Search found 18 matches

by ac4lt
Sun Dec 31, 2023 10:29 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 December
Replies: 102
Views: 247005

Re: Submissions: 2023 December

Messier 77 and NGC 1055 - RGB - DSOC - 29h 50m - 2023-12-27.jpg This is M77 (top) and NGC 1055 (bottom). From my reading M77, aside from the obvious ring structure is a barred spiral galaxy and has an active galactic nucleus though those features are hidden from us at optical wavelengths. NGC 1055 ...
by ac4lt
Tue Dec 12, 2023 9:30 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 December
Replies: 102
Views: 247005

Re: Submissions: 2023 December

It seems the constellation of Andromeda does have more than M31! This is NGC 7640, a barred spiral galaxy. NGC 7640 - LRGB - SRO - 31h 55m - 2023-12-12.jpg This is 31h 55m of LRGB data Lum 69×900″(17h 15′) bin 1×1 Red 29×600″(4h 50′) bin 2×2 Blue30×600″(5h) bin 2×2 Green 29×600″(4h 50′) bin 2×2 Equi...
by ac4lt
Sun Dec 03, 2023 3:28 am
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 December
Replies: 102
Views: 247005

Re: Submissions: 2023 December

M33 is a perennial favorite for imaging and for good reason. This was my third attempt and on the largest scope with the finest image scale and I was amazed at the level of fine detail visible in the galaxy. It's worth viewing at full size! This is 40h 55m of HaLRGB data. You can see all the technic...
by ac4lt
Fri Sep 29, 2023 2:30 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 September
Replies: 120
Views: 245923

Re: Submissions: 2023 September

Messier 20 - HaSOLRGB - 2023-09-29.jpg M20, the Triffid, the nebula that everyone has seen a picture of even if they aren't interested in astronomy. For some reason I'd never seen an image of the Triffid that showed a lot of detail, especially in the reflection nebula so I was surprised and a bit a...
by ac4lt
Thu Aug 10, 2023 5:55 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 August
Replies: 146
Views: 372190

Re: Submissions: 2023 August

WR 134 - HOO - 2023-08-10.jpg WR 134 was one of the first three Wolf-Rayet stars identified in 1867 (hard to believe we've been doing spectroscopy for nearly 160 years!) and though the surrounding nebula is not as famous as its cousin the Crescent Nebula), it is still a popular astrophotography tar...
by ac4lt
Mon Jul 17, 2023 8:09 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 July
Replies: 110
Views: 221983

Re: Submissions: 2023 July

This is Barnard 143 in Aquila. When I started this I thought it was going to be a fairly standard looking dark nebula but there was enough faint detail to bring the dark nebula into the light! This is 24h 55m of LRGB data. The image was processed by me with input from our telescope team members Chri...
by ac4lt
Tue May 02, 2023 7:24 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2023 May
Replies: 125
Views: 285014

Re: Submissions: 2023 May

antenna galaxies 2.jpg This is an LRGB image of the Antennae Galaxies in Corvus. It is 21.25 hours of LRGB data taken with an FLI ML16803 camera on a Planewave CDK14 all riding on an Astro-Physics 1600GTO mount located at Sierra Remote Observatories in California. The image was processed with PixIn...
by ac4lt
Wed Nov 09, 2022 4:35 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2022 November
Replies: 109
Views: 169267

Re: Submissions: 2022 November

m27.jpg This is not your father's dumbbell nebula. :) This is 40h 45m of HOO data on M27. The goal was to see how much of the faint outer fringes of the nebula could be brought out. It took a few rounds of processing to finally strike a good balance between core detail and outskirts detail. It's am...
by ac4lt
Fri Oct 28, 2022 8:18 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2022 October
Replies: 138
Views: 267751

Re: Submissions: 2022 October

Deer Lick Group, Stephan's Quintet and some IFN This is 40h 5m of LRGB data acquired on a Planewave CDK14 using an FLI ML16803 at Sierra Remote Observatories in California. Data was acquired rom 16 Oct 2022 through 24 Oct 2022. The image was processed in PixInsight. https://cdn.astrobin.com/thumbs/...
by ac4lt
Mon Oct 18, 2021 3:17 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 October
Replies: 117
Views: 186639

Re: Submissions: 2021 October

This data was acquired in July & August 2021 before the smoke situation out west got horrible. This is 32.5 hours of HOO data on the Crescent, or as I can't unsee now the "Brain with the Blue Combover Nebula". :) Tech details and full size version available at astrobin: https://www.ast...
by ac4lt
Thu Oct 14, 2021 6:02 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 October
Replies: 117
Views: 186639

Re: Submissions: 2021 October

Elephant Trunk Closeup (modified SHO) While I think "E.T.'s Finger" might be a better name we'll go with the traditional label. :) This is 25 hours and 15 minutes of data captured between 23 and 30 September 2021. All the tech details along with a full size version are available at astrobi...
by ac4lt
Sun Oct 10, 2021 6:00 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 October
Replies: 117
Views: 186639

Re: Submissions: 2021 October

The Ghost of Cassiopeia (Sh2-185) in HSO Image acquisition & processing by Linda Thomas-Fowler equipment owned by John Kasianowicz This is 38 hours of HSO data roughly even split across the filters. I tried to process this thematically to try to make the image make the name. that drove the choic...
by ac4lt
Tue Aug 17, 2021 6:22 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 August
Replies: 94
Views: 154461

Re: Submissions: 2021 August

It's a dusty galaxy out there! https://lindasastronomyadventures.files.wordpress.com/2021/08/ldn673-take3.jpg?w=800 LDN 673, a dark nebula in Aquila. This is 18 hours of LRGB data taken at Sierra Remote Observatories with a Planewave CDK14 and an FLI Proline 16803. All the technical details are on a...
by ac4lt
Sun Jul 18, 2021 12:05 am
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 July
Replies: 113
Views: 163644

Re: Submissions: 2021 July

We may have felt like we were living in a bubble the last 16 months but if there is life here, they really are! This is NGC 7635, the Bubble Nebula taken with a Planewave CDK14 at Sierra Remote Observatories. This is 28.5 hours presented in an SOH palette. Full size version and tech details at astro...
by ac4lt
Tue Jul 13, 2021 2:05 am
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 July
Replies: 113
Views: 163644

Re: Submissions: 2021 July

This is M51, the iconic Whirlpool Galaxy, but for the the star of the show (no pun intended!) is how this pair of galaxies almost makes gravity something you can see. The ballet of gravitation interaction, while frozen in time, feels active and full of motion. https://lindasastronomyadventures.files...
by ac4lt
Wed Jan 13, 2021 8:19 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2021 January
Replies: 114
Views: 202015

Re: Submissions: 2021 January

https://lindasastronomyadventures.files.wordpress.com/2020/12/lbn581-hso.jpg?w=900 This is LBN 581 (also known as NGC 7822) in the HSO palette. It is 25.3 hours of data. LBN 581 is very strong in h-alpha and much weaker in both OIII and SII which may explain why it doesn't get a lot of love from im...
by ac4lt
Fri Jan 10, 2020 7:18 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2020 January
Replies: 132
Views: 166959

Re: Submissions: 2020 January

Ann wrote: Fri Jan 10, 2020 6:03 pm Welcome, Linda! I can see that this is your first post here. Your portrait of M33 looks very nice indeed, particularly at full size.

Do come back here and post more pictures! :D

Ann
Thanks, Ann!
by ac4lt
Fri Jan 10, 2020 2:55 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2020 January
Replies: 132
Views: 166959

Re: Submissions: 2020 January

https://live.staticflickr.com/65535/49362259292_29c71f4580.jpg M33 by Linda Thomas-Fowler , on Flickr 14.7 hours from Bortle 7 sky in Northern Virginia. In the fall, M33 was my secondary target. When the primary target for the night went behind the neighbor's tree I would switch to M33 which, by th...