Messier 27
Home
Galaxies
Nebulas
Supernovas
Star Clusters
Star Groups
Moon & Planets
Comets
Wide-Field Images

Image by Kevin Hearst 

Messier 27 - NGC 6853

"Dumbbell Nebula"

  • TYPE:  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

  • TELESCOPE:  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

  • TELESCOPE:  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

  • TELESCOPE:  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

  • TELESCOPE:  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! 

BACK TO THE TOP

All the images in this site are Copyright 1999-2022 by Kevin Hearst.
Commercial use of these images without the prior written consent or knowledge of the author is strictly prohibited..

IC 5146
M97
NGC 6781
NGC 1514
NGC2392
IC 434
Messier 57
Messier 27
Messier 17
Messier 42
NGC 7635