2024-03-03 08:45
The post NGC6820 nebula and NGC6823 cluster appeared first on astrojolo Read More
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Backyard amateur astronomy blog. Imaging, science, technics, processing, reviews.
2023-12-03 11:35
The post Markarian’s Chain of galaxies appeared first on astrojolo Read More
2023-10-19 19:02
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2023-09-01 10:20
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2023-06-26 21:33
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2023-06-03 09:58
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2023-05-24 11:44
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2023-05-03 16:57
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2023-04-06 17:50
The post Sh2-132 Lion nebula appeared first on astrojolo Read More
2023-03-14 16:27
The post Askar FMA230 review appeared first on astrojolo Read More
2023-03-06 08:13
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2023-01-16 13:37
The post Dark nebulae Barnard 171 and LDN673 appeared first on astrojolo Read More
2022-12-10 13:01
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2022-11-15 18:36
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2022-10-21 05:07
The post IC5146 Cocoon nebula with Barnard 168 appeared first on astrojolo Read More
2022-10-11 12:43
The post Sh2-171 aka NGC7822 emission nebula appeared first on astrojolo Read More
2022-09-04 08:24
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2022-07-14 09:13
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2022-06-20 13:24
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2022-05-24 08:34
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2022-04-04 17:45
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2022-03-14 09:03
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2022-03-06 11:06
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2022-02-08 21:54
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2022-01-14 09:08
The post Sh2-188 Dolphin nebula appeared first on astrojolo Read More
2022-01-03 10:51
The post William Optics ZenithStar 80 II ED – astrophoto review appeared first on astrojolo Read More
2021-12-20 13:36
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2021-12-01 22:12
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2021-11-23 16:57
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2021-10-14 08:09
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2021-07-04 20:05
The post Coma Cluster of galaxies appeared first on astrojolo Read More
2021-04-21 09:06
The post Orion Belt with or without stars appeared first on astrojolo Read More
2021-03-23 09:27
The post Mars and Pleiades in the one field of view appeared first on astrojolo Read More
2021-02-24 09:34
The post QHY247C review – part I appeared first on astrojolo Read More
2021-01-14 16:02
The post NGC7380 Wizard nebula appeared first on astrojolo Read More
2020-10-28 15:14
The post NGC6823 emission nebula in Vulpecula appeared first on astrojolo Read More
2020-10-09 08:16
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2020-09-21 13:12
The post Star removal with Starnet++ appeared first on astrojolo Read More
2020-09-11 13:45
The post Canon 550D astrophotography – first light appeared first on astrojolo Read More
2020-08-27 12:26
The post Mount periodic error appeared first on astrojolo Read More
2020-07-17 07:17
This comet is somehow unexpected guest. It was discovered by a team using the NEOWISE space telescope on March 27, 2020. F3 means it is the third comet discovered in the second half of March… Read More
2020-06-18 11:44
Messier 63 Sunflower galaxy is somehow iconic object. Once you saw it, you probably will not forget it. It is a spiral galaxy with no central bar feature and moderate wound arms. There are n… Read More
2020-05-25 13:41
Messier 98 is nice, almost edge-on (74 degrees inclination) galaxy located about 44 million light years away. It is a member of Virgo Cluster, but belongs to constellation Coma Berenices. Me… Read More
2020-04-18 17:18
Messier 85 (NGC4382) is a quite bright and easy target both for visual and photographic observations. It can be spotted with binoculars, and is an easy catch for larger telescopes. But if yo… Read More
2020-04-15 18:03
NGC5033 is not in the primary or even secondary list of astrophotography targets. This spiral galaxy lies about 40 million light years away and can be found in the constellation Canes Venati… Read More
2020-04-10 18:15
Menkalinan (beta Aurigae) is a spectroscopic eclipsing binary star system. The two components appear as single star to the visual observations, but their orbit plane is almost aligned with o… Read More
2020-03-27 15:36
This object was on my astroimaging target list since I remember. I am perfectly aware that imaging galaxies under suburban sky is pretty demanding task. I also know, that one clear night wou… Read More
2020-03-19 10:35
Big Dipper is a large asterism – a part of Ursa Major constellation. Asterism stars do not necessarily belong to the same constellation, and also may not be gravitationally bound. But… Read More
2020-03-12 07:43
During last observing session I pointed telescope with attached spectroscope to well known Pleiades open cluster. It is also called “Seven Sisters” cluster, because this is the u… Read More
2020-03-04 14:28
Last session with LowSpec spectroscope was only a few hours long due to weather. But still it was enough to capture some spectra of Be type stars, but not only. I also pointed telescope to M… Read More
2020-02-24 11:01
Since you are here you probably are interested somehow in astronomy. And you probably already are aware of terms like Doppler effect or radial velocity. In ancient times, when I started to r… Read More
2020-02-02 10:21
Star 40 Eridani is a triple system located not so far away – about 5 parsecs (that is about 16 light years). In cosmic scale it is just a neighbourhood. Its main component is K type st… Read More
2020-01-21 11:43
Alnitak and Mintaka are two bright stars located at the ends of Orion’s Belt. Both belongs to rare spectral class O, that comprises the hottest and massive but also shortest living sta… Read More
2020-01-18 18:50
In the previous post you may check what LowSpec spectroscope is, and how does it look. Since the conditions to real first light on stars are still not satisfied, I decided to capture spectru… Read More
2020-01-07 10:46
I have been looking for different aspects of astronomy since the time I started to consider astronomy as a hobby. Spectroscopy was also one of this aspect, but for a long time only in theory… Read More
2019-12-17 18:18
I took a first look at Sequence Generator Pro astrophotography software about two years ago. Due to unfortunate weather I was able to perform only two or three tests sessions during 45 days… Read More
2019-11-24 10:50
Messier 1 nebula, also known as Crab, is a supernova remnant in the constellation of Taurus. It corresponds to a bright supernova recorded by Chinese astronomers in 1054. Apparent diameter o… Read More
2019-11-18 08:14
End of the year is coming, nights getting longer at the northern hemisphere, many people start to think about gifts and presents. Winter night sky can impress many of us, and we may start to… Read More
2019-10-19 18:09
Not so long time ago two entries preseting monochromatic hydrogen alpha images appeared at my blog. These were Cygnus Wall in NGC7000 and Lagoon and Trifid nebulae. Now both of these frames… Read More
2019-10-17 07:10
Deep sky (extended) objects seen with telescope have greater surface brightness than objects observed with naked eye – FALSE It’s quite unintuitive, but it is so 🙂 The hu… Read More
2019-09-25 21:40
I already made a two entries about observing and measuring doouble stars (here and here). Over last one year and half I had a few sessions with this interesting type of objects. Many of them… Read More
2019-09-20 06:54
There are many galaxies in the Universe, and sometimes two of them will come close enough to start interact between them. But it may be more than two, and that is the case of Hickson 92 gala… Read More
2019-09-12 13:13
NGC7000 is a well known emission nebula in Cygnus, close to prominent Deneb star. Whole NGC7000 North America is large cloud of interstellar matter that covers area of several apparent Moon… Read More
2019-09-04 11:25
As you may already know Cassiopeia was a queen of Aethiopia and wife of king Cepheus. These mythological characters were put together also in the night sky. And there is plenty of things at… Read More
2019-08-27 11:51
These two clouds of interstellar matter are placed probably in the most prominent area of Milky Way in the constellation of Sagittarius. Under dark sky Lagoon can be seen with naked eye as f… Read More
2019-08-19 17:01
It’s been well over two years since I got into my hands Samyang 135 f/2 glass. Since that time I found out, that all positive reviews about this lens proved to be true. This lens is op… Read More
2019-07-19 05:58
50 years ago astronauts of mission Apollo 11 have been traveling to the Moon. They were somewhere in the middle of this outstanding journey, and they landed on the Moon on July 20th, 1969 at… Read More
2019-06-05 07:40
If you are interested in more details about M57, you can look for some earlier entries about it. It is one of the objects I quite often return to. If you are visual observer, then you probab… Read More
2019-06-03 09:48
I already imaged M82 together with M81, and also recorded SN2014J supernova in this galaxy, but M82 itself has never been one and only target of my image. Up till now 🙂 Messier 82 is… Read More
2019-05-07 07:12
I have already imaged M51 galaxy several times. I think it is actually my most often imaged galaxy (though it may be M82 as well 🙂 ) But it is no surprise at all. M51 is a real gem a… Read More
2019-04-30 06:39
M82 Cigar Galaxy is well object known to astronomy amateurs. If you are visual observer, then you most probably have already seen it. If you are astrophotographer, then you most probably hav… Read More
2019-04-20 20:33
NGC2903 is located about 30 million light years away. Though it is spring time object it was discovered on November 16, 1784, by (no surprise here) William Herschel. To him, the object seeme… Read More
2019-04-15 08:29
Messier 85 (larger, to the right) is a lenticular galaxy located in Coma Berenices constellation. Some scientists still believe it is rather elliptical galaxy. It is located about 60 million… Read More
2019-04-11 07:04
NGC2158 is the symbol that may ring some bells for most of astronomy amateurs, but probably not many of them can immediately say what it is. If you image the night sky then most probably you… Read More
2019-03-22 10:49
The Moon is very tempting and graceful imaging target. It is enough to have some longer focal length instrument without any tracking abilities to capture Moon picture – any dobsonian t… Read More
2019-03-15 14:34
First look TS Optics 71SDQ quadruplet refractor is somehow new product targeted mainly for portable astroimaging. It seems to be successor of well known quadruplet 65Q, and since their basic… Read More
2019-03-04 08:17
This year January was a really cloudy time. That’s why I was even more surprised by sudden clear night that occurred on January, 19th. Conditions were not perfect – transparency… Read More
2019-02-28 07:37
1304 Arosa asteroid is yet another main belt object that orbits the Sun. It orbits around Solar System central star in 5 years and 9 months. Arosa diameter is estimated to 40km, and it is ac… Read More
2019-01-24 20:12
So, in the previous part we learned some basics – how to switch pin on and off, and then relays that can control power for devices, or for example DSLR shutter. In this part we will tr… Read More
2019-01-17 11:04
I already captured this well known nebula over four years ago. This time I wanted to go a little bit deeper to interesting interior of Pacman, but it requires quite a lot of captured data to… Read More
2019-01-07 08:12
M74 galaxy is located in constellation of Pisces. Distance to this grand design spiral galaxy has been determined to 32 million light years. The number of stars in M74 is estimated to 100 bi… Read More
2019-01-05 09:46
There are many places in the space where new stars are born. Reflection nebulae IC4954 (near center) and 4955 (lower left) is one of them. These nebulae surround open cluster Roslund4. Its a… Read More
2018-12-11 10:19
Arduino is open hardware platform that became extremely popular due to its simplicity, free and friendly development environment and massive number of ready to use examples and libraries tha… Read More
2018-11-21 14:20
If you are an astroimaging amateur and capturing narrowband frames, you probably already needed to make a decision – how to compose all these channels into one colourful image. There i… Read More
2018-10-22 11:06
Abell 82 is at the very end of the list of popular astroimaging targets. This planetary nebula has apparent size similar to size of well known M57 Ring nebula, but Abell 82 is much, much fai… Read More
2018-10-15 14:41
KjPn8 is not well known planetary nebula in Cassiopeia, though probably many of astroimages contain this obiect, because it is quite close to famous NGC7635 Bubble nebula and M52 open cluste… Read More
2018-10-12 08:23
Despite the fact, that NGC7086 is an open cluster in frequently visited and popular part in the sky, it is not often imaged. NGC7086 lies about 4,200 light years away, and was discovered by… Read More
2018-09-21 13:43
This one is another holiday wide field capture. IC1396 nebula was the same kind of problem for me as California nebula – it never fit into field of view of my permanent imaging setups… Read More
2018-09-08 20:00
Messier 27 Dumbbell (aka Apple Core Nebula) was the first planetary nebula to be discovered (in 1764 by Charles Messier). From his notes he reports: I have worked on the research of the nebu… Read More
2018-09-05 06:59
NGC1499 emission nebula is so (apparently) large, that it did not fit to any field of view of my “large” imaging setups. So I decided to capture it with my travel wide field setu… Read More
2018-09-03 08:02
Comet 21P/Giacobini-Zinner has been discovered in 1900 by Michael Giacobini for the first time. Its another approach has been missed, and in 1913 it was discovered again by Ernst Zinner. Com… Read More
2018-08-29 11:15
This galaxy pair is actually non-interacting, visual pair placed approximately 55 million light years away. NGC4762 (left) is edge-on galaxy. Was considered to be a barred spiral galaxy befo… Read More
2018-08-28 07:51
This is not quite often imaged area of the sky. It lies at the border of Perseus and Camelopardalis (Giraffe) constellations. This place is mostly occupied by dark clouds. Several of them we… Read More
2018-07-23 07:06
It is maybe worth to mention at the beginning, that M16 Eagle nebula was discovered neither by Messier nor by Herschel (as usual 🙂 ), but by Jean-Philippe de Chéseaux in 1745… Read More
2018-07-20 08:30
World today is flooded with data. This also applies to astroimaging amateurs. Modern CMOS cameras has a large number of pixels and single subframe after converting to RGB color can occupy se… Read More
2018-07-03 12:38
I have imaged NGC4565 already here and here, but on last Zatom astroparty I took a look onto this galaxy and could not resist to picture is again with 10″ telescope. Needle Galaxy is a… Read More
2018-06-28 10:29
Long time ago we have been doing astroimages with negative (or positive) film. We had one chance to take a long exposure photo. Then we have been given with CCD sensors – much more sen… Read More
2018-06-18 07:12
Messier 57 is a planetary nebula with all the consequences. It was formed about 7,000 years ago, when a dying red giant star expelled its shell of ionized gas to form the nebula. And this st… Read More
2018-06-14 07:15
Why we need to guide? Because mount mechanics are of limited accuracy, and once this accuracy is lower than our imaging setup resolution we need to guide. There are some mounts available equ… Read More
2018-06-11 14:06
Messier 106 is intermediate spiral galaxy in Canes Venatici. It was discovered by Pierre Mechain in 1791 and is located about 22 million light years from Earth. M106 is quite bright galaxy a… Read More
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