Comet 45P Honda-Mrkos-Pajdusakova (3a)

Eventually I managed to stack frames by the comet (see link).
Two stacking modes were used: "average" (right image) and "sigma-clipping" to reduce stars brightness. Comet's tail is clearly seen.
Size of each image: 3x3 degrees.
2015-02-25; 23:04-23:55(UT+2)

An animation of a proper motion of the comet.
2015-02-25; 23:07-23:52(UT+2)

Comet 45P Honda-Mrkos-Pajdusakova (3)

Last night: 2017-02-25 23:05-23:55(UT+2)

Kyiv, Osokorky

Setup: Canon EOS 600D with Jupiter 37А lens [135mm] @f/5 on EQ-5 motorized mount.
42x60s frames.

Processing: DSS+FITStacker+RawTherapee.

Because the comet was too dim, I could not make alignment by the comet so alignment by stars was used. This caused distortion of the comet visible nucleus.

Crop 3x3 degrees

Venus

Venus on 19th of February 2017: Canon EOS 600D through SW 15075 OTAW + SW EQ5 motorized.

A visible angular diameter of the planet now is ~41 arcseconds, it is approximately 2% of visible Moon diameter.

Processing: PIPP+Autostakkert+Registax+GIMP; 25% of 1951 frames (movie taken at ISO400; 1/250s exposure)

Canon EOS 600D through SkyWatcher 15075 + Barlow 5x (Delta Optical)

The same picture with depicted planet's limb:

Flame Nebula and the Great Orion Nebula(2)

Flame Nebula: a part of Orion Molecular Cloud: to the left of Zeta Orionis (a blue supergiant star). Numerous stars inside the nebula cause its glow; interstellar dust forms dark filaments.
A deep scarlet canvas of hydrogen nebula lies beneath Zeta Orionis; a dark spot, which resembles (in better resolution) a head of a horse is (obviously) called Horsehead Nebula.

Setup: Canon EOS 600D with Jupiter 37A(135mm focal length f/3.5 lens) on EQ-5 (motorized, unguided). ISO=400; f/5.
It is the severely cropped result of stacking of 45 frames (120s each taken during three nights) calibrated and aligned in IRIS. Stacking of frames was done in FITStacker using a sigma-clipping algorithm. Post-processing: RawTherapee, NoiseWare, FITSwork.

January 2017
Kyiv (Osokorky district)

The Great Orion Nebula: a better version of the image posted before [45x120s]

Both nebulas in one image (three bright stars are Orion's belt) [45x120s]

Vesta in Gemini #2

Asteroid Vesta: visual movement in front of stars

Vesta in Gemini

Asteroid Vesta: 2017-21-01 ~23:18-23:28 (UT+2)
Canon EOS 600D + Jupiter 37A @f/5 on EQ5
Exp: 10x30s; ISO=800
Crop 4x4 deg
Kyiv, Osokorky

Orion Nebula

An evening of 19th of January 2017 was clear, so I caught the first deep sky image in the new year!

I brought my motorized EQ5 to my backyard, put Canon EOS 600D (with Jupiter 37A lens) on it and captured a series of frames up to full discharge of Canon's battery (an outside temperature was -6*C approximately). I managed to capture 27 lights (about half of them with the best quality I used for image creation).

The target was the Great Orion Nebula (M42). This is my second attempt to catch the Nebula.

Calibration and alignment of 13x120s light frames were made using IRIS (7 darks, 7 offsets, and 7 flats were used for calibration). Calibrated frames were stacked using FITStacker. Gamma-correction and initial color balance were done in FITStacker too. Then the resulted png image was post-processed in RawTherapee (additional level and color balance); image noise was reduced in NeatImage. The resulted jpeg image was slightly fitted by FSViewer. The image is cropped (see the second one for full version).

Full (uncropped) image.
The same set of frames processed in DeepSkyStacker (calibration, alignment, stacking). Then the stacked result was treated by FITStacker (gamma-correction, initial color balance). Post-processing was done in RawTherapee (additional level and color balance) and NeatImage (noise reduction).

Annotated version of images (by nova.astrometry.net)