Tag: nebula

NGC2175 from La Palma

/ Carsten / Leave a comment
NGC2175 - Open Cluster - 2019/01/09
Date2019/01/09
LocationLa Palma / Spain
ObjectOpen cluster NGC2175
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8
Barlow lensnone
MountEQ6Syntrek
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

Imaging the Milky Way with the EOS6D camera and a Samyang 2.8/14mm lens on an EQ6 mount

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Milky Way - 2019/02/01
Date2019/02/01
LocationLa Palma / Spain
ObjectMilky Way
CameraEOS6D + Samyang 2.8/14mm
Guidingno
Telescope-
Barlow lensnone
MountEQ6Syntrek
Cooling-
Luminance6x
Red-
Green-
Blue-
Dark3x
Flat-
Total exposure~15min.

Once more back on La Palma / Spain. I imaged the Milky Way a few times before from this beautiful location. However, up to now I was always bound to a maximum exposure time of about 20 seconds due to the earth rotation. This time I decided to put the camera – an EOS6D with a Samyang 2.8/14mm lens – on top of an EQ6 mount. This way much longer exposure times with a lower ISO value (i.e. less noise in the image) were possible without getting any star trails. I took 6 frames with ISO 1600 á 148 seconds each. The total exposure time is therefore about 15 minutes.

The frames were then post-processed with rawtherapee and averaged using the ImageMagick “convert” tool. In addition 4 frames of the foreground (the house) were taken and also averaged (of course with disabled EQ6 mount). Finally the two pictures were overlaid and merged with the help of a mask using gimp.

To me it is amazing to see the Andromeda Galaxy (M31), the California Nebula (NGC1499), the Orion Nebula (M42), the Pleiades (M45) and the Horsehead Nebula (B33) clearly on this photo. This overview picture gives a good idea of the brightness, size and exact location of the objects compared to each other.

A full resolution image of the result can be found here. Another image without object descriptions can be found here. I am curious to repeat this procedure in summer when the bright part of the Milky Way will be visible again 🙂

Last updated: May 18, 2022 at 8:37 am

Trifid nebula M20 & open cluster M21 from La Palma

/ Carsten / Leave a comment
Trified nebula (M20) & open cluster M21 - 2017/07/22
Date2017/07/20
LocationLa Palma / Spain
ObjectTrifid nebula (M20) & open cluster M21
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8
Barlow lensnone
MountEQ6Syntrek
Cooling-10°C
Luminance8x 600s, bin: 1x1
Red7x 150s, bin: 2x2
Green7x 150s, bin: 2x2
Blue7x 150s, bin: 2x2
Dark2x
Flat10x
Total exposure~2h12m

Tonight I decided to image the Trifid nebula (M20)
which is quite “close” to the Lagoon nebula M8 from my last session. The seeing tonight was around ~2.4″ which could have been better – but certainly it was still sufficient.

Back in 2013 I already imaged the Trifid nebula with the same equipment but from Boeblingen. It is interesting to see the difference here.

For post-processing I used the free software DeepSkyStacker and GIMP. The full resolution images is available here.

Clear skies!

A look at the “Lagoon nebula” from La Palma

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Lagoon nebula (M8) - 2017/07/20

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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Open Cluster Messier 46

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2017_03_28-M46_cut_web_qual

This image of Messier 46 has also been at the Tacande Observatory in El Paso on La Palma. In fact this is a quite rare object in the sense that it is a star cluster with a planetary nebula. The nebula somehow looks like an eye in the nowhere of space. The image shown above is just an excerpt of the full frame. It is only one 4 minute shot with a modified EOS6D camera with ISO 800. The image is also available in full resolution here.

Clear skies!

Last updated: June 16, 2022 at 12:33 pm