elpajare

Thank you both for the comments Seen in real color this galaxy looks more like a jellyfish than a bear footprint. You're right There is no secret in this shot, the 8 "for a telescope is very common in EEVA equipment and the camera is of Chinese origin with an IMX294 sensor without cooling very current too. I have applied flats and darks and I have taken the picture with everyone the default parameters with 25 "exposure which is what I always use for this type of object I was fortunate to have a night with good seeing and the Startools treatment helped to recover the smallest details.

This galaxy is very visited at this time of year. What many ignore is that it is number 6 of the Arp catalog of peculiar galaxies. This especially, is classified as Low-surface brightness spiral and the challenge according to the authors of the book The Arp Atlas of Peculiar Galxies is to detect the horsehoe-shaped ring with a mottled bar inside. I have tried, at least This photo has been taken with 15 exposures of 25 "with a combination TSoptics RC 8" + Risingcam IMX294 C non cooled + UVIR filter with the Risingtech capture software and treated with Startools

The result depends a lot on the sky conditions. If it is clear and with good seeing the 8 "of my TSOptics RC they get to capture a lot of detail. If I had a telescope of more diameter it would probably be better but they weigh too much and I can't handle them. I have to settle for this one. If the seeing is bad ....... nothing can fix it

As always a good selection very well resolved. Congratulations

This is a very interesting object, thanks for sharing

Good job, thanks for sharing. Some of the galaxies have a very difficult magnitude to capture and you have achieved it brilliantly

There is everything, sometimes there are clear and something can be done It is only possible with EEVA, if I did astrophoto it would have been a while since I would have released

NGC 2633 is ARP 80 from the catalog of Peculiar Galaxies of Arp. It is classified as "Spiral galaxy with a partner of high surface brightness in one arm". The challenge of observation is to detect these bright spots in the northern part of the halo. In the color photo it can be seen well but in the inverted one, below, it looks better.

Without further treatment of the original image, it would have been impossible to detect these very weak bifurcated branches of the galaxy. This makes this Forum a very special place to share this type of work. Thank you for commenting and viewing the images.

Arp's notes: Bifurcated arm does not start at end of bar Challenge: The split arm TSoptics RC8 + Risingcam IMX294C+ UVIR 15x25" + Startools

The IMX294 C chip is very sensitive and for this type of weak objects it works well. Thanks for the feedback Mike......I think I see UGC 957 in your photo !

ARP 157, NGC 520 and companion. Disturbed with interior absoption Challenge: Faint tails N and S and companion UGC 957 RC 203 + Risingcam IMX294 no cooled+ UVIR 15x25" stacked with Risingcam software+ Startools

Ritchey-Chretien 203 mm+ Risingcam IMX294 no cooled+ UVIR filter 15x 25 " , Risingtech capture soft, gain máx. all parameters by default Processed with Startools

Fantastic shots. How lucky to see the southern hemisphere sky. You will have some good memories of the trip to your home

NGC 5614 is a spiral galaxy in the constellation Bootes. It is the primary member of the Arp 178 triplet of interacting galaxies with NGC 5613 and NGC 5615 TSO RC 8" + Risingcam IMX294+ Risingsky software 10x25" + DFC+ Startools

I chose the EEVA because I like simple things, so I use alignment to a one star close to the object I'm going to visit and center this allign star with a 50/205 mm finder + an illuminated eyepiece of 26 mm. I also do not like the 6-bolt fastening system because the finder moves too easily. I've tried and rejected all laser finders because the red dot shines too much for most alignment stars

Actually these galaxies are very interesting. But at the moment I continue with my particular marathon of objects of equal or less than 12 magnitude and until I finish it I can not start a new one. If the Mediterranean sky behaves moderately well I hope to finish it this year. Between all we are going to obtain a quite complete collection of celestial objects...

IC 983+IC982/ARP 117 is a 11th magnitude Spiral Galaxy appearing in the constellation Bootes. It is 267 million light years from our solar system NGC 5490C /ARP 79 is a 15th magnitude Spiral Galaxy appearing in the constellation Bootes. It is 277 million light years from our solar system. TSO RC 8" + Risingcam IMX294+ Risingsky software 10x25" + DFC+ Startools

NGC 4775 is a 11th magnitude Spiral Galaxy appearing in the constellation Virgo. It is 77 million light years from our solar system. NGC 4786 is a 11th magnitude Elliptical Galaxy appearing in the constellation Virgo. It is 216 million light years from our solar system. PGC 43771 is a 15th magnitude Galaxy appearing in the constellation Virgo. It is 323 million light years from our solar system. PGC 1030299 is a 16th magnitude Galaxy appearing in the constellation Virgo. It is 219 million light years from our solar system. TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools

This subject is quite hidden and with very low participation, maybe if it were taken to the section of EEVA would have greater participation?

NGC 4665, also catalogued as NGC 4624 and NGC 4664, is a barred lenticular or spiral galaxy located in the constellation Virgo. It is located at a distance of circa 60 million light years from Earth, which, given its apparent dimensions, means that NGC 4665 is about 75,000 light years across. NGC 4665 lies 2 and 3/4 degrees east-south east of Delta Virginis and 50 arcminutes southwest of 35 Virginis. It can be viewed through a telescope at a 23 magnification, forming a pair with an 11th magnitude star 1.5 arcminutes southwest. It is part of the Herschel 400 Catalogue. It was discovered by William Herschel on February 23, 1784, however, he noted a location 10 arcminutes off the galaxy, where there is no object. It was observed by William Herschel again on April 30, 1786, noting the correct coordinates, and he misidentified it as another nebula. The fact that they are the same object was noted by John Louis Emil Dreyer in 1912 in the corrections of the New General Catalogue. It was also recorded independently on April 9, 1828 by John Herschel. NGC 4665 has a luminous, slightly elliptical bulge and a prominent bar with high surface brightness. The isophotes appear boxy at the end of the bar. The total bar length is estimated to be near 3 kpc.[9] The bar is slightly twisted, turning near 12 degrees along its axis. Two diffuse, faint arms emerge from each side of the bar and form a pseudoring. The surface brightness of the arms is higher near the bar. The southern arm appears a bit stronger. An arch feature is observed at the east side of the galaxy that could be a partial outer dusty ring. The outer isophotes are elliptical. The total mass of molecular gas is less than 107.3 M☉. NGC 4665 belongs to the NGC 4636 group. Other members of the group include NGC 4457, NGC 4586, NGC 4587, NGC 4600, NGC 4636, and NGC 4688. These galaxies, along with NGC 4753, Messier 61 and their groups form the southern boundary of the Virgo cluster. It can be difficult to determine which galaxies belong to which group, especially around the southern edge of the Virgo cluster where there is a confusion of galaxies at different distances. Wikipedia TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools

NGC 4526 is part of the Virgo cluster of galaxies. Ground-based observations of galaxies in this cluster have revealed that a quarter of these galaxies seem to have rapidly rotating discs of gas at their centres. The most spectacular of these is this galaxy, NGC 4526, whose spinning disc of gas, dust, and stars reaches out uniquely far from its heart, spanning some 7% of the galaxy's entire radius. TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools

The galaxy was discovered in 1784 by William Herschel, who described this region as having “a pretty bright star situated exactly north of the centre of an extended milky ray”. Of course the “milky ray” seen by Herschel is actually this spiral galaxy, but with his 17th century observing gear he could only tell that there a fuzzy, blurry structure below the much brighter star. TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools

NGC 4527 is an intermediate spiral galaxy similar to the Andromeda Galaxy and is located at a distance not well determined, but usually is considered to be an outlying member of the Virgo Cluster of galaxies, being placed within the subcluster known as S Cloud. Unlike the Andromeda Galaxy, NGC 4527 is also a starburst galaxy, with 2.5 billion solar masses of molecular hydrogen concentrated within its innermost regions. However said starburst is still weak and seems to be on its earliest phases. Wikipedia TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools

NGC 4939 has been characterised as a Seyfert galaxy, a galaxy category which features bright point-like nuclei. NGC 4939 is a type II Seyfert galaxy. Its X ray spectrum is more consistent with a Compton-thick cold reflection source, which means that the source is hidden behind dense material, mainly gas and dust, and the X-ray observed have been reflected, but a Compton-thin transmission model could not be ruled out. The equivalent width of the FeKα line is large, indicating too that it is a Compton-thick source. Further observations by Swift Observatory confirmed its Compton-thick nature. The source of activity in the active galactic nuclei is a supermassive black hole (SMBH) lying at the centre of the galaxy. The SMBH at the centre of NGC 4939 is accreting material with a rate of 0.077 M☉ per year. The black hole has been detected in hard X-rays, which are not absorbed by the Compton-thick column, by INTEGRAL. The galaxy has a large elliptical bulge and maybe a weak bar. It is a grand design spiral galaxy, with two tightly wrapped arms emanating from the bulge. The arms are thin, smooth and well defined and can be traced for nearly one and a half revolutions before fading. Two symmetric arm sections or arcs are observed in the central part of the galaxy. The galaxy is seen with an inclination of 56 degrees. The rotational speed of the galaxy is about 270 km/s. Wikipedia TSO RC 8" + Risingcam IMX294+ Risingsky software 10x20" + DFC+ Startools