Exposure time: R=40 min, G=60 min, B=80 min, HPC-1.
M1 2000 by C8 + AO-7 + ST-7E + EM200SS-NZ
L: 100min (20min x 4 + 10min x 2) , LRGB-combined with a RGB image
from the previous HPC-1 image.
Taken by C8+ AO-7 + ST-7E, EM200 + SkySensor2000PC modified (EM200SS-NZ).
The PEC by SkySensor is very helpful for imaging by AO-7. The 20 minite-exposures are possible within only 2-3% swing of the AO-mirror!! The resolution of this image is close to 12 inch + HPC-1.
L:30min, R=G=B=10min. At the mount Fuji.
R:4min, G:6min, B:8min, 1.4x tele-converter, HPC-1
A very special technique has been used here. The image by Kodak Echtar 25 has been used as RGB channel, and the image by HPC-1 CCD with Infra-red filter (passband > 700nm) has been used for L-ch. As a results, the redish stars means they might be behind or in the Nebula. Now, you can see a lot of stars 'through' the Orion Nebula!
L:IR band, 4 min by 31cm + HPC-1, RGB:60min by 20cm F5 + Ektar25
Horse Head Nebula
L: 180min (20min x 9 with R64 + Edmound IR block)) , R=G=60min,
31cm +HPC-1, guided by ST-5.
Exposure time:140min, HPC-1
Exposure time:120min, HPC-1, psued-color
Exposures:total 40min. 31cm Newtonian + HPC-1.
R:100min, G:80min, B:120min, processed by LRGB, HPC-1
R:60min, G:60min, B:80min, processd by LRGB, HPC-1
31cm + TeleConvertor(x1.6) + AO-7 +
L (with R filter):30min, R=10mim, G=15min, B=20min (RGB: 2x2 Bin.), AO:5Hz
SBIG RGB filter
Revised the color bala