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Old 04-08-2013, 07:38 AM
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nebulosity. (Jo)
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Wide Field Milky Way Panels

G'day

We have had some awesome clear nights this week and I have been able to get these pictures.

I used a Nikor 85mm f1.8 lens stopped down to f4, and a Panasonic GX1 which has a 2x crop sensor, so really Im imaging at 170mm f4.

Subs were 128 seconds each at ISO 800.

The FOV is 11.5 degrees

I have generally been going out at around 8:30 setting the camera up and then going to bed leaving the camera happily collect subs until the battery runs out or the lens fogs up.

The first picture I don't know exactly were it is, I remember pointing the camera somewhere near the base of the neck of the Emu (Norma?), if any one can identify the nebula that would be cool. (70 subs)

The second picture again I don't know exactly were it is, I think it's in Scutum or Aquila? anyhow there is a big glob in the middle and what seams to be a reflection nebula in the top right hand corner? (40 subs)

The last one is pretty obvious with M8 and M20, I reckon this is probably the best of the three, the stars seem to be smaller? tighter? (90 subs)

Im stacking one at the moment of the southern cross and coal sack, its starting to look pretty good.

If anyone has tips/suggestions I would love to hear them.

I had a bit of trouble trying to down size them so these pics are not much compared with the original 36MP 16bit tiffs

Thanks for looking

Jo
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  #2  
Old 04-08-2013, 08:20 AM
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Andy01 (Andy)
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Nice work! Was thinking that glob in pic 2 could be M11?
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Old 06-08-2013, 08:24 AM
Camknox (Cameron)
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Wonderful images, thanks for sharing
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Old 06-08-2013, 11:01 AM
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mithrandir (Andrew)
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Jo, according to astrometry.net (I have ~10GB of indexes):

Field 1: solved with index index-4113.fits.
Field 1 solved: writing to file MW-04/4.solved to indicate this.
Field: 4.jpg
Field center: (RA,Dec) = (281.1, -7.316) deg.
Field center: (RA H:M:S, Dec D:M:S) = (18:44:17.984, -07:18:58.702).
Field size: 11.498 x 8.63261 degrees
Creating new FITS file "MW-04/4.new"...
Creating index object overlay plot...
Creating annotation plot...
Your field contains:
Part of the constellation Scutum (Sct)
IC 1287
NGC 6664
NGC 6683
NGC 6694 / M 26
NGC 6705 / M 11 / Wild Duck cluster


Field 1: solved with index index-4115.fits.
Field 1 solved: writing to file MW-11-10/11-10.solved to indicate this.
Field: 11-10.jpg
Field center: (RA,Dec) = (274.5, -26.2) deg.
Field center: (RA H:M:S, Dec D:M:S) = (18:18:05.563, -26:12:13.774).
Field size: 11.7712 x 9.01488 degrees
Creating new FITS file "MW-11-10/11-10.new"...
Creating index object overlay plot...
Creating annotation plot...
Your field contains:
Part of the constellation Sagittarius (Sgr)
NGC 6469
NGC 6514 / M 20 / Trifid nebula
NGC 6526
NGC 6523 / Hourglass nebula / Lagoon nebula / M 8
NGC 6531 / M 21
NGC 6530
NGC 6546
NGC 6626 / M 28
NGC 6656 / M 22


Field 1: solved with index index-4115.fits.
Field 1 solved: writing to file MW-15/15.solved to indicate this.
Field: 15.jpg
Field center: (RA,Dec) = (249, -51.55) deg.
Field center: (RA H:M:S, Dec D:M:S) = (16:36:07.015, -51:32:56.856).
Field size: 11.2498 x 8.43211 degrees
Creating new FITS file "MW-15/15.new"...
Creating index object overlay plot...
Creating annotation plot...
Your field contains:
The constellation Norma (Nor)
NGC 6067
NGC 6152
NGC 6188
NGC 6193
NGC 6208

converted back to JPG to upload
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  #5  
Old 07-08-2013, 06:34 AM
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nebulosity. (Jo)
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Andrew, thanks so much for doing that, I didn't realise I had captured so many things.

Having parts of the constellations marked is really awesome.


Jo

Is there some way I can download them?
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  #6  
Old 07-08-2013, 01:36 PM
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Retrograde (Pete)
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Great stuff Jo (& Andrew).
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Old 07-08-2013, 06:58 PM
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nebulosity. (Jo)
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Quote:
Originally Posted by Retrograde View Post
Great stuff Jo (& Andrew).
Thanks Pete
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  #8  
Old 11-08-2013, 12:24 PM
cosmophoton (Luiz)
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Those are very nice wide fields, with good focus and guiding. I suggest to calibrate the colors, it's a bit too violet in the H-alpha regions.
Cheers,
Luiz
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  #9  
Old 11-08-2013, 03:55 PM
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mithrandir (Andrew)
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Quote:
Originally Posted by nebulosity. View Post
Andrew, thanks so much for doing that, I didn't realise I had captured so many things.
And I didn't have it mark all the named stars, or stars from the HD catalog.
Quote:
Having parts of the constellations marked is really awesome.


Jo

Is there some way I can download them?
I'm not sure I understand the question Jo. If you want images annotated like that and don't want to download all the programs and data files to do the computation on your own computer (see the astrometry.net web site - around 11GB in all) you can do it at http://nova.astrometry.net

You do best to create a logon so it can keep track of your images for you.
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