Hello All
Good spell of weather at the end of last week allowed me to finish the Needle Galaxy - NGC4565 - on which I had been working for a while. I also took some L (through LP filter) and reworked an old version of M101 in February.
Further information at the Astrobin links:
NGC4565 - Needle Galaxy in Coma Berenices
(https://astrob.in/397598/E/rawthumb/gallery/get.jpg?insecure) (https://astrob.in/397598/E/)
Note main image is a crop of the galaxy at the centre of a much wider field:
(https://astrob.in/397598/D/rawthumb/gallery/get.jpg?insecure) (https://astrob.in/397598/D/)
Check also the annotated version: https://www.astrobin.com/full/397598/C/?nc=user
M101 - New luminance and old colour
(https://astrob.in/393859/B/rawthumb/gallery/get.jpg?insecure) (https://astrob.in/393859/B/)
Thanks
Roberto
Larger images:
(https://cdn.astrobin.com/thumbs/3lcyFPqzewiS_1824x0_6z62Xp46.jpg)
(https://cdn.astrobin.com/thumbs/wTnbWjz04C1V_1824x0_6z62Xp46.jpg)
(https://cdn.astrobin.com/thumbs/-RWL_qGXD5Vv_1824x0_wc4_Z8tK.jpg)
Excellent Roberto.
I couldn't get anything as good as your M101 in a dark location.
Carole
Superb - The Needle Galaxy is fantastic - you sure that hasn't been nicked from Hubble? John
The Needle Galaxy is stunning!
Hugh
Thank you Carole, John, Hugh :P
My current setup is not best suited to image galaxies as these tend to be small in size for the FoV and resolution of my refractor. I had never imaged the Needle so given the lack of larger targets I went for it. It's incredible to think there might be other amateur astronomers looking down on us from there!
Roberto
Lovely galaxies Roberto
Your M101 is reminiscent of Hubble images with the galaxies peaking out of space.
Really good.
That's a huge chip you've got on a 6" refractor; your flattener is obviously doing the business very well.
Noel
Hi Noel
Thank you; yes the chip is a full frame KAF-16803 and I use a 4" flattener from Astro-Physics. It has sagged a little over the winter so I will have to re-align it during the next full moon cycle; I can see some elongated stars in the upper corners of my latest images. The funny looking stars in the M101 frame are from using luminance from a different optical path (different flattener actually) than the original colour shot.
Roberto
Once again Roberto another set of lovely images. It looks like Voyager is giving you some impressive imaging time. I noticed that the Needle galaxy was RGB, is luminance on your todo list for the future ?
Robert
Hi Robert
Thank you. I did take Luminance through a LPS filter. I have always used one for that channel - not for colour or narrowband. Details on Astrobin:
Dates:March 12, 2019, March 13, 2019, March 24, 2019, March 25, 2019, March 26, 2019, March 28, 2019, March 29, 2019, March 30, 2019
Frames:
Astrodon Blue G2E: 26x300" bin 1x1
Astrodon Green G2E: 21x300" bin 1x1
Astrodon Red G2E: 18x300" bin 1x1
Hutech IDAS LPS P2 50mm square: 47x600" bin 1x1
Integration: 13.2 hours
Avg. Moon age: 17.57 days
Avg. Moon phase: 51.30%
Astrometry.net job: 2613488
RA center: 189.087 degrees
DEC center: 25.998 degrees
Pixel scale: 1.431 arcsec/pixel
Orientation: 180.426 degrees
Field radius: 0.278 degrees
Locations: Home - Petts Wood, Petts Wood, United Kingdom
Data source: Backyard
Hi Roberto,
That Needle Galaxy is really excellent! Well worth all the effort.
Mark