Archive for the ‘Planetary Nebulae’ Category

NGC 6164 and Pansstars 2013X1 ASI1600MM FLT98 120 sec

Posted by Paulo Cacella on 4th July 2016 in Comets, Milky Way, Planetary Nebulae, Recent Posts, Solar System
ngc6164 e Pansstars 2013X1

Ant Nebula Menzel 3

Posted by Paulo Cacella on 8th February 2016 in Images, Milky Way, Planetary Nebulae, Recent Posts

NGC 6164 Bipolar Nebula in Norma

Posted by Paulo Cacella on 31st August 2014 in Milky Way, Planetary Nebulae, Recent Posts

Bug Nebula in Scorpius

Posted by Paulo Cacella on 31st August 2014 in Milky Way, Planetary Nebulae, Recent Posts

Spare Tyre Nebula IC5148

Posted by Paulo Cacella on 31st August 2014 in EBA - Alto Paraíso, Milky Way, Planetary Nebulae, Recent Posts

Messier 27 Dumbbell Nebula in Vulpecula

Posted by Paulo Cacella on 31st August 2014 in EBA - Alto Paraíso, Milky Way, Planetary Nebulae, Recent Posts

Bug Nebula in Scorpius from a FLT98 and a T3i camera

Posted by Paulo Cacella on 4th August 2011 in Planetary Nebulae
Image obtained at Alto Paraiso de Goias with a FLT98 APO, at 600mm Focal Length, using a Canon T3i 18 megapixels camera. The full image below has more than 5000 pixels wide. Exposure was 30 seconds. Camera is stock. / / / /

Helix Nebula NGC 7293

Posted by Paulo Cacella on 14th August 2010 in Planetary Nebulae

Helix Nebula NGC 7293 in Aquarius

/ /Telescope LX200GPS 10 in, CCD ST-8XMENAB, external SBIG autoguider, Astrodon filters, F4 and F7 focal reducers. / / / /These images were generated only to test the setup. They were not worked very well and the exposures were short (5 minutes for HA-SII and OIII and 60 seconds for LRGB) / / / / / / / /This one below was out of single exposures and show cosmic rays. / / / / / / / /This is an HAlpha, OIII, SII / / / / / / / /This one is a false color showing details on levels that cannot be seen with the eye range. / / / / / /

Data on Helix Nebula

/ /Comments from the NGC-IC Project: / /Planetary nebula / /Type: PN / /RA: 22 29 38.4 (J2000) / /declination: -20 50 13 / /Magnitude: 6.5 / /Major axis: 12.82 arcminutes / /Constellation: AQR / /Alternative designations: / /PK 36-57.1      ESO 602-PN22                    CS=13.5, Helix n / /Right ascension: 22h29m38.4s / /Declination: -20 50′ 13″ / / / /Remarks from the NGC2000 Catalog: / /J2000 RA: 22h29.6m / /J2000 dec: -20 48′ / /! pF, vL, E or biN / / / /NGC 7293: remarkable pretty faint, very large, extended or / /binuclear / / / /Comments from Steve Coe’s observations: / / / /NGC 7293  Pretty bright, Very large, annular at 100X.  The UHC filter / /helps the contrast very much.  Seen as uniformly illuminated disk in / /10X50 finder or binocs.  The central hole can be held steady at times, / /but is generally more prominent with averted vision.  There are 5 / /stars involved within the Helix shape.  If you are looking for a real / /observing challenge for your next observing session, the Helix can / /supply a toughie!  The picture of the Helix on page  195 in Burnham’s / /Celestial Handbook shows a very faint edge-on galaxy at the edge of / /the Helix Nebula. It is located at the end of the Helix that opens up / /near a pretty bright star.  Using the 17.5″ on a night I rated 9/10 at / /8000 ft. in the Central Mountains of Arizona, I could just pick it out / /at 300X. / /Sentinel 13″ 38mm 60X  Bright, large, round, nice view.  5 stars / /involved and nice double star at south edge.  Center is darker, / /but no “halo” around the brighter annulous of nebulosity. / /100X  7 stars involved, still no hole.  Adding UHC makes it very / /contrasty with a much darker middle, reduces stars to 5, but a / /very nice view.  150X  is best view, it takes up about 6023262520f / /the field of view.  There are 11 stars involved, several very faint. / /The north side of the nebulosity is brightest.  Adding the / /UHC at this power shows a very dark middle, but not completely / /free of nebulosity. / /Sentinel S=6  T=7  6″ f/6  22mm no filter–moderately easy to see, pretty / /low surface brightness. / /14mm +UHC  much easier to see, about 1/3 of field of view, 3 stars involved / /within nebulosity.  Brighter on the east side.  Central section is darker / /than edges, but not completely free of nebulosity. / / / /Comments from SAC (Saguaro Astronomy Club) 7.2 database: / /NGC 7293 / /PK 36-57.1 / /Object type: PLNNB / /Constellation: AQR / /RA: 22 29.6 (J2000) / /declination: -20 50 / /Size: 960 x 720 / /Classification: 4(3) / /Brightest star is of magnitude 13.5 / /!,pF,vL,E or biN / /Helical Nebula;low surf brightness