Tag: Canary Islands

Chasing darkness on Fuerteventura

This year was a special year. The pandemic outbreak ruined my first attempt of chasing the darkness on the Canary Islands in May. I didn’t give up and as soon the restrictions were released, I purchased plane tickets to Fuerteventura again. We rented a house via AirBnB on the south side of the island, in the middle of nowhere, where the light pollution was minimal (measured SQM 21.2).

The island lies on the 28th parallel, which makes the core of the Milky Way pretty up in the sky. And this was exactly my primary astrophotographic target. I packed recently astro-modified Canon 6D, nifty-fifty 50 mm f1.8 lens and headed south. The aim was to capture the Antares region together with the core of the Milky Way and in the end, I somehow managed.  However, the lens disappointed me a lot, because it suffers from comatic and chromatic aberrations, combined with astigmatism. The stars in the corners are not round, even if the lens is slowed down to f 3.5. I was trying nearly every evening to recapture the Milky Way, but I was fighting with the weather (it was very windy) and with the equipment (polar alignment, shutter release, drained batteries), but I somehow managed to generate at least one decent picture of the desired target. Lessons learned – I need a better 50 mm lens.

Technical details:

LensCanon EF 50 mm f1.8
F-stop2.8
Focal length50 mm
MountBaader NanoTracker
CameraCanon EOS 6D Astro modified
Exposure14x20s, ISO 1600
Date2020-07-22

I also packed 150mm Newtonian, together with my new mount Rainbow Astro RS135. This mount is simply excellent and very portable. I still have Avalon M-Zero, but it is significantly heavier, therefore if I travel with Avalon, I have to order a second suitcase and to travel with two suitcases is not that convenient. Rainbow Astro occupies only half of my luggage, so there was a space for some T-shirts. I must say, that the Avalon is a better mount for tracking and there is no need to do a meridian flip, but the portability is for me more important. The primary target was the Lobster nebula, but I managed to capture some DSOs around Antares and in the core of the Milky Way (Lagoon, Trifid, M4, M6, M7, M24, IC4304).

The conclusion: the weather was much better than in La Palma last year. Every night was cloudless, but it was windy. Fortunately not every day, so in the end, it was a quite successful trip.


NGC6357 Lobster Nebula

Lobster Nebula is a HII region (giant cloud of excited hydrogen gas) located in the constellation Scorpius. The nebula rises only 8° above the horizon in Central Europe, which means, it is submerged in light pollution caused by nearby towns, villages, or cities. The situation is completely different on the Canary Islands, where the nebula rises 27° above the horizon. Therefore, this nebula was the primary target of my expedition to Fuerteventura. Unfortunately, the weather didn’t cooperate and strong winds caused bad seeing and didn’t allow me to capture more frames. So, next time it will be better.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length570 mm
MountRainbow Astro RST 135
AutoguidingZWO 174MM, Guidescope 30 mm
CameraZWO 071 Pro @-0°C
CorrectorTS MaxField
FiltersNo
Exposure40x180s, Gain 94, bin 1x1,
Date2020-07-22

Chasing darkness on La Palma

All of my previous dark-sky expeditions were organized in the summer-autumn part of the year. At this part of the year shines the galactic core of the Milky Way during the night (only if the sky is dark enough) and there are many deep space objects available. During my expedition to Milos, I managed to capture a huge part of the Messier catalog. However, there are some deep space objects, which are badly visible from my home and which have to be captured in the spring. I was researching where can I spend a few days, preferably somewhere south and even more preferably under dark skies. Googling yielded in the brilliant idea – La Palma, Canary Islands. This island belongs to the three most prominent spots on Earth for astronomy (together with Mauna Kea in Hawaii and European Southern Observatory in Chile). The observatory on La Palma is called Roque de Los Muchachos and currently, there is the largest optical, single-aperture telescope on this Planet (The Gran Telescopio Canarias). The observatory is built on the highest mountain of the island at an altitude nearly 2500 meters above sea level. On the whole island, there are strict rules for street illumination, therefore the dark skies are not the privilege of the highest mountains, but nearly everywhere are the conditions great, maybe except two big towns – Santa Cruz de La Palma and Los Llanos. The dark sky is probably the same touristic attraction on La Palma as the beaches on the Greek islands.

Theoretically, La Palma should be a paradise for astrophotographers. How was it in the reality? Well, I was not lucky at all with the weather. I got only one clear night out of ten. During the day it was nice and sunny, but nearly every evening the clouds rolled in and I was able to photograph only dark clouds. According to the weather statistics, there should be only one rainy day in May in La Palma. Moreover, cloud cover should be present only 30% of the month, the rest should be sunny. Hmm, probably we hit the 30% spot in the calendar.

On the other hand, the island is beautiful and offers many other activities, like hiking, whale watching, sightseeing, etc. People are friendly, nature breathtaking, food delicious and vine excellent. From this point of view, it was fantastic. In the end, I was able to capture two deep space objects, which have very low southern declination (not far from the horizon) if observed from Central Europe. Specifically, they were M68 globular cluster in constellation Hydra and M83 Southern Pinwheel Galaxy also in constellation Hydra. These two objects were on my “must capture” list, so in the end, it was not so bad.

Roque de los Muchachos
Roque de los Muchachos
The Gran Telescopio Canarias
MAGIC (Major Atmospheric Gamma Imaging Cherenkov) telescope
Typical evening weather on La Palma in May
Volcán Teneguía
Volcán Teneguía

Puerto de Sto. Domingo
Salinas de Fuencaliente
Mirador de las Mimbreras