Hemisphere:  Northern  ·  Contains:  Bubble Nebula  ·  NGC 7635

Image of the day 03/23/2014

    NGC 7635: THE BUBBLE NEBULA, 



    
        

            Theodore Arampatz...
    NGC 7635: THE BUBBLE NEBULA
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    NGC 7635: THE BUBBLE NEBULA

    Technical card

    Imaging telescopes or lenses: William Optics FLT 110

    Imaging cameras: SBIG ST-10XME

    Mounts: Skywatcher NEQ6 PRO

    Guiding telescopes or lenses: William Optics zenithstar 1 80x480

    Guiding cameras: Meade DSI C

    Software: PHD Guiding  ·  CCDStack  ·  Photoshop  ·  Software Bisque TheSky6 Pro  ·  eqmod  ·  ccdsoft

    Filters: Baader Planetarium SII 8.5nm 1.25"  ·  Ha 5nm  ·  Baader Planetariun OIII 8.5nm 1.25"


    Dates:Aug. 30, 2009

    Frames: 70x600"

    Integration: 11.7 hours

    Avg. Moon age: 10.10 days

    Avg. Moon phase: 77.30%


    Basic astrometry details

    Astrometry.net job: 3528841

    RA center: 23h 20' 49"

    DEC center: +61° 12' 57"

    Pixel scale: 1.819 arcsec/pixel

    Orientation: 269.799 degrees

    Field radius: 0.571 degrees


    Resolution: 1831x1326

    Data source: Backyard

    Description

    NGC 7635, also called the Bubble Nebula and Sharpless 162, is a H II region[2] emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7[2] magnitude young central star, the 15 ± 5 M☉[4] SAO 20575 (BD+60 2522).[7] 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.[7] It was discovered in 1787 by Friedrich Wilhelm Herschel.[6] The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.

    Tricolor Emission Line Image

    Instruments and exposure data:

    W.O FLT110 with dedicated TMB field flattener
    FeatherTouch 3'' focuser
    Starizona MicroTouch autofocuser
    W.O ZS80 ED
    SBIG ST10XME CFW9
    Meade DSI
    Filters:
    SII 8nm Baader Planetarium
    Ha 5nm Astrodon
    OIII 8.5nm Baader Planetarium

    Sky-Watcher EQ6 Pro

    SII :26*10min bin1x1
    Ha :20*10min bin1x1
    OIII:24*10min bin1x1

    Total exposure time:11h40min

    Comments

    Author

    arasteo
    Theodore Arampatz...
    License: None (All rights reserved)
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    NGC 7635: THE BUBBLE NEBULA, 



    
        

            Theodore Arampatz...