Hereford Arizona Observatory

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Hereford Arizona Observatory
Hereford Arizona Observatory (HAO)
HAO#1 and HAO#2.
Organization Bruce L. Gary Edit this on Wikidata
Observatory code G95 Edit this on Wikidata
Location Arizona, US
Coordinates 31°27′08″N 110°14′16″W / 31.4522°N 110.2378°W / 31.4522; -110.2378Coordinates: 31°27′08″N 110°14′16″W / 31.4522°N 110.2378°W / 31.4522; -110.2378
Altitude 4,670 ft (1,420 m) Edit this at Wikidata
Website Edit this at Wikidata
Commercial telescopes Celestron CPC 1100
Meade LX200 Edit this on Wikidata
Hereford Arizona Observatory is located in the US
Hereford Arizona Observatory
Location of Hereford Arizona Observatory
Commons page Related media on Wikimedia Commons

Hereford Arizona Observatory (HAO), IAU-code G95, is an astronomical observatory,[1][2] owned and operated by amateur astronomer Bruce L. Gary.[3] Gary is the author of many publications related to astronomy,[3] including Exoplanet Observing for Amateurs (2008),[4] currently available in a second edition (2009).[5][6] Observational studies of unusual starlight fluctuations in KIC 8462852[7] and WD 1145+017[8] are recent interests.

HAO consists of two telescopes, in two separate observatory installations: HAO#1 (contains a Celestron CPC 1100, 11-inch Schmidt-Cassegrain telescope on an equatorial mount) and HAO#2 (contains a Meade LX200 GPS, 14-inch Schmidt-Cassegrain telescope on an equatorial mount).[1]

The observatory is located in Arizona about 130 km (80 mi) southeast of Tucson and about 11 km (7 mi) north of the Mexican border. Coordinates are at the following: North Latitude +31:27:08 and West Longitude 110:14:16, at an altitude of 1,423 m (4,670 ft).[1]

HAO#2 lit by a full moon with Venus setting behind mountains at 2,900 m (9,500 ft) altitude.


See also[edit]


  1. ^ a b c Gary, Bruce L. (17 May 2017). "Hereford Arizona Observatory (HAO)". Retrieved 22 September 2017. 
  2. ^ Staff (2017). "List Of Observatory Codes". Minor Planet Center. Retrieved 22 September 2017. 
  3. ^ a b Gary, Bruce L. (12 August 2017). "Bruce L. Gary - Resume". Retrieved 22 September 2017. 
  4. ^ Staff (12 January 2008). "Exoplanet Observing for Amateurs by Bruce L Gary (first edition)". SETI League. Retrieved 22 September 2017. 
  5. ^ Gary, Bruce L. (30 December 2010). "Exoplanet Observing for Amateurs (second edition) by Bruce L. Gary - Free PDF Download". Retrieved 22 September 2017. 
  6. ^ Gary, Bruce L. (2014). Exoplanet Observing for Amateurs (Second (Plus) ed.). CreateSpace Independent Publishing Platform. ISBN 978-1500554248. 
  7. ^ Gary, Bruce L. (16 September 2017). "Hereford Arizona Observatory photometry observations of KIC 8462852 between 2 May and 16 September 2017". Archived from the original on 17 September 2017. Retrieved 17 September 2017. 
  8. ^ Rappaport, S.; Gary, B.L.; Vanderburg, A.; Xu, S.; Pooley, D.; Mukai, K. (24 September 2017). "WD 1145+017: Optical Activity During 2016-2017 and Limits on the X-Ray Flux". Monthly Notices of the Royal Astronomical Society. 474: 933. arXiv:1709.08195Freely accessible. doi:10.1093/mnras/stx2663. 

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