah's Resort Southern California
13.2 km
Deer Park Monastery
27.1 km
Warner's Ranch
23.8 km
Otay Mountain Wilderness
26.5 km
San Diego Aqueduct
22.4 km
Agua Tibia Wilderness
15.2 km
Temecula Valley
28.8 km
Lilac Road Bridge
27.3 km
Skinner Reservoir
31.4 km
Samuel Oschin telescope
389 m
Santa Ysabel Asistencia
30.6 km
Alta Vista Gardens
36.9 km
Oak Grove Butterfield Stage Station
7.4 km
Classic Rotors Museum
35.7 km
A.H. Beach House
33 km
Escondido Public Library
33.1 km
Temecula's Chapel of Memories
30.9 km
Thomas House
33.1 km
Palomar College Arboretum
37.2 km
Finca y jardines Grand Tradition
34.6 km
South Coast Winery
26.4 km
Deer Park Winery & Auto Museum
29.4 km
Ramona Grasslands Preserve
35.9 km
Black Canyon Road Bridge
26.7 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes