Tag: Canary Islands

Chasing darkness on Fuerteventura

This year was a special year. The pandemic outbreak ruined my first attempt of darkness chasing 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 supposed to be 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
Focal length50 mm
MountBaader NanoTracker
CameraCanon EOS 6D Astro modified
Exposure14x20s, ISO 1600

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 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 Canary Islands, where the nebula rises 27° above the horizon. Therefore, this nebula was my primary target of my expedition to Fuerteventura. Unfortunately, the weather didn’t cooperated 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
Exposure40x180s, Gain 94, bin 1x1,

Chasing darkness on La Palma

All of my previous dark-sky expeditions were organized in 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 huge part of the Messier catalogue. 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 few days, preferably somewhere south and even more preferably under dark skies. Googling yielded in brilliant idea – La Palma, Canary Islands. This island belongs to 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 altitude nearly 2500 meters above the sea level. On the whole island there are strict rules for the 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. Dark sky is probably the same touristic attraction on La Palma like the beaches on Greek islands.