David's Astronomy Pages
CCD Images - Session 605 (2017-11-17)

Objects Session Notes
Bullet NGC 100 - Spiral Galaxy
Bullet M33 - Spiral Galaxy ("Pinwheel Galaxy")
Bullet Leonid Meteor
   
Bullet Photometric Monitoring - Variables
  None
   
Bullet Astrometric Monitoring - Nearby Stars
  None
- Early morning session (1.5 hrs duration).
Clear skies, but poor seeing & wind
- Session operated under semi-automated control, with remote monitoring from indoors computer.  
- Main aim of the session were to continue testing dual scope/dual camera operation with autoguiding
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding
- POTH Hub
- PHD2 Guiding
- Semi/Full Automated Operation  (integrated imaging & guiding using CCDApp2 & PHD2)
- Secondary aim was to test VB2015 version of CCDApp2 and test bug fixes /changes in VB2010 version
- Ambient Temperature:  1 - 3 degC (minimum)
- Notes from 2017-11-17 >>
    

NGC 100 - Spiral Galaxy

NGC 100 (Pisces)
(image affected by wind/poor seeing)
Image
CCD Image (50% size)
5 x 120s exposure (average combine), 3x3 binning, C Filter
2017-11-17 01:27h UT (#605003-09)
12" LX200R  (at f/10.4) + ST-10XME
(Autoguided using TS 80mm APO + ZWO ASI178MC)
 
NGC 100 - Earlier Image (2017-11-02)
(low contrast against sky background
full moon just 20 deg away)
Image
CCD Image (50% size)
7 x 30s exposure (average combine), 3x3 binning, C Filter
2017-11-02 20:09h UT (#603130-43)
12" LX200R  (at f/10.4) + ST-10XME

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M33 - Spiral Galaxy ("Pinwheel Galaxy")

M33 (Triangulum)
(image frames affected by wind/poor seeing)
Image 
CCD Image (75% size)
4 x 120s exposure (average combine), 3x3 binning, C Filter 
2017-11-18 01:45hUT (#605014-19)
12" LX200R  (at f/10.4) + ST-10XME
(Autoguided using TS 80mm APO + ZWO ASI178MC)
 
M33 - Earlier Image (2006)
Image taken under much better sky conditons
Image 
CCD Image Mosaic (cropped)
3 min exposure , 2x2 binning, C Filter
2006-11-16 22:24 h UT (#152233-45)
8" LX200 Classic + ST-7E

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 Leonid Meteor

Leonid Meteor - 2017-11-17 04:16hUT
(Image taken with Oculus All Sky Camera)
Image 
Annotated All Sky Camera Image (50%, cropped)
See picture for details on time/exposure
[ Alt Image ]
 
Leonid Meteor - Detail
The approximate radiant for the Leonids is shown by a white cross (X)
The meteor is consistent with this radiant and confirms the meteor as a leonid
Image 
Annotated All Sky Camera Image (75%, cropped)
Image details as above
[ Full Size ]
 
Leonid Meteor - Detail
Image 
All Sky Camera Image (100%, cropped)
Image Details as above
 
Meteor - Confirmation
Difference Images (frame - frame before) are used to confirm that the object
is a meteor rather than a flash from an Iridium satellite.
The former will show no black trace in the event image itself
and no white traces in the difference images before/after the event,
whilst a satellite will show at least some trace leading-in and/or leading-out of the main event,
Image 
All Sky Camera Image (100%, cropped)
Image Details as above

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