Orwell Park Mansion and Observatory
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OASI is a society for people interested in astronomy. We are based at Orwell Park Observatory and Newbourne Village Hall, both situated near Ipswich, Suffolk. Members enjoy a wide range of interests in astronomy and include armchair astronomers, casual observers, and dedicated amateurs with specialist skills in visual and photographic observing, constructing telescopes, public education in astronomy and the history of astronomy.

Email for more information: info@oasi.org.uk



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Night Sky Notes

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Observatory Visits


Visit Orwell Park Observatory and see the historic Tomline Refractor.


Join OASI or renew membership.


Wed 28 Feb 2024, 20:15, Orwell Park Observatory, General observing for members of OASI.

Mon 04 Mar 2024, 20:15, Orwell Park Observatory, Taster evening. Places must be booked in advance by email: tour@oasi.org.uk.

Wed 06 Mar 2024, 20:15, Orwell Park Observatory, General observing for members of OASI.

Mon 11 Mar 2024, 19:30, Newbourne Village Hall, Newbourne meeting - beginners welcome!
20:00 talk by Paul Whiting, FRAS, Time & Tide.

Full events list, with contact details for further information.


Recent activities and observations

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[1/12]   The venue at the Space Invaderz event at Suffolk Aviation Heritage Museum immediately before visitors arrived. The giant astronaut suit provided the perfect background for selfies! Members of OASI provided support by showing visitors the night sky through a variety of telescopes. 24 February 2024. Martin Cook.
[2/12]   The Sun imaged in Hα light. The enlarged insets show a limb prominence and detail around the large sunspot. 23 February 2024. Martin Cook. More.
[3/12]   The IM-1 lunar mission, marked "IM-1" en route to the Moon where, if all goes to plan, it will place a lander on the surface, becoming the first commercial organisation to do so. The image is centred on IM-1, so stars appear as trails. 18 February 2024. Nigel Evans. More.
[4/12]   The Orion Nebula (M42) is the first light object for OASI's newly-purchased ZWO SeeStar S50 "smart" imaging telescope. A stack of five minute exposures with no post processing. 11 February 2024. Andy Gibbs. More.
[5/12]   Star cluster NGC1528 and nebulosity Sh2-209 (in Perseus). 26 January 2024. John Hughes. More.
[6/12]   IC1795 and IC1805, two small star clusters embedded in emission nebulae at a distance of 7500 light years. 19 December 2023 -15 January 2024. John Hughes. More.
[7/12]   Two views of Jupiter. LHS: Andy Gibbs, 19 December 2023. RHS: Carl Baldwin, 17 December 2023. In both images, the Great Red Spot is visible in the southern hemisphere of the planet. More.
[8/12]   OASI's 2023 Christmas quiz at Newbourne Village Hall, on Monday 11 December 2023, was greatly enjoyed by all who attended. Image by John Wainwright.
[9/12]   Two sketch of the Sun, observed in white light, show the motion and evolution of active regions (sunspots). LHS: 06 December 2023; RHS: two days later. Neil Morley. More.
[10/12]   A spectacular auroroa witnessed from near Narvik, Norway. 19 November 2023. Andy Gibbs. More.
[11/12]   An aurora was visible over much of the British Isles on the evening of 05 November 2023. Left-top: Martin Cook; left-bottom: Paul Whiting, FRAS; right (top-bottom): Toni Smith. More.
[12/12]   Solar spectra captured on 07 September 2023 using a solar tele-spectroscope. Top: sodium doublet (588.99 nm & 589.59 nm); bottom: Hα line (656.28 nm). Bill Barton, FRAS. More.