Archive for Binocular

Foggy Crescent Moon

Posted in Astrophotography with tags , , , , , on 2009/03/31 by computerphysicslab

Yesterday’s moon was a bit foggy in my location. Nevertheless I got an image that I am very proud of, because it is the first time I obtain a nearly perfect focus thanks to the binocular focus tip. When doing afocal exposures, you may get a sharp focus using another binocular over the lens. This way you guarantee an infinite precise focus for the camera.

This image was taken as usual, through Vixen 12×80 binoculars and with the Casio Exilim EX-Z80 pocket digital camera. I used only green channel data, because it was the sharpest.

Crescent Moon


Chertan in Leo Major

Posted in Astrophotography with tags , , , , , , , , on 2009/03/23 by computerphysicslab

Chertan is an important star as a reference to locate several galaxies in the area, for example M65 and M66. Tonight I have stacked 550 shots into one image. The night has been clear, but I am located in a light polluted urban area. It has been necessary to substract the pollution from the background twice. The map shows stars up to 10th magnitude and the photo shows up to 12th magnitude.

Chertan - Photo and Map

Meteor in Canis Minor

Posted in Astrophotography with tags , , , , , , , , on 2009/03/22 by computerphysicslab

Serendipitously, I got captured this meteor while exposing Procyon in a shift-and-add series. The field of view measures around 3 degrees. The meteor track becomes cut, but it seems to be not much longer. This meteor could achieved magnitud 1 or 0, similar in bright to Procyon. Taking into account its directionality it may belong to Geminids meteor shower caused by the asteroid 3200 Phaethon.

Meteor & Procyon

M42 last night

Posted in Astrophotography with tags , , , , , , , , , , on 2009/03/21 by computerphysicslab

Last night I could enjoy a really clear night sky at Manaluna Observatory. Meanwhile some of my partners were working hard to complete the Messier Marathon, I took 3 series of no-tracking shots through Vixen 12×80 binocular to M42 in Orion.

The truth is that what I could see through binoculars was much more brilliant and detailed than the next image by far. I think my Casio Exilim digital pocket camera is a bit insensible to dim light …

M42 60 seconds exposure

Trapezium is visible as a spot. The 20″ separation among its components is too close for my binoculars to resolve it. Remember that 20″ is the apparent diameter of Saturn.

Saturn and rings

Posted in Astrophotography with tags , , , , , , on 2009/03/18 by computerphysicslab

Saturn is well placed these nights to be easily observed. The rings are edge-on, so they are difficult to capture with photography. Nevertheless I have got a series of shots and have stacked them all with Registax 5. Take into account I have used the Vixen 12×80 binocular to get this image. Imagine seeing Saturn rings edge-on with a magnification of only 12 …

Saturn through binoculars

Humboldt crater

Posted in Astrophotography with tags , , , , , , , , , , on 2009/03/12 by computerphysicslab

Humboldt crater as seen with the Vixen 12×80 binoculars. This is a big crater but very near to the Moon limb. One day after full moon, Humboldt delivers high contrast images due to its shadow. The day this shot was made, the Moon libration wasn’t the better one to view Humboldt in its extension, but edge-on. The inner central peaks are visible.

Humboldt crater

Praesepe Open Cluster

Posted in Astrophotography with tags , , , , , , , , on 2009/03/12 by computerphysicslab

Praesepe, also known as M44 or the Beehive cluster is one of the brightest open clusters in northern sky. Visible with unaided eye, even in urban areas. I have applied some filters to enhance the picture, including an artificial diffraction mask to get spikes. Using the shift-and-add technique for 1 minute I got this result.

Praesepe M44