Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Roberto on Sep 16, 2024, 17:52:00

Title: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Roberto on Sep 16, 2024, 17:52:00
Hello All

Some of these completed (remotely) whilst away on holidays in August, some more recent.

NGC 7129, NGC 7142 and some SNR G107.0+9.0 - LHaRGB

Details here: https://www.astrobin.com/qyktqt/I/ (https://www.astrobin.com/qyktqt/I/)

I had done this area in 2020 but the addition of Ha and the wider FoV of the camera help.  Taken with the usual tandem refractor setup.

Dates:  5 Aug 2024, 9 - 13 Aug 2024, 16 Aug 2024
Frames: OSC -136×300″(11h 20′)
Astrodon H-alpha 5nm 50x50 mm: 17×1200″(5h 40′)
IDAS LPS-P2 50 mm: 60×600″(10h)

Integration: 27h

(https://cdn.astrobin.com/thumbs/eGDCq5Qcl35x_2560x0_3X986N8K.jpg)

Full resolution here:  https://cdn.astrobin.com/thumbs/eGDCq5Qcl35x_16536x0_UyysOTOH.jpg (https://cdn.astrobin.com/thumbs/eGDCq5Qcl35x_16536x0_UyysOTOH.jpg)

NGC6882, NGC6885, Caldwell 37 in Vulpecula - LRGB

A nice cluster within a cluster in Vulpecula.  Details here: https://www.astrobin.com/61t3mo/D/ (https://www.astrobin.com/61t3mo/D/)

Dates: 30 - 31 Jul 2024, 2 Aug 2024, 4 - 5 Aug 2024
Frames: OSC - 143×150″(5h 57′ 30″)
IDAS LPS-P2 50 mm: 78×300″(6h 30′)
Integration: 12h 27′ 30″

(https://cdn.astrobin.com/thumbs/NspcN1I8deCo_2560x0_3X986N8K.jpg)

Tokyo 994 - including Barnard 8, 11, 12, 13 - LRGB

This I finished over the weekend but it's too dark.  I may need to reprocess.  It's a string of dark nebulae (several LDN and Barnard objects), collectively called Tokyo 994.  Details here: https://www.astrobin.com/9mv9yf/D/ (https://www.astrobin.com/9mv9yf/D/)

Dates: 17 Aug 2024, 11 - 14 Sep 2024
Frames: OSC - 142×300″(11h 50′)
IDAS LPS-P2 50 mm: 72×600″(12h)
Integration: 23h 50′

(https://cdn.astrobin.com/thumbs/M_-XhD0exmGk_2560x0_RD_ttans.jpg)

Saturn - 22:34 UT - 14 September 2024

And a quickie of Saturn on Saturday night.   Still very low for imaging from the UK but looks nice visually.  Can't wait for next year.  This one taken with the 10" f/20 Maksutov.

Date: 14 Sep 2024
Time: 23:34
Frames: 50
FPS: 38
Exposure per frame: 25.80 ms

(https://cdn.astrobin.com/thumbs/L2vJfvDSyCbV_2560x0_3X986N8K.jpg)

Roberto

Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Carole on Sep 16, 2024, 23:19:58
Fantastic results Roberto.  Love Saturn and in particular the first one.  I have done NGC 7129 at DSC and even at Bortle 4 but never got a good result.  Just shows what long integration does. 
Not heard of the otehr two before.
Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Roberto on Sep 19, 2024, 11:48:19
Thank you Carole.  I have taken new flats for my L filter and re-processed the L image and LRGB.  Both attached below.

Roberto

Reworked L

(https://cdn.astrobin.com/thumbs/PhbqOg3Kz_5E_2560x0_RD_ttans.jpg)

Reworked LRGB

(https://cdn.astrobin.com/thumbs/uwJLp_EKwN6b_2560x0_RD_ttans.jpg)
Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Carole on Sep 19, 2024, 16:09:13
I like the re-worked L but not so much the re-worked LRGB, looks a ittle blotchy. 
Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Roberto on Sep 19, 2024, 18:00:23
Indeed Carole.  The RGB image alone is better than the LRGB one.  I will leave it at that for now.
Thanks

Roberto
Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Roberto on Sep 21, 2024, 10:53:02
I've reprocessed the LRGB once more.  Now from scratch, starting with the RGB and adding the new L, instead of adding the new L to the old LRGB...I think this is it.  Won't do more to that data.

(https://cdn.astrobin.com/thumbs/ItWpcw5cyggQ_2560x0_RD_ttans.jpg)

Full resolution here:  https://cdn.astrobin.com/thumbs/ItWpcw5cyggQ_16536x0_PBe27Uwd.jpg (https://cdn.astrobin.com/thumbs/ItWpcw5cyggQ_16536x0_PBe27Uwd.jpg)

Roberto
Title: Re: Three darks and one no so bright - NGC7129, NGC6882, Barnards and Saturn
Post by: Carole on Sep 21, 2024, 16:33:09
Think the final version looks a good improvement Roberto.