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Messier 1 (M1), also known as the Crab Nebula, Taurus A, or NGC 1952, is an expanding supernova remnant and pulsar wind nebula. It is located in the northern constellation Taurus, the Bull. The Crab Nebula has an apparent magnitude of 8.4 and can be seen with binoculars in good viewing conditions.
Messier 1 is the only supernova remnant listed in Messier’s catalogue and the most famous object of its kind in the night sky. The nebula has a total luminosity 75,000 times that of the Sun and lies at a distance of 6,500 light years from Earth.
The Crab Nebula is the result of a supernova explosion, SN 1054, that was observed by Chinese astronomers in 1054 AD. It was the first deep sky object to be associated with a historical supernova explosion.
Messier 1 is about 11 light years (3.4 parsecs) in diameter and keeps expanding at a rate of about 1,500 kilometres per second. The supernova remnant contains the Crab Pulsar, a rapidly rotating neutron star that spins at a rate of 30.2 times per second. The pulsar, also catalogued as PSR 0531+21, is the youngest one observed. It emits radiation in optical, radio, ultraviolet, X-ray and gamma ray wavelengths.
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Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA
Mount: SkyWatcher EQ6-R Pro
Controller: ZWO ASIAIR Pro
Main Camera: ZWO ASI533MC Pro at -10C
Filter: ZWO UV/IR cut filter
Focuser: ZWO EAF
Guide Camera: ZWO ASI174MM Mini guidecam
Guide via: ZWO OAG
Stacked from:
Lights 57 at 120 seconds, gain 101, temp -10C
Darks 30 at 120 seconds, gain 101, temp -10C
Flat 30 at 100 ms, gain 101, temp -10C
Dark Flat 30 at 100 ms gain 101 temp -10C
Bortle 4 sky.
Integrated the saved frames in Astro Pixel Processor.
Adjusted in Photoshop CS4 and Topaz DeNoise AI
Callisto in the background and Ganymede casting it's shadow. Taken with a Vixia HD camcorder thru a Celestar 8" telescope for 90 sec, processed thru registax and ps. Conditions were unsteady - Jupiter was quite wavery.
Saturn taken using a Celestron Nexstar 4 SE telescope and a Sony Cybershot DSC-W210 compact digital camera. I took a video, then stacked the frames using Registax 5.
Celestron C8 SCT with Hutech 190mm diameter DRF Quark-Lunt LS60FHa double stacked etalons with TeleVue 4xPowermate Daystar 0.5x reducer ASI174MM camera
Celestron NexStar 8SE
DMK21AU04.AS
Star Analyzer 100
Software: RSpec
By Amateur Astronomer and Planetary Astrophotographer: Vlamir da Silva Junior
Team Celestron meets customers and gives away prizes at the Southern California Astronomy Expo at Oceanside Photo & Telescope.
I shot this image of the moon during the early morning hours before dawn on January 15, 2012. The telescope was a Celestron FirstScope, purchased for $49.00 at B&H Photo.
I attached a Meade 32mm lens to a Sony 7 megapixel digital camera to capture the image. Photoshop Elements 9.0 and Apple iPhoto were used to enhance contrast and details.
About the moon...
A quick reference guide to prominent lunar features
The best place to observe details on the moon is along an imaginary line separating night from day. This is called the terminator. With an unaided eye you get a hint of what the lunar surface is like. With binoculars or a small telescope you discover smooth lunar seas, rigid highlands and countless meteorite craters. Here are lunar features you can observe from your own backyard.
Craters – Ancient impact basins where meteorites struck the moon. An accumulation of thousands of impacts over billions of years.
Crater Rays – Bright splashes left on the surface of the moon after a crater has been created.
Maria – Early astronomers thought these smooth surfaces were seas or bodies of water. They are actually large plains of hardened lava from volcanic activity.
Mountains – The moon’s mountains match the majestic heights of those on earth. The largest mountain range is called the Apennines with individual peaks rising above 5000 meters.
Rilles – Faults and channels that meander over flat and mountainous lunar terrain. Rilles may have contained flowing lava during the moon’s early days.
copyright - Mark Mathosian
Team Celestron meets customers and gives away prizes at the Southern California Astronomy Expo at Oceanside Photo & Telescope.
Please let me know when you have had enough of these...
Again, entirely uncropped, edited or modified. No wait - I rotated it.
Schematic for the rotational motor encoders for (newer) Celestron AG5-GT telescope mounts. According to multiple online references, the specific part number for the optical encoder is AEDR-8300-1Q, which has a resolution of 180 lines per inch.
Telescopio de 14'' - Diagonal de Cuarzo Dieléctrico de 2'' William Optics - Ocular Axiom LX de 23mm con 82° de Campo de Visión - Telrad - Buscador de 9x50 - Telescopio auxiliar de 600mm con un Autoguía Starshoot de Orion
Celestron C11gps alt/az mount, spc900 Phillips webcam, 6 min capture @ 30fps, processed in Registax6 and photoshop.
Photoshoot with the Celestron SkyMaster 25x70 Binoculars. Full Review on www.bestbinocularsreviews.com/
Seeing was decent, but variable. Some clouds rolled in during the time. Kind of wished I had started earlier because the seeing looks like it was good for a time before I started recording.
Celestron C8, 2x barlow + ASI120MC
Slowest speed - Reads 1.57 Volts
ASTROMASTER/POWERSEEKER MOTOR DRIVE
For Celestron CG-2 and CG-3 equatorial mounts
Team Celestron meets customers and gives away prizes at the Southern California Astronomy Expo at Oceanside Photo & Telescope.
Team Celestron meets customers and gives away prizes at the Southern California Astronomy Expo at Oceanside Photo & Telescope.
Photoshoot with the Celestron SkyMaster 25x70 Binoculars. Full Review on www.bestbinocularsreviews.com/
6 subs @ 10 mins, 800 ISO, 8 darks, flats and bias applied.
Telescope - Orion 80mm CFT ED
Mount - Celestron CGE
Camera - Hutech Modified Canon T3i
Guiding - Orion SSAG Mini with PHD
Processed with Images Plus 4.5B