| Search results - "amateur" |
Saturn1172 viewsSaturn taken with a Takahashi Mewlon 300 Dakin 2.4x barlow and an Imaging Source DBK21AU618 OSC camera from Mayhill NM (2600 stacked images using Registax 5.1). Saturn lies about 900 million miles from Earth. It's disk measured 17.9 arc sec at its equator (with rings 40.6")
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The Ringed Planet1339 viewsSaturn is the 6th planet from the Sun at a distance of about 900 million miles. The rings are composed primarily of water ice with particles the size of snowflakes up to house-sized boulders. The rings extend almost 50,000 miles above the planet and average about 60 feet thick (paper thin indeed). To learn more about Saturn, go to our "PLANETS" page. Celestron C9.25 at f25, Imaging Source 21AU618 color camera.
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The Owl Nebula1242 viewsThe Owl Nebula (Messier 97, or M97) is a planetary nebula in the Big Dipper about 2600 light years away. The nebula formed about 6,000 years ago when a Sun-like star died. The nebula gets its name from the owl-like "eyes". This narrowband image consists Hydrogen alpha, Hydrogen beta and Oxygen emission lines captured through a 120mm f/8.3 refractor and Atik 314L+ camera (109 min total exposure).
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Yerkes Observatory1151 viewsYerkes Observatory was established in 1897 in Williams Bay, Wisconsin and is considered the birthplace of modern astrophysics. The observatory is operated by the University of Chicago and houses a 40 inch Alvin Clark & Sons refractor telescope. The telescope remains the largest refractor in the world.
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Space Shuttle Endeavour1070 viewsTook a tour of the Endeavour exhibit in Los Angeles, CA. For more images of the shuttle, check out our AAG Facebook photo album. Endeavour flew to the Hubble Space Telescope on servicing missions and to the International Space Station and installed the Alpha Magnetic Spectrometer.
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The King of the Planets1242 viewsJupiter is visible in the early morning almost directly overhead in late September/early October. Larger than all the other planets combined, its only 1/1000th the mass of the Sun. The bands visible in the atmosphere are due to upwelling compounds whose exact nature is not quite known. Ultraviolet light from the Sun caused the compounds brown, orange and other colors. Imaged taken using a 5" SCT at f25 (~3750mm) using an Imaging Source 21AU618 color camera (1/45 sec exp, 3316 fr cap/2875 stacked /90% qual)
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Who Needed ISON?1114 viewsWhile Comet ISON evaporated while going around the Sun, Comet Lovejoy (C2013 R1) is putting on a show in our morning sky. It is visible low in the NE before sunrise. This is a 4 min exposure through a 100ED refractor at f7.2 with a modified Canon 1000D at ISO 800. The green color is most likely the result of outgassing of primarily diatomic carbon from solar heating. C2013 R1 was discovered on 9/7/2013 and will make its closest approach to the Sun on 12/22.
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A Galactic Rose1218 viewsThe Rosette nebula (Sh2-275) is a large molecular cloud in the constellation Monoceros. The nebula is about 4-6 times the size of the full moon in our night sky. The cloud is mostly comprised of hydrogen gas and is illuminated from the group of hot, young stars near its center. The nebula lies some 5200 light years from the Earth. This image was taken from Alamogordo NM using a 100mm f7.2 refractor and a modified Canon 1000D (XS) DSLR.
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Solar Upheaval1083 viewsThe last few weeks have seen the emergence of several large sunspots as solar maximum peaks. Active Region 1967 is wider than the planet Jupiter and its primary dark cores are big enough to swallow Earth many times over. This image was taken in Calcium-K (393.4 nm) from Alamogordo, NM using a 90mm refractor at f20, and Lunt B1200 Cak module and Imaging Source 41AU02 camera.
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The Lagoon Nebula1184 viewsThe Lagoon Nebula (cMessier 8 or M8, and as NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. The Lagoon Nebula is estimated to be between 4,000-6,000 light years from the Earth. The nebula contains a number of Bok globules (dark, collapsing clouds of proto-stellar material). Imaged using a 100mm F7.2 refractor (112 min) and Hap Griffin modified Canon 1000D DSLR (ISO 800).
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An Edge-On Spiral Galaxy in Coma Berenices706 viewsNGC 4565, sometimes referred to as the Needle Galaxy, is an edge-on galaxy in the constellation Coma Berenices. One can see the galaxy's yellowish central core, which is divided by obscuring dust lanes running the length of the equatorial plane. Total exposure was 10 hrs 20 min taken with a Takahashi CCA-250 f/5 astrograph and QSI683wsg CCD camera (Astrodon Gen2 filters) on a Paramount ME in Mayhill, NM on the nights of 8, 15, 16 May; 17, 18 June 2018 ( 21 x 1200 sec lights; 4 x 1200 sec R; 3 x 1200 sec G; 3 x 1200 sec B all @ -20 degrees C; 24 darks; 128 bias; 128 flats for each channel). Processed in PixInsight 1.8.5.1353 Ripley (x 64). An annotated image can be found on the Amateur Astronomers facebook page https://www.facebook.com/AmateurAstronomersGroup
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M76 - The Little Dumbbell942 viewsMessier 76 was discovered in 1780 by Pierre Méchain and cataloged by Charles Messier that same year. It wasn't until 1918 that M76's true nature as a planetary nebula was discovered by Herber Curtis. Located some 2,500 light years away in the constellation Perseus, M76 it is one of the faintest objects in the Messier catalog at magnitude 10.1. This image was taken from Alamogordo NM using an Astro-tech 130EDT f7 refractor and Atik 314L+ monochrome camera (130 min) using Ha, Hb and OIII signals.
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