Planetary Nebulae

Click on the individual pictures or titles below to see complete pictures

M27 by 31cm + AO-7 + ST-7E

L: 31cm + TeleConvertor(x1.6) + AO-7 + ST-7E with Edmound IR Blocker, 60min, AO:5Hz
RGB: 31cm + Teleconvertor(x1.4)+HPC-1, R=20mim, G=30min, B=10min, SBIG RGB filter
The nebula part has been composed on the L-ch of wide view image by HPC-1.

M57 by 31cm Newtonian

31cm + x1.6 tele-convertor + AO-7 (10Hz)+ ST-7E
L=35min, R=10min, G=15min, B=20min

M76 by 12 inch (31cm) + AO-7 + ST-7E

L: 31cm + TeleConvertor(x1.6) + AO-7 + ST-7E with Edmound IR Blocker, 90min, AO:27Hz
RGB: 31cm + Teleconvertor(x1.4)+HPC-1, R=G=40mim, B=80min, SBIG RGB filter
One iteration by CCDSharp L-R deconvolution "after" DDP.

M97 by 31cm Newtonian

L=90min (with x1.6 tele-convertor + AO-7 + ST-7E)
R=B=G=60min (with x1.4 tele-convertor) + HPC-1

Eskimo nebula (JPEG,16kB)

Exposure time: R,G=40 min B=60 min, HPC-1.

NGC2438 in M46 (JPEG, 51kB)

Exposure time: R,G=40 min B=60 min, HPC-1.

NGC7662

31cm + TeleConvertor(x1.6) + AO-7 + ST-7E
L=10min, R=G=B=5min(Tokai Type III).

NGC7009 C8 vs 31cm Newtonian

Left: C8 +AO-7+ST-7E , reprocessed with CCDSharp
L: 20min (5min x 4) , R=G=5min and B=10min,with Tokai LRGB Type-3 filter.
Right: 31cm + TeleConvertor (F=8) + AO-7 + ST-7E
L:60min(5min x 12), R=G=5min, B=10min.

PK205-14.1

L:60min, R=B=20min, B=40min
A small planetary nebula in Gemini.

NGC6826 by 31cm Newtonian

31cm + x1.6 tele-convertor + AO-7 + ST-7E
L=27.5min, R=G=B=10min 

 NGC's Planetary Nebulae (JPEG,58kB)

(from left top to botom) NGC246, NGC2392, NGC3242, NGC6781, NGC6826, NGC6905, NGC7009, NGC7026, NGC7027, NGC7048, NGC7635, NGC7662
Data:
31cm (12inches) F=5 Newtonian reflector with the SBIG ST-6 and 2x tele-converter. The red, green, and blue exposures, all 10 to 20 minutes long with the SBIG filters and guided by ST-4, except that:
NGC2392: pseudo color from red light exposures
NGC3242: by HPC-1
NGC7662: 20cm (8 inches) F=5 Newtonian reflector