The 1.07 m (42 in) John Hall Telescope was built by AstroMechanics and installed at Anderson Mesa in 1970.[7] It was named after former Lowell Observatory director John S. Hall in 1990.[8] In 2004, the Ritchey-Chrétien telescope was upgraded with a new mirror from Hextek, and with other parts.[9]
The 0.79 m (31 in) telescope of the National Undergraduate Research Observatory (NURO) was built by AstroMechanics and installed in 1964 at Anderson Mesa by the U.S. Geological Survey (USGS) for Project Apollo.[10] It was purchased by Lowell in 1972, and refurbished in 1990.[8][11] It is used by the NURO consortium for up to 60% of the time, and by Lowell scientists.
The 0.6 m (24 in) Lowell Observatory Near-Earth-Object Search (LONEOS) Schmidt camera was used to search for asteroids and other near-earth objects. It was built by J. W. Fecker, Inc. in 1939, given to Perkins Observatory in the 1950s, and purchased by Lowell in 1990.[8] Starting in 1992 it was refurbished, and saw first light in the dome that previously held the Lowell Astrograph in 1997.[14] Use of the telescope ended along with the LONEOS project in 2008.
The 0.33 m (13 in) Abbot L. Lowell Astrograph, also known as the Pluto Discovery Telescope and informally as the Pluto Camera, is an astrograph built by Alvan Clark & Sons in 1929. In 1930 it was used by Clyde Tombaugh to discover Pluto.[15] In 1971, it was moved a new building at Anderson Mesa, and returned to Mars Hill in 1992.[16][17]
^Horstman, H. S. (1999). "Lowell Observatory, Flagstaff, Arizona 86001. Report for the period 1 Jul 1997 – 30 Jun 1998". Bulletin of the American Astronomical Society. 31 (1): 179. Bibcode:1999BAAS...31..179H.
^Hall, J. S. (1971). "Lowell Observatory, Flagstaff, Arizona. Report 1969–1970". Bulletin of the Astronomical Society. 3: 125. Bibcode:1971BAAS....3..125H.
^ abcHorstman, H. S.; Millis, R. L. (1991). "Lowell Observatory, Flagstaff, Arizona 86001. Report for the period 1 Jul 1989 – 30 Jun 1990". Bulletin of the Astronomical Society. 23 (1): 361. Bibcode:1991BAAS...23..361H.
^Armstrong, J. T.; Mozurkewich, D.; Rickard, L. J; Hutter, D. J.; Benson, J. A.; Bowers, P. F.; Elias Ii, N. M.; Hummel, C. A.; et al. (1998). "The Navy Prototype Optical Interferometer". The Astrophysical Journal. 496 (1): 550–571. Bibcode:1998ApJ...496..550A. doi:10.1086/305365.
^Hall, J. S. (1972). "Lowell Observatory, Flagstaff, Arizona. Observatory report". Bulletin of the Astronomical Society. 4: 105. Bibcode:1972BAAS....4..105H.
^Horstman, H. S. (1995). "Lowell Observatory, Flagstaff, Arizona 86001. Report for the period 1 Jul 1993 – 30 Jun 1994". Bulletin of the Astronomical Society. 27 (1): 267. Bibcode:1995BAAS...27..267H.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction