ZWO ASI071MC Pro – Page 4

M78 Nebula

December 13, 2018 JakubK

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Messier 78 is a reflection nebula located in constellation Orion, visually not far from stars Alnitak Alnilam and Mintaka, which form the Orion’s belt. This nebula is one of the brightest reflection nebulas on the sky, due to reflection of the light coming from two bright stars called HD38563A and HD38563B.

My previous attempt to capture this nebula during my expedition to Schwarzwald was not that successful, due to the due problems, therefore I dedicated nearly 3 hours to this DSO. However, it looks like the picture would need longer integration time.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	50x180s, Gain 94, bin 1x1,
Date	2018-12-13

M77 Galaxy

December 13, 2018 JakubK

Galaxy

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Cetus DSO Galaxy Gemini gf53 Hutech IDAS LPS-D2 M77 Messier77 Newton 254/1000 Spiral galaxy TS MaxField coma corrector ZWO ASI071MC Pro

Messier 77 is a spiral galaxy located in constellation Cetus and it is approximately 47 million light-year away from Earth. Due to its diameter 170 light-year, this galaxy is one of the biggest objects of Messier Catalogue.

The galaxy in the bottom right corner is called NGC 1055, which together with M77 creates binary system.

The picture is a stack of 20 pictures, each 3 minutes long, i.e. only one hour of integration time. This is obviously not enough for such deep space object, but I wanted to capture another DSO this night. Moreover, I was not able to wait till 1 o’clock, when the street lamps are switched off, because at this time, this galaxy was nearly reaching the horizon.

Now it’s time to slew to M78 Nebula.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1000 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	20x180s, Gain 94, bin 1x1,
Date	2018-12-13

M103 Open Cluster

December 13, 2018 JakubK

Open cluster

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Cassiopeia Cluster DSO Gemini gf53 Hutech IDAS LPS-D2 M103 Messier103 Newton 254/1000 Open cluster TS MaxField coma corrector ZWO ASI071MC Pro

Messier 103 is an open cluster located in constellation Cassiopeia. With its distance 8500 light-year from Earth, this cluster is one of the most distant clusters from Messier’s catalogue.

The picture is a stack of 56 pictures, each 2 minutes long, i.e. nearly two hours of integration time. December is a month, which is rich with deep space objects, but it’s also rich with clouds. In whole December I got only single opportunity to take my telescope outside, therefore this is not the only deep space object, which I captured this night.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1000 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	56x120s, Gain 94, bin 1x1,
Date	2018-12-13

M35 Shoe-Buckle Cluster

November 18, 2018 JakubK

Open cluster

2 Comments

Cluster DSO Gemini Gemini gf53 Hutech IDAS LPS-D2 M35 MaxField coma corrector Messier35 Newton 254/1000 NGC2158 Open cluster ZWO ASI071MC Pro

Messier 35 an open cluster located in constellation Gemini. The cluster is approximately 2800 light-year far from Earth and it contains roughly 200 stars.

Second open cluster NGC 2158 is located in the background (upper right part of the picture). I didn’t know that there is another cluster in field of view. If I would know it, I would change the composition of the picture.

This cluster was the last one out of four captured during single night. In the early morning I slewed to M35 and went to sleep. The camera captured 56 exposures, 3 minutes each, before the dawn arrived. This means nearly 3 hours of total exposure time.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	1000 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	56x180s, Gain 94, bin 1x1,
Date	2018-11-18

M38 Open Cluster

November 18, 2018 JakubK

Open cluster

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Auriga Cluster DSO Gemini gf53 Hutech IDAS LPS-D2 M38 MaxField coma corrector Messier38 Newton 254/1000 Open cluster ZWO ASI071MC Pro

Messier 38 is an open cluster located in constellation Auriga. It has diameter 25 light-years and it’s approximately 3500 light-year away from Earth.

I managed to capture two open clusters this night already (M39 and M34) and there is still one to go (M35). Therefore I didn’t dedicate a lot of time on M38 – this means that the picture is an integration of one hour of exposure time.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	20x180s, Gain 94, bin 1x1,
Date	2018-11-18

M34 Open Cluster

November 18, 2018 JakubK

Open cluster

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Cluster DSO Gemini gf53 M34 MaxField coma corrector Messier34 Newton 254/1000 Open cluster Perseus ZWO ASI071MC Pro

After capturing M39 I slewed the telescope to another deep space object. Specifically to an open cluster Messier 39. This cluster is located in constellation Perseus and it is approximately 1400 light-years away from Earth and it has diameter roughly 24 light-years.

The picture is a stack of 72 two minute subframes, which means 144 minutes of total integration time.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	72x120s, Gain 94, bin 1x1,
Date	2018-11-18

M39 Open cluster

November 18, 2018 JakubK

Open cluster

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Cluster Cygnus DSO Gemini gf53 M39 Messier39 Newton 254/1000 Open cluster TS MaxField coma corrector ZWO ASI071MC Pro

Messier 39 is an open cluster located in constellation Cygnus and it’s only 825 light-year away from Eartch. The cluster is visually located on the galactic plane of the Milky Way, therefore there are so many stars in the background.

I already captured M39 two years ago, but with different camera and different coma corrector. This time I used slightly bigger sensor and brand new corrector TS MaxField. This corrector should reduce the focal length by 5% and also due to the larger sensor I got bigger field of view compared to my previous picture. However, the corrector is not capable of eliminate the coma fully and in the corners are the stars elongated. I spent some time by adjusting the tilt, but this obviously didn’t solve the problem. This means that the only corrector which is capable of eliminating the comatic aberration fully is Explore Scientific HR CC.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-20°C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	58x180s, Gain 94, bin 1x1,
Date	2018-11-18

Here is the analysis of the curvature by CCD Inspector. I already adjusted the tilt by integrated push-pull screws on ASI071, but there is still some room for improvements.

Chasing darkness in Schwarzwald

October 16, 2018 JakubK

Travel

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Black Forest Explore scientific coma corrector iOptron CEM25P Milky Way Newton 150/600 Olympus PEN-F Schwarzwald Star trails Travel ZWO ASI071MC Pro

My second expedition after the dark skies (this year) led us to Germany, specifically to Black Forest (Schwarzwald) in the state of Baden-Württemberg. We rented a small cabin for a weekend and I took the same equipment which I took to Milos, i.e. telescope newton 150/600 mm, mount iOptron CEM25P and ZWO 071 Pro camera.

As soon got dark, the Milky Way showed up. I measured SQM and it reached 21.1, which is not spectacular, but far better compared what I have at home.

The equipment was working perfectly, but the dew started to form on the secondary mirror, because the cabin is close to river Breg, which means a lot of humidity. I never had dew problems with Newtonian telescope up to now. Lessons learned – I need a dew shield. I managed to capture only M74 Galaxy and M78 Nebula.

Anyway, I also managed to capture wide angle photos with my Pen-F and Fish eye lens.

Here are the star trails – exposure 30x30s:

And here is the Milky Way – exposure 1x30s ISO 3200 f1.8:

M74 Phantom Galaxy

October 12, 2018 JakubK

Galaxy

0 Comment

Black Forest DSO Explore scientific coma corrector Galaxy iOptron CEM25P M74 Messier74 Newton 150/600 Schwarzwald ZWO ASI071MC Pro

Messier 74, sometimes called Phantom Galaxy, is a galaxy located in the constellation Pisces. This galaxy has two prominent spiral arms and it is a typical example of a spiral galaxy. The distance of 35 million light-years from Earth has been estimated, therefore what we are looking at here is a 35 million year old picture.

The photo was taken in Schwarzwald under decent dark skies and it’s an integration of 45 photos, each 3 minutes exposure, i.e. more than 2 hours of exposure time in total.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 – UV IR Block Filter
Exposure	45x180s, Gain 94, bin 1×1,
Date	2018-10-12

M2 Globular Cluster

October 4, 2018 JakubK

Globular cluster

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Cluster DSO Gemini gf53 Globular cluster Hutech IDAS LPS-D2 M2 MaxField coma corrector Messier2 Newton 254/1000 ZWO ASI071MC Pro

Messier 2 is a globular cluster located in constellation Aquarius and it’s approximately 37’000 light-year away from Earth. It’s one of the biggest known globular cluster, because it contains approximately 150 000 stars and it has 175 light-years in diameter. After Crab Nebula M1, this cluster is the second object of Messier’s catalogue of deep space objects.

This picture was the second captured object (after M71) during one night and it’s an integration of 3 hours of exposure.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-15C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	60x180s, Gain 94, bin 1x1,
Date	2018-10-04

M71 Globular cluster

October 4, 2018 JakubK

Globular cluster

1 Comment

Cluster DSO Gemini gf53 Globular cluster Hutech IDAS LPS-D2 M71 MaxField coma corrector Messier71 Newton 254/1000 ZWO ASI071MC Pro

Messier 71 is a globular cluster located in constellation Sagitta. The cluster is located approximately 12 – 13 thousand light-years from earth. The classification of M71 as a globular cluster was questionable for a long time, because it lacks central star concentration and therefore it was considered as an open cluster. The diameter of this cluster is only 27 light-years, which is very low value for globular cluster.

Well I am back in light pollute sub-urban area. I can use bigger and heavier telescope, but I am missing dark skies of Milos. The picture is an integration of 38 pictures, with exposure time 3 minutes. Total exposure time was approximately 2 hours.

I managed to test new TS-Optics 2″ 3-element MaxField Newtonian Coma Corrector, which should be 2” version of Wynne corrector. It should have significant advantage compared all 2” coma correctors on the market: it reduces focal length by 5%, should correct full frame CCD (we will see about that) and it should have very low vignetting. I will have to extend my World Wide Coma Correction exercise.

Technical details:

Telescope	Newton 254/1000 mm
Aperture	254 mm
Focal length	950 mm
Mount	Gemini G53f
Autoguiding	ZWO 174MM, TS 60/240 mm
Camera	ZWO 071 Pro @-15C
Corrector	TS-Optics 2" 3-element MaxField
Filters	Hutech IDAS LPS-D2
Exposure	38x180s, Gain 94, bin 1x1,
Date	2018-10-04

NGC6871 Open Cluster

September 15, 2018 JakubK

Open cluster

1 Comment

Cluster Cygnus DSO Explore scientific coma corrector iOptron CEM25P Milky Way Milos Newton 150/600 NGC6871 Open cluster ZWO ASI071MC Pro

NGC6871 is an open cluster located in Cygnus, has less than 50 stars and it is 5135 light-years from Earth. Constellation Cygnus is visually located on the galactic disk of the Milky Way; therefore there are many stars in the background. Particularly interesting are the dark nebulae, surrounding the cluster.

Picture was taken under dark skies of Milos Island and in total, it’s an integration of on 63 minutes.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	21x180s, Gain 134, bin 1x1,
Date	2018-09-15

M70 Globular cluster

September 15, 2018 JakubK

Globular cluster

1 Comment

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M70 Messier70 Milky Way Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier70 is a globular cluster located in constellation Sagittarius. The cluster is at a distance approximately 29’300 light-years from the Solar System. Neighbor cluster M69 was captured during the same night.

M70 is the 15^th globular cluster captured by me on Milos Island – mission accomplished.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	37x60s, Gain 134, bin 1x1,
Date	2018-09-15

M69 Globular Cluster

September 15, 2018 JakubK

Globular cluster

2 Comments

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M69 Messier69 Milky Way Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier69 is a globular cluster located in constellation Sagittarius. It is approximately 29’700 light-years away from Earth. Together with Messier70 are close to galactic center of Milky Way (distance between them is 1’800 light-years) and there were two last deep space objects captured on Milos Island. These two were the last missing Messier objects, which I wanted to capture and I was very happy that I managed.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	37x60s, Gain 134, bin 1x1,
Date	2018-09-15

M45 Pleiades

September 15, 2018 JakubK

Open cluster

1 Comment

DSO Explore scientific coma corrector iOptron CEM25P M45 Messier45 Milos Newton 150/600 Pleiades Seven sisters Subaru ZWO ASI071MC Pro

Messier 45, sometimes called Seven Sisters, Pleiades, or Subaru, is an open cluster located in the constellation Taurus. The cluster contains many hot blue stars and it’s characterized by reflection nebulosity. The cluster is easily visible to the naked eye and therefore it has been used in the mythology of many cultures around the world.

The picture was created by stacking 80 pictures with a total integration time of 4 hours. In order to capture the nebulosity properly, the light pollution should be minimal, which I manage to experience during our trip to Milos Island. Unfortunately, the mount was not cooperating and in the declination axis occurred oscillations due to backlash. Therefore the stars are a bit oval. Maybe it’s time to upgrade the mount and pick something backlash-free. I would select something portable like Astrotrac 360 or Avalon Instruments M-Zero.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 – UV IR Block Filter
Exposure	60x180s, Gain 134, bin 1×1,
Date	2018-09-15

IC5146 Cocoon Nebula

September 13, 2018 JakubK

Dark Nebula H II nebula

1 Comment

Barnard 168 Barnard168 Cocoon Nebula Cygnus DSO Explore scientific coma corrector IC5146 iOptron CEM25P Milos Nebula Newton 150/600 ZWO ASI071MC Pro

IC5146, sometimes called Cocoon Nebula, is an emissive nebula located in constellation Cygnus. Central star in the nebula is responsible for the excitation of the surrounding hydrogen gas. On the picture is also captured dark nebula Barnard 168, which creates the strip and it looks like the Cocoon Nebula has a tail.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	43x300s, Gain 134, bin 1x1,
Date	2018-09-13

M23 Open Cluster

September 13, 2018 JakubK

Open cluster

2 Comments

Cluster DSO Explore scientific coma corrector iOptron CEM25P M23 Messier23 Milky Way Milos Newton 150/600 Open cluster ZWO ASI071MC Pro

Messier 23 is an open cluster located in constellation Sagittarius not far from the star Polis (µ Sgr). Visually it’s surrounded in rich star field, because in this direction are located star clouds of Milky Way. The cluster contains approximately 150 confirmed members and it’s about 2000 light-years away from the Solar System.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	23x120s, Gain 134, bin 1x1,
Date	2018-09-13

M20 Trifid Nebula M21 Open Cluster

September 13, 2018 JakubK

H II nebula Open cluster

2 Comments

DSO Explore scientific coma corrector iOptron CEM25P M20 M21 Messier20 Messier21 Milos Newton 150/600 Trifid nebula ZWO ASI071MC Pro

Messier 20 (called Trifid Nebula) has been captured by me already on Gavdos. This year I had a telescope with shorter focal length, therefore I managed to capture two objects of Messier’s catalogue on one shot. Specifically it’s mentioned Trifid Nebula and M21 Open Cluster (down left from the nebula). The nebula has been already described in my previous post and it’s located not far from M8 Lagoon nebula. The cluster M21 contains approximately 60 stars and it’s characterized by quite dense core, where the distance between neighboring stars is only one light-year.

The picture was taken under dark skies of Milos Island and it’s an integration of only 54 minutes of exposure time.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	18x180s, Gain 134, bin 1x1,
Date	2018-09-13

NGC6946 Fireworks Galaxy, NGC6939 Ghost Bush Cluster

September 10, 2018 JakubK

Galaxy

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Cepheus Cluster Cygnus DSO Explore scientific coma corrector Fireworks Galaxy Galaxy Ghost Bush Cluster iOptron CEM25P Milos Newton 150/600 NGC6939 NGC6946 Open cluster ZWO ASI071MC Pro

NGC 6946, sometimes called Fireworks Galaxy, is a beautiful spiral galaxy located between constellations Cepheus and Cygnus. It is approximately 22.5 million light-years away from Earth and it’s a part of Virgo Supercluster of galaxies. The name didn’t get from the shape, but due to frequent explosions of supernovae.

Next to the galaxy is located NGC6939 Ghost Bush Cluster, which is a part of our own Galaxy, therefore the distance from earth is “only” 4000 light-years.

The picture is the last one from the day. I slewed to target, switched on auto guiding and went to sleep. Therefore the picture is an integration of 73 photos, each 5 minutes long, i.e. 6 hours of total time. This is probably the picture with the longest integration time from Milos.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	73x300s, Gain 134, bin 1x1,
Date	2018-09-10

M28 Globular Cluster

September 10, 2018 JakubK

Globular cluster

1 Comment

Cluster DSO Explore scientific coma corrector Globular cluster iOptron CEM25P M28 Messier28 Milos Newton 150/600 Sagittarius ZWO ASI071MC Pro

Messier 28 is a globular cluster located in constellation Sagittarius. Center of Milky Way takes care about the background, which is filled by many stars. The cluster is 17900 light-year away from the Solar system and it has diameter approximately 60 light-years.

Technical details:

Telescope	Newton 150/600 mm
Aperture	150 mm
Focal length	660 mm
Mount	iOptron CEM25P
Autoguiding	QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM
Camera	ZWO 071 Pro @-10C
Corrector	Explore Scientific HR coma corrector
Filters	Astronomik L-1 - UV IR Block Filter
Exposure	25x120s, Gain 134, bin 1x1,
Date	2018-09-10

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