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CVAS - North
A roll-off roof observatory on the grounds of the Chagrin Valley Astronomical Society Click Here to see if we're observing tonight
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Picture of the Day (actually it's kind of - Picture of the week - sorry)
Barnard's Loop in Orion Modified Canon 350D 180mm Canon lens 7nm Hydrogen-Alpha Ha 2 x 9 x 600 sec, 1x1 bin, 2-pane mosaic Field of View: 08°28’ x 3°08’ centered on RA 05h54m11s DEC -02 °43’29”. North angle 0 °; east 90° CCW from north Notes:E.E. Barnard discovered this vast and expanding ionized hydrogen cloud by long exposure photographs in 1895. The gas is being blown out and illuminated by very hot nearby O and B stars in Orion. This 2 pane mosaic was stitched together using the improved Photomerge feature found in Adobe Photoshop CS3. This method of generating mosaics is far easier and much more seamless than the older method of combining images with the Free Transform function and adjusting the individual panes with Curves and Brightness to affect smooth transitions.
Archives - click on an image to enlarge NGC 7331 (the Deer Lick Group) and Stephan’s Quintet are two well known and unrelated galaxy groupings in the constellation Pegasus. The Deer Lick Group is dominated by the large spiral galaxy NGC 7331, located on the right side of the above image. The smaller galaxies NGC 7335, 7336, 7337 and 7340 are nearly ten times further away than NGC 7331. 12 x 240 seconds, 10" SN F/4, Canon 350D modified.
Image by Aaron Worley
Coronado PST Ha
This great image illustrates that the Sun has been strangely unblemished this year. On more than 200 days so far this year, no sunspots were spotted. That makes the Sun blanker this year than in any year since 1954, when it was spotless for 241 days.
Jupiter image by Aaron Worley
Celestron 9.25" SCT
Thor's Helmet is created by the
brightest star inside the "bubble". This star
The main bubble is about 30
light years across, and it is 1500 light years
M57 and IC 1296
Mouse over to highlight the spiral galaxy IC 1296
M110 24 x 240 Canon 350D - Modified
NGC 6939 and 6946 12 x 4 min. Canon 350D - Modified Meade 10" SN
IC1311
A small cluster of stars associated with nebula.
Abell 2151 Hercules Galaxy Cluster500 million lightyears8 x 5 min ISO 1600
Perseid 350D - 50mm lens (cropped)
M106 is a bright spiral galaxy located in the constellation Canes Venatici. Like M63 and M94, it was discovered by Pierre Mechain in 1781 and later added to Messier's catalog. Several surrounding galaxies are present in this field of view, including NGC 4217 (lower left), NGC 4220 (lower right), and NGC 4248 (center).
Thin Crescent Rising (23 hours from new)This was my first shot after sighting the moon at 6:11 a.m. 7/31/2008. Photo Details: 1.3 second exposure, Canon 350D, 80-200 f2.8 ED AF lens at 2.8, ISO 800 setting, significantly cropped from original. Moon was 1.34% illuminated, 10 deg up
IC 1396 complex, in the high and far off constellation of Cepheus. Canon 350D modified 10" SN 24 x 120 seconds
M52 and the Bubble Canon 350D modified 10" SN 24 x 120 seconds
The Flaming Star Nebula (IC405, Caldwell 31) is an area in Auriga that glows relatively brightly in hydrogen alpha light due to the interaction of stellar activity and hydrogen gas in the vicinity of the star. 270 minutes [ 27 x 10 minutes ] Astrodon 6nm Hα filter
IC 1318,
the Gamma Cygni region, or the Sadr region is the diffuse emission nebula
surrounding Sadr or Gamma Cygni. Sadr lies in the center of Cygnus' cross. IC
1318 is one of the surrounding nebulous regions, others include the Butterfly
nebula and the Crescent nebula. It contains many dark nebulae in addition to the
emission diffuse nebulae.
Imaging scope was Orion ED80
Sadre Region 200mm f/4 7nm Ha FULL MOON
NGC2841
Scope:
Meade 10'' ARC NGC 5985+5982+5981 Draco Triplet Scope: 9" TMB Apo f/9 CCD: SXV H16 - 4 hours - luminance; 1x1 bin 6 darks; 4.5 hours R,G,B 2x2 bin. 6 darks for 2x2bin.
M3 Canon 350D 10" SN 20 x 120 seconds
M13 and friends Used Skyview and Minnesota Automated Plate Scanner - North Galactic Pole (MAPS-NGP) Download larger image here
M5 in Serpens 10" F4 SN Canon 350D - IR modification 20 x 120 sec ISO 1600 Darks, Bias, Flats Photoshop Download larger image here (2MB)
Celestron 9.25" SCT at f/30 Shaker Heights, OH
Supernova 2008ax in Canes Venatici's Cocoon Galaxy, NGC 4490 10" Schmidt-Newtonian Canon 350D - IR Filter remover 5 - 6 minute subs Guided with F/5 80mm and Meade DSI Pro Maxim DL Photoshop CS3 Cropped
The Cave nebula region (Sh2-155) in Cepheus Dietmar Hager
TMB 130/780
apochromat with field flattener
NGC 3718 + NGC 3729 Dietmar Hager (Austria) Scope: 9" TMB Apo f/9 Lum; f/7 OSC CCD: SXV H16 L: 27x10 min; SXVF M25C 27x10 min Software: AstroArt4 image acqu. guiding, preprocessing: Maxim DL; Registax; CCD sharp Processing: postprocess. PS CS2 and Pix InSight LE
NGC 3372 Eta Carina 3 x 4 min.
Haven't been too many nights for imaging.....so here's a collage of images.
30 Frame Mosaic Image 60 Hours of Exposure, RGB FSQ106, STL11000 Rob Gendler Click here for full frame image with labels
From observing site in Selsey the Moon just barely nicked the planet itself but pleasingly covered about 40% of the rings. The difference in brightness of the Moon compared to Saturn was huge at the time and in order to get both objects imaged simultaneously, one must suffer. In this case I exposed correctly for Saturn which meant that the Moon’s limb was burnt out. A number of shots were taken at 30s intervals (10s movie captures at 60fps, fixed on Saturn) which gave me the positional information I needed to build the composite you see here. The RGB image of Saturn was captured just before the occultation and the lunar limb just after (this is a three frame mosaic). The interval positions shown are separated by 90s in time. South is up in the image and the Moon would be moving towards the upper right. Pete Lawrence, Selsey England Technical Details:
Propeller nebula (DWB 111) in Cygnus
TMB 130/780
apochromat with field flattener
Comet Holmes and the California Nebula Modified Canon 350D made this possible
The "Leo Trio" Galaxy Group (M65,M66,NGC3628) Thank you Éder Iván
TMB 130/780
apochromat with field flattener
Markarian's Chain in Virgo
TMB 130/780
apochromat with field flattener
Comet Holmes and the California Nebula Canon 350D - 50mm - one 300 sec. exposure
LDN1622 - The Dancing Dolphin
NebulaASA N12 f/3.5
STL11000M
The Heart Nebula
Scope: Takahashi Epsilon 250
Venus - Jupiter Conjunction 1-31-08 Canon 350D, 200mm f/2.8 lens 1.5 seconds, ISO 800 Foxfour Complements of Stefano Conti 12" Meade a F7 ST10XME lum 30 hr + OIII and SII VdB 152 wide field nebula in Cepheus Takahashi BRC-250, 1260 mm, F/5 - Takahashi FSQ-106, 530 mm, F/5 Finger Lakes ProLine 16803 / CFW-4-5 German equatorial mount Astro-Physics 1200 GTO LRGB 300:60:60:60. L bin 1, RGB bin 2 14,15,16 Jun 2007 Sicily, Loc. Piano Battaglia -Madonie FWHM: 5.4" 21.4 mag. per squared arcsec MaxIm-DL, Registar, PhotoShop
NGC 7094 planetary nebula Thank you Don Goldman NGC7094 has a magnitude of 13.6 and an apparent diameter of 1.6 arc minutes and is located near globular cluster M15. Don shot the image with a RC Optical 16″ f/8.9 Ritchey-Chrétien, SBIG STL11000 CCD camera, and an exposure of 5.25 hours Barnard's Star motion Thanks to Peter Erdman This is really neat! The huge proper motion of Barnard's Star (~10 arc sec/yr) Five 10 sec exposures taken 1 year apart (5 years in this image) TMB8 f/9 ST10 camera red filter NGC6939 and NGC6946 in Cepheus Thank you Hunter Wilson
Canon 30D
Unmodified
Moon and Mars Rick Saunders 1-20-08
Canon XT
with a Nikkor 180 f/2.8ED stopped to f/4 Vela supernova remnant About 11,000 years ago a star in the constellation of Vela exploded. This bright supernova may have been visible to the first human farmers. Today the Vela supernova remnant marks the position of a relatively close and recent explosion in our Milky Way Galaxy. A roughly spherical, expanding shock wave is visible in X-rays. In the optical photograph shown here, the 100+ light-years span spherical blast wave is shown in detail. As gas flies away from the detonated star, it reacts with the interstellar medium, knocking away closely held electrons from even heavy elements. When the electrons recombine with these atoms, light in many different colors and energy bands is produced. The Vela SNR image presented here is one of the largest deep-sky image ever released; the full-resolution version is a whopping 1.018 gigapixel, or 1,018 megapixel. For comparison, a modern digital camera produces images of just 8-10 megapixel and a good modern LCD screen is able to show just 1/1000th of the full-res in a time. The uncompressed version of the file is nearly 3 Gigabytes. The image's field of view is about 9.3 × 8.5 arc degrees, so it shows a plague of sky nearly wide as 19 times the apparent diameter of the full Moon. A fantastic picture of LDN 673, a dark nebulae complex in Aquilla by Bernhard Hubl. Taken with TeleVue NP101 and SBIG ST2000XM CCD camera Total exposure of 8 hours and 48 minutes.
by CVAS Member: Aaron Worley Celestron 9.25" SCT at f/40 DMK 21AF04.AS monochrome camera Astronomik RGB filters 2000 frames per channel captured, 400 stacked per channel 33 ms per frame, 30 fps
Eta Carina Narrowband Greg Bradley
Takahashi NJP Model-Z Temma-2
350x GOTO Mount
ESA / DLR / FU Berlin (G. Neukum)
Cederblad 214 and NGC 7822 in the Hubble Palette Thanks to Enrico Africa
SBIG Research Series STL-6303E Class 1 CCD Camera
This image
represents 20 hours and 18 minutes of total usable exposure time (6 hours of
H-alpha, 7 hours of SII, 7 hours of OIII, and 6 minutes each RGB for
Comets 17P and 8P Russ Swaney M31/M32/M33/M34/N752/N925/N404 Canon 350D 50 mm f1.4 @ f3.2 1x600 sec. For a larger image here.
Vela Supernova remnant Greg Bradley
Takahashi NJP Model-Z Temma-2
350x GOTO Mount
Beta Lyrae (Sheliak) Thank you Peter Muks Takahashi TSA-102S 102mm APO Refractor
Camera:
Canon EOS 350 D
M96 - Thank you Adam Block
SBIG Research Series STL-11000M Class 1 CCD Camera
17P and Perseus by Alessandro Maggi
Takahashi Epsilon 180ED Hyperbolic Astrograph Saturn by Damian Peach 14" Schmidt Cassegrain @ F39 Lumenera Lu075M CCD camera South Buckinghamshire, UK
Antares region Complements of Takehiko Hashimoto Equatorial: EM-200T2.Jr |