• Thumbnail for Navy Precision Optical Interferometer
    The Navy Precision Optical Interferometer (NPOI) is an American astronomical interferometer, with the world's largest baselines, operated by the Naval...
    21 KB (2,252 words) - 20:42, 12 June 2024
  • Thumbnail for Astronomical interferometer
    including the Navy Precision Optical Interferometer, the Infrared Spatial Interferometer and the IOTA array. A number of other interferometers have made closure...
    26 KB (2,657 words) - 02:25, 13 June 2024
  • Thumbnail for United States Naval Observatory
    observatory, NOFS, near Flagstaff. This facility now oversees the Navy Precision Optical Interferometer. By the early 1870s the USNO daily noon-time signal was...
    38 KB (3,293 words) - 06:08, 6 November 2024
  • United States Naval Observatory Flagstaff Station (category United States Navy organization)
    control drives are developed and made. NOFS operates the Navy Precision Optical Interferometer (NPOI) in collaboration with Lowell Observatory and the...
    45 KB (4,183 words) - 19:53, 22 September 2024
  • Here is a list of currently existing astronomical optical interferometers (i.e. operating from visible to mid-infrared wavelengths), and some parameters...
    8 KB (241 words) - 17:02, 24 September 2024
  • Thumbnail for Lowell Observatory
    Naval Observatory and Naval Research Laboratory in the Navy Precision Optical Interferometer (NPOI) also located at that site. The Observatory also operates...
    22 KB (2,249 words) - 03:26, 10 December 2024
  • Thumbnail for Pollux (star)
    than modern estimates. A more recent measurement by the Navy Precision Optical Interferometer give a radius of 9.06 R☉. Another estimate that uses Pollux's...
    27 KB (2,190 words) - 15:47, 4 November 2024
  • (2018-01-01). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1): 30. arXiv:1712.08109...
    14 KB (1,288 words) - 22:25, 29 December 2024
  • Thumbnail for Rigel
    luminosity as low as 61,515±11,486 L☉. A 2018 study using the Navy Precision Optical Interferometer measured the angular diameter as 2.526 mas. After correcting...
    72 KB (7,317 words) - 22:14, 28 December 2024
  • for up to 60% of the time, and by Lowell scientists. The Navy Precision Optical Interferometer (NPOI) is collaboration of Lowell Observatory, the U.S....
    10 KB (932 words) - 16:39, 2 December 2023
  • Thumbnail for Regulus
    T. (2017). "Fundamental parameters of 87 stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1): 16. arXiv:1712.08109...
    33 KB (3,048 words) - 15:37, 1 January 2025
  • also very flat, it is also home to the Naval Observatory's Navy Precision Optical Interferometer, or "NPOI", since 1992. It is also the inspiration for the...
    3 KB (212 words) - 00:06, 21 November 2022
  • Thumbnail for Beta Aquarii
    et al. (2018). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1). 30. arXiv:1712.08109...
    22 KB (1,924 words) - 06:30, 26 October 2024
  • Thumbnail for Alkaid
    T. (2017). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1): 30. arXiv:1712.08109...
    15 KB (1,227 words) - 11:18, 25 August 2024
  • Thumbnail for Pisces (constellation)
    et al. (2018). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1). 30. arXiv:1712.08109...
    27 KB (2,672 words) - 15:40, 18 November 2024
  • Thumbnail for Altair
    effect, was confirmed for Altair by measurements made by the Navy Precision Optical Interferometer in 2001, and analyzed by Ohishi et al. (2004) and Peterson...
    30 KB (2,770 words) - 04:00, 23 January 2024
  • Thumbnail for Flagstaff, Arizona
    Lowell Observatory and NOFS also are collaborators on the Navy Precision Optical Interferometer, on nearby Anderson Mesa. NOFS is heavily involved with...
    162 KB (15,941 words) - 03:17, 18 December 2024
  • Thumbnail for Alioth
    most modern equipment. Observations of Alioth with the Navy Precision Optical Interferometer also did not detect a companion. Epsilon Ursae Majoris has...
    15 KB (1,332 words) - 19:19, 29 December 2024
  • Thumbnail for Alpha Persei
    and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 162 (5): 198. arXiv:2211.09030...
    17 KB (1,432 words) - 04:44, 1 January 2025
  • Thumbnail for Dubhe
    et al. (2017). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1): 30. arXiv:1712.08109...
    17 KB (1,272 words) - 18:24, 22 November 2024
  • Thumbnail for Beta Tauri
    and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 162 (5): 198. arXiv:2211.09030...
    16 KB (1,516 words) - 19:22, 19 November 2024
  • Thumbnail for Cepheus (constellation)
    and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 162 (5): 198. arXiv:2211.09030...
    21 KB (2,290 words) - 14:19, 19 December 2024
  • age of 4.6 billion years. Using interferometry with the Navy Precision Optical Interferometer, its diameter was determined to be 11.8 times that of the...
    12 KB (980 words) - 15:26, 1 January 2025
  • Thumbnail for Epsilon Geminorum
    has been directly measured using interferometry with the Navy Precision Optical Interferometer, which yields a result of 130 times the radius of the Sun...
    15 KB (1,321 words) - 12:34, 26 October 2024
  • Thumbnail for Alpha Cephei
    equator. A more recent but less detailed measurement by the Navy Precision Optical Interferometer gives 2.71 R☉, which likely corresponds to the equatorial...
    16 KB (1,315 words) - 02:35, 26 October 2024
  • Thumbnail for Beta Boötis
    diameter measured using interferometric observations by the Navy Precision Optical Interferometer. The angular diameter, together with the star's distance...
    10 KB (812 words) - 14:31, 10 September 2024
  • Thumbnail for Thuban
    detected in high spatial resolution observations using the Navy Precision Optical Interferometer. The secondary star is 1.8 magnitudes (at 700 nm) fainter...
    15 KB (1,387 words) - 19:04, 26 October 2024
  • Thumbnail for Beta Ursae Minoris
    and Fundamental Parameters of Forty-four Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 162 (5): 198. arXiv:2211.09030...
    20 KB (1,611 words) - 15:23, 23 December 2024
  • Thumbnail for Beta Cancri
    T. (2018), "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer", The Astronomical Journal, 155 (1): 30, arXiv:1712.08109...
    11 KB (867 words) - 19:10, 21 September 2024
  • Thumbnail for Gamma Cephei
    et al. (2018). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal. 155 (1). 30. arXiv:1712.08109...
    20 KB (1,838 words) - 16:39, 15 December 2024