Monthly archives: augusztus, 2018

Full Moon 2018-08-25

I imaged the ~full moon using the MC 102/1300 and the ASI 224 MC setup. Mosaicing is always error-prone, because it is hard to find the optimum between missing out parts and over-covering the surface with far too much overlaps. I almost left out tiny pieces of the surface, but the final outcome is ok. 

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

Moon, Libration, 2018-08-19-20-21

Moon, 2018-08-21

The images in this post are made with the ASI 224MC at the MC 102/1300 and the N 150/750 . With the wider field Newtonian it takes only 6 pieces to image the (~half) Moon. The processing and mosaicing is still a time hog, but at least its only half the time and pieces. Everyone who has ever done a lunar mosaic knows that there is a high risk and thus paranoia regarding coverage, and that we need to find a bearably balance between getting all the necessary pieces without too much overlap. Taking into account a minor drift of the field of viwe which is actually a good thing for the picture quality, recording and then mosaicing is in fact harder than it sounds.

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

The Moon – 2018-08-19

Using an ASI camera to image the moon feels lightyears ahead of the Scopium I used to use. It is so much better, versatile, capable – its pricey too, but hey. So I imaged the Moon, taking a total of 12 pieces for a mosaic, each piece being  a stack of around 500 frames, all the settings being kept. The stacks were made using AutoStakkert, then sharpening in Registax, using the same settings for all frames. Fortunately the atmosphere did not change much so it was fairly easy to put the pieces together in a fairly large resolution image. A large resolution version of the image below is here. An earlier attempt, from 2015, of mine is here.

facebooktwittergoogle_plusredditpinterestlinkedinmail

Veil Nebula 2015-2018

Veil Nebula

I have stacked all the data I have of the Veil Nebula at 200 mm. The first set of images come from 2015, when the camera was still unmodified, the mount was a somewhat problematic EQ3, not guided, and no filters. The 2018 set is with the same camera and lens, but the camera is modded, it also had an IDAS LPS D2 filter inserted and the mount is a HEQ5, guided. Both sets of images have been stacked and curves have been applied to them, before molding them together. Unfortunately the chromatic aberration, although elsewhere, is still present in the lens, regardless of my efforts to manually tune the lens. It is still not OK for astrophotography. Back in 2015 I was nowhere near a starheal and star reducing program — now I have my own.

C 33, NGC 6992, SH2 103 [SNR in Cyg] Veil nebula, East Veil Nebula, Keleti Fátyol-köd, Cygnus Loop, Sharpless 103, SH2-103 ø60′ [wiki] [simbad] 135mm, 200mm, 750mm

C 34, NGC 6960, SH2 103 [SNR in Cyg] Veil nebula, West Veil Nebula, Nyugati Fátyol-köd, Cygnus Loop, Sharpless 103, SH2-103 ø70′ [wiki] [simbad] 135mm, 200mm, 750mm

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

Some Mars images

Using the HEQ5+MC 102/1300+ASI 224MC, I obtained these Mars images.

Mars 2018-08-15 23:51:59

Mars 2018-08-17 23:51:41

 

facebooktwittergoogle_plusredditpinterestlinkedinmail

Some Saturn images

Saturn

Using the HEQ5+MC102/1300+ASI224MC setup, I’ve been recording Saturn. Some stack contain the best 5% of 10k frames. And I present a compositing process, showing Tethys, Dione, Rhea, Enceladus and maybe Mimas.
(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

NGC 6823 – 2018-08-08

NGC 6823

It appears that 17×6 minutes at ISO 1600 are barely a start for this nebulosity. I used my N 150/750, Baader MPCC Mark III, Canon 1100D mod, HEQ5, aided by the IDAS LPS D2 filter. I acquired the lights from Dângău Mare, Cluj county. I personally, call this nebula by an indecent word, much like the sword of Orion. NGC 6820 is the little, yellowish nebula hiding in front of the larger, mainly red complex.

NGC 6823, Col 405 [open cluster+nebula in Vul] 7.1m ø12′ [wiki] [simbad] 750mm, 800mm, 1000mm, 1200mm, 1500mm

NGC 6820, Col 404, SH2 86 [nebula in Vul] ø0.5′ [wiki] [simbad] [photo-planner]

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

Messier 11 – Wild Duck Cluster

Messier 11, the Wild Duck Cluster

I imaged the Messier 11 Wild Duck Cluster, using the N 150/750, Baader MPCC Mark III, IDAS LPS D2, Canon 1100D mod, HEQ5 setup. I recorded 16×3 minutes of light at ISO 1600, on the night of 2018-08-07-08, from Dângău Mare, Cluj county.

M 11, NGC 6705, Mel 213, Col 391 [open cluster in Sct] Wild Duck Cluster, Vadkacsa-halmaz, Roiul Raței Sălbatice 5.8m ø13′ [wiki] [simbad] 750mm, 800mm, 1000mm

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

Sharpless 112 – 2018-08-05

Sharpless 112

Using the good old setup, N 150/750, Baader MPCC Mark III, Canon 1100D mod with the IDAS LPS D2 filter, HEQ5, I took 15×4 minutes of the Sharpless 112 nebula in Cygnus. Would have taken more, had the Moon not risen. This nebula deserved more attention, it has a fairly high surface brightness, it’s not that small, being comparable to the Tulip nebula. But SH2-112’s neighborhood literally outshines it – just think about the North America Nebula, the Crescent Nebula, the Sadr Nebula, the Propeller, not to mention the Veil complex. I couldn’t even find a proper name for this object. I imaged from Dângău Mare, Cluj.

Sharpless 112, SH2-112 [H II nebula in Cyg] 8m ø15′ [simbad] 750mm, 800mm, 1000mm, 1200mm

(tovább…)

facebooktwittergoogle_plusredditpinterestlinkedinmail

Saturn – 2018-08-03-04

Saturn

From very bad to almost good seeing conditions, it was everything in just a few seconds. I used the N 150/750 on the HEQ5 with the ASI 224 MC camera.

Another processing approach

facebooktwittergoogle_plusredditpinterestlinkedinmail

Jól kalibrált monitoron mindegyik számnál elkülönülő árnyalat látszik. Ha mégsem látszanak, akkor a megjelenített képek színhiányosan rajzolódnak ki. A monitort valószínűleg kalibrálni kell.

You should see distinct shades for each number. If those shades are not clearly visible, the displayed pictures will lack accuracy. Your display most likely needs to be calibrated (brightness, gamma, contrast etc.).