Starship Asterisk*

NGC7023 Iris nebula LRGB
http://cdn.astrobin.com/images/thumbs/6 ... 0Jeong.jpg
Copylight ByoungJun Jeong

Telescope : Planewave CDK14 (D:356mm, fl:2563mm)
CCD : SBIG STX-16803
Mount : RainbowAstro RST-400
Filters : Astrodon true-balance gen2 50mm square LRGB
Exposure : each panel L 600s x 30(1x1bin), RGB 600s x 8(2x2bin) total 9h
Location : RainbowAstro Remote Observatory @ NewMexico (Dark Sky New Mexico)
Date : 23/Aug/2016, 29/Aug/2016, 23/Sep/2016, 1/Dec/2016

full resoultion
http://www.astrobin.com/full/276723/0/?real=&mod=

M81 Bode's galaxy
http://cdn.astrobin.com/images/thumbs/d ... 0Jeong.jpg
Copylight ByoungJun Jeong

Telescope : Planewave CDK14 (D:356mm, fl:2563mm)
CCD : SBIG STX-16803
Mount : RainbowAstro RST-400
Filters : Astrodon true-balance gen2 50mm square LRGB
Exposure : L 600s x 17(1x1bin), RGB 600s x 13(1x1bin) total 9h 20m
Location : RainbowAstro Remote Observatory @ NewMexico (Dark Sky New Mexico)
Date : 29/Oct/2016, 5/Nov/2016, 22/Nov/2016, 23/Nov/2016, 24/Nov/2016

full resoultion
http://www.astrobin.com/full/274259/B/?real=&mod=

The Lookout Tower of Galyatető
Copyright: György Soponyai

The geodetic tower of Galyatető was build in 1934 atop of Galya (part of Mátra mountain) 955 meters above the sea level. At the beginning of the age of GPS these kind of towers became obsolete.

The old and unused building was renovated in 2015 and today it is the highest lookout tower of Hungary.



Galyatető, Hungary
Canon EOS 5D Mark II + Samyang EF 24/1.4
2x15sec, ISO 3200, F2.0

IC1805, Melotte 15, WeBo 1

2 panels mosaic with Sw200/800, Mono Atik, Astronomik SHO filters.

NGC 6188: RGB 60 60 60 http://www.celestialobjects.net/NGC6188.html
NGC 1499: Ha 120 http://www.celestialobjects.net/NGC1499.html

Copyright: Patrick Winkler

On this apparition Mars has shown both sides of its poles (North&South) Its been a year from this image taken in Dec.21st 2015 and Dec.15th, 2016. But now small in diameter compare to opposition on May 22nd, 2016 top image at 18.36 arcsec in diameter.

Eastern Veil
http://www.astrowimp.com
Copyright: Tim Christensen
6 panel mosaic LRGB

Atlas V launch Ecostar19
http://www.astrowimp.com
Copyright: Tim Christensen

happy holidays to APOD and all his followers!!

moon and fireworks

IC434 Horsehead Nebula
http://cdn.astrobin.com/images/thumbs/c ... 0Jeong.jpg
Copylight ByoungJun Jeong

M45 Pleiades
http://cdn.astrobin.com/images/thumbs/2 ... 0Jeong.jpg
Copylight ByoungJun Jeong

North America, Pelican Nebula Narrowband

http://cdn.astrobin.com/images/thumbs/d ... 0Jeong.jpg
Copylight ByoungJun

Tiny comet vs tiny galaxy
Comet C/2015 V2 (Johnson) near NGC 5297 on 12.12.2016
Copyright: Velimir Popov, Emil Ivanov Irida Observatory More info and hi-res images on website

Comet C/2016U1 (NEOWISE) on 9.12.2016
Copyright: Velimir Popov, Emil Ivanov @ Irida Observatory More info and hi-res images on website

Startrails above Lake Lucerne in Switzerland

Cone, Christmas Tree, and Fox Fur
[Ha][OIII][RGB]

Larger Images and exposure info:
http://www.astrobin.com/76490/0/?image_list_page=2&nc=

Nick Pavelchak
Altamont, NY

Rosette Nebula in SHO
http://www.cyphris.com/sternbilder/mon/ngc2244.jpg
Copyright: Matthias Heyssler
http://www.cyphris.com/submit/ngc2244.jpg

Telescope: TEC 140 ED
CCD: FLI 16803 Microline
Exposure: Halpha 180min / SII 180 min / OIII 240 min

M31 in Halpha LRGB (18h)
http://www.cyphris.com/sternbilder/and/m31.jpg
Copyright: Matthias Heyssler
http://www.cyphris.com/submit/m31.jpg

Telescope: TEC 140 ED
CCD: FLI 16803 Microline
Exposure: Halpha 120min / L 600min / R 120min / G 120min / B 120min

At the Top of the Country
Copyright: György Soponyai

Hungary is located in Carpathian Basin surrounded by the Alps and the Carpathian Mountains. As a result of this geographical position, the country (and mainly the amateur astronomers living here) "suffer" every Fall and Winter from dense fog that stales for weeks blocking all lights from the skies.

On the night of 20th December 2016 only the topmost area of the Mátra mountain was high-enough to break the top of the fog layer so I decided to travel here for taking this photograph. It is a composite of 130 two-minute-long startrail pieces taken atop of lookout tower on Galya (a peak of Mátra). Here the elevation is 985 meters (955 + 30 of the tower) that is slightly lower than the height of Kékes (1014m), the highest mountain of Hungary. The Kékes is visible at the rightmost pole on this photo.



The geodetic tower of Galyatető was built in 1934 but at the beginning of the age of GPS these kind of towers became obsolete and uneless. The old building was renovated in 2015 and today it is the highest lookout tower of the country.


Photo details:
2016.12.20. Galyatető, Hungary
Canon EOS 5D Mark II + Sigma EF 8/4.0
134 x 120sec (4 foreground + 130 startrails), F 4.5, ISO 1600

NGC7635 the Bubble Nebula

NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel. The star BD+60°2522 is thought to have a mass of about 44 M☉.

With an 8 or 10-inch (250 mm) telescope, the nebula is visible as an extremely faint and large shell around the star.

The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision.[6] Using a 16 to 18-inch (460 mm) scope, one can see that the faint nebula is irregular, being elongated in the north south direction.

Source: Wikepedia

Detail Photo:

Location: Àger-Lleida-Spain
Dates: 06-07 Sep 2016 & 30-31 Oct 2016 & 2-6 Dec 2016
SQM: 21 - 21.4
Telescope: GSO RC14” Truss f8
Camera: Moravian G3-11000 classe 2
Focuser: Feather Touch 3” Kit boss II
Flattener: TSFlattener 2.5”
Filters: Astrodon LRGB Gen2 I-Series True-Balance
Exposures: L:22x600 sec bin1 R:G:B: 17:17:17 seg x 900 sec bin2
H-alpha: 34 x 900 sec bin1
Total Exposure: 20.6 h
Processing: Pixinsight & Photoshop CC 2015.5
Image copyright by: Lluís Romero Ventura
http://www.astrosirius.org/
https://www.flickr.com/photos/llromero/

Star forming region of the Rosette Nebula
Full image here: http://moonrocksastro.com/wp-content/up ... Master.jpg
Copyright: Paul C Swift

NGC457 - Owl Cluster
http://skymonsters.net/hr_immagine.php? ... NGC457.jpg
Copyright: Nicola Montecchiari

Christmas comet
Comet 45/P Honda - Mrkos - Pajdusakova on 22.12.2016
Copyright: Velimir Popov, Emil Ivanov Irida Observatory More info and hi-res images on website
Merry Christmas and a Happy New Year to all of you!
Velimir & Emil

Blessed are those who will own a H-alpha filter, as they can even image through the inferno flames.
Copyright: Sebastiano Recupero

Can we do any sort of imaging under a light-polluted sky? Today we can still use narrowband filters, but will it be the same when full-spectrum LEDs will spread?



Blessed are those who will own a H-alpha filter, as they can even image through the inferno flames. by Sebastiano Recupero, on Flickr.

M27 on HaOIII-rgb
http://outters.fr/wp/m27-hoo-rvb/

This is the second image after a difficult recovery of the Sirene observatory.

M27 appears to be an easy object to be imaged, think you, the treatment is quite complex because Ha and OIII layers overlap quite well in the center and it is difficult to find a good compromise. Include details from the center of the nebula in the images of the VLT and Hubble.

RGB channel retrieves natural colors of stars.

Copyright: Nicolas OUTTERS Link for full resolution : http://outters.fr/wp/wp-content/uploads ... -rvb13.jpg