Pleiades M45 | September 2021

Pleiades M45 imaged in September 2021 with a Celestron Travel Scope 70 , UV-IR cut filter, and an ASI 533 astronomy camera, guided with a DIY off-axis guider (OAG) and an ASI 174MM guide camera. A total of 10 minutes exposure stacked and processed in SIRIL without calibration frames.

Pleiades M45

For a complete list of astrophoto images, click here.

Related link: Eastern Veil Nebula

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

Helix Nebula

Helix Nebula imaged in September 2021 with a Sky-Watcher Equinox 100ED, ZWO duo nebula filter, and an ASI 533 astronomy camera at 565 mm focal length (using a 0.63x DIY focal reducer, guided with a DIY off-axis guider (OAG) and an ASI 174MM guide camera. A total of 38 minutes exposure stacked and processed in SIRIL without calibration frames.

Helix Nebula

For a complete list of astrophoto images, click here.

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

Eastern Veil Nebula

First light image of a DIY off-axis guider OAG fitted to a Sky-Watcher Equinox 100ED using an ASI 174MM as a guide camera, imaging at 565 mm focal length (0.63x DIY focal reducer). This image was taken in September 2021 with an ASI 533 cooled astronomy camera and a ZWO duo nebula filter, for a total of 1.7 hours. Stacked and processed in SIRIL without calibration frames.

Eastern Veil Nebula, 1.7 hours

For a complete list of astrophoto images, click here.

Related link: Western Veil Nebula

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

Transit of Europa, Ganymede, and Callisto

When you look at Jupiter through a telescope, you usually see four moons lined up with the planet. From time to time, a moon may pass in front of Jupiter’s disc in an event called a transit. A transit is a rare event since it occurs only when at least one moon lines up with Earth and Jupiter. On August 15, 2021, however, three of Jupiter’s four largest moons—Europa, Ganymede, and Callisto—passed in front of Jupiter, a very rare event which I have observed and captured using a small telescope.

Three of Jupiter’s four largest moons passed in front of Jupiter on August 15, 2021 (Legend: 1-Europa, 2-Europa’s shadow, 3-Ganymede, 4-Ganymede’s shadow, 5-Callisto, 6-Io). Image taken with a 4 inch f/9 refractor and an ASI533 camera, Philippines.

Related link: View all posts about transit
For a complete list of astrophoto images, click here.

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

Clavius Crater

Clavius crater imaged with a Sky-Watcher 4 in f/9 refractor, 25 mm eyepiece, and an ASI 533 camera. Registering and stacking done in SIRIL.

Clavius crater imaged with a 4-inch telescope and an astronomy camera

For a complete list of astrophoto images, click here.

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

Western Veil Nebula

First light image of a DIY 0.63x focal reducer fitted to a Sky-Watcher Equinox 100ED. This image was taken in September 2021 with an ASI 533 cooled astronomy camera and a ZWO duo nebula filter, for a total of 14 minutes, tracked and unguided. Stacked and processed in SIRIL without calibration frames.

The Western Veil Nebula in Cygnus, a supernova remnant


For a complete list of astrophoto images, click here.

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

Copernicus and Montes Apenninus

Copernicus crater and the Montes Apenninus mountain range imaged with a Sky-Watcher 4 in f/9 refractor, 25 mm eyepiece, and an ASI 533 camera.

Copernicus crater and the Montes Apenninus imaged with a 4 inch f/9 refractor

For a complete list of astrophoto images, click here.

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

Jupiter Opposition | 2021

The best time to image and observe Jupiter (and Saturn or any other outer planet) is during opposition, when the planet, as viewed from Earth, is opposite the Sun (as the Sun sets in the west, the planet rises in the east), hence, the term opposition. Two conditions favorable to imaging happen during opposition: (1) Jupiter and Earth will be at their closest point in their orbits around the Sun, thus, making the planet appear largest when observed from Earth, and (2) Since the Sun is opposite Jupiter as viewed from the Earth, the planet is well-illuminated, thus, faster exposures can be taken resulting to sharper images. The Jupiter photo below was taken on August 7, two weeks before the 2021 opposition.

Jupiter imaged during the August 2021 opposition with a 4 inch f/9 refractor, 4x Barlow, and an ASI 533 camera. One of its large moon, Io, the cloud bands, and the Great Red Spot, are visible in this photo. Image processing done in SIRIL.

August is particularly rainy (and stormy) in the Philippines, and we seldom get treated with clear skies at this month.

For a complete list of astrophoto images, click here.

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

Saturn | Eyepiece Projection

In eyepiece projection, an image is projected onto the camera’s sensor using an eyepiece. In this Saturn photo, I used a 4 in f/9 refractor and a 25 mm eyepiece to project an image onto the sensor of ASI 533 astronomy camera. The magnification of the image depends on the focal length of the telescope, the focal length of the eyepiece, and separation between the eyepiece and the camera’s sensor. While longer telescopes, higher-power eyepieces, and wider separation between the eyepiece and the camera will produce more magnified images, the amount of detail that can be resolved will still depend on the aperture or the diameter of the telescope’s objective mirror or lens.

Saturn imaged through eyepiece projection during the August 2021 opposition with a 4 inch f/9 refractor, a 25 mm eyepiece, and an ASI 533 camera. Image processing done in SIRIL.

For a complete list of astrophoto images, click here.

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

Transit of Io | August 2021

The Galilean moons may sometimes cross the disc of Jupiter as viewed from the Earth in an event called a transit. This image of the moon Io transiting Jupiter was taken on August 8, 2021, from Bacoor, Cavite, using a 4-inch f/9 refracting telescope and an ASI 533 astronomy camera.

Transit of Io

For a complete list of astrophoto images, click here.

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

Total Lunar Eclipse | 26 May 2021

Total Lunar Eclipse imaged with a 4-inch f/9 refractor and a DSLR camera on May 26, 2021 in Bacoor City, Philippines. To watch our guided lunar eclipse observation (livestream), click here.

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 Image the Milky Way

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

Earthshine | March 2021

I’ve observed and photographed the moon’s earthshine, in which the crescent moon’s darker surface is illuminated not directly by the Sun, but by sunlight reflected off the Earth.

Moon’s Earthshine | Sky-Watcher 4 in f/9 refractor

For a complete list of astrophoto images, click here.

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

Venus | July 2020

Among all the planets, Venus is the brightest. It is usually seen an hour before sunrise, or an hour after sunset. The phases of Venus may be observed and photographed with a small telescope. This image of the crescent Venus was taken with a Canon 1100D and a 4 inch f/9 refractor.

For a complete list of astrophoto images, click here.

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

Milky Way | Bolinao

We went on a road trip to Bolinao, Pangasinan. At daytime, we explored the beaches and tourist spots and at night, we stargazed and imaged the Milky Way! With a sky that is relatively dark, I was able to take a photo of the Milky Way with the resort as foreground.

Milky Way in Bolinao, Pangasinan

For a complete list of astrophoto images, click here.
Related link: How to Image the Milky Way

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

Total Lunar Eclipse | 2018

Total Lunar Eclipse January 31 2018
Total Lunar Eclipse taken with a 4-inch f/9 refractor and a DSLR camera on January 31, 2018 at the PAGASA Observatory in UP Diliman, Quezon City, Philippines

For a complete list of astrophoto images, click here.

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

Mars | May 2016

As Earth and Mars revolve around the Sun, there are instances when these two planets are close to each other, and this happens every 2 years. This is the time when Mars is best photographed and this is also the window when spacecrafts are sent to Mars! This image of Mars was taken during one of its closest approaches to Earth, revealing the dark and light patches on its surface, along with white clouds in its atmosphere. I used an SPC900NC web camera to capture this image. Image processed in IRIS.

For a complete list of astrophoto images, click here.

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

Solar Eclipse | March 2016

Image of the partial solar eclipse on March 9, 2016, taken with a 4 in f/9 Sky-Watcher 100ED refractor, a DSLR camera, and a solar filter.

For a complete list of astrophoto images, click here.

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

Lovejoy C/2014 Q2 | January 2015

Comet Lovejoy C2014 Q2 taken with a 4 inch f/9 telescope and a tracking mount. The comet’s green coma and hint of its tail, are visible in this photo. Comets are difficult to image because they move relative to the stars, producing a trail. Processing software corrects for this drift and stacks the image of the comet without producing a trail.

For a complete list of astrophoto images, click here.

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