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  • Astrophotography by Leonardo Orazi - Photo Gallery - Galaxies - SN2013df in NGC 4414 - The Whirlpool Galaxy
    dramatic well defined spiral arms of a grand design spiral In 1974 a supernova SN 1974G was observed and is the only supernova in this galaxy to be recorded so far NGC 4414 is also a very isolated galaxy without signs of past interactions with other galaxies 4 and despite not being a starburst galaxy shows a high density and richness of gas both atomic and molecular with the former

    Original URL path: http://www.starkeeper.it/NGC4414SN.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Widefield - Milky Way Over the Alps
    Mount AP Mach1 GTO Camera Canon 5D MkII Baader Mod Filters Guiding Systems SXV AO LF Active Optics SX Lodestar Dates Times 7 June 2013 Location Pragelato Turin Italy Exposure Details OSC 1x250s 800 ISO Cooling Details Acquisition Manual Processing

    Original URL path: http://www.starkeeper.it/MWCorePragelato.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Nebulae - Vulpecula To Sagitta
    it is commonly known simply as the fox It was identified in the seventeenth century and is located in the middle of the Summer Triangle an asterism consisting of the bright stars Deneb Vega and Altair Sagitta is a constellation Its name is Latin for arrow and it should not be confused with the larger constellation Sagittarius the archer Although Sagitta is an ancient constellation it has no star brighter than 3rd magnitude and has the third smallest area of all constellations only Equuleus and Crux are smaller It was included among the 48 constellations listed by the 2nd century astronomer Ptolemy and it remains one of the 88 modern constellations defined by the International Astronomical Union Located to the north of the equator Sagitta can be seen from every location on Earth except within the Antarctic circle Sagitta lies within the Milky Way and is bordered by the following constellations beginning at the north and then continuing clockwise the little fox Vulpecula the mythological hero Hercules the eagle Aquila and the dolphin Delphinus Text from Wikipedia Optics Takahashi FSQ 106EDXIII F 3 6 383mm APO Refractor Mount AP Mach1 GTO Camera Canon 5D MkII Baader Mod Filters OSC Guiding

    Original URL path: http://www.starkeeper.it/VulpSag.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Star Cluster - M11 Wide Field
    catalogue in 1764 The Wild Duck Cluster is one of the richest and most compact of the known open clusters containing about 2900 stars Its age has been estimated to about 220 million years Its name derives from the brighter stars forming a triangle which could represent a flying flock of ducks Text from Wikipedia Optics Takahashi FSQ 106EDXIII F 3 6 383mm APO Refractor Mount AP Mach1 GTO Camera

    Original URL path: http://www.starkeeper.it/M11D5.htm (2015-03-19)
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  • a r e n t m a g n i t u d e 0 r o u g h l y t h e b r i g h t n e s s o f A l p h a C e n t a u r i A o r V e g a A n e s t i m a t e i n O c t o b e r 2 0 1 2 p r e d i c t e d t h e c o m e t m i g h t b r i g h t e n t o m a g n i t u d e 4 r o u g h l y e q u i v a l e n t t o V e n u s I n J a n u a r y 2 0 1 3 t h e r e w a s a n o t i c e a b l e b r i g h t e n i n g s l o w d o w n t h a t s u g g e s t e d t h e c o m e t m a y o n l y b r i g h t e n t o m a g n i t u d e 1 D u r i n g F e b r u a r y t h e b r i g h t n e s s c u r v e s h o w e d a f u r t h e r s l o w d o w n s u g g e s t i n g a p e r i h e l i o n m a g n i t u d e o f a r o u n d 2 H o w e v e r a s t u d y u s i n g t h e s e c u l a r l i g h t c u r v e i n d i c a t e s t h a t t h e c o m e t h a d a s l o w d o w n e v e n t w h e n i t w a s 3 6 A U f r o m t h e S u n a t a m a g n i t u d e 5 6 T h e b r i g h t n e s s i n c r e a s e r a t e d e c r e a s e d a n d t h e e s t i m a t e d m a g n i t u d e a t p e r i h e l i o n w a s p r e d i c t e d a s 3 5 C o m e t H a l l e y w o u l d b e m a g n i t u d e 1 0 a t t h e s a m e p e r i h e l i o n d i s t a n c e T h e s a m e s t u d y c o n c l u d e d t h a t t h e c o m e t i s v e r y y o u n g a n d b e l o n g s t o t h e c l a s s o f b a b y c o m e t s i e t h o s e w i t h a p h o t o m e t r i c a g e o f l e s s t h a n 4 c o m e t y e a r s W h e n t h e c o m e t r e a c h e d p e r i h e l i o n i n M a r c h 2 0 1 3 t h e a c t u a l p e a k m a g n i t u d e t u r n e d o u t t o b e a r o u n d 1 a s e s t i m a t e d b y v a r i o u s o b s e r v e r s a l l o v e r t h e p l a n e t H o w e v e r t h e l o w a l t i t u d e o f t h e c o m e t o v e r t h e h o r i z o n m a d e t h e s e e s t i m a t e s d i f f i c u l t a n d s u b j e c t t o s i g n i f i c a n t u n c e r t a i n t i e s b o t h b e c a u s e o f t h e l a c k o f s u i t a b l e r e f e r e n c e s t a r s i n t h e

    Original URL path: http://www.starkeeper.it/CometaPanstarrs.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Nightscape - Milky Way over the Alps from Porliod
    8 F2 8 Mount Fixed Tripod Camera Canon 5D Mark II Stock Filters Guiding Systems Dates Times 10 May 2013 Location Porliod Aosta Italy Exposure Details OSC 1x30s 3200 ISO Cooling Details Acquisition Manual Processing PS CS5 Mean FWHM SQM

    Original URL path: http://www.starkeeper.it/ViaLattea_Porliod_I.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Galaxies - M101 Deep Wide Field
    enormous almost twice the size of our own Milky Way galaxy M101 was also one of the original spiral nebulae observed by Lord Rosse s large 19th century telescope the Leviathan of Parsontown Also known as the Pinwheel Galaxy M101 lies within the boundaries of the northern constellation Ursa Major about 25 million light years away Text adapted from APOD Optics Takahashi FSQ 106EDXIII F 3 6 383mm APO Refractor

    Original URL path: http://www.starkeeper.it/M101WF_Deep.htm (2015-03-19)
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  • Astrophotography by Leonardo Orazi - Photo Gallery - Landscape - Alpine Storm
    Sites Links About Me Landscape Alpine Storm Low Resolution Full Resolution Pubblications NASA EOS USRA EPOD 19 August 2013 Optics Canon 50mm F1 8 Camera Canon 5D MkII Stock Dates Times 11 May 2013 Location Porliod Aosta Italy Processing PS

    Original URL path: http://www.starkeeper.it/FulminiValle.htm (2015-03-19)
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