Lowell is a partner with the United States Naval Observatory and Naval Research Laboratory in the Navy Precision Optical Interferometer ( NPOI ) also located at that site.

The " Michelson Interferometer " design is found on modern operational observatories such as VLTI, CHARA – and the U. S. Navy's NPOI.

The Navy Precision Optical Interferometer ( NPOI ) is a major astronomical interferometer ( world's largest baselines ), operated by the Naval Observatory Flagstaff Station ( NOFS ) in collaboration with the Naval Research Laboratory ( NRL ) and Lowell Observatory.

The NPOI is an astronomical interferometer laid out in a three-arm " Y " configuration, with each equally-spaced arm measuring long.

The OAP commissioned the chief scientist and director of the NPOI to effect the science and operations for the Panel ; this manager is a senior member of the NOFS staff and reports to the NOFS Director.

NPOI is one of the few major instruments globally which can conduct optical interferometry.

NPOI is capable of determining positions of celestial objects to a few milli-arcsecond, in part due to the optical anchoring of its components using a complex metrology array of lasers that connect main optical elements to each other and to bedrock.

NPOI is expected to grow significantly in capability with the pending addition of four 1. 8-meter aperture IR / Optical telescopes into the current array.

Until November 2011, the facility was known as the Navy Prototype Optical Interferometer ( NPOI ).

Subsequently the instrument was temporarily renamed the Navy Optical Interferometer, and now permanently, the Navy Precision Optical Interferometer ( NPOI ) -- reflecting the operational maturity of the facility.

To date NPOI has produced the highest resolution optical images of any astronomical instrument, though this may change when the CHARA array and Magdalena Ridge Observatory Interferometer begin optical-band operations.

NOFS has used NPOI to conduct a wide and diverse series of scientific studies, beyond just the study of absolute astrometric positions of stars ,; additional NOFS science at NPOI includes the study of binary stars, Be Stars, Oblate stars, rapidly rotating stars, those with starspots, and the imaging of stellar disks ( the first in history ) and flare stars.

In 2007 – 2008, NRL with NOFS used NPOI to obtain first-ever closure phase image precursors of satellites orbiting in geostationary orbit.

The NPOI project was initiated by the United States Naval Observatory ( USNO ) in 1987.

In 2009 NOFS began final plans for NPOI to incorporate four aperture optical-infrared telescopes into the array, which were accepted by the Navy in 2010, and assigned to the Naval Observatory Flagstaff Station.

When complete by 2013, NPOI will run the longest baseline interferometer in the world.

The first astronomical object imaged ( resolved ) by NPOI was Mizar, and since, a significant amount of astrometry, reference tie frame, rapid rotator star, and Be stellar disk study has been performed.

The NPOI primarily produces space imagery and astrometry, the latter a major component required for the safe position, navigation, and orienting of the world's orbiting satellites through upwards of 19, 000 + pieces of orbiting space debris.

Lowell joined the project the following year when the USNO decided to build the NPOI at Anderson Mesa.

The NPOI has been continuously upgraded and expanded since then, and has been operational for a decade.

The workings of NPOI as a classic interferometer, are described at Scholarpedia, and at the NPOI site.

There are two types of stations that can be used in the NPOI.

a `` Double-Figure '', which went to the Chicago Art Institute, and is considered by him the most successful of his abstracts ; ;

nor is there need to add that among them are some of the most highly individualized and most successful of his characters.

He has also enjoyed a successful career as an entertainer ( his records have sold in the millions ) and is a sharp businessman.

Through all this raving, Krim is performing a traditional and by now boring rite, the attack on intelligence, upon the largely successful attempt of the magazines he castigates to liberate American writing from local color and other varieties of romantic corn.

The soldiers themselves cannot stage a successful rebellion, it is assumed: but will their discontent spread to the officer class??

That first entry there is the Vermont Flumenophobe, the earliest and one of the most successful of my eighty-three varieties -- great big scapulars and hardly any primaries at all.

The resulting setup, it was declared, `` would be similar to that which is in successful operation in a number of metropolitan counties as large or larger than Rhode Island ''.

Expansion and relocation of industry in Rhode Island is the direct responsibility of the Development Council's Industrial Division, and the figures quoted above indicate a successful year's operation.

Another recent achievement was the successful development of a method for the complete combustion in a bomb calorimeter of a metal in fluorine when the product is relatively non-volatile.

A true university, like most successful marriages, is a unity of diversities Without forcing all components into a single pattern, the preparation of a master plan is an opportunity to consider interrelation of knowledge at its highest level, which a university -- in contrast to a multiversity -- should stand for.

Like the recent Scheherazade from London ( High Fidelity, Sept. 1961 ), it is successful because emphasis has been placed on good musical and engineering practices rather than on creating sensational effects.

This Class can be just as successful in the dog world if it is given a chance.

however, he will have a clearer understanding of what he is doing and the chances are he will be more successful if he understands the few formulas that apply to rodding.

As Broadway itself becomes increasingly weighted down by trite, heavy-handed, commercially successful musicals and inspirational problem dramas, the American theatre is going through an inexorable renaissance in that nebulous area known as `` off-Broadway ''.

Especially noteworthy is Levinger's finding that the length of treatment per se is not a reliable indicator of successful outcome.

It is obvious enough that linguists in general have been less successful in coping with tone systems than with consonants or vowels.

The first is a wide-ranging sample of successful tonal analyses.

The range of the later poetry is considerably narrower, but the number of successful poems is far greater.

Now when, so to speak, the cream has been skimmed off, and the items in the successful categories separated out, the sitter can be asked to consider and rate only this concentrated `` cream '', where the sensitive is at her best.

An excellent example of a successful location of a new vocational high school is the Dunbar Vocational High School in Chicago.

It is eminently successful according to all conventional standards.

The Thrift Shop, with Mrs. Bernhard S. Blumenthal as president, is one of the city's most successful fund-raisers for the Federation of Jewish Agencies.