The Image Index is a system based on likes received on images, that incentivizes the most active and liked members of the community. Learn more.
The Contribution Index (beta) is system to reward informative, constructive, and valuable commentary on AstroBin. Learn more.
Imaging telescopes or lenses: TS Optics APO130f6
Imaging cameras: ZWO ASI1600MM-Cool
Mounts: Ioptron CEM 120 EC2
Guiding telescopes or lenses: TS Optics APO130f6
Guiding cameras: Starlight Express Lodestar X2 Autoguider
Focal reducers: TS-Optics TSFlat 2
Software: Sequence Generator Pro · PixInsight · PHD Guiding 2.5.0
Filters: ZWO new B · ZWO new G · ZWO new R · AstroDon 5nm Ha filter · AstroDon 5nm SII filter · AstroDon 5nm OIII filter
Accessory: ZWO EFW 31mm 8 positions · Starlight Xpress AO Unit · QHYCCD PoleMaster · Innovations Foresight ONAG · USB_Focus V3 Usb Focus · USB Stepper Motor Heavy Load
Dates:May 10, 2018 , Aug. 10, 2018 , Aug. 15, 2018
Frames:
AstroDon 5nm Ha filter: 3x300" (gain: 139.00) -15C bin 1x1
AstroDon 5nm Ha filter: 6x600" (gain: 139.00) -15C bin 1x1
AstroDon 5nm OIII filter: 3x300" (gain: 139.00) -15C bin 1x1
AstroDon 5nm OIII filter: 5x600" (gain: 139.00) -18C bin 1x1
ZWO new B: 6x120" (gain: 139.00) -18C bin 1x1
ZWO new G: 6x120" (gain: 139.00) -18C bin 1x1
ZWO new R: 6x120" (gain: 139.00) -18C bin 1x1
Integration: 2.9 hours
Avg. Moon age: 19.14 days
Avg. Moon phase: 16.80%
Astrometry.net job: 2444705
Resolution: 4486x3390
Locations: Duc, Prayssas, Lot et Garonne, France
Data source: Backyard
This image is the combination of the 30 min exposure of the May 10th earlier this year with the summer data of this nebula.
The seeing was not so good on these exposures (R: 3", B: 3.5", Ha: 2.7", O3: 3.5")
I have included the :
- H alpha version
- the RGB data
- the final version is a test to further match the star color with the RGB color without artifact. I have used a Max functionin PixelMath, something like :
Max(RGBHOO , RGBHOO * (1-starmask) + RGB * starmask)
The max function is efficient to avoid dark ring around star.
The processing was done in PI as follow (version original):
For each R ,G ,V, Ha, OIII & SII channels :
- Flat Field Dark Substraction
- Flat Field Integration
- Images Calibration (Dark Substraction for RGBSHO and FF correction only for RGB (no need for SHO ...))
- Cosmetic Correction
- Image Registration
- Image Integration
- Noise Reduction (Demure) with 1 as variance
Using each integrated channel :
- Created RGB color image using channel combination
- Color balance on stars
- Created RGBSHO image using NBLRGB combination tool
- Nonlinear Image Creation using NBRGB values
- Color balance on all image
- Perform SCNR (neutral 100%)
- Color saturation with boost in blue and mask to protect dark area.
- Final manual color balance to boost blue
Final image adjustments performed in Iphoto on Imac (levels adjustments, +15% color sat, +10% definition, and deflip & crop)
Description: H alpha
Description: RGB
Description: Star color adjusted in HOO-RGB
Description: Same as E but with a darker sky background
ZWO ASI1600MM/QHY163M |
Du hast keine neuen Benachrichtigungen. |
This page or operation is not available at the moment, because AstroBin is in READ ONLY mode. For more information, please check out our Twitter feed: https://twitter.com/AstroBin_com
This feature is only offered at higher membership levels.
Would you be interested in upgrading? AstroBin is a very small business and your support would mean a lot!
If this user has been harassing you, and you shadow-ban them, all their activities on your content will be invisible to everyone except themselves.
They will not know that they have been shadow-banned, and the goal is that eventually they will get bored while having caused no harm, since nobody saw what they posted.
You will remove your shadow-ban on this user, and their comments, messages, etc, will appear again on your content.
Such limitation improves the website as a whole by discouraging people from creating fake accounts to like their own content. Thank you for understanding!
Currently, your Image Index is .
To learn more about the Image Index, please visit the FAQ page. Thanks!
Comments