NGC2175 from La Palma

Date2019/01/09
LocationLa Palma / Spain
ObjectOpen cluster NGC2175
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8
Barlow lensnone
MountEQ6 Syntrek
Cooling-10°C
Luminance8x 600s, bin: 1x1
Red7x 150s, bin: 2x2
Green7x 150s, bin: 2x2
Blue7x 150s, bin: 2x2
Dark2x
Flat10x
Total exposure~2h13m

On Wednesday, 9th January I imaged the open cluster NGC2175 the first time from La Palma. The seeing tonight again was very good – around 1.5~2″!

For post-processing I used the free software DeepSkyStacker and GIMP.

The full resolution images is available here.

Clear skies!

Last updated: May 18, 2022 at 9:13 am

A look at the “Lagoon nebula” from La Palma

Tonight I was able to proof that the “Lagoon nebula” M8 was still there ~4100 years ago – wow! With a teapot, a sunlounger (probably better a starlounger) and the right music the night passed quickly 🙂

The total exposure time was ~1h36m. The seeing conditions were around 2.2″. It was a clear night without wind. I used my 8″ GSO newton telescope with an Atik383L+ camera (see here). And again I am amazed which image quality is possible with this equipment on this dark sky within this short exposure time. Below is just the luminance part of the image which shows some sharp details of the nebula.

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Astrophotography from Los Llanos de Aridane – Pinwheel Galaxy M101

End of February 2014 I already recorded M101 from Boeblingen near Stuttgart. The total exposure time was about 6 hours (!). This time I did a 2h40m exposure from Los Llanos de Aridane on La Plama with exactly the same equipment. This is the result. From my perspective the two pictures do not have a big difference despite the colour tone which of course depends on the post processing.

Date2017/03/31
LocationLa Palma / Spain
ObjectPinwheel Galaxy M101
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8" GSO Newtonian
Barlow lensnone
MountEQ6 Syntrek
Cooling-10°C
Luminance10x 600s, bin: 1x1
Red8x 150s, bin: 2x2
Green8x 150s, bin: 2x2
Blue8x 150s, bin: 2x2
Dark2x
Flat10x
Total exposure~2h40m

However, it’s interesting to compare the results with respect to their total exposure time: The image recorded from Boeblingen was exposed more than two times longer.

As a result of the long exposure time the stars are not as perfectly round as the ones with a shorter exposure time. Despite that I am happy to see what is still possible from a city like Boeblingen 🙂 Finally I combined both images to one final image by rotating one image until it matched exactly. Maybe I am wrong but I think in the end this combined image has a little more detail than each of the pictures alone. A full resolution image is available here.

Last updated: June 16, 2022 at 12:17 pm

Astrophotography on La Palma – Taking a look at spiral galaxy “Messier 100”

Date2017/03/27
LocationLa Palma / Spain
ObjectMessier 100 (spiral galaxy)
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8" GSO Newtonian
Barlow lensnone
MountEQ6 Syntrek
Cooling-10°C
Luminance11x 600s, bin: 1x1
Red9x 150s, bin: 2x2
Green9x 150s, bin: 2x2
Blue9x 150s, bin: 2x2
Dark2x
Flat10x
Total exposure~2h57m

In a clear night I recorded this image of “Messier 100” – a spiral galaxy located within the southern part of constellation Coma Berenices – from Los Llanos de Aridane on La Palma. It is an LRGB composite consisting of 11 luminance frames a 600 seconds and 9 red, green and blue frames a 150 seconds respectively. The image is also available in full resolution.

The seeing conditions tonight were perfect (seeing ~1.95″) and there was no local wind. The annotated image shows a lot of other interesting objects like NGC4323, IC783, NGC4312 and NGC4328 beside M100. Some objects I was not able to assign, yet – those are marked with question marks and could be additional galaxies.

Clear skies!

Last updated: June 16, 2022 at 12:52 pm