DIY Intervalometer

I’ve built a simple DIY intervalometer for deep-sky imaging, to enable my DSLR camera to take a series of photos of galaxies and nebula. It features a rotary dial with preset exposure times. When used with an autoguider setup, the intervalometer allows taking unattended exposures, while the telescope tracks a galaxy or nebula.

To view posts on DIY projects and astronomical equipment, click here. To get a copy of the sketch, please email eteny@nightskyinfocus.com.

Related links:
Remote Shutter Canon 50D
1990 Kenko NES Equatorial Mount
Ultra-Portable DIY Tracker

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Saturn | May 2021

A hint of Saturn’s Cassini division and the cloud bands are visible in this photo captured with a small 4-inch telescope.

Saturn imaged with a 4 inch f/9 refractor and an SPC900NC web camera, processed in IRIS.

For a complete list of astrophoto images, click here.
Related link: Dash Camera for Imaging Planets

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Jupiter | May 2021

Jupiter’s great red spot, the cloud bands, and two of its moons, are visible in this photo taken with a small 4-inch telescope.

Jupiter imaged with a 4 inch f/9 refractor and an SPC900NC web camera, processed in IRIS.

For a complete list of astrophoto images, click here.
Related link: Dash Camera for Imaging Planets

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Markarian’s Chain

The Markarian’s Chain imaged under city skies with a 4 inch f/9 refractor and a Canon 50D DSLR on a motorized mount with DIY controller. This photo is a stack of 9 frames at 120 seconds sub-exposure, for a total of 18 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M104 Sombrero Galaxy

M104 Sombrero Galaxy imaged under city skies with a 4 inch f/9 refractor and a Canon 50D DSLR on a motorized mount with DIY controller. This photo is a stack of 9 frames at 90 seconds sub-exposure, for a total of 13.5 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M101 Pinwheel Galaxy

M101 Pinwheel Galaxy imaged under city skies with a 4 inch f/9 refractor and a Canon 50D DSLR on a motorized mount with DIY controller. This photo is a stack of 12 frames at 120 seconds sub-exposure, for a total of 24 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Leo Triplet Galaxies | M65, M66, NGC3628

M66 (left), M65 (center), and NGC3628 (right) of the Leo Triplet galaxies imaged under city skies with a 4 inch f/9 refractor and a Canon 50D DSLR on a motorized mount with DIY controller. This photo is a stack of 7 frames at 120 seconds sub-exposure, for a total of 14 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

NGC 5139 Omega Centauri

NGC 5139 Omega Centauri globular cluster imaged with a 4 inch f/9 refractor and a Canon 50D DSLR on a motorized mount with DIY controller. This photo is a stack of 3 frames at 90 seconds sub-exposure, for a total of 270 seconds, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Milky Way | Bacoor

Milky Way imaged from a heavily light-polluted skies of Bacoor, Cavite, just 18 km from Manila. Taken with a Canon 1100D DSLR with kit lens on a DIY tracker. This photo is a stack of 5 frames at 90 seconds sub-exposure, for a total of 7.5 minutes, ISO 400, processed in IRIS.

For a complete list of astrophoto images, click here.
Related link: How To Take Photos of the Milky Way

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M33 Triangulum Galaxy

M33 Triangulum Galaxy imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 2 frames at 90 seconds sub-exposure, for a total of 3 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M81 & M82 Galaxy

M81 Bode’s and M82 Cigar Galaxy imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 4 frames at 240 seconds sub-exposure, for a total of 16 minutes exposure time, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M27 Dumbbell Nebula

M27 Dumbbell Nebula imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 5 frames at 90 seconds sub-exposure, for a total of 7.5 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Flame and Horsehead Nebula

Flame and Horsehead Nebula in the constellation Orion, imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 6 frames at 180 seconds sub-exposure, for a total of 18 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M1 Crab Nebula

M1 Crab Nebula, imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 6 frames at 100 seconds sub-exposure, for a total of 10 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M42 Orion Nebula

M42 Orion Nebula, imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 10 frames at 360 seconds sub-exposure, for a total of 60 minutes, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

M51 Whirlpool Galaxy

M51 Whirlpool Galaxy imaged with a 4 inch f/9 refractor and a Canon 450D DSLR on a motorized mount with DIY controller. This photo is a stack of 8 frames at 240 seconds sub-exposure, for a total of 32 minutes exposure time, processed in IRIS.

For a complete list of astrophoto images, click here.

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Saturn | April 2021

Saturn is now a little bit higher in the early morning sky. While still considerably dimmer than Jupiter, it registers quite well with a web camera. A hint of the ring’s Cassini division and Saturn’s cloud bands are visible in this photo captured with a 4 inch f/9 refractor and an SPC900NC web camera, processed in IRIS.

For a complete list of astrophoto images, click here.

Related links:
Web Camera for Imaging Planets
Dash Camera for Imaging Planets

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines

Mars Occultation | April 2021

The moon is also known to eclipse planets, and one such event involving Mars occurred on April 17, 2021, a relatively rare astronomical event visible in the southern part of the country. I was able to observe and photograph Mars before it was eclipsed or hidden from view by the moon, from Bacoor City, Philippines. Mars’s red hue and some lunar craters are visible in this photo.

For a complete list of astrophoto images, click here.

Related link: Lunar Occultation of Jupiter

Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines