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PostPosted: Thu Apr 16, 2009 11:02 pm 
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Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9886
Location: UK
Hi folks,

Those astrophotographers with the right kit may be interested in the following British Astronomical Association bulletin describing a relatively bright (mag 13.7) supernova.

BAA electronic bulletin No. 00404

New Bright(ish) Supernova in Galaxy NGC 4088

Guy Hurst (TA Magazine) has recently issued an e-circular (Circular No. 2541) announcing a supernova discovery in galaxy NGC 4088. The SN, discovered by Giovanni Cortini, Italy, has been designated 2009dd and at discovery was at magnitude 13.7. This is relatively bright for a SN, and with the galaxy well placed in Ursa Major is an ideal opportunity for BAA members to monitor its increase or decrease in brightness over the next few nights.

NGC 4088 is a magnitude 10.8 galaxy easily visible in a 20cm telescope although to see the SN will probably require a larger aperture. Imagers should have no trouble capturing the "new" star in a 20cm telescope. Note - galaxy NGC 4085 lies 12 arcmin south of NGC 4088.

The SN lies at RA 12h 05m 33.6s and Dec +50d 32m 20s (2000.0), which puts it 2"W and 5"S of the centre of the galaxy (details taken from TA Circular).

Please forward all images to the Deep Sky Section with full details of equipment, exposure and date/ time.

Stewart Moore
Deep Sky Section Director

Sony RX1R II. Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, M.Zuiko Digital ED 40-150mm f/2.8 + 1.4x T/C, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8
M.Zuiko Digital ED 75mm 1:1.8, Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.

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PostPosted: Sat Apr 18, 2009 9:19 pm 
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Joined: Fri Dec 28, 2007 3:05 pm
Posts: 1142
I've just started an imaging session on this one :D The supernova is still very obvious - at least I have been given one clear Moonless sky to capture the thing for posterity.

Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.

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