 |
|
|
Messier 27 - NGC 6853"Dumbbell Nebula"
Planetary Nebula - Type 3 + 2
RA: 19h 59'
DEC: +22degrees 43'
SIZE: 8.0' X 5.7'
VISUAL MAGNITUDE: 7.3
CENTRAL STAR: 13.80
CONSTELLATION: Vulpecula
DISTANCE: 815 Light Years
DIAMETER: 2.1 Light Years
IMAGING INFORMATION
RCOS 10 Carbon R/C, Ritchey-Chretien reflector, on Paramount GT1100 mount.
REDUCER/CORRECTOR:
None - Operating at focal length of 9.0
CAMERA:
Santa Barbara Instruments, ST-8XME Digital (Thermoelectrically cooled)
ADAPTIVE OPTICS: None
FILTER(S):
Luminence, Red, Green, Blue (Astrodon)
CCD COOLING TEMPERATURE: -15 C
BINNING/RESOLUTION:
1 X 1 (1530 X 1020) L - 2 X 2 (765 X 510 resized to 1530 X 1020) RGB
EXPOSURE TIME: L = 10 - 5 minute
subframes, RGB 10 - 3 minute subframes (each color) (2 hours, 20 minutes total)
NUMBER OF IMAGES: 40
FILM SPEED: N/A
DATE/TIME: 05-24-2006
LOCATION:
Valley Center, San Diego County, California
TEMPERATURE: 61 Degrees
HUMIDITY: 34 Percent
To see the spectra of this object click here |
|
|
|
|
|
|
|
IMAGING INFORMATION
Celestron C-14 FL 3911 mm,
Schmidt-Cassegrain reflector, on Paramont GT1100 mount
REDUCER/CORRECTOR: Celestron 6.3
CAMERA:
Santa Barbara Instruments, ST-8 Digital (Thermoelectrically cooled)
ADAPTIVE OPTICS: AO-7
FILTER(S): None
CCD COOLING TEMPERATURE: -5 C
BINNING/RESOLUTION: 1 X 1 (1530 X 1020)
EXPOSURE TIME: 60 minutes
NUMBER OF IMAGES: 1
FILM SPEED: N/A
DATE/TIME: 06-13-2004 / 08:22:17 UTC
LOCATION:
Valley Center, San Diego County, California
TEMPERATURE: Unknown
HUMIDITY: Unknown
|
|
|
|
|
|
|
|
IMAGING INFORMATION
RCOS 10 Carbon R/C, Ritchey-Chretien reflector, on Paramount GT1100 mount.
REDUCER/CORRECTOR: Astro-physics 6.5
CAMERA:
Santa Barbara Instruments, ST-8 Digital (Thermoelectrically cooled)
ADAPTIVE OPTICS: None
FILTER(S): Astrodon H-a
CCD COOLING TEMPERATURE: -15 C
BINNING/RESOLUTION:
1 X 1 (1530 X 1020) LRGB
EXPOSURE TIME:
135 minutes (1 1/4 hours) total, 5-15 min H-a
NUMBER OF IMAGES: 5
FILM SPEED: None
DATE/TIME: 08-3-2005 & 08-4-2005
LOCATION:
Valley Center, San Diego County, California
TEMPERATURE: 61 Degrees
HUMIDITY: 34 Percent
|
|
|
|
|
|
|
|
IMAGING INFORMATION
Celestron C-11, FL 2800 mm, Schmidt-Cassegrain reflector
REDUCER/CORRECTOR: Celestron 6.3
CAMERA:
Santa Barbara Instruments, ST-8 Digital (Thermoelectrically cooled)
ADAPTIVE OPTICS: None
FILTER(S): Red, Green, Blue
CCD COOLING TEMPERATURE: -15 C
BINNING/RESOLUTION: 2 X 2 (765 X 510)
EXPOSURE TIME:
12 minutes Red, 22 minutes Green, 45 minutes Blue,
NUMBER OF IMAGES:
3 combined to create a tri color image
FILM SPEED: N/A
DATE/TIME: 08-15-1999 / 06:57:34 UTC
LOCATION:
Observatory Campground, Palomar Mountain,San Diego County, California
TEMPERATURE: Unknown
HUMIDITY: Unknown
This was the first color RGB image I had attempted. I was at Palomar Mountain, attending the Explore the Stars program. I did no fine polar alignment of the telescope mount (just ballparked it
off the north star),and I fought the poor telescope drive gears!!! I didn't collect any Flat-Field frames, Dark frames, or Bias frame for end processing of the object images at the time. I've learned
a lot and come a long way since then! |
|
|
