Starship Asterisk*

Rosette Nebula (NGC2237), NGC2244 - HaRGB
http://astrofotky.cz/~Konihlav
Copyright: Pavel Pech

NGC 6820

NGC 6820 by Brendan Kinch, on Flickr

M42 - The Scorpius Constellation
Copyright: Hermann von Eiff

Aprile 2018
Località: San Romualdo - Ravenna
LX200 12" con riduttore/correttore Starizona F/7.1
Autoguida con ASI120mm su ETX105
CCD QSI 540ws raffreddato -20 - Filtri Baader CCD
RGB: R 36x5min, G 49x5min, B 32x5min.
Acquisizione: MaximDL5 - Correzione cosmetica con Dark, Bias e Flat.
Elaborazione: MaximDL5, Astroart6, Startools1.4, AstraImage4, Paint Shop ProX9 e Topaz plug-in

Cristina Cellini

RUNNING CHICKEN NEBULA
Image realized during several days by lack of a clear sky here in Sao Paulo.

details:
https://www.astrobin.com/full/350457/0/

Equipments:
Esprit 150mm triplet
Qhy 16200 30x Hallpha- SII 0 OIII - 600seg
Photo taken at my property between May 20-31, 2018
Sao Paulo - SP - Brazil

Copyright: Fernando Oliveira de Menezes

Hermann von Eiff wrote: ↑Wed Jun 13, 2018 5:48 pm M42 - The Scorpius Constellation
Copyright: Hermann von Eiff
Scorpius_constellation_HvE_June_13_2018.jpg
Skorpius constellation_annotated_HvE_June_13_2018.jpg

Wow, that's a magnificent image (or two versions of the same image, one with annotations)! I wonder how many hours went into producing it?

Ann

cfm2004 wrote: ↑Wed Jun 13, 2018 8:24 pm Aprile 2018
Località: San Romualdo - Ravenna
LX200 12" con riduttore/correttore Starizona F/7.1
Autoguida con ASI120mm su ETX105
CCD QSI 540ws raffreddato -20 - Filtri Baader CCD
RGB: R 36x5min, G 49x5min, B 32x5min.
Acquisizione: MaximDL5 - Correzione cosmetica con Dark, Bias e Flat.
Elaborazione: MaximDL5, Astroart6, Startools1.4, AstraImage4, Paint Shop ProX9 e Topaz plug-in

Cristina Cellini

Thank you for that picture, Cristina! NGC 4490 and NGC 4485 are two of my favorite galaxies, because they are so blue. I very much appreciate that your picture underscores how blue they really are (although you also show us that the center of NGC 4490 is in fact yellow, as expected).

Thanks again!

Ann

The blue horsehead nebula
http://www.bastienfoucher.com
Copyright: Bastien Foucher
Mosaic of 6 pictures, 27 hours of exposure in total. A higher resolution version of the image is available here :
https://photos.smugmug.com/Astrophotogr ... ic4592.jpg

(other even higher resolution images are available on request)

Lit by the bright star NU Scorpii, this large but faint reflection nebula in Scorpius is imaged much less often than its famous cosmic equine cousin in Orion. This field of view is 4 deg X 4 deg.

Larger image here: https://www.flickr.com/photos/strongman ... ed-public/
https://c2.staticflickr.com/2/1722/4274 ... 7a83_c.jpg
Copyright: Michael Sidonio http://www.pbase.com/strongmanmike2002

Great American Eclipse
for 4th of July
Not a big flag waver, my main concern setting up for the eclipse the night before was that this pole not block my telescopic view.
When I went to take my widefield shot, well there it was, serendipity.
Copyright: William Warden full size:
http://whwastro.homestead.com/files/big ... full-s.jpg
purple prose (and image details):
http://astrowhw.blogspot.com/2017/12/20 ... iance.html

probably should have posted beforehand for flag day

Credits: Xisco A.P.
Copyrights: David Forteza
https://www.flickr.com/photos/david_astrofotografia/

Rho Ophiuchi datos by XAP by David Forteza, en Flickr

Copyrights: David Forteza
https://www.flickr.com/photos/david_astrofotografia/

Cazando a Venus by David Forteza, en Flickr

Mosaico by David Forteza, en Flickr

Sin título by David Forteza, en Flickr

Força Universal by David Forteza, en Flickr

Alone in the Dark by David Forteza, en Flickr

Milky Way by David Forteza, en Flickr

Via Lactea Norteña by David Forteza, en Flickr

Halo Lunar by David Forteza, en Flickr

Northern lights Iceland by David Forteza, en Flickr

Reprocess Air-Glow by David Forteza, en Flickr

Panoramica Nido de Aguilas by David Forteza, en Flickr

Reprocesado al canto by David Forteza, en Flickr

Bolido junto Via Lactea desde la Alcarria by David Forteza, en Flickr

El Cielo Café by David Forteza, en Flickr

Copyrights: Raul Villaverde, Domingo Pestana, Nicolas Romo
velos by Raul Villaverde, en Flickr

https://www.masterdarks.com
Copyright: SC Observatory Team: Mike Selby, Andy Chatman, Stefan Schmidt
Click to view full size image
Full size image: https://www.flickr.com/photos/macnmotion/27940608777

Full image details on our website: https://www.masterdarks.com/ngc-5426-an ... 7-arp-271/

NGC 5426 and NGC 5427 (ARP 271) is a rarely photographed interacting galaxy pair in the constellation Virgo. Approximately 90 million light years from Earth, this galaxy pair spans 130,000 light years across.

Because these two galaxies are similar in size, it is unlikely that one will be devoured by the other. More likely these galaxies will continue to interact for tens of millions of years, creating new stars along the way.

This is just under 10 hours of LRGB data taken with our Officina Stellare RiLA600mm f/5 telescope and an FLI MLx694 camera, from Samphran, Thailand (one hour west of Bangkok).

Deep into the Galaxy

Milkyway galaxy above Lagoon Korission, Natura 2.000, Corfu
Sony a7sii, ef 85 1.2 Lii, 85mm, f/2, iso1600, 30X30sec, eq6, trace & stacked

Veil Nebula East
Ha/OIII
https://www.astrobin.com/267625/?nc=user

Nick Pavelchak
Altamont, NY

Bubble Nebula NGC7635
Ha/OIII
https://www.astrobin.com/306853/?nc=user

Nick Pavelchak
Altamont, NY

Fetus Nebula NCC 7008
Ha/OIII
https://www.astrobin.com/259976/?nc=user

Nick Pavelchak
Altamont, NY

Pillars of Creation
Ha/OIII/RGB
https://www.astrobin.com/305603/?nc=user

Nick Pavelchak
Altamont, NY

Anyone see the Moon and Venus conjunction tonight? I grabbed a quick shot across from my apartment. Look towards the west shortly after sunset Saturday. Saturday night the moon will be a little higher in the sky compared to Friday.

Moon and Venus Conjunction from Friday June 15th
www.mdieterichphoto.com
Copyright: Matt Dieterich https://c2.staticflickr.com/2/1808/4278 ... 6785_o.jpg

Moon and Venus are conjuctions.

16.6.2018, Czech republic, mountains Jeseniky.

The Moon and the Venus on a cloudy night. Two image panorama.

Date: 06.16.2018, 09:33 AM (UTC+01:00)
Location: Tiszalök, Hungary
Camera: Nikon D5300
Lens: Nikkor AI-S 300mm f/4.5
Camera settings: 300mm, f/11, 0.5 sec, ISO 800

M13 Hercules Globular Cluster. RGB + Luminance. 1.33"/pixel image scale.

Astrodon I series Red filter, 22 x 2 minutes, 1x1. 6/12/2018.
Astrodon I series Green filter, 22 x 2 minutes, 1x1. 6/12/2018.
Astrodon I series Blue filter, 22 x 2 minutes, 1x1. 6/12/2018.
Astrodon I series Lum filter, 66 x 2 minutes, 1x1. 6/12/2018.

TEC 140 APO F/5 with A-P Quad TCC, Astro-Physics A-P1100GTO GEM with absolute encoders. QSI660wsg. OAG and Ultrastar autoguider, Optec Handy Stepper Motor focuser.

Captured and automated with SGP. Calibration and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 2000, Min Move: 0.38, Calibration Steps: 300msec, Auto/Resist Switching, 2 sec guiding exposure.

Tadpole Galaxy, KG Observatory.

This was a particularly challenging object given its small size and relatively low brightness. With the marine layer holding down the San Diego city lights, I was able to shoot most of this in 21.5 to 21.8 SQM skies. Seeing was under 2" FWHM measured on 5 min subs. I recently improved collimation and tracking, so I may try a new luminance layer in the near future.

Imaging telescope or lens:Planewave CDK24
Imaging camera:FLI Proline 16803
Mount:Planewave L600
Guiding camera:Lodestar X2
Focal reducer:None
Software:Planewave PWI4, Planewave PWI3, PixInsight 1.8, Maxim DL6, PHD Guiding 2, Neat Image V7, Photoshop CS3, Sequence Generator Pro
Filters:Astrodon 50mm R, Astrodon 50mm B, Astrodon 50 mm G, Astrodon 50mm L
Accessories:FLI CFW-5-7, Astrodon Monster MOAG, Hedrick Focuser, Planewave Delta-T, Planewave EFA
Resolution: 1120x1006
Dates: June 5, 2018, June 12, 2018, June 13, 2018, June 14, 2018
Frames:
Astrodon 50 mm G: 20x300" -20C bin 1x1
Astrodon 50mm B: 30x300" -20C bin 1x1
Astrodon 50mm L: 113x300" -20C bin 1x1
Astrodon 50mm R: 26x300" -20C bin 1x1

Integration: 15.8 hours
Darks: ~20
Flats: ~80
Flat darks: ~80
Bias: ~20
Avg. Moon age: 19.73 days
Avg. Moon phase: 16.41%
Mean SQM: 21.70
Astrometry.net job: 2105982
RA center: 241.535 degrees
DEC center: 55.430 degrees
Pixel scale: 0.468 arcsec/pixel
Orientation: 159.935 degrees
Field radius: 0.098 degrees
Locations: KG Observatory, Julian, CA, United States
Data source: Backyard

The Fighting Dragons of Ara

Two dragons fighting over an egg on the constellation of Ara.

80mm f/7 triplet APO
ASI1600MM-C
Ha 33x300s
OIII 30x300s

Copyright: Rafael Compassi

Ara fighting dragons by Rafael Compassi, no Flickr

We rarely have the luxury of observing the planet Mars as a "morning star", but at dawn yesterday at Laguna Hanson in Baja California Mexico there was present delighting the panorama after a spectacularly clear night and taken advantage of by at least 30 Astrophotographers of the Night Panorama technique.
http://www.astrocolorsllc.com/picture.p ... category/9

I also include this other image of the Hanson Lagoon, discovered at the beginning of the last century by the Norwegian Jacob Hanson, where he also settled, until he was killed to try to steal it, although no one ever found the hanson fortune to date.
http://www.astrocolorsllc.com/picture.p ... category/9