Simon Todd Astrophotography
NGC7635 - Bubble Nebula in Narrowband Hubble Palette
Object: NGC7635 - Bubble Nebula - Narrowband Hubble Palette
Location: Cassiopeia (RA= 23h 20m 48.3, Dec= +61° 12′ 06)
Details: NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel.
Image Details:
7nm HA Data (Green Channel): 6x1800S, 23 Darks, 23 Flats, 23 BIAS
7nm OIII Data (Blue Channel): 5x1800S, 23 Darks, 23 Flats, 23 BIAS
7nm SII Data (Red Channel): 4x1800S, 23 Darks, 23 Flats, 23 BIAS
Imaging Scope: Astro-Tech AT8RC / Celestron C80ED
Imaging Camera: ATIK 383L+ Mono CCD Cooled to -25C
FilterWheel: StarlightXpress 7x36 Unmounted
Filters: Baader
Guide Camera: QHY5
Off Axis Guider: TS 9mm OAG
Mount: Skywatcher NEQ6Pro (Steel Pier Mounted)
Image Acquisition Software: Maxim DL
Dark/Flat/BIAS frame subtraction and Stacking: Nebulosity 3
Post Processing: Adobe Photoshop CS5, Gradient Xterminator, Noise Ninja
This is my first ever 100% Narrowband image. I plan on getting more Narrowband Data and boosting up the SII content, so this is a work in progress
NGC7635 - Bubble Nebula in Narrowband Hubble Palette
Object: NGC7635 - Bubble Nebula - Narrowband Hubble Palette
Location: Cassiopeia (RA= 23h 20m 48.3, Dec= +61° 12′ 06)
Details: NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel.
Image Details:
7nm HA Data (Green Channel): 6x1800S, 23 Darks, 23 Flats, 23 BIAS
7nm OIII Data (Blue Channel): 5x1800S, 23 Darks, 23 Flats, 23 BIAS
7nm SII Data (Red Channel): 4x1800S, 23 Darks, 23 Flats, 23 BIAS
Imaging Scope: Astro-Tech AT8RC / Celestron C80ED
Imaging Camera: ATIK 383L+ Mono CCD Cooled to -25C
FilterWheel: StarlightXpress 7x36 Unmounted
Filters: Baader
Guide Camera: QHY5
Off Axis Guider: TS 9mm OAG
Mount: Skywatcher NEQ6Pro (Steel Pier Mounted)
Image Acquisition Software: Maxim DL
Dark/Flat/BIAS frame subtraction and Stacking: Nebulosity 3
Post Processing: Adobe Photoshop CS5, Gradient Xterminator, Noise Ninja
This is my first ever 100% Narrowband image. I plan on getting more Narrowband Data and boosting up the SII content, so this is a work in progress