Search found 12 matches

by MikeODay
Tue Mar 27, 2018 8:43 am
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2018 March
Replies: 128
Views: 443366

Re: Submissions: 2018 March

Carina Nebula in HDR and full colour 304AAEDA-CD19-43EF-A438-4BA0FC0AA3B9.jpeg This HDR image is constructed from 12 sets of exposures ranging from 1/8 sec ( to capture the bright centre of Eta Carinae ) through to 240 seconds. Total exposure time around 13 hours. Captured from a home observatory wi...
by MikeODay
Sat Jul 15, 2017 4:07 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

Thankyou bystander for adding the image - much appreciated.
by MikeODay
Sat Jul 15, 2017 11:34 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

I have just uploaded a re-processed version of this APOD to my Flickr page: https://flic.kr/p/WupNxf This one goes deeper ( bringing out more stars ). ( Sorry, I would post it here rather than a link but I don't know how to upload an image. ) https://c1.staticflickr.com/5/4307/35764771492_bfc3d3c561...
by MikeODay
Wed Jul 12, 2017 11:19 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: Some technical details on the image

A deep look at Omega Centauri ( NGC 5139 ) Capture: 9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO800. Processing:. Calibration: master bias, master flat and no darks. Integration in 9 sets. HDR combination. Pixinsight May 2017 Hi Mike, Great image. I'm ...
by MikeODay
Wed Jul 12, 2017 10:49 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

"...try to reproduce as best I can the "true colours" of the objects" - reminds me of the tour of a deep underground cave with the guide shining UV light on some of the rocks to bring out dramatic colors. One tourist objected that that was fake! Not true colors! So the guide sai...
by MikeODay
Tue Jul 11, 2017 7:06 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

Mike Oday, I get the same math of .18 cubic l.y. but this would mean that each star is .56 l.y. away from each other. That is assuming equal distribution but of course it's not. Does anyone have what it might look like inside such a globular cluster? My searching skills failed me. The only thing I ...
by MikeODay
Tue Jul 11, 2017 6:53 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

Looking at today's APOD, I'm reminded of the only time I have ever looked at a globular cluster through a telescope. As a Color Commentator who gets a huge kick out of the colors of the universe, especially the tints of blue, I was very disappointed at the sight of M13. It was all white, with the f...
by MikeODay
Tue Jul 11, 2017 11:12 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

What would the average distance between stars be? I guess much less than 4 ly, the one to alfa centauri. Would a planet inside the cluster show a night sky similar to ours or would it be incredibly full of stars? A very bight night sky I imagine, especially towards the core! As a first approximatio...
by MikeODay
Tue Jul 11, 2017 10:54 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

Boomer12k wrote:Really great image, and work.

How can something be... "In fact....maybe...."? :?

:---[===] *
Thank you, much appreciated.
by MikeODay
Tue Jul 11, 2017 5:07 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Re: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)

Blastov wrote:Beautiful. i am struck by its seemingly spherical shape and wonder how does an enormous mass of stars such as this not begin to rotate and flatten out the same way galaxies and protoplanetary accretion disks do?
Thank you - much appreciated.
by MikeODay
Tue Jul 11, 2017 5:04 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster Omega Centauri in HDR (2017 Jul 11)
Replies: 41
Views: 8315

Some technical details on the image

A deep look at Omega Centauri ( NGC 5139 ) This image is an attempt to look deeply into the Omega Centauri star cluster and, by using HDR techniques, record as many of its faint members as possible whilst capturing and bringing out the subtle colours of the stars, including in the core. Image detail...
by MikeODay
Fri Jul 07, 2017 9:32 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A View Toward M106 (2017 Jul 07)
Replies: 10
Views: 3169

Re: APOD: A View Toward M106 (2017 Jul 07)

Congratulations Peter and very well deserved. This is a lovely clean and natural looking image that, as well as the beautifully rendered main targets, reveals more and more as one zooms in to see the multitudes of 'tiny' galaxies and colourful stars in this rich region of the sky. Well done.