Starship Asterisk*

Tom Glenn wrote: ↑Mon Nov 23, 2020 10:07 am ISS with Crew Dragon Resilience transits Jupiter

ISS with Crew Dragon Resilience transits Jupiter by Tom Glenn, on Flickr

This composite image shows 39 consecutive frames that were captured during a transit of the International Space Station (with docked Crew Dragon "Resilience") across Jupiter. The event was captured from north of Lake Elsinore, CA, at GPS coordinates 33.732051N, -117.393964W, on November 19, 2020, 17:35:30 PST. The transit occurred when the ISS was at 27.6 degrees elevation, and at a range of 821km line of sight. This is not ideal, and Jupiter is also nearing solar conjunction. Nevertheless, this presented a unique opportunity to capture a planetary ISS transit. In addition to transiting Jupiter, the ISS passed close to Saturn and the Moon, which is shown in the video linked below.

I posted the following video on YouTube which documents the event, and shows the raw video footage, as well as maps and star charts used in planning:

https://youtu.be/scrG8jif4ZA

The transit was recorded with a C9.25 Edge HD telescope, and ASI183mm camera with a 610nm far-red longpass filter. The exposures were 0.7ms each, and the frame rate was 57fps. The transit ground path was plotted in Google Earth using software written by Ed Morana (http://pictures.ed-morana.com/ISSTransi ... index.html). The transit sequence is composed of 39 consecutive frames containing the spacecraft. The composite image is created by using a maximum intensity blending mode ("Lighten" in Photoshop). Three of the Galilean moons, Io, Ganymede, and Europa are visible in the image. Note that the image is oriented with Jupiter's North Pole at the top. The GRS (Great Red Spot) is not visible......the subtle darker spot visible on the surface of Jupiter is part of the NEB (North Equatorial Belt). After the transit occurred, I manually tracked the ISS as it passed high overhead, which presented a more favorable view for recording details. The same equipment was used, this time with a 0.3ms exposure. The Crew Dragon Resilience can be seen docked on the ISS (link to still image below......this sequence is also contained in the YouTube video):

https://flic.kr/p/2k9CfwX

goodastronomy wrote: ↑Tue Nov 24, 2020 1:35 am Hey all,

Happy to present my recent images from November 2020. These are from our dual remote systems in Fort Davis, Texas consisting of:

Primary - Planewave 14" CDK/Paramount ME2/FLI PL16803 with Chroma filters
Secondary - Stellarvue 130/Paramount Mx+/ASI533MC (also on this setup is a SV70/SX 694 Trius; Askar ACL200/Canon 6d full spectrum).

First is the "Gumby" Nebula (which I always see instead of a running man), aka SH2-279 (14 hours LRGB):

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Next, Messier 74 (13 hours LRGB):

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And finally the Nautilus Galaxy, NGC 772 (10 hours LRGB):

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Tracer wrote: ↑Wed Nov 25, 2020 2:43 am M42
Orion nebula.jpg
Copyright: Ian Barredo

M42 in a mix of narrowband and broadband
Equipment
William Optics Z103mm
ZWO ASI533MC
Filter: Optolong L Xtreme, IDAS LPS D1
Skywatcher AZEQ6
Processing: Astropixelprocessor
Regina, SK
Canada

dominiksito wrote: ↑Wed Nov 25, 2020 3:07 pm Wonders of Orion constellation



This time I tried to cumulate everything I like about Orion constellation in one picture. I used 2 imaging sessions to combine them into one pano picture. The main characters in the scene are: Flame Nebula (NGC 2024), Horsehead Nebula (IC 434), Running Man Nebula (NGC 1977) and Orion Nebula (M42), however there are plenty of other smaller deep sky objects, as well as loads of stellar dust.

EXIF: 20x 5 mins (right side), 20x 30s + 10x 5 mins (left side), Gain 120, Temp: -10C
Equipment: RedCat 52, ZWO ASI 294 MC Pro, ZWO Guiding Kit, AsiAir

dheera wrote: ↑Wed Nov 25, 2020 7:17 pm My submission:

Heart Nebula, Soul Nebula, Double Cluster, and 2 Perseids meteors rising over a chapel on a hill in California.

Taken with a 135/2.8 lens and full frame camera, reference shot denoised and enhanced with a stack of 400 x 30s more stacked sky images.

This image is designed to give people a sense of just how large these nebulae are in the sky; each of the two red nebulae is over 4 full moons wide.

Social media:
http://instagram.com/dheeranet

Heart and Soul by Dheera Venkatraman, on Flickr

Iaffaldano Giuseppe Carmine wrote: ↑Sat Nov 28, 2020 9:03 am M 42 and Ngc 1977
from remote observatory in Colorado; takahashi E180 + Asi 071 pro color

M 42 and Ngc 1977 by gc.iaffaldano, su Flickr

Copyright Dean Salman and Iaffaldano GC.

Efrain Morales wrote: ↑Sun Nov 29, 2020 8:51 pm The Sun on November 29th, 16:58ut. Earlier today (Nov. 29th at 1311UT), Earth-orbiting satellites detected the biggest solar flare (M4.4) in more than 3 years.

mdieterich wrote: ↑Mon Nov 30, 2020 1:43 am Full sky view of the Milky Way and airglow
www.mattdieterich.com
Copyright: Matt Dieterich

Click to view full size image

The dark night skies of Idaho provide a stunning view of the Milky Way! Here is a panorama I captured to show the full sky look at the summer Milky Way from Craters of the Moon National Monument with a Nikon Z6 and 14-24mm lens. The photos were all 30 second untracked images. Ample green airglow was in the sky that night along with Comet NEOWISE hiding behind the clouds on the horizon. Can you spot a few well known deep sky objects like the Andromeda Galaxy and North American Nebula?

thomasroell wrote: ↑Mon Nov 30, 2020 9:45 am I would like to submit the following image for review for APOD.

The target in this image is the Cygnus Wall, the brightest part in the North America Nebula, NGC7000.

The data was shot on the night of September 19th, form my home in the Northern part of The Netherlands, Bortle class 5 skies.

Optics: TS-Optics 115mm Triplet APO
Camera: Astro modified Canon 750D
Subs: 43 x 600 seconds ISO 3200

Thank you for your time,

Kind regards,

Thomas Röell

Instagram: @pilot_astro


Cygnus_Wall_43_frames_600s_iso3200_lnc23_dz10-Stpps.jpg

Jean-Baptiste Auroux wrote: ↑Tue Dec 01, 2020 12:25 am M51 Galaxy

Click to view full size image

Full version : https://astrob.in/full/99e9vs/M/?real=

Here is a portrait of M51 made in a collaborative team, cumulating nearly 100 hours of poses. This famous couple of interacting galaxies in the Big Dipper is often quoted to illustrate what galactic cannibalism can be.

To make the most of the participants' setups, we inlayed the roughs with the finest samples in those with the largest fields, which allowed us to benefit from the details in the galaxy as well as a sufficient field to highlight the very tenuous surrounding NFI, which is rarely seen in images.

We have selected from all the raw : 65 hours of Luminance, 15h of Halpha, 5h30 per RGB color layer

Acquisitions :
- Jean Baptiste Auroux (TSA 102 + Atik one 6.0)
- Julien Favre (TSA 120 + G2-4000)
- Mathieu Guinot (Esprit 120 + QSI 683)
- Fred Lamagat (RC8 @f/5 + Atik 4000)
- Matthieu Tequi (C9 Edge @f/7 + asi1600)
Processing : Aurélien Chapron & Mathieu Guinot

Copyright: Team Astropotes
https://www.facebook.com/astropotos/
https://www.astrobin.com/users/AstroPotes/

Ann wrote: ↑Wed Dec 02, 2020 10:01 am

Iaffaldano Giuseppe Carmine wrote: ↑Sat Nov 14, 2020 2:16 am Dust around Ngc 7497

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Copyright Iaffaldano Giuseppe Carmine

That's a fine and striking image of a skyscape full of stars and streamers of dust, and an (apparently) single galaxy mixed into it all!

Sorry I just had to copy your image, because Starship Asterisk* didn't allow me to post your url.

Ann

Ann wrote: ↑Wed Dec 02, 2020 1:37 pm

Iaffaldano Giuseppe Carmine wrote: ↑Sat Nov 28, 2020 9:03 am M 42 and Ngc 1977
from remote observatory in Colorado; takahashi E180 + Asi 071 pro color

M 42 and Ngc 1977 by gc.iaffaldano, su Flickr

Copyright Dean Salman and Iaffaldano GC.

That is truly an unusually beautiful image of the Orion Nebula!

Ann

Ann wrote: ↑Wed Dec 02, 2020 1:03 pm

KuriousGeorge wrote: ↑Sat Nov 21, 2020 5:04 am Abell 370 Galaxy Cluster and The Dragon – 5 billion light years. KG Observatory, Julian CA.

https://www.astrobin.com/352w9d/B/

Wow, George, It's so impressive that you managed to show us "The Dragon", the set of lensed galaxies, from a distance of 5 billion light years!

Oh, no, wait! It's more impressive than that! It's the foreground Abell 370 Galaxy Cluster that is 5 billion light years away, so the lensed galaxy is even farther back into the early epochs of the Universe!

That's stunningly well done, George!

Ann

Ann wrote: ↑Wed Dec 02, 2020 10:23 am

KuriousGeorge wrote: ↑Sun Nov 15, 2020 8:31 pm The Perseus Cluster of Galaxies. KG Observatory, Julian CA.

We had a very heavy rain on November 8th with 60 mph winds. This finally cleared into an unusually transparent and steady sky. FWHM on the 15-minute Luminance subs was between 1.4" and 2.1". Perfect conditions for shooting tiny distant galaxies. (-:

https://www.astrobin.com/4063x8/

This is a very fine portrait of the fascinating Perseus Cluster of galaxies!

Ann