Jump to content

  •  

Latest News



Astro-Devices (of Ukraine) Parallelogram Standard II Pro

Feb 23 2017 04:04 PM | Dhellis59 in User Reviews

This will not be a comprehensive, or even scientific review. I will just share what I would have wanted to know if considering purchasing one of these parallelograms.

Read story →    -----

A System of Binoviewing

Feb 23 2017 02:06 PM | The Ardent in Articles

What is a System of Binoviewing? An assembly of common observing equipment that’s powerful, portable, easy to use, effective, and fun to use. In my experience Binoviewers enhance the observation of Targets of Excess Light (moon, safe solar, and planets) I believe that given a half-decent telescope, most amateurs will see a much greater benefit from Binoviewing than upgrading any single optical component.

Read story →    -----

February 2017 Skies

Feb 18 2017 10:52 AM | cookman in This Month

Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, February Moon

Focus Constellations: Leo, Cancer, Gemini, Orion, Taurus, Auriga, Perseus, Cassiopeia, Cepheus, Draco, Ursa Minor, Ursa Major, Lynx, Camelopardalis



Read story →    -----

Cosmic Challenge: A Case of Mistaken Identity

Feb 04 2017 07:53 AM | PhilH in Phil Harrington's Cosmic Challenge

There once was a mystery in Lynx. The story opened in 1790 when William Herschel discovered a small, nebulous glow about 2½° northwest of 27 Lyncis. He later added it as number 830 in his list of "very faint nebulae" (abbreviated H-III-830) and apparently moved on without noticing a second, fainter blur of light just to the northeast. That second object was discovered 66 years later by William Parsons, 3rd Earl of Rosse, through his 72-inch "Leviathan" reflector. Both were later incorporated into John Dreyer's New General Catalog. NGC 2474 is described as "faint, pretty small, extended?, brighter middle, very small star?, large star north following." NGC 2475 is simply noted as "makes a double nebula with" NGC 2474.

Read story →    *****

January 2017 Skies

Jan 07 2017 11:04 AM | cookman in This Month

Highlights: Comet Journal, Martian Landers, Meteor Showers, Planet Plotting, January Moon

Focus Constellations: Auriga, Gemini, Orion, Taurus, Perseus, Cassiopeia, Andromeda, Cepheus, Draco, Ursa Minor, Ursa Major, Lynx, Camelopardalis



Read story →    -----

Cosmic Challenge: Barnard's Loop

Dec 31 2016 08:20 AM | PhilH in Phil Harrington's Cosmic Challenge

One of the greatest naked-eye challenges goading amateur astronomers around the world is trying to spot the elusive arc of nebulosity known as Barnard's Loop. Cataloged officially as Sharpless 2-276, Barnard's Loop is a ghostly, 10°-wide semicircular bow of nebulosity that wraps around the eastern side of Orion, the Hunter. In long exposure photographs, it bears the unmistakable resemblance to portions of the Veil Nebula supernova remnant in Cygnus. Spotting it by eye stands as a monumental test for observers.

Read story →    *****

December 2016 Skies

Dec 10 2016 09:20 AM | cookman in This Month

Highlights: Comet Journal, Martian Landers, Meteor Showers, December Solstice, Planet Plotting, December Moon

Focus Constellations: Camelopardalis, Auriga, Gemini, Orion, Taurus, Perseus, Cassiopeia, Andromeda, Pegasus, Cepheus, Draco, Ursa Minor, Ursa Major, Lynx



Read story →    *****

Telescope Making for the Relatively Unskilled

Dec 03 2016 11:46 AM | xrayvizhen in Articles

I’ve received several private messages from a few people on CN who have seen some pictures I’ve posted of the telescope I made, which is also my icon picture, and asked if I had a build thread. I didn’t. But all along I had an idea of writing this article because while I have seen many pictures and build threads of outstanding scopes built by people who are obviously either machinists, carpenters or engineers or just very experienced builders with a full suite of shop tools, I am none of those and I only have a couple of hand tools and minimal skills & experience. But I built this thing and it’s outstanding, so I figure that maybe there are folks out in the world who would like give telescope making a try but might be a little intimidated by some of the beautiful work displayed, especially on the DIY forum. This is NOT another “How to Build a Telescope” article. Rather, it’s more of an idea on why I built what I did, some of the planning and thought processes involved and how to get around the lack of tools or skills. (Hint – subcontract the hard stuff.)

Read story →    *****

Cosmic Challenge: Globular Clusters in the Fornax Dwarf Galaxy

Dec 03 2016 07:13 AM | PhilH in Phil Harrington's Cosmic Challenge

Let's begin this challenge with a riddle. What's big and round, close at hand, and yet nearly impossible to see? If you answered "the Fornax Dwarf Galaxy," then you are correct! The Fornax Dwarf, a dwarf spheroidal system, covers a 17'x13' area of our late autumn sky and lies about 530,000 light years from the Milky Way. That's well within the confines of our Local Group of galaxies. And with a magnitude rating of 9.3, it sounds like it should be bright and easy to see. But when we look its way, it's not there. Even the best photos manage to record only an incredibly dim, elliptical haze peppered by some 19th-magnitude stars!

Read story →    *****

Review: Explore Scientific 16”, Europe edition, late 2016

Nov 12 2016 12:32 PM | brebisson in User Reviews

I have been considering buying or making a 16 incher for a while now. Mirrors only (if you wanted to make your own scope) cost at least 1200€ to 1400€ (Hubble optics or GSO, not counting import duties and shipping cost). So, when I learned that Explore Scientific had a European sales on their Ultra Light series, placing the 16” at 1698€, I jumped on it!

Read story →    ****-




Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics