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Astrophotography
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| Watsisname | Date: Wednesday, 21.10.2015, 09:18 | Message # 526 |
 Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| M45 is a surprisingly difficult target for capturing nebulosity. Your results are already quite good! :)
Thoughts and suggestions:
You did lose a lot of color information somewhere along the way. The image is almost completely desaturated. Stars should be brilliantly blue. Consider your white balancing first: a good technique is to increase the saturation to full, then affect color temperature until the image is essentially half blue and half red/orange. Don't actually perform this change; increasing the saturation is just a visual aid for determining what the correct WB setting is. Change saturation or do other color manipulations later.
As for not getting much nebulosity, don't be surprised. I'm actually impressed that you got any of it. Your biggest challenge is the lack of a tracking mount, so you have short exposure times. Darkness of the sky matters, too. But, you might be able to get more from your image processing, especially with curve stretching. There's a lot of hidden detail you can pull out from a processed image stack, especially with well calibrated frames. So look into tutorials, see if other techniques might get more detail out of your data.
Tutorials I can recommend:
Frame Calibration
Lonely Speck (processing techniques with Photoshop and Lightroom)
Hope that helps!
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| pzampella | Date: Wednesday, 21.10.2015, 18:44 | Message # 527 |
 Space Pilot
Group: Users
Venezuela
Messages: 115
Status: Offline
| Watsisname, Thank you very much for your help! I'll use those tutorials to see if it helps!
About the color: I searched online and found out that when I post-process the final stacked image on DeepSpaceStacker, the software 'cuts' the color and leaves it black and white. However, when I open the final image, without changes, on Photoshop, it turns really green! Any idea of what am I doing wrong and how can I fix it? Thanks!
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| midtskogen | Date: Friday, 23.10.2015, 06:24 | Message # 528 |
 Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| Venus, Mars and Jupiter are nicely aligned right now. The image below is a single frame from a video recording, so the quality isn't that much, but it's a calibrated camera so I could easily add a grid to show how close they are.
It was taken 03:32 UTC today.
NIL DIFFICILE VOLENTI
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| Watsisname | Date: Friday, 23.10.2015, 07:40 | Message # 529 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| pzampella, what kind of file is it being exporting it as? Is it a .fits? Sometimes image editors incorrectly interpret the color channel information with the default settings for opening that file type. Try checking the image mode and color channels manually.
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| pzampella | Date: Friday, 23.10.2015, 18:42 | Message # 530 |
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Space Pilot
Group: Users
Venezuela
Messages: 115
Status: Offline
| Watsisname, I used raw files (.cr2) and saved the result as a .tif
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| midtskogen | Date: Thursday, 05.11.2015, 20:33 | Message # 531 |
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Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| The Taurids (the southern and northern) are active. Here are some pics of Taurids taken over the past week.
NIL DIFFICILE VOLENTI
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| Watsisname | Date: Saturday, 07.11.2015, 23:57 | Message # 532 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Nice ones! No chance for me seeing them of late; cloud season is in full force.
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| pzampella | Date: Sunday, 08.11.2015, 17:05 | Message # 533 |
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Space Pilot
Group: Users
Venezuela
Messages: 115
Status: Offline
| A couple pics I took 3 days ago from Caracas, Venezuela: Orion's Belt and Orion's Nebula in detail. I'll keep trying to improve my technique.
40x4s shots at 6400ISO
100x1s shot at 6400ISO
Edited by pzampella - Thursday, 12.11.2015, 15:04 |
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| Watsisname | Date: Monday, 09.11.2015, 06:19 | Message # 534 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Wow, these are superb, especially the close-up! You've gotten really good. 
One suggestion might be to try taking another set of images with the same exposure but lower ISO, to get the brighter details at the center that are being blown out here at 6400. Then blend those sets together to make an HDR-like image.
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| pzampella | Date: Monday, 09.11.2015, 15:46 | Message # 535 |
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Space Pilot
Group: Users
Venezuela
Messages: 115
Status: Offline
| Watsisname, that's in fact a really good idea! However, I blown up those details in post-processing so I could get more nebulisity. I'll try doing that now.
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| Watsisname | Date: Tuesday, 10.11.2015, 07:15 | Message # 536 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| I see your edit; really nice work! 
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| pzampella | Date: Tuesday, 10.11.2015, 17:24 | Message # 537 |
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Space Pilot
Group: Users
Venezuela
Messages: 115
Status: Offline
| Watsisname, I used the same images, but protected the nebula using masks.
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| midtskogen | Date: Sunday, 22.11.2015, 20:01 | Message # 538 |
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Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| I found this pair of photos interesting. We see the same Taurid, taken tonight, from two different locations. First from the side:
Then almost head on:
In the second shot the meteor is going upwards in the sky and seem to increase in speed. To better see how, here's a map showing the two locations (OSL and KRI):
NIL DIFFICILE VOLENTI
Edited by midtskogen - Sunday, 22.11.2015, 20:01 |
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| steeljaw354 | Date: Tuesday, 08.12.2015, 11:29 | Message # 539 |
 World Builder
Group: Users
Pirate
Messages: 862
Status: Offline
| Uranus and neptune
Edited by steeljaw354 - Tuesday, 08.12.2015, 11:31 |
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| Watsisname | Date: Wednesday, 09.12.2015, 00:22 | Message # 540 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Impressive! What's your equipment?
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