Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  11.90  ·  12 Mon  ·  130 Elektra  ·  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2246  ·  NGC 2252  ·  NGC2237  ·  NGC2238  ·  NGC2239  ·  NGC2244  ·  NGC2246  ·  NGC2252  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  Rosette nebula  ·  Sh2-275  ·  The star 12Mon
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Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile
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Rosette Nebula and Main-Belt Asteroid (130) Elektra

Getting plate-solving status, please wait...
Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile
Powered byPixInsight

Rosette Nebula and Main-Belt Asteroid (130) Elektra

Imaging telescopes or lenses: Stellarvue SVX080T-3SV

Imaging cameras: ZWO ASI2600MC Pro

Mounts: Losmandy G11 Gemini 2

Guiding telescopes or lenses: ZWO 60280 Guide Scope

Guiding cameras: ZWO ASI120MM Mini

Focal reducers: Stellarvue SFF3-80

Software: Phd2  ·  Pleaides Astrophoto PixInsight 1.8.8-6  ·  SharpCap 2.9  ·  Photoshop CC 2019  ·  DeepSkyStacker (DSS) deepskystacker


Dates:Feb. 7, 2021

Frames: 300x180" (15h) (gain: 100.00) -10C

Integration: 15h

Darks: ~55

Flats: ~55

Flat darks: ~55

Avg. Moon age: 25.09 days

Avg. Moon phase: 20.68%

Bortle Dark-Sky Scale: 3.00


Astrometry.net job: 4226508

RA center: 6h 32' 9"

DEC center: +4° 58' 20"

Pixel scale: 1.598 arcsec/pixel

Orientation: 21.268 degrees

Field radius: 1.665 degrees


Resolution: 6232x4176

Locations: Home, Flagstaff, AZ, United States

Data source: Backyard

Description

I wish I could say I had planned this, but better to be lucky than good sometimes!

As I was watching the live stack of my imaging session in Sharpcap, I noticed an anomaly of sorts. I wrote it off as some sort of artifact, a satellite, plane, hot pixel or other camera noise that would work itself out in calibration and processing.

The next night there it was again, but in a slightly different place. I opened the asteroid data in SkySafari and there it was! (130) Elektra, a 180km Main-Belt asteroid was working its way across the sky right next to my chosen target, the Rosette Nebula. What a cool surprise!

I ended up masking the asteroid in from a stack of all of my subs in order to maintain a bit more consistency over the four evenings of imaging. It was interesting to see how poorly image capture had gone on the third night because of unstable seeing and high FWHM that had led to me culling most of that night's subs in the main stack for the nebula, resulting in virtually no third segment in that stack. (I kept 15 hours of a total of 19.95 captured.)

Comments

Revisions

  • Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile
    Original
  • Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile
    B
  • Final
    Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile
    C

B

Description: Blended stars inside the nebula better.

Uploaded: ...

C

Description: Pulled up background reds slightly

Uploaded: ...

Sky plot

Sky plot

Histogram

Rosette Nebula and Main-Belt Asteroid (130) Elektra, 



    
        

            Anthony Quintile