Starship Asterisk*

Milky Way, Mars, Saturn
Copyrights: Jack Fusco The Flame Nebula - NGC 2024
Copyrights: Andrew Campbell Bolide and Star Party
Copyrights: Ciprian Dumitru Vintdevara SH2 86 Emision Nébula
Copyrights: Jose Ramon Mundo Salvador NGC 6888
Copyrights: Jose Ramon Mundo Salvador Saturn on 07-05-2016
Copyrights: John Chumack IC1396 the Elephant Trunk in Cepheus
Copyrights: John Buonomo Carina Nebula
Copyrights: Rodrigo Andolfato Sh2-65 Emission Nebula
Copyrights: Ron Brecher Milky Way - The Core
Copyrights: Will Vrbasso Aurora Australis and Milky Way panorama
Copyrights: Robert Schwarz Man at night
Copyrights: Payam Safaei Startrail above old house
Copyrights: Payam Safaei M20
Copyrights: Jim Gibbs Makarian's chain
Copyrights: Jim Gibbs Messier 35
Copyrights: Jim Gibbs Eta Carina Nebula
Copyrights: Jim Gibbs Messier 31
Copyrights: Jim Gibbs

Elephant Trunk
Copyrights: Josh Borup Milky Way
Copyrights: Alessandro Volpi Mars and NGC 5897
Copyrights: Jerry Armstrong NLC in starry sky park
Copyrights: Tamas Ladanyi Ancient supernovae were close enough to buffet biology on Earth with radiation dose, researcher says
Image credits: NASA, ESA, Hubble Heritage (STScI/AURA)
An article: http://news.ku.edu/2016/07/06/research- ... ation-dose http://asterisk.apod.com/viewtopic.php?t=36148

Dawn Maps Ceres Craters Where Ice Can Accumulate
Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
An article: http://www.jpl.nasa.gov/news/news.php?release=2016-180 http://asterisk.apod.com/viewtopic.php?p=259463#p259463

Sh2-97
Copyrights: Ron Brecher Conjunction
Copyrights: Mohamed Laaifat Milky Way
Copyrights: Derek Culver The Magic Wand
Copyrights: Israel Monterroso Villatoro Orbital debris
Copyrights: Gernot Meiser Southern Star Trails
Copyrights: Ardash Muradian A Beautiful Moonset
Copyrights: Rafik Fella Andromeda Galaxy
Copyrights: Rodrigo Andolfato Lightnings in Hong Kong
Copyrights: Pat Shek Condensation Trail Projetion
Copyrights: Christian Rausch Milky Way over Castroviejo, near Soria (Spain)
Copyrights: Alejandro Sanz The lightning that was trying to catch airplane
Copyrights: Kevin Lui

Size of Jupiter magnetosphere vs Moon
Copyrights: Thierry Lombry Star trails
Copyrights: Leslie Caron Summer Milky Way over Courthouse Butte Arizona
Copyrights: Robert Mueller A Colourful Lagoon
Copyrights: Louie Atalasidis The Colors of Rho Ophicuhi
Copyrights: Will Vrbasso M24, IC 1284 and NGC 6589-90 from the Australian Outback
Copyrights: Ivan Bok NGC6726-7
Copyrights: Grant Bisset M101
Copyrights: Jérémie Bottollier Curtet Summer Milky Way Mosaic
Copyrights: Martin Campbell The sea of clouds above the Caldera de Taburiente in La Palma, Spain
Copyrights: Javier Martínez Morán Milky Way from mountains of Coahuila, Mexico
Copyrights: Cesar Cantu Quiroga Full moonset at dawn over Redondo Beach pier CA
Copyrights: Patrick Harkins Surroundings of LDN 588
Copyrights: Rafael Rodríguez Milk Way galaxy, zodiacal light and ISS trail
Copyrights: L. Starwisper Bernes 149 Reflection Nebula in Scorpius
Copyrights: Don Goldman
Full size: http://astrodonimaging.com/gallery/bernes-149/ Supernova Remnant RCW 86 in Circinus
Copyrights: Don Goldman
Full size: http://astrodonimaging.com/gallery/rcw- ... a-remnant/ NGC 1499 California Nebula
Copyrights: Doug Hubbell

Copyrights: Raul Villaverde Fraile
IC 5146_2016 by Raul Villaverde, en Flickr

Sandgirl wrote:Comet PanSTARRS above the Milky Way
Copyrights: José J. Chambó
2013X1_160630_1200_small.jpg

Does anybody know what globular cluster it is?

Starfield by Mariano de Castro, en Flickr

Infrared Rho Ophiuchi Complex
NASA / JPL-Caltech / UCLA / Judy Schmidt

(further information is available after clicking the first thumbnail)

Propeller Nebula
by Reinhold Wittich
Details: http://www.wittich.com/?p=2448

M24 Sagittarius star cloud and surroundings


Sagittarius star cloud and surroundings by Christian vd Berge, on Flickr

MBM 54 and NGC 7497
http://www.distant-lights.at/mbm54-2015_10_11.htm
Copyright: Thomas Henne

geckzilla wrote:Infrared Rho Ophiuchi Complex
NASA / JPL-Caltech / UCLA / Judy Schmidt

(further information is available after clicking the first thumbnail)

Aww man this looks wonderful, this region seems to be colourful no matter what the wavelength! How do you find infrared processing compared to optical? Have you ever done the Zeta Ophiuchi region?

Finally one more question, what is the mystical symbol in your avatar?

starsurfer wrote:Aww man this looks wonderful, this region seems to be colourful no matter what the wavelength! How do you find infrared processing compared to optical? Have you ever done the Zeta Ophiuchi region?

I find the process to be largely the same. The larger wavelengths seem to spread out a bit differently than the smaller wavelengths, so point sources seem a bit fuzzier, even though they aren't... how to put it? The point spread function is, uh, bigger. The PSF for WISE seems kind of soft. It would be tempting for a lot of people to slap a sharpening filter on them. And I still yearn for more coverage of the electromagnetic spectrum despite having four bands to work with. The jump between W2 and W3 is far too large. I would like a third band close to or between W3 and W4.

starsurfer wrote:Finally one more question, what is the mystical symbol in your avatar?

A little thing I created using a tool at myoats.com.

Night Sky among the Jeffery Pines by Transient Astronomers, on Flickr

Image Credit and Copyright Tom Masterson

Noctilucent clouds in Estonia 14.07.2016
Copyright: Märt Varatu
Website: https://500px.com/maart Night clouds or noctilucent clouds are tenuous cloud-like phenomena that are the "ragged edge" of a much brighter and pervasive polar cloud layer called polar mesospheric clouds in the upper atmosphere, visible in a deep twilight. They are made of ice crystals. Noctilucent roughly means night shining in Latin. They are most commonly observed in the summer months at latitudes between 50° and 70° north and south of the equator. They can be observed only when the Sun is below the horizon.
They are the highest clouds in Earth's atmosphere, located in the mesosphere at altitudes of around 76 to 85 kilometres (47 to 53 mi). They are normally too faint to be seen, and are visible only when illuminated by sunlight from below the horizon while the lower layers of the atmosphere are in the Earth's shadow. Noctilucent clouds are not fully understood and are a recently discovered meteorological phenomenon; there is no record of their observation before 1885.

Galactic Center from San Vicente Ferrer, Antioquia (Colombia).

Canon 6D - Sigma 200mm f/2.8 - ISO 12.800 and 5''

http://www.juanframirez.co
Copyright: Juan F. Ramírez Mejía

The Trifid Nebula in Sagittarius
http://danks.netfirms.com/astronomy.htm
Copyright: Terry Danks
http://danks.netfirms.com/M20HaRGB.jpg

The Cave Nebula in Cepheus


SH2-155 Cave Nebula (color reprocessed) by Andre van der Hoeven, on Flickr

The Eagle and Swan, M16-M17
http://www.buckeyestargazer.net
Copyright: Joel Short
This large image has been severely reduced to accommodate file size limit of 400k

geckzilla wrote:

starsurfer wrote:Aww man this looks wonderful, this region seems to be colourful no matter what the wavelength! How do you find infrared processing compared to optical? Have you ever done the Zeta Ophiuchi region?

I find the process to be largely the same. The larger wavelengths seem to spread out a bit differently than the smaller wavelengths, so point sources seem a bit fuzzier, even though they aren't... how to put it? The point spread function is, uh, bigger. The PSF for WISE seems kind of soft. It would be tempting for a lot of people to slap a sharpening filter on them. And I still yearn for more coverage of the electromagnetic spectrum despite having four bands to work with. The jump between W2 and W3 is far too large. I would like a third band close to or between W3 and W4.

starsurfer wrote:Finally one more question, what is the mystical symbol in your avatar?

A little thing I created using a tool at myoats.com.

Thanks for the concise reply, it's nice to get an insight into your creative process.

venus (left center) and mercury (between cables, near the electric pole) at sunset

VDB 123 - Reflection Nebula
Copyright: Sergio Kaminsky

At my website: http://www.myastroscience.com/#!vdb123/w6p59

M16 in Ha

Larger image and info available here:
http://www.astrobin.com/255825/0/

Nick Pavelchak
Altamont, NY

Cosmic Emotions

As the moon reigned over her chariot, the horizon was red, fell in love with the nature and the stars shone even more!
Mars and Saturn dragged the dance, in Libra, in Ophiuchus and Scorpio and our Galaxy as a delusion shining in the firmament ...

Perhaps the most fabulous thing was to swim under the light of our galaxy and around you, in your touch, hundreds of blue Fluorescent Plankton lights illuminate ... how majestic is nature!

Halikounas Beach, Corfu
Moon 7.29 days
July 12, 2016

Canon eos 40D Full spectra, Samyung 14mm, f/2.8, iso800, 5X4X30sec, , DSS, Autopanogiga, PS

NGC7822 (25,5 Hr)
Copyright: Dide van den Heuvel
https://www.flickr.com/photos/93801898@N03/28063777330/



http://www.didevandenheuvel.eu

URL of website, https://flic.kr/p/JazmwZ
Copyright: Christian García

"JULY NIGHT"