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O'Brien Observatory

{{Infobox observatory

|name = O'Brien Observatory

|background =

|image = O'Brien Observatory.jpg

|caption =

|organization = University of Minnesota

|code =

|location = Marine on St. Croix, Minnesota

|coords = {{Coord|45.1815|-92.7757|type:landmark|display=inline,title}}

|altitude = {{Convert|308|m|ft|sp=us}}

|weather =

|established = {{Start date|1968}}

|closed =

|website = {{URL|http://ir.astro.umn.edu/telescopes/obo.html|O'Brien Observatory}}

|telescope1_name = {{Nobold|unnamed telescope}}

|telescope1_type = 0.76 m reflector

|telescope2_name =

|telescope2_type =

|telescope3_name =

|telescope3_type =

|telescope4_name =

|telescope4_type =

}}

The O'Brien Observatory (OBO) is an astronomical observatory in the city of Marine on St. Croix, Minnesota, United States, about {{Convert|35|km|miles|sp=us}} northeast of Minneapolis. The observatory is owned and operated by the University of Minnesota and opened in 1968. It has one telescope, a {{Convert|0.76|m|in|sp=us|adj=on}} Cassegrain reflector capable of observing at both optical and infrared wavelengths. It is used for primarily for instruction and instrument testing, and occasionally for research purposes.

See also

References

{{Reflist|refs=

{{cite web |title=UMN Infrared Astronomy |url=http://ir.astro.umn.edu/telescopes/ |publisher=University of Minnesota Department of Astronomy |access-date=2012-01-10 |url-status=dead |archive-url=https://web.archive.org/web/20120210153906/http://ir.astro.umn.edu/telescopes/ |archive-date=2012-02-10 }}

{{cite journal |last=Mason |first=C. G. |author2=Gehrz, R. D. |author3=Jones, T. J. |author4=Woodward, C E. |author5=Hanner, M. S. |author6=Williams, D. M. |title=Observations of Unusually Small Dust Grains in the Coma of Comet Hale-Bopp C/1995 O1 |journal=The Astrophysical Journal |date=1 March 2001 |volume=549 |issue=1 |pages=635–646 |doi=10.1086/319039 |bibcode = 2001ApJ...549..635M |doi-access=free }}

}}

External links

  • [http://ir.astro.umn.edu/ Department of Astronomy Infrared Laboratory] at the University of Minnesota
  • [http://cleardarksky.com/c/WrnrNCMNkey.html Lee & Rose Warner Nature Center Clear Sky Chart] Forecasts of observing conditions approximately 4.5 km west of OBO.

{{University of Minnesota campus}}

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Category:1968 establishments in Minnesota

Category:Astronomical observatories in Minnesota

Category:Buildings and structures in Washington County, Minnesota

Category:University of Minnesota

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