Eta Carinae Nebula

The Great Nebula in Carina (NGC 3372) is a naked eye object in the Southern Hemisphere and is very popular with amateur astonomers. It is a star forming region of H II gas.

The bright central star, Eta Carina (just below centre) is regarded as a potential supernova candidate. It is a stellar system of two stars, shining at five million times that of the Sun. It is partially obscured by a massive bi-polar nebula called the Homunculous, which can be seen in the image.

Image taken from my home location.

OBJECT:  
Constellation Carina Altitude: 59° above S
Magnitude: +1.0 Apparent Size 120′
Diameter 349 light years Distance 10,000 light years
IMAGE:
Exposure: 65 min Gain: 233
Date 2019-02-24 Time: approx 11.47 pm
Location: Home Sky: Suburban pollution
Cloud: Mostly clear. Moon: rose 10.55 pm, mag -10.7
Acquisition: SharpCap live stack. Processing: DSS, GIMP
Cropping: Yes
GEAR:
Telescope: Skywatcher Esprit 120ED Type: APO triplet refractor
Focal: 840 mm F/7 Mount: SkyWatcher EQ6-R Pro
Camera: ZWO ASI 071 MC Pro Type: CMOS 28.4mm 16 Mpx
Optical aids: Flattener: yes; filter: no. Guiding: No
Polar aligning: QHYCCD PoleMaster Polar Error: 02’ 10”

Also relevant:

My Eta Carinae Nebula image taken a year ago with a DSLR.

Geek Log:

[ZWO ASI071MC Pro]
Debayer Preview=On
Pan=0
Tilt=0
Output Format=PNG files (*.png)
Binning=1
Capture Area=4944×3284
Colour Space=RAW16
Hardware Binning=Off
Turbo USB=100
Flip=None
Frame Rate Limit=Maximum
Gain=233
Exposure=44.010596
Timestamp Frames=Off
White Bal (B)=50
White Bal (R)=53
Brightness=12
Temperature=2.1
Cooler Power=100
Target Temperature=-15
Cooler=On
Auto Exp Max Gain=300
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Mono Bin=Off
Anti Dew Heater=Off
Banding Threshold=35
Banding Suppression=0
Apply Flat=None
Subtract Dark=C:\Users\Roger\Desktop\SharpCap Captures\darks\ZWO ASI071MC Pro\RAW16@4944×3284\25.9s\gain_92\dark_20_frames_-12.3C_2019-02-09T10_58_25.png
#Black Point
Display Black Point=0
#MidTone Point
Display MidTone Point=0.5
#White Point
Display White Point=1
TimeStamp=2019-02-24T12:47:52.0546669Z
SharpCapVersion=3.2.5892.0
TotalExposure(s)=3919.22906599999
StackedFrames=98


Images © Roger Powell


 

2 Comments

  1. What are your views on the “music of the spheres”? Is there an ongoing interest in the idea? Thanks, Fran

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