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Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 9:38 am
by Adrien Mauduit
ALPINE COSMOS

Credits: Adrien Mauduit

The Alps are the perfect place to gaze at the stars at this season: it offers snow to light up your landscapes while it is still not too cold! I photograph this scene while I was at the Emission Dam about a month ago, where fresh snow had covered just the mountain tops, but at 2100m of altitude the temperature was 13°C! I love how the snow reflects the light from Chamonix nearby (west) and the light of the winter milky way and Sirus, which unlike what people tend to think, is way more powerful and luminous than the whole core of the milky way itself. Sirius itself is like a mini full moon (it's just slightly bigger and hotter) that is bright enough to brighten the landscape! Although not visible with the naked eye but the camera, the Orion nebula region forms a great color contrast, bringing the missing magentas and reds! Eventually the green and yellow airglow also somehow complement the color spectrum!

Canon 6D Baader modded + Sigma 14mm f/1.8 Art, 3 x 15'' untracked at ISO 6400, f/2.8

More at: www.adphotography-online.com
Fb: https://www.facebook.com/AdrienMauduitPhotography/

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 9:44 am
by Adrien Mauduit
Fall milky way, zodiacal lights & Saturn over El Roque, La Palma

Credits: Adrien Mauduit

There is one good and obvious reason why the Observatory has been built at the very top of this dormant volcano: it is situated at 2400m of altitude and benefits from year-round dark and pure skies. Although there is still some light pollution from the El Paso area, and because it also receives humid air from the sea and also dust from the Sahara nearby, the air is of an unprecedented quality and it's very dark up there. You cannot see a thing and even the night sky is illuminating the foreground, which rarely happen because of the expansion of mankind and light pollution. The Observatory is comprised of several telescopes and parabolas including the MAGIC mirrors and the great telescope (GTC: Gran Telescopio Canarias). Although the area is off limits at night, the area is accessible if you are willing to hike around the perimeter (200 m high). I took this pristine shot of the Fall milky way and its disappearing core, which was greeted by a brilliant display of zodiacal light (sunlit interplanetary dust) and Saturn setting as well ('yellow star'). I have rarely taken a shot this 'easy', meaning without that much post-process to reduce noise and increase contrasts, because the air is so pure and the airglow wasn't too strong that night.
Canon 6D modded + Sigma 50mm f/1.4 Art, Vixen Polarie, Pure Night filter, 6 x 15'' tracked, ISO 6400, f/2.8
La Palma, Observatorio del Roque de Los Muchachos, November 17th 2017

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 11:11 am
by xuranus
NGC891
NGC891_rotate_crop_2000px_q10_rs800.jpg
Copylight ByoungJun Jeong

full resolution
https://www.astrobin.com/full/324107/0/

M 78 Complex Nebula

Posted: Thu Nov 30, 2017 11:17 am
by Iaffaldano Giuseppe Carmine

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 4:47 pm
by joelshort
Ann wrote:
joelshort wrote:Barnard 35 with a Photobomb by Betelgeuse
Barnard 35 is a unique dark nebula that has a distinct red tint along with the more typical dusty brown. Despite the fact that Betelgeuse was well off the frame, he just couldn't resist the photobomb.
http://www.buckeyestargazer.net
Copyright: Joel Short
Love that picture, Joel!

The orange flare at lower left is certainly caused by light from red supergiant Betelgeuse. The red rim of the nebula (at center-right) is almost certainly an ionization front, which would be caused by relatively nearby hot blue giant Lambda Orionis, which is surrounded by a huge but faint emission nebula. Note that Orion is "upside down" in the picture I linked to.

Ann
Thanks Ann! And thanks for the information.

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 5:34 pm
by moonrocks
Starry Night Sky

URL of website, http://moonrocksastro.com/wp-content/up ... -Sky-1.jpg
Copyright: Paul C. Swift



ImageStarry Night Sky by Paul C. Swift, on Flickr

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 6:45 pm
by paddygilliland

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 7:46 pm
by Sandgirl
NGC7023
Copyrights: Francesco Landi
Iris-NGC7023_LT_small.jpg
M8 Lagoon Nebula
Copyrights: Ali Alhawas
M8 PNG with name_jpg_small.jpg
NGC7000
Copyrights: Robert Habolin
NGC7000 4 panel mosaic VER2_small.jpg
Summer Milky Way
Copyrights: Giovanni Bonini
THE SUMMER MILKY WAY GOES DOWN_small.jpg
Andromeda
Copyrights: Dani Caxete
unnamed.jpg
Abell 85 / CTB1
Copyrights: Jens Zippel
abell85-HaOIIIRGB-medium-5_small.jpg
Pacman Nebula
Copyrights: Paul Swift
Pacman Nebula APOD_small.jpg
IC434
Copyrights: Stephan Nicolas
IC434 HA-RGB-Signature _jpg.jpg
Sharpless 173
Copyrights: Brian Peterson
Sh-173-PS-3_small.jpg
IC 1340 and NGC 6995
Copyrights: Danny L. Russell
IC-1340_Narrowband_27Hr_Square_Crop_small.jpg
Startrails over Keck
Copyrights: Joe Llama
unnamed (1).jpg
The Moon and Mercury
Copyrights: Stephen Mudge
Moon Mercury_Stephen Mudge.JPG
Bright irridium flare in Cassiopea
Copyrights: Dean Rowe
Iridium_Flare_Cassiopeia_small.jpg
Mare Humorum
Copyrights: Oscar Cabrerizo Coma
MOON-Mare_Humorum-OscarCabrerizo_small.jpg
Glory
Copyrights: Todd Hallam
image1.jpeg
Sh2-140
Copyrights: Phil Keyser
Sh2-140-Final_jpg_small.jpg
NGC 7635 - Bubble Nebula
Copyrights: Jeff Johnson
NGC7635_3Sep17_75_web.jpg
The Cygnus Wall (NGC 7000)
Copyrights: Andrew Chatman
unnamed (2).jpg
M45
Copyrights: Damien Cannane
M45 Open Cluster 140 x 180s ST3e Web_jpg.jpg
Small Magellanic Cloud
Copyrights: Josep Drudis
unnamed (3).jpg
IC 2948, the Running Chicken Nebula
Copyrights: Josep Drudis
unnamed (4).jpg
NGC 6357, the Lobster Nebula
Copyrights: Josep Drudis
unnamed (5).jpg
NGC 6357 and NGC 6334 in the Scorpius area
Copyrights: Josep Drudis
unnamed (6).jpg
Sun dog
Copyrights: Marnie Deschenes
image1 (1)_small.jpg
Cats Paw nebula
Copyrights: Maicon Germiniani
unnamed (7).jpg

Re: Submissions: 2017 November

Posted: Thu Nov 30, 2017 8:12 pm
by Sandgirl
Vela SNR
Copyrights: John Gleason
eta tricolor_small.jpg
Leonid meteorit over the West Tatras in the Slovakia
Copyrights: Peter Leginus
leonid_over_the_west_tatras_slovakia_small.jpg
The old tree and a Northern Light Corona
Copyrights: Göran Strand
GS_20171107_Aurora_4156_Pan.jpg
M42
Copyrights: G.Chatzifrantzis
Image10 4_small.jpg
M42 - Orion Nebula
Copyrights: Francesco Battistella
M42 FINAL JPEG_small.jpg
Rainbow
Copyrights: Emil Pellett
rainbow_small.jpg
M31
Copyrights: Hector Bada
38390287636_aaee81b4dd_k_small.jpg
NGC 1333
Copyrights: David Attié, Didier Rediger-Lizlov and Stefan Shramm
NGC 1333_DDS_observatory.jpg
Waning crescent moon, Venus and Jupiter
Copyrights: João Pedro Bessa
IMG_6644_small.jpg
Leonid and Trio
Copyrights: Dani Caxete
unnamed (8).jpg
Watercolor sunrise
Copyrights: Dani Caxete
unnamed (9).jpg
IC 443 (Jellyfish Nebula or Sharpless 248)
Copyrights: Dirk Cornelis
jelly4pjpg-001_small.jpg
Large Magellanic Cloud
Copyrights: Francesco Badalotti
LARGE MAGELLANIC CLOUD - TO APOD - 400 KB.jpg
Granules on the photosphere of the Sun
Copyrights: Patrik Formánek
2017-06-03-1238_3-L__SSSM_2.jpg
Dust in M33
Copyrights: Raul Villaverde Fraile
IFN en M33_small.jpg
1% Moon
Copyrights: Stan Honda
Moon-planets2-17nov-SHonda_small.jpg
Planets
Copyrights: Stan Honda
Moon-planets-17nov-SHonda_small.jpg
NGC6888
Copyrights: Mikael Afzelius
TIbmIwYOYyO-_1824x0_xQcCxfhw_jpg.jpg
NGC1491 in Perseus
Copyrights: Nathanaël Berger
ngc7814-lrvb-1-1_small.jpg
17 November 2017 Moon, Venus and Jupiter conjunction
Copyrights: Dario Giannobile
Moon Jupiter and Venus Conjunction Behind The Plemmirio Lighthouse bis_small.jpg
Planetary air traffic
Copyrights: Chris Kotsiopoulos
20171113PlanesVenusJupiter_small.jpg

Re: Submissions: 2017 November

Posted: Fri Dec 01, 2017 11:09 am
by nvc123
HorseHead Nebula, a HaL-RGB picture
http://www.astro-hp.dk
Copyright: Niels V. Christensen
Click to view full size image