Daily Archives: June 9, 2014

How to Identify that Light in the Sky 

Image Credit & Copyright: HK (The League of Lost Causes)

 What is that light in the sky? Perhaps one of humanity’s more common questions, an answer may result from a few quick observations. For example – is it moving or blinking? If so, and if you live near a city, the answer is typically an airplane, since planes are so numerous and so few stars and satellites are bright enough to be seen over the din of artificial city lights. If not, and if you live far from a city, that bright light is likely a planet such as Venus or Mars – the former of which is constrained to appear near the horizon just before dawn or after dusk. Sometimes the low apparent motion of a distant airplane near the horizon makes it hard to tell from a bright planet, but even this can usually be discerned by the plane’s motion over a few minutes. Still unsure? The above chart gives a sometimes-humorous but mostly-accurate assessment. Dedicated sky enthusiasts will likely note – and are encouraged to provide – polite corrections.

NASA APOD 09-Jun-14

Uranus, Titania, and Oberon

9d5f0800640e74cfce732f9ccb254699.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Chad Quandt
 At opposition, Uranus is visible to the naked eye in dark skies, and becomes an easy target even in urban conditions with binoculars. In larger amateur telescopes with an objective diameter of between 15 and 23 cm, Uranus appears as a pale cyan disk with distinct limb darkening. With a large telescope of 25 cm or wider, cloud patterns, as well as some of the larger satellites, such as Titania and Oberon, may be visible.

Imaging telescopes or lenses: 10″ f/5.8 Newtonian
Imaging cameras: Canon 60Da
Mounts: Software Bisque Paramount MX
Guiding telescopes or lenses: Astro-Tech AT72ED
Guiding cameras: SBIG ST-i Mono
Software: Adobe Photoshop CS4, Software Bisque The Sky X Pro
Accessories: TeleVue 4x Powermate
Dates: Aug. 14, 2013
Frames: 10×60″
Integration: 0.2 hours

Author: Chad Quandt
AstroPhotography of the day by SPONLI 09 June 2014