Πλανητικο Νεφελωμα Μ27

Location: Athens, Greece (38.2997° N, 23.7430° E)

Date: August 27, 2005 (22:00 - 23:00 UT+3)

Equipment: AP 160/f7.5 Starfire EDF, Losmandy G-11 GEM, SBIG ST-2000XM, SBIG CFW-8A

Integrations:

Red : 12 min (24 x 30 sec)

Green : 12 min (24 x 30 sec)

Blue : 12 min (24 x 30 sec)

Dark : 18 min (36 x 30 sec)

Flats : None

Bias : N/A

Binning : 1x1 (RGB)

Temperatures:

Ambient : + 28.1 ° C

CCD Chip: - 02.3 ° C

Software: CCDSoft V5.00.156, AIP4Win V1.4.25, Photoshop V6

Processing: Reduction, Calibration/Registration, Maximum Entropy, Colour Balance, RGB Combine, Resampling (50%), JPG Compression

#1. All integrations reduced using CCDSoft Groups. Dark Frames were mean-combined.

#2. Calibration and registration using AIP4WIN.

#3. Master RGB channels constructed using sum-combine in AIP4Win.

#4. Two iterations of Maxim Entropy were applied to the Luminance layer in CCDSoft.

#5. Color combine (RGB: 0.653:1.000:0.782) using AIP4Win.

#6. Resampling (50%) and JPG compression in Photoshop.