Celestron Skymaster 15 x 70 Binocular Review

 

I’ve been an amateur astronomer for over 10 years. Ive owned dozens of different telescoeps and binoculars over the years, for quick observing portability and ease of use, binoculars cant be beat.

Dont get me wrong I love my telescopes, but I don’t always have the time and energy to haul one out and go through all the setup and tear-down.

The Celestron Skymaster series of binoculars are a GREAT value for the money. They provide great views and celestron really stands behind thier products. With their lifetime no-fault warranty, one of the best in the industry, you can buy products from them knowing that if anything ever goes wrong for ANY reason, they will always stand behind their product.

The fit and finish of the Skymasters is excellent and the views are very good for the Price.

There is some slight distortion (straight lines at the edge of the field are curved), and a small amount of visible astigmatism and chromatic aberration at the edges of the field.

These flaws are minor considering the SkyMaster’s aperture and are not a problem for all but the most critical and picky of observers.

GET A TRIPOD

These puppies are heavy! (about 3 Lbs), You will either want a good tripod or a reclining lawn chair to get a steady vew.

I wear Glasses

Eye relief is really important to me, The Skymaster 15×70 binoculars have about 18mm of eye relief, I could wish for a little more, but it is enough, and the rubber eye cups roll back to make it easy to focus with my glasses on.

Overall I love my Skymasters. I probably use them more often that my dob and definately more than hauling out my LX200

  • Pros: Fantastic value for the price
  • Light enough to support by hand (for Short periods)
  • BaK-4 prisms Multicoated optics
  • Cons: Outer 15% of the field is soft and a little blurry
  • A tripod is REQUIRED to use for extended periods

Product Description
Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use – especially over long distances. Each SkyMaster model features high quality BAK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 15×70 version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration.

Objective Lens Diameter (mm) 70 mm
Magnification (x) 15x
Angular Field of View 4.4°
Linear Field of View 231ft / 77m
Exit Pupil (mm) 4.7 mm
Eye Relief (mm) 18 mm
Close Focus 43 ft (13 m)
Optical Coatings Multi-Coated
Weight (oz) 48 oz (1361 g)
Prism Glass (Type) BaK-4
Twilight Factor 32.40

How to Use a Planisphere

planisphere

We use constellations with signs of the zodiac or animals, because these are convenient easy ways of helping to remember where particular stars are. We name the constellations for the shapes their stars make when joined up. Cygnus is in the shape of a swan with wings outstretched, and Scorpius is shaped like a scorpion. Sometimes a shape will be part of a constellation, such as the seven bright stars in Ursa Major that form the saucepan and handle of the Big Dipper.

Continue reading

News

Universe Today

Space and astronomy news

A new study from Brown University has offered a possible explanation for how surface water could have flown on Mars roughly 4 billion years ago.

The post Flowing Water on Mars Likely Cold and Frosty, Says New Study appeared first on Universe Today.

Author: Matt Williams
Posted: October 17, 2017, 8:16 pm

PORT CANAVERAL/KENNEDY SPACE CENTER, FL - The now twice flown SpaceX first stage booster that successfully delivered the SES-11 UHDTV satellite to orbit Wednesday, Oct 11, sailed proudly back home into Port Canaveral during a beautiful Sunday sunrise, Oct. 15 only three days after it safely landed on a tiny droneship at sea.

The post Twice Flown SpaceX Booster Sails Proudly into Port Canaveral at Sunrise 3 Days After Sunset Launch and Droneship Landing: Photos appeared first on Universe Today.

Author: Ken Kremer
Posted: October 17, 2017, 3:58 am

A recent study by UCLA scientists has shown a link between extreme rainstorms on Titan and surface features detected by the Cassini orbiter.

The post Scientists Find Evidence of Extreme Methane Storms On Titan appeared first on Universe Today.

Author: Matt Williams
Posted: October 16, 2017, 9:05 pm

About 130 million years ago, in a galaxy far away, two neutron stars collided. The cataclysmic crash produced gravitational waves, ripples in the fabric of space and time. This event is now the 5th observation of gravitational waves by the Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo collaboration, and the first detected that was […]

The post First Cosmic Event Observed in Both Gravitational Waves and Light appeared first on Universe Today.

Author: Nancy Atkinson
Posted: October 16, 2017, 7:04 pm

This week’s Carnival of Space is hosted by Brad Rogers at The Evolving Planet blog. Click here to read Carnival of Space #531. And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should really join the carnival. Just email an […]

The post Carnival of Space #531 appeared first on Universe Today.

Author: Susie Murph
Posted: October 16, 2017, 5:58 pm

CAPE CANAVERAL AIR FORCE STATION, FL — A clandestine black ops satellite supporting US national defense launched into the black skies over Florida’s spaceport in the dead of night Sunday, Oct. 15, on a mission for the U.S. governments National Reconnaissance Office (NRO) that lit up the night skies offering a spectacular vista on its journey to orbit.

The post Clandestine Black Ops NRO Satellite Launches into the Black over Florida Spaceport Skies on ULA Atlas V on 5th Try appeared first on Universe Today.

Author: Ken Kremer
Posted: October 16, 2017, 5:00 pm

KENNEDY SPACE CENTER, FL - Elon Musk’s extraordinary vision of an era when re-flown rockets are offered as a ‘routine service’ rather than the exception is a ‘major sea change getting closer’ to fruition with each passing day thanks to SpaceX, said SES CTO Martin Halliwell in an exclusive interview with Universe Today, following the stunning sunset blastoff of the SES-11 UHDTV commercial satellite on another ‘flight-proven’ Falcon 9 booster that also re-landed - thus completing another remarkable round of rocket recovery and recycling or ‘launch, land and relaunch!’

The post Musk’s Era of Routinely Re-flown Rockets (ala SpaceX) a ‘Major Sea Change Getting Closer Every Day’ Says SES CTO Halliwell: SES-11 Launch Gallery appeared first on Universe Today.

Author: Ken Kremer
Posted: October 15, 2017, 2:07 am

According to a recent statement by members of NASA's Human Research Program, the threat of radiation will not stop the proposed "Journey to Mars" and other deep-space missions.

The post NASA Undeterred by the Threat of Space Radiation appeared first on Universe Today.

Author: Matt Williams
Posted: October 14, 2017, 11:15 pm

Two new studies, independently of each other, have managed to fins some of the "missing matter" contained within the Cosmic Web.

The post Astronomers Find the Missing Normal Matter in the Universe, Still Looking for Dark Matter, Though appeared first on Universe Today.

Author: Matt Williams
Posted: October 13, 2017, 10:41 pm

A new study by an international team of scientists has found a connection between debris disks and giant planets, which could aid in the hunt for exoplanets.

The post Debris Disks Around Stars Could Point the Way to Giant Exoplanets appeared first on Universe Today.

Author: Matt Williams
Posted: October 13, 2017, 7:49 pm

Introduction to Webcam Astrophotography

img_3593

The technology of webcam astrophotography is only a few years old. In this time it has rapidly developed from short-exposure 6-bit per channel black-and-white images to long-exposure 16-bit images in full color. This new technique is competing well with conventional astrophotography. Increasing numbers of amateur astronomers are turning to webcams to display their excellent images.

Continue reading

Effective Deep-Sky Observing

main_asteroid_0If you’ve ever looked at a bright star through a telescope, it will look much brighter and spectacular, but not contain any detail. It’s still a point of light. Much more fascinating and challenging is to focus your telescope on deep-sky objects such as star clusters, nebulae and galaxies. Many of these can be seen through any reasonable small telescope.

 

But on first sight the galaxy or nebulae you’ve chosen may be unimpressive, just a sort of indistinct, grey cloud with only a few lonely stars visible, like oases in a desert. The problem is the human eye’s inability to see well at night. It can be very disappointing to see such brilliant, colorful images in astronomy books and magazines, and then observe very little through the telescope.

Continue reading

Some Important Astronomical Words You Should Know

As distances in space are well, astronomical, we can’t use measurements that we use here on Earth, such miles or kilometers. The Sun is 93 million miles away from the Earth, so that particular measure isn’t going to get us far. Also because space is three-dimensional, two-dimensional measurements aren’t really suitable. This is why we use angular measure, with degrees of angles.

 opo0420a

Continue reading

The Inexpensive Imagers Meade DSI Series and Orion Starshoot

The Meade Deep Sky Imager PRO is a monochrome CCD astro-imager, with high-performing simple-to-use monochrome CCD camera, which allows amateur astronomers to image and process spectacular photographs of deep-sky objects such as star clusters, nebulae and galaxies. The camera is most suited to the intermediate to advanced amateur. The Deep Sky Imager PRO comes with an RGB filter set that produce amazing RGB and LRGB images.

Continue reading